Any hindrance to the passage of air into and out of the lungs.
Any impairment, arrest, or reversal of the normal flow of INTESTINAL CONTENTS toward the ANAL CANAL.
Physiologically, the opposition to flow of air caused by the forces of friction. As a part of pulmonary function testing, it is the ratio of driving pressure to the rate of air flow.
Blockage in any part of the URETER causing obstruction of urine flow from the kidney to the URINARY BLADDER. The obstruction may be congenital, acquired, unilateral, bilateral, complete, partial, acute, or chronic. Depending on the degree and duration of the obstruction, clinical features vary greatly such as HYDRONEPHROSIS and obstructive nephropathy.
Any disorder marked by obstruction of conducting airways of the lung. AIRWAY OBSTRUCTION may be acute, chronic, intermittent, or persistent.
Measure of the maximum amount of air that can be expelled in a given number of seconds during a FORCED VITAL CAPACITY determination . It is usually given as FEV followed by a subscript indicating the number of seconds over which the measurement is made, although it is sometimes given as a percentage of forced vital capacity.
Measurement of the various processes involved in the act of respiration: inspiration, expiration, oxygen and carbon dioxide exchange, lung volume and compliance, etc.
A form of bronchial disorder with three distinct components: airway hyper-responsiveness (RESPIRATORY HYPERSENSITIVITY), airway INFLAMMATION, and intermittent AIRWAY OBSTRUCTION. It is characterized by spasmodic contraction of airway smooth muscle, WHEEZING, and dyspnea (DYSPNEA, PAROXYSMAL).
Pathological processes involving any part of the LARYNX which coordinates many functions such as voice production, breathing, swallowing, and coughing.
Measurement of volume of air inhaled or exhaled by the lung.
The structural changes in the number, mass, size and/or composition of the airway tissues.
The volume of air that is exhaled by a maximal expiration following a maximal inspiration.
The larger air passages of the lungs arising from the terminal bifurcation of the TRACHEA. They include the largest two primary bronchi which branch out into secondary bronchi, and tertiary bronchi which extend into BRONCHIOLES and PULMONARY ALVEOLI.
Any hindrance to the passage of air into and out of the nose. The obstruction may be unilateral or bilateral, and may involve any part of the NASAL CAVITY.
Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.
The tubular and cavernous organs and structures, by means of which pulmonary ventilation and gas exchange between ambient air and the blood are brought about.
Inflammation of the large airways in the lung including any part of the BRONCHI, from the PRIMARY BRONCHI to the TERTIARY BRONCHI.
Congenital malformation characterized by MICROGNATHIA or RETROGNATHIA; GLOSSOPTOSIS and CLEFT PALATE. The mandibular abnormalities often result in difficulties in sucking and swallowing. The syndrome may be isolated or associated with other syndromes (e.g., ANDERSEN SYNDROME; CAMPOMELIC DYSPLASIA). Developmental mis-expression of SOX9 TRANSCRIPTION FACTOR gene on chromosome 17q and its surrounding region is associated with the syndrome.
Hindrance of the passage of luminal contents in the DUODENUM. Duodenal obstruction can be partial or complete, and caused by intrinsic or extrinsic factors. Simple obstruction is associated with diminished or stopped flow of luminal contents. Strangulating obstruction is associated with impaired blood flow to the duodenum in addition to obstructed flow of luminal contents.
Tendency of the smooth muscle of the tracheobronchial tree to contract more intensely in response to a given stimulus than it does in the response seen in normal individuals. This condition is present in virtually all symptomatic patients with asthma. The most prominent manifestation of this smooth muscle contraction is a decrease in airway caliber that can be readily measured in the pulmonary function laboratory.
Measurement of the volume of gas in the lungs, including that which is trapped in poorly communicating air spaces. It is of particular use in chronic obstructive pulmonary disease and emphysema. (Segen, Dictionary of Modern Medicine, 1992)
Curves depicting MAXIMAL EXPIRATORY FLOW RATE, in liters/second, versus lung inflation, in liters or percentage of lung capacity, during a FORCED VITAL CAPACITY determination. Common abbreviation is MEFV.
Endoscopic examination, therapy or surgery of the bronchi.
The total volume of gas inspired or expired per unit of time, usually measured in liters per minute.
Narrowing of the caliber of the BRONCHI, physiologically or as a result of pharmacological intervention.
Blocked urine flow through the bladder neck, the narrow internal urethral opening at the base of the URINARY BLADDER. Narrowing or strictures of the URETHRA can be congenital or acquired. It is often observed in males with enlarged PROSTATE glands.
Partial or complete blockage in any part of the URETHRA that can lead to difficulty or inability to empty the URINARY BLADDER. It is characterized by an enlarged, often damaged, bladder with frequent urges to void.
Tests involving inhalation of allergens (nebulized or in dust form), nebulized pharmacologically active solutions (e.g., histamine, methacholine), or control solutions, followed by assessment of respiratory function. These tests are used in the diagnosis of asthma.
Agents that cause an increase in the expansion of a bronchus or bronchial tubes.
A disease of chronic diffuse irreversible airflow obstruction. Subcategories of COPD include CHRONIC BRONCHITIS and PULMONARY EMPHYSEMA.
The hindering of output from the STOMACH into the SMALL INTESTINE. This obstruction may be of mechanical or functional origin such as EDEMA from PEPTIC ULCER; NEOPLASMS; FOREIGN BODIES; or AGING.
The physical or mechanical action of the LUNGS; DIAPHRAGM; RIBS; and CHEST WALL during respiration. It includes airflow, lung volume, neural and reflex controls, mechanoreceptors, breathing patterns, etc.
The volume of air contained in the lungs at the end of a maximal inspiration. It is the equivalent to each of the following sums: VITAL CAPACITY plus RESIDUAL VOLUME; INSPIRATORY CAPACITY plus FUNCTIONAL RESIDUAL CAPACITY; TIDAL VOLUME plus INSPIRATORY RESERVE VOLUME plus functional residual capacity; or tidal volume plus inspiratory reserve volume plus EXPIRATORY RESERVE VOLUME plus residual volume.
Occlusion of the outflow tract in either the LEFT VENTRICLE or the RIGHT VENTRICLE of the heart. This may result from CONGENITAL HEART DEFECTS, predisposing heart diseases, complications of surgery, or HEART NEOPLASMS.
Surgical incision of the trachea.
Developmental or acquired stricture or narrowing of the LARYNX. Symptoms of respiratory difficulty depend on the degree of laryngeal narrowing.
The volume of air remaining in the LUNGS at the end of a maximal expiration. Common abbreviation is RV.
The mucous membrane lining the RESPIRATORY TRACT, including the NASAL CAVITY; the LARYNX; the TRACHEA; and the BRONCHI tree. The respiratory mucosa consists of various types of epithelial cells ranging from ciliated columnar to simple squamous, mucous GOBLET CELLS, and glands containing both mucous and serous cells.
A procedure involving placement of a tube into the trachea through the mouth or nose in order to provide a patient with oxygen and anesthesia.
Helium. A noble gas with the atomic symbol He, atomic number 2, and atomic weight 4.003. It is a colorless, odorless, tasteless gas that is not combustible and does not support combustion. It was first detected in the sun and is now obtained from natural gas. Medically it is used as a diluent for other gases, being especially useful with oxygen in the treatment of certain cases of respiratory obstruction, and as a vehicle for general anesthetics. (Dorland, 27th ed)
Plasma glycoprotein member of the serpin superfamily which inhibits TRYPSIN; NEUTROPHIL ELASTASE; and other PROTEOLYTIC ENZYMES.
A tubular organ of VOICE production. It is located in the anterior neck, superior to the TRACHEA and inferior to the tongue and HYOID BONE.
A tree of the family Sterculiaceae (or Byttneriaceae), usually Theobroma cacao, or its seeds, which after fermentation and roasting, yield cocoa and chocolate.
The rate of airflow measured during a FORCED VITAL CAPACITY determination.
Difficult or labored breathing.
Abnormal accumulation of fluid in tissues of any part of the LARYNX, commonly associated with laryngeal injuries and allergic reactions.
A short-acting beta-2 adrenergic agonist that is primarily used as a bronchodilator agent to treat ASTHMA. Albuterol is prepared as a racemic mixture of R(-) and S(+) stereoisomers. The stereospecific preparation of R(-) isomer of albuterol is referred to as levalbuterol.
The airflow rate measured during the first liter expired after the first 200 ml have been exhausted during a FORCED VITAL CAPACITY determination. Common abbreviations are MEFR, FEF 200-1200, and FEF 0.2-1.2.
Washing liquid obtained from irrigation of the lung, including the BRONCHI and the PULMONARY ALVEOLI. It is generally used to assess biochemical, inflammatory, or infection status of the lung.
A form of hypersensitivity affecting the respiratory tract. It includes ASTHMA and RHINITIS, ALLERGIC, SEASONAL.
The administration of drugs by the respiratory route. It includes insufflation into the respiratory tract.
Enlargement of air spaces distal to the TERMINAL BRONCHIOLES where gas-exchange normally takes place. This is usually due to destruction of the alveolar wall. Pulmonary emphysema can be classified by the location and distribution of the lesions.
The volume of air remaining in the LUNGS at the end of a normal, quiet expiration. It is the sum of the RESIDUAL VOLUME and the EXPIRATORY RESERVE VOLUME. Common abbreviation is FRC.
Surgical formation of an opening into the trachea through the neck, or the opening so created.
Interference with the secretion of tears by the lacrimal glands. Obstruction of the LACRIMAL SAC or NASOLACRIMAL DUCT causing acute or chronic inflammation of the lacrimal sac (DACRYOCYSTITIS). It is caused also in infants by failure of the nasolacrimal duct to open into the inferior meatus and occurs about the third week of life. In adults occlusion may occur spontaneously or after injury or nasal disease. (Newell, Ophthalmology: Principles and Concepts, 7th ed, p250)
A thin leaf-shaped cartilage that is covered with LARYNGEAL MUCOSA and situated posterior to the root of the tongue and HYOID BONE. During swallowing, the epiglottis folds back over the larynx inlet thus prevents foods from entering the airway.
Colloids with a gaseous dispersing phase and either liquid (fog) or solid (smoke) dispersed phase; used in fumigation or in inhalation therapy; may contain propellant agents.
The act of breathing with the LUNGS, consisting of INHALATION, or the taking into the lungs of the ambient air, and of EXHALATION, or the expelling of the modified air which contains more CARBON DIOXIDE than the air taken in (Blakiston's Gould Medical Dictionary, 4th ed.). This does not include tissue respiration (= OXYGEN CONSUMPTION) or cell respiration (= CELL RESPIRATION).
A type of oropharyngeal airway that provides an alternative to endotracheal intubation and standard mask anesthesia in certain patients. It is introduced into the hypopharynx to form a seal around the larynx thus permitting spontaneous or positive pressure ventilation without penetration of the larynx or esophagus. It is used in place of a facemask in routine anesthesia. The advantages over standard mask anesthesia are better airway control, minimal anesthetic gas leakage, a secure airway during patient transport to the recovery area, and minimal postoperative problems.
The act of BREATHING in.
Diseases of domestic and wild horses of the species Equus caballus.
The viscous secretion of mucous membranes. It contains mucin, white blood cells, water, inorganic salts, and exfoliated cells.
Respiratory support system used primarily with rates of about 100 to 200/min with volumes of from about one to three times predicted anatomic dead space. Used to treat respiratory failure and maintain ventilation under severe circumstances.
A sudden, audible expulsion of air from the lungs through a partially closed glottis, preceded by inhalation. It is a protective response that serves to clear the trachea, bronchi, and/or lungs of irritants and secretions, or to prevent aspiration of foreign materials into the lungs.
Spasmodic contraction of the smooth muscle of the bronchi.
Evaluation, planning, and use of a range of procedures and airway devices for the maintenance or restoration of a patient's ventilation.
Noises, normal and abnormal, heard on auscultation over any part of the RESPIRATORY TRACT.
A funnel-shaped fibromuscular tube that conducts food to the ESOPHAGUS, and air to the LARYNX and LUNGS. It is located posterior to the NASAL CAVITY; ORAL CAVITY; and LARYNX, and extends from the SKULL BASE to the inferior border of the CRICOID CARTILAGE anteriorly and to the inferior border of the C6 vertebra posteriorly. It is divided into the NASOPHARYNX; OROPHARYNX; and HYPOPHARYNX (laryngopharynx).
A disorder characterized by recurrent apneas during sleep despite persistent respiratory efforts. It is due to upper airway obstruction. The respiratory pauses may induce HYPERCAPNIA or HYPOXIA. Cardiac arrhythmias and elevation of systemic and pulmonary arterial pressures may occur. Frequent partial arousals occur throughout sleep, resulting in relative SLEEP DEPRIVATION and daytime tiredness. Associated conditions include OBESITY; ACROMEGALY; MYXEDEMA; micrognathia; MYOTONIC DYSTROPHY; adenotonsilar dystrophy; and NEUROMUSCULAR DISEASES. (From Adams et al., Principles of Neurology, 6th ed, p395)
Disorders characterized by multiple cessations of respirations during sleep that induce partial arousals and interfere with the maintenance of sleep. Sleep apnea syndromes are divided into central (see SLEEP APNEA, CENTRAL), obstructive (see SLEEP APNEA, OBSTRUCTIVE), and mixed central-obstructive types.
Congenital anomalous dilitation of the laryngeal saccule that may extend internally into the airway or externally through the thyrohyoid membrane.
The force per unit area that the air exerts on any surface in contact with it. Primarily used for articles pertaining to air pressure within a closed environment.
Radiography of the bronchial tree after injection of a contrast medium.
Analogs and derivatives of atropine.
The technology of transmitting light over long distances through strands of glass or other transparent material.
Recording of change in the size of a part as modified by the circulation in it.
Surgical removal of an obstructing clot or foreign material which has been transported from a distant vessel by the bloodstream. Removal of a clot at its original site is called THROMBECTOMY.
Inflammation involving the GLOTTIS or VOCAL CORDS and the subglottic larynx. Croup is characterized by a barking cough, HOARSENESS, and persistent inspiratory STRIDOR (a high-pitched breathing sound). It occurs chiefly in infants and children.
Inhaling and exhaling the smoke of burning TOBACCO.
Examination, therapy or surgery of the interior of the larynx performed with a specially designed endoscope.
A technique of respiratory therapy, in either spontaneously breathing or mechanically ventilated patients, in which airway pressure is maintained above atmospheric pressure throughout the respiratory cycle by pressurization of the ventilatory circuit. (On-Line Medical Dictionary [Internet]. Newcastle upon Tyne(UK): The University Dept. of Medical Oncology: The CancerWEB Project; c1997-2003 [cited 2003 Apr 17]. Available from: http://cancerweb.ncl.ac.uk/omd/)
Act of listening for sounds within the body.
Granular leukocytes with a nucleus that usually has two lobes connected by a slender thread of chromatin, and cytoplasm containing coarse, round granules that are uniform in size and stainable by eosin.
A muscarinic antagonist structurally related to ATROPINE but often considered safer and more effective for inhalation use. It is used for various bronchial disorders, in rhinitis, and as an antiarrhythmic.
The capability of the LUNGS to distend under pressure as measured by pulmonary volume change per unit pressure change. While not a complete description of the pressure-volume properties of the lung, it is nevertheless useful in practice as a measure of the comparative stiffness of the lung. (From Best & Taylor's Physiological Basis of Medical Practice, 12th ed, p562)
A disorder in which the adductor muscles of the VOCAL CORDS exhibit increased activity leading to laryngeal spasm. Laryngismus causes closure of the VOCAL FOLDS and airflow obstruction during inspiration.
The bottom portion of the pharynx situated below the OROPHARYNX and posterior to the LARYNX. The hypopharynx communicates with the larynx through the laryngeal inlet, and is also called laryngopharynx.
Measurement of rate of airflow over the middle half of a FORCED VITAL CAPACITY determination (from the 25 percent level to the 75 percent level). Common abbreviations are MMFR and FEF 25%-75%.
These include the muscles of the DIAPHRAGM and the INTERCOSTAL MUSCLES.
Material coughed up from the lungs and expectorated via the mouth. It contains MUCUS, cellular debris, and microorganisms. It may also contain blood or pus.
The cartilaginous and membranous tube descending from the larynx and branching into the right and left main bronchi.
A pathological accumulation of air in tissues or organs.
A quaternary ammonium parasympathomimetic agent with the muscarinic actions of ACETYLCHOLINE. It is hydrolyzed by ACETYLCHOLINESTERASE at a considerably slower rate than ACETYLCHOLINE and is more resistant to hydrolysis by nonspecific CHOLINESTERASES so that its actions are more prolonged. It is used as a parasympathomimetic bronchoconstrictor agent and as a diagnostic aid for bronchial asthma. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1116)
Pathological processes involving any part of the LUNG.
Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.
The volume of air inspired or expired during each normal, quiet respiratory cycle. Common abbreviations are TV or V with subscript T.
Congenital conditions in individuals with a female karyotype, in which the development of the gonadal or anatomical sex is atypical.
The measurement of frequency or oscillation changes.
Simultaneous and continuous monitoring of several parameters during sleep to study normal and abnormal sleep. The study includes monitoring of brain waves, to assess sleep stages, and other physiological variables such as breathing, eye movements, and blood oxygen levels which exhibit a disrupted pattern with sleep disturbances.
Levels within a diagnostic group which are established by various measurement criteria applied to the seriousness of a patient's disorder.
Impairment of bile flow due to obstruction in small bile ducts (INTRAHEPATIC CHOLESTASIS) or obstruction in large bile ducts (EXTRAHEPATIC CHOLESTASIS).
Unstriated and unstriped muscle, one of the muscles of the internal organs, blood vessels, hair follicles, etc. Contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei. Smooth muscle fibers are bound together into sheets or bundles by reticular fibers and frequently elastic nets are also abundant. (From Stedman, 25th ed)
An autosomal recessive genetic disease of the EXOCRINE GLANDS. It is caused by mutations in the gene encoding the CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCE REGULATOR expressed in several organs including the LUNG, the PANCREAS, the BILIARY SYSTEM, and the SWEAT GLANDS. Cystic fibrosis is characterized by epithelial secretory dysfunction associated with ductal obstruction resulting in AIRWAY OBSTRUCTION; chronic RESPIRATORY INFECTIONS; PANCREATIC INSUFFICIENCY; maldigestion; salt depletion; and HEAT PROSTRATION.
Physiological processes and properties of the RESPIRATORY SYSTEM as a whole or of any of its parts.
A method of mechanical ventilation in which pressure is maintained to increase the volume of gas remaining in the lungs at the end of expiration, thus reducing the shunting of blood through the lungs and improving gas exchange.
Abnormal enlargement or swelling of a KIDNEY due to dilation of the KIDNEY CALICES and the KIDNEY PELVIS. It is often associated with obstruction of the URETER or chronic kidney diseases that prevents normal drainage of urine into the URINARY BLADDER.
A pair of cone-shaped elastic mucous membrane projecting from the laryngeal wall and forming a narrow slit between them. Each contains a thickened free edge (vocal ligament) extending from the THYROID CARTILAGE to the ARYTENOID CARTILAGE, and a VOCAL MUSCLE that shortens or relaxes the vocal cord to control sound production.
Impairment of bile flow in the large BILE DUCTS by mechanical obstruction or stricture due to benign or malignant processes.
The small airways branching off the TERTIARY BRONCHI. Terminal bronchioles lead into several orders of respiratory bronchioles which in turn lead into alveolar ducts and then into PULMONARY ALVEOLI.
An enlarged THYROID GLAND with at least 50% of the gland situated behind the STERNUM. It is an unusual presentation of an intrathoracic goiter. Substernal goiters frequently cause compression on the TRACHEA leading to deviation, narrowing, and respiratory symptoms.
An amine derived by enzymatic decarboxylation of HISTIDINE. It is a powerful stimulant of gastric secretion, a constrictor of bronchial smooth muscle, a vasodilator, and also a centrally acting neurotransmitter.
The middle portion of the pharynx that lies posterior to the mouth, inferior to the SOFT PALATE, and superior to the base of the tongue and EPIGLOTTIS. It has a digestive function as food passes from the mouth into the oropharynx before entering ESOPHAGUS.
A pulmonary ventilation rate faster than is metabolically necessary for the exchange of gases. It is the result of an increased frequency of breathing, an increased tidal volume, or a combination of both. It causes an excess intake of oxygen and the blowing off of carbon dioxide.
Severe cellulitis of the submaxillary space with secondary involvement of the sublingual and submental space. It usually results from infection in the lower molar area or from a penetrating injury to the mouth floor. (From Dorland, 27th ed)
Naturally occurring or experimentally induced animal diseases with pathological processes sufficiently similar to those of human diseases. They are used as study models for human diseases.
Care of patients with deficiencies and abnormalities associated with the cardiopulmonary system. It includes the therapeutic use of medical gases and their administrative apparatus, environmental control systems, humidification, aerosols, ventilatory support, bronchopulmonary drainage and exercise, respiratory rehabilitation, assistance with cardiopulmonary resuscitation, and maintenance of natural, artificial, and mechanical airways.
The muscles of the PHARYNX are voluntary muscles arranged in two layers. The external circular layer consists of three constrictors (superior, middle, and inferior). The internal longitudinal layer consists of the palatopharyngeus, the salpingopharyngeus, and the stylopharyngeus. During swallowing, the outer layer constricts the pharyngeal wall and the inner layer elevates pharynx and LARYNX.
Procedure in which patients are induced into an unconscious state through use of various medications so that they do not feel pain during surgery.
Diseases of the respiratory system in general or unspecified or for a specific respiratory disease not available.
Hypertrophy and dilation of the RIGHT VENTRICLE of the heart that is caused by PULMONARY HYPERTENSION. This condition is often associated with pulmonary parenchymal or vascular diseases, such as CHRONIC OBSTRUCTIVE PULMONARY DISEASE and PULMONARY EMBOLISM.
A selective beta-2 adrenergic agonist used as a bronchodilator and tocolytic.
Large, hoofed mammals of the family EQUIDAE. Horses are active day and night with most of the day spent seeking and consuming food. Feeding peaks occur in the early morning and late afternoon, and there are several daily periods of rest.
The act of dilating.
Congenital or acquired paralysis of one or both VOCAL CORDS. This condition is caused by defects in the CENTRAL NERVOUS SYSTEM, the VAGUS NERVE and branches of LARYNGEAL NERVES. Common symptoms are VOICE DISORDERS including HOARSENESS or APHONIA.
Agents causing the narrowing of the lumen of a bronchus or bronchiole.
The act of BREATHING out.
Elements of limited time intervals, contributing to particular results or situations.
Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.
Diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care. (Dictionary of Health Services Management, 2d ed)
Persistent abnormal dilatation of the bronchi.
Altered reactivity to an antigen, which can result in pathologic reactions upon subsequent exposure to that particular antigen.
Concretions of swallowed hair, fruit or vegetable fibers, or similar substances found in the alimentary canal.
A transient absence of spontaneous respiration.
Earth or other matter in fine, dry particles. (Random House Unabridged Dictionary, 2d ed)
Absence of air in the entire or part of a lung, such as an incompletely inflated neonate lung or a collapsed adult lung. Pulmonary atelectasis can be caused by airway obstruction, lung compression, fibrotic contraction, or other factors.
The small thick cartilage that forms the lower and posterior parts of the laryngeal wall.
A part of the upper respiratory tract. It contains the organ of SMELL. The term includes the external nose, the nasal cavity, and the PARANASAL SINUSES.
A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.
A type of stress exerted uniformly in all directions. Its measure is the force exerted per unit area. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration.
Conditions resulting from abnormalities in the arteries branching from the ASCENDING AORTA, the curved portion of the aorta. These syndromes are results of occlusion or abnormal blood flow to the head-neck or arm region leading to neurological defects and weakness in an arm. These syndromes are associated with vascular malformations; ATHEROSCLEROSIS; TRAUMA; and blood clots.
Abnormal increase of EOSINOPHILS in the blood, tissues or organs.
Procedures of applying ENDOSCOPES for disease diagnosis and treatment. Endoscopy involves passing an optical instrument through a small incision in the skin i.e., percutaneous; or through a natural orifice and along natural body pathways such as the digestive tract; and/or through an incision in the wall of a tubular structure or organ, i.e. transluminal, to examine or perform surgery on the interior parts of the body.
Pulmonary injury following the breathing in of toxic smoke from burning materials such as plastics, synthetics, building materials, etc. This injury is the most frequent cause of death in burn patients.
Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting.
A movable fold suspended from the posterior border of the hard palate. The uvula hangs from the middle of the lower border.
A class of drugs designed to prevent leukotriene synthesis or activity by blocking binding at the receptor level.
Any method of artificial breathing that employs mechanical or non-mechanical means to force the air into and out of the lungs. Artificial respiration or ventilation is used in individuals who have stopped breathing or have RESPIRATORY INSUFFICIENCY to increase their intake of oxygen (O2) and excretion of carbon dioxide (CO2).
Cells that line the inner and outer surfaces of the body by forming cellular layers (EPITHELIUM) or masses. Epithelial cells lining the SKIN; the MOUTH; the NOSE; and the ANAL CANAL derive from ectoderm; those lining the RESPIRATORY SYSTEM and the DIGESTIVE SYSTEM derive from endoderm; others (CARDIOVASCULAR SYSTEM and LYMPHATIC SYSTEM) derive from mesoderm. Epithelial cells can be classified mainly by cell shape and function into squamous, glandular and transitional epithelial cells.
The act of blowing a powder, vapor, or gas into any body cavity for experimental, diagnostic, or therapeutic purposes.
Disease having a short and relatively severe course.
A muscular organ in the mouth that is covered with pink tissue called mucosa, tiny bumps called papillae, and thousands of taste buds. The tongue is anchored to the mouth and is vital for chewing, swallowing, and for speech.
Surgical removal of a tonsil or tonsils. (Dorland, 28th ed)
Abnormally small jaw.
Pathological development in the ILEUM including the ILEOCECAL VALVE.
RESPIRATORY MUSCLE contraction during INHALATION. The work is accomplished in three phases: LUNG COMPLIANCE work, that required to expand the LUNGS against its elastic forces; tissue resistance work, that required to overcome the viscosity of the lung and chest wall structures; and AIRWAY RESISTANCE work, that required to overcome airway resistance during the movement of air into the lungs. Work of breathing does not refer to expiration, which is entirely a passive process caused by elastic recoil of the lung and chest cage. (Guyton, Textbook of Medical Physiology, 8th ed, p406)
A condition of substandard growth or diminished capacity to maintain normal function.
Organic salts of cyanic acid containing the -OCN radical.
An infant during the first month after birth.
Infection of the lung often accompanied by inflammation.
Devices that cover the nose and mouth to maintain aseptic conditions or to administer inhaled anesthetics or other gases. (UMDNS, 1999)
Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.
A condition characterized by infiltration of the lung with EOSINOPHILS due to inflammation or other disease processes. Major eosinophilic lung diseases are the eosinophilic pneumonias caused by infections, allergens, or toxic agents.
Inflammation of the NASAL MUCOSA, the mucous membrane lining the NASAL CAVITIES.
A collection of lymphoid nodules on the posterior wall and roof of the NASOPHARYNX.
A collection of blood outside the BLOOD VESSELS. Hematoma can be localized in an organ, space, or tissue.
Inflammation of the NASAL MUCOSA in one or more of the PARANASAL SINUSES.
A gel-forming mucin that is primarily found on the surface of gastric epithelium and in the RESPIRATORY TRACT. Mucin 5AC was originally identified as two distinct proteins, however a single gene encodes the protein which gives rise to the mucin 5A and mucin 5C variants.
Compounds that bind to and stimulate ADENOSINE A1 RECEPTORS.
Excision of the adenoids. (Dorland, 28th ed)
A reduction in the amount of air entering the pulmonary alveoli.
Inanimate objects that become enclosed in the body.
Tumors or cancer of the BRONCHI.
Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.
The condition of an anatomical structure's being constricted beyond normal dimensions.
The largest cartilage of the larynx consisting of two laminae fusing anteriorly at an acute angle in the midline of the neck. The point of fusion forms a subcutaneous projection known as the Adam's apple.
Body ventilators that assist ventilation by applying intermittent subatmospheric pressure around the thorax, abdomen, or airway and periodically expand the chest wall and inflate the lungs. They are relatively simple to operate and do not require tracheostomy. These devices include the tank ventilators ("iron lung"), Portalung, Pneumowrap, and chest cuirass ("tortoise shell").
Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.
An adrenergic beta-2 agonist that is used as a bronchodilator and tocolytic.
Expectoration or spitting of blood originating from any part of the RESPIRATORY TRACT, usually from hemorrhage in the lung parenchyma (PULMONARY ALVEOLI) and the BRONCHIAL ARTERIES.
Failure to adequately provide oxygen to cells of the body and to remove excess carbon dioxide from them. (Stedman, 25th ed)
Devices that cause a liquid or solid to be converted into an aerosol (spray) or a vapor. It is used in drug administration by inhalation, humidification of ambient air, and in certain analytical instruments.
Pathological development in the JEJUNUM region of the SMALL INTESTINE.
The exchange of OXYGEN and CARBON DIOXIDE between alveolar air and pulmonary capillary blood that occurs across the BLOOD-AIR BARRIER.
The vocal apparatus of the larynx, situated in the middle section of the larynx. Glottis consists of the VOCAL FOLDS and an opening (rima glottidis) between the folds.
The noninvasive measurement or determination of the partial pressure (tension) of oxygen and/or carbon dioxide locally in the capillaries of a tissue by the application to the skin of a special set of electrodes. These electrodes contain photoelectric sensors capable of picking up the specific wavelengths of radiation emitted by oxygenated versus reduced hemoglobin.
A rare and probably congenital condition characterized by great enlargement of the lumen of the trachea and the larger bronchi.
Asthma attacks following a period of exercise. Usually the induced attack is short-lived and regresses spontaneously. The magnitude of postexertional airway obstruction is strongly influenced by the environment in which exercise is performed (i.e. inhalation of cold air during physical exertion markedly augments the severity of the airway obstruction; conversely, warm humid air blunts or abolishes it).
Measurement of oxygen and carbon dioxide in the blood.
One of a pair of small pyramidal cartilages that articulate with the lamina of the CRICOID CARTILAGE. The corresponding VOCAL LIGAMENT and several muscles are attached to it.
Inflammation of the LARYNGEAL MUCOSA, including the VOCAL CORDS. Laryngitis is characterized by irritation, edema, and reduced pliability of the mucosa leading to VOICE DISORDERS such as APHONIA and HOARSENESS.
Any tests done on exhaled air.
Non-therapeutic positive end-expiratory pressure occurring frequently in patients with severe airway obstruction. It can appear with or without the administration of external positive end-expiratory pressure (POSITIVE-PRESSURE RESPIRATION). It presents an important load on the inspiratory muscles which are operating at a mechanical disadvantage due to hyperinflation. Auto-PEEP may cause profound hypotension that should be treated by intravascular volume expansion, increasing the time for expiration, and/or changing from assist mode to intermittent mandatory ventilation mode. (From Harrison's Principles of Internal Medicine, 12th ed, p1127)
The 17-valerate derivative of BETAMETHASONE. It has substantial topical anti-inflammatory activity and relatively low systemic anti-inflammatory activity.
A class of statistical methods applicable to a large set of probability distributions used to test for correlation, location, independence, etc. In most nonparametric statistical tests, the original scores or observations are replaced by another variable containing less information. An important class of nonparametric tests employs the ordinal properties of the data. Another class of tests uses information about whether an observation is above or below some fixed value such as the median, and a third class is based on the frequency of the occurrence of runs in the data. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1284; Corsini, Concise Encyclopedia of Psychology, 1987, p764-5)
A pathologic process consisting in the formation of pus.

Exposure to nitrogen dioxide and the occurrence of bronchial obstruction in children below 2 years. (1/1199)

BACKGROUND: The objective of the investigation was to test the hypothesis that exposure to nitrogen dioxide (NO2) has a causal influence on the occurrence of bronchial obstruction in children below 2 years of age. METHODS: A nested case-control study with 153 one-to-one matched pairs was conducted within a cohort of 3754 children born in Oslo in 1992/93. Cases were children who developed > or = 2 episodes of bronchial obstruction or one episode lasting >4 weeks. Controls were matched for date of birth. Exposure measurements were performed in the same 14-day period within matched pairs. The NO2 exposure was measured with personal samplers carried close to each child and by stationary samplers outdoors and indoors. RESULTS: Few children (4.6%) were exposed to levels of NO2 > or = 30 microg/m3 (average concentration during a 14-day period). In the 153 matched pairs, the mean level of NO2 was 15.65 microg/m3 (+/-0.60, SE) among cases and 15.37 (+/-0.54) among controls (paired t = 0.38, P = 0.71). CONCLUSIONS: The results suggest that NO2 exposure at levels observed in this study has no detectable effect on the risk of developing bronchial obstruction in children below 2 years of age.  (+info)

Comparison of two new methods for the measurement of lung volumes with two standard methods. (2/1199)

BACKGROUND: The two most commonly used methods for the measurement of lung volumes are helium dilution and body plethysmography. Two methods have been developed which are both easier and less time consuming to perform. Mathematical modelling uses complex calculations from the flow-volume loop to derive total lung capacity (TLC), and the nitrogen balance technique uses nitrogen from the atmosphere to calculate lung volume in a similar way to helium dilution. This study was designed to compare the two new methods with the two standard methods. METHODS: Sixty one subjects were studied, 23 with normal lung function, 17 with restrictive airway disease, and 21 with obstructive ventilatory defects. Each subject underwent repeated measurements of TLC by each of the four methods in random order. Reproducible values were obtained for each method according to BTS/ARTP guidelines. Bland-Altman plots were constructed for comparisons between the methods and paired t tests were used to assess differences in means. RESULTS: Bland-Altman plots showed that the differences between body plethysmography and helium dilution fell into clinically acceptable ranges (agreement limits +/-0.9 l). The agreement between mathematical modelling or the nitrogen balance technique and helium dilution or body plethysmography was poor (+/-1.8-3.4 l), especially for subjects with airflow obstruction. CONCLUSIONS: Neither of the new methods agrees sufficiently with standard methods to be useful in a clinical setting.  (+info)

Respiratory mechanics in airways obstruction associated with inspiratory dyspnoea. (3/1199)

Inspiratory muscle strength and the flow and elastic pressure opposing inspiration were measured in seven patients with severe airways obstruction who found inspiration difficult at rest. A comparison was made of measurements obtained from seven normal subjects and five patients with airways obstruction not experiencing inspiratory dyspnoea at rest. Measurements were also obtained when inspiratory dyspnoea was induced in the normal subjects by adding an inspiratory resistance or by voluntarily increasing lung volume. Compared with the controls the inspiratory muscle strength of the patients was reduced but was not significantly less than that of the patients without inspiratory dyspnoea. The pressure required to produce inspiratory flow was significantly greater when inspiratory dyspnoea was present (P = 0-01). However, there was considerable overlap in the pressures of those with and without inspiratory dyspnoea. A better relationship was obtained when muscle strength was considered. The ratio of inspiratory muscle strength to the pressure required to produce flow was 0-24 +/- 0-07 (mean +/- SD) in patient with inspiratory dyspnoea, 0-10 +/- 0-03 in patients without inspiratory dyspnoea, and 0-033 +/- 0-019 in normal subjects. There was no overlap between the two patient groups. The ratios of the normal subjects were increased when inspiratory dyspnoea was induced and, with the exception of two cases, were all above those obtained when inspiratory dyspnoea was absent. Inspiratory dyspnoea was experienced with lower ratios in the normals than in the patients with airways obstruction.  (+info)

Aspects of serum and sputum antibody in chronic airways obstruction. (4/1199)

Immunoglobulin levels and precipitating antibody against a range of microbial antigens were measured in simultaneously collected serum and sputum samples from patients with chronic bronchitis (11), cystic fibrosis (9), bronchiectasis (9), and asthma (4). Sputum was prepared by dialysis and high-speed centrifugation methods. Results showed that it was possible to detect precipitating antibody in the sputum, and the rate was increased when both methods were used. A discrepancy was noted between the detection rate in the sputum and serum. This, combined with the lack of correlation between sputum and serum immunoglobulins, lack of relationship between bronchial inflammation and sputum immunoglobulins, and the lack of IgM in the sputum suggested that the antibody and immunoglobulin were locally produced. Sputum IgA (7S) in patients with chronic bronchitis was significantly lower (P less than 0-05) than that found in patients with cystic fibrosis and bronchiectasis. Significant differences (P less than 0-05) were also noted in serum IgG levels between patients with chronic bronchitis, bronchiectasis, and cystic fibrosis while serum IgM levels in patients with chronic bronchitis were significantly lower (P less than 0-05) when compared to serum levels in patients with cystic fibrosis. The presence of precipitating antibody in the sputum raises the possibility that type III reactions may be important in the pathogenesis of these conditions.  (+info)

Localised upper airway obstruction in a patient with acquired immunodeficiency syndrome. (5/1199)

We describe a case of rapidly progressive upper airway obstruction due to tracheal Pseudomonas abscesses in a patient with acquired immunodeficiency syndrome. The case highlights the aggressive nature of Pseudomonas infections and the difficulty of eradicating this organism in patients infected with the human immunodeficiency virus.  (+info)

Gastric rupture secondary to successful Heimlich manoeuvre. (6/1199)

A fatal case of gastric rupture following the Heimlich manoeuvre is reported. This life-threatening complication has only been reported previously in seven patients with a high mortality rate. All patients should be assessed immediately following this manoeuvre for any potentially life-threatening complications.  (+info)

A resuscitated case from asphyxia by large bronchial cast. (7/1199)

A 62-year-old woman with bronchiectasis suffered from asphyxia due to a large bronchial cast that obstructed the bronchial tree. Immediate bronchoscopic suction of a bronchial cast of 17 cm in length through the intubated tube relieved the patients without any complications. Large bronchial casts appear to be rare in this century but it should be considered in patients with acute exacerbation of excessive sputa not only in patients with asthma or allergy but also in patients with respiratory tract infection.  (+info)

Clinical studies of styrene workers: initial findings. (8/1199)

Styrene monomer is a high volume chemical used chiefly in production of polystyrene. A clinical survey of 493 production workers was undertaken at the oldest and largest monomer production, polymerization, and extrusion facility in the U.S. Relative exposure durations and levels were obtained from occupational histories. Significant differences between the high and low exposure groups were found with regard to history of acute prenarcotic symptoms, acute lower respiratory symptoms, prevalence of FEV 1/FV less than 75 per cent, and elevated GCTP. Other liver function tests, chest x-ray, FVC less than 80 per cent, and hematological parameters showed no distinct pattern. A concomitant mortality study has been mounted and is in progress.  (+info)

Define recurrent airway obstruction. recurrent airway obstruction synonyms, recurrent airway obstruction pronunciation, recurrent airway obstruction translation, English dictionary definition of recurrent airway obstruction. n. A respiratory disease of horses that is characterized by a chronic cough, labored breathing, and nasal discharge, and is induced by exposure to allergens...
Severe upper airway obstruction due to retropharyngeal haematoma formation following cervical trauma: Mechanical airway obstruction secondary to retropharyngeal
Lec 11 part 2 - Acute upper airway obstruction | Respiratory Tract | Larynx Endotracheal tube defects: Hidden causes of airway obstruction HUNTER??S SYNDROME: A STUDY IN AIRWAY OBSTRUCTION Pulse steroid therapy in acute airway obstruction in relapsing polychondritis Primary exophytic laryngeal amyloidosis presenting as sudden airway obstruction Airway Obstruction and the Unilateral Cleft Lip and Palate Deformity: Contributions by the Bony Septum The role of FEV 6 in the detection of airway obstruction Obstructive sleep apnea: from simple upper airway obstruction to systemic inflammation Diagnosis of Airway Obstruction or Restrictive Spirometric Patterns by Multiclass Support Vector Machines Diagnosis of Airway Obstruction or Restrictive Spirometric Patterns by Multiclass Support Vector Machines Diagnosis of Airway Obstruction or Restrictive Spirometric Patterns by Multiclass Support Vector Machines Chronic upper airway obstruction and cardiac dysfunction: anatomy, pathophysiology and anesthetic
Looking for Chronic airway obstruction? Find out information about Chronic airway obstruction. Politics delay of business, esp in a legislature by means of procedural devices Occlusion or stenosis of hollow viscera, ducts, and vessels. Anything that... Explanation of Chronic airway obstruction
Seasonal recurrent airway obstruction, also known as summer pasture-associated recurrent airway obstruction (SPA-RAO), is a seasonal airway obstructive disease of horses, characterized by clinical exacerbation after exposure to pasture during the summer. Clinical signs usually present in horses during exposure to pastures during turnout in the late spring the summer, although some horses dont develop signs until late summer or early fall. Certain mold spores, grass pollens, and species of grass trigger onset of the disease.
The influence of oral N-acetylcysteine on the exacerbation rate in patients with chronic bronchitis and severe airways obstruction has been studied. Two hundred and forty four patients entered the study during October and November 1983 and took placebo sachets for a run in month. One hundred and eighty one who completed this month satisfactorily were randomised to receive either active (acetylcysteine 200 mg three times a day) or matching placebo sachets for five months in a double blind parallel group study. The two groups were well matched. Patients kept detailed daily symptom diaries and were assessed monthly. At the end of the five months study the outcome in the group taking acetylcysteine appeared a little better, but the differences did not reach conventional levels of statistical significance for the mean (SD) number of exacerbations (2.1 (0.2) for acetylcysteine, 2.6 (0.2) for placebo; p = 0.08); total days taking an antibiotic (13.5 (1.7), 18.0 (2.8); p = 0.17); total days spent in ...
Acute airway obstruction is much more common in infants and children than in adults because of their unique anatomic and physiologic features. Even in young patients with partial airway occlusion, symptoms can be severe and potentially life-threatening. Factors that predispose children to airway com
TY - JOUR. T1 - Acute Airway Obstruction and Pulmonary Edema. AU - Hurlbert, Barbara J.. PY - 1978/3/27. Y1 - 1978/3/27. UR - http://www.scopus.com/inward/record.url?scp=0018277595&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=0018277595&partnerID=8YFLogxK. U2 - 10.1001/jama.1978.03280400021005. DO - 10.1001/jama.1978.03280400021005. M3 - Letter. C2 - 633524. AN - SCOPUS:0018277595. VL - 239. SP - 1281. JO - JAMA - Journal of the American Medical Association. JF - JAMA - Journal of the American Medical Association. SN - 0002-9955. IS - 13. ER - ...
TY - JOUR. T1 - Acute Airway Obstruction Associated with Granulation Tissue of Tracheostoma-A Case Report. AU - 建宏, 郭. PY - 2005. Y1 - 2005. M3 - 期刊論文. VL - 43. JO - Asian Journal of Anesthesiology. JF - Asian Journal of Anesthesiology. SN - 2468-824X. IS - 3. ER - ...
Fingerprint Dive into the research topics of Unexpected blood clot-induced acute airway obstruction in a patient with inactive pulmonary tuberculosis during lumbar spine surgery in the prone position - A case report. Together they form a unique fingerprint. ...
Acute airway obstruction (AAO) after anterior cervical fusion (ACF) can be caused by postoperative retropharyngeal hematoma, which requires urgent recognition and treatment. However, the causes, evaluation, and appropriate treatment of this complication are not clearly defined. The purpose of this retrospective review of a prospective database was to investigate etiologic factors related to the development of AAO due to postoperative hematoma after ACF and formulate appropriate prevention and treatment guidelines. Cervical spinal cases treated at our academic institutions from 1998 to 2013 were evaluated. Demographic data, including factors related to hemorrhagic tendency, and operative data were analyzed. Patients who developed a hematoma were compared with those who did not to identify risk factors. Cases complicated by hematoma were reviewed, and times until development of hematoma and surgical evacuation were determined. Degrees of airway compromise and patient behavior were classified and evaluated
TY - JOUR. T1 - Small airways obstruction syndrome in clinical practice. AU - Chen, Chiung Zuei. AU - Lin, Chien Chung. AU - Lee, Cheng Hung. AU - Chang, Han Yu. AU - Hsiue, Tzuen Ren. PY - 2009/4/1. Y1 - 2009/4/1. N2 - Background and objective: Small airways obstruction syndrome (SAOS) is a particular pulmonary function test (PFT) pattern showing decreased VC and FEV1 but a normal FEV1/VC ratio and TLC. The significance of this syndrome in clinical practice has not been comprehensively investigated. Methods: This study retrospectively identified all patients who had performed PFT that showed a SAOS pattern at a university teaching hospital over 1 year. A simple algorithm for differential diagnosis was developed and validated. Results: Of the 3207 PFT performed, 153 (4.8%) showed a pattern indicating SAOS. Among these, a final diagnosis was confirmed for 85 (63.4%) of the patients. The causes of SAOS included both restrictive and obstructive lung diseases with the leading causes being early ...
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This analysis was conducted to evaluate the prevalence of airway obstruction among Latino poultry processing workers. Data were collected from 279 poultry processing workers and 222 other manual laborers via spirometry and interviewer-administered questionnaires. Participants employed in poultry processing reported the activities they perform at work. Participants with forced expiratory volume in 1 second (FEV1) or FEV1/forced expiratory volume (FVC) below the lower limits of normal were categorized as having airway obstruction. Airway obstruction was identified in 13% of poultry processing workers and 12% of the comparison population. Among poultry processing workers, the highest prevalence of airway obstruction (21%) occurred among workers deboning chickens (prevalence ratio: 1.75; 95% confidence interval: 0.97, 3.15). These findings identify variations in the prevalence of airway obstruction across categories of work activities ...
PAN Czytelnia Czasopism, Evaluation of serum cytokine levels in recurrent airway obstruction - Polish Journal of Veterinary Sciences
TY - JOUR. T1 - Altered cardio-respiratory response to spontaneous cortical arousals in children with upper airway obstruction. AU - Baumert, Mathias. AU - Kohler, Mark. AU - Kabir, Muammar. AU - Sanders, Prashanthan. AU - Kennedy, Declan. AU - Martin, James. AU - Pamula, Yvonne. PY - 2011/3/1. Y1 - 2011/3/1. N2 - Objective: Upper airway obstruction (UAO) during childhood is associated with cardiovascular morbidity. The aim of this study was to investigate the cardio-respiratory response to cortical arousal during sleep in children with UAO. Methods: Standard paediatric overnight polysomnography (PSG) was conducted in 40 children with UAO (25. M, 7.5 ± 2.7. yrs) prior to and 6 months following adenotonsillectomy. For comparison a control group of 40 normal, sex and age matched children (21. M, 7.5 ± 2.6. yrs) underwent two PSGs without intervention at the same time points. Results: Heart rate and respiratory rate were measured during spontaneous and respiratory arousals in stage 2 and REM ...
Central airway obstruction (CAO) may present in a wide variety of ways, and patients are frequently misdiagnosed with asthma or chronic obstructive pulmonary disease. A high degree of suspicion is necessary to ascertain the diagnosis. The approach to the patient should be expeditious but with par...
TY - JOUR. T1 - Forced expiration and HeO2 response in canine peripheral airway obstruction. AU - Jadue, C.. AU - Greville, H.. AU - Coalson, J. J.. AU - Mink, S. N.. PY - 1985. Y1 - 1985. N2 - We examined the effect of peripheral airway obstruction on parameters of maximum expiratory flow (Vmax) in a canine model of bronchiolitis obliterans (B). B was produced by the repeated intrabronchial instillations of a 1% nitric acid solution in seven dogs (group B). In seven control dogs (group C), a normal saline solution was used. During forced vital capacity deflation, Vmax on air, the relative increase in Vmax on 80% He-20% O2 (ΔVmax), and airway sites of flow limitation choke points (CP) were determined at multiple lung volumes (VL). The findings were interpreted in terms of the wave-speed theory of flow limitation. Wave-speed parameters were identified with a pressure-measuring device positioned in the airway. Compared with the findings for group C, Vmax decreased substantially at the lower VL ...
TY - JOUR. T1 - Imaging of Airway Obstruction in Children. AU - Roebuck, Derek J.. AU - Murray, Conor. AU - McLaren, Clare A.. PY - 2020/11/11. Y1 - 2020/11/11. N2 - Various imaging techniques may be used to diagnose airway obstruction in children. Digital radiography, computed tomography and magnetic resonance imaging are the most important modalities, but the choice of technique will depend on the level and nature of suspected obstruction, as well as patient-specific factors such as age and ability to cooperate. This review examines the forms of airway obstruction that are commonly encountered in childhood.. AB - Various imaging techniques may be used to diagnose airway obstruction in children. Digital radiography, computed tomography and magnetic resonance imaging are the most important modalities, but the choice of technique will depend on the level and nature of suspected obstruction, as well as patient-specific factors such as age and ability to cooperate. This review examines the forms of ...
ASTHMATICS:. Patients will be between 18 and 75 years of age, male or female.. The diagnosis of asthma requires a history of intermittent, reversible expiratory flow limitation.. In addition, patients will have demonstrated evidence of either an abnormal methacholine challenge or reversible airway obstruction. An abnormal methacholine challenge will be defined as a decrease in FEV(1) of at least 20% at a PD(20) dose less than 240 micrograms. Reversible airway obstruction will be defined as an improvement of at least 12% and 200 cc in either the FEV(1) or FVC folowing bronchodilator treatment. Methacholine challenge testing will not be performed if the subject has a history of allergy to methoacholine. Result of testing performed by the subjects primary care provider may be accepted as evidence of reversible airflow obstruction.. For women of childbearing potential, negative pregnancy test prior to study and willingness to adhere to reliable birth control methods during the study.. EXCLUSION ...
INTRODUCTION: Airway disease in PSS is reported to be frequent but its severity and clinical relevance remain unclear. We aimed to assess airway obstruction as defined by pulmonary function test (PFT) in patients with PSS.. METHOD: Among 502 patients followed in a reference center for PSS, 81 (78 females) non smokers who underwent PFTs from 1990 to 2012 were retrospectively evaluated. Airway obstruction (AO) was defined by either FEV1/FVC ,70% of predicted (patent obstruction) or MEF25-75 ,50% of predicted (small airway obstruction) or elevated RV/TLC associated with functional residual capacity ,120% of predicted (hyperinflation). Clinical and chest CT scan characteristics of patients with airway obstruction were compared with normal PFT patients.. RESULTS: Mean age at PSS diagnosis was 53,1 year. Mean disease duration at study was 5.3 year. 73 (90%) patients had respiratory symptoms. 26 patients (32%) had an airway obstruction: 10% a patent obstruction, 15% a small airway obstruction and 7% an ...
If variation in ventilatory drive, both endowed and acquired, determines the extent and quality of adaptation to the hypoxia of high altitude, such variation might also contribute to the variable clinical profile of patients with hypoxic disease at low altitude, such as chronic obstructive pulmonary disease. It has long been known that such patients present a varied clinical picture illustrated by patients presenting at the extreme edges of the spectrum-the pink puffer and blue bloater. More common is the broad range of PaC02 observed with a given degree of severe airway obstruction, indicating that the ventilatory adaptation to severe airway obstruction is quite variable. The presence of intense dyspnea in the eucapnic pink puffer and its absence in the hypercapnic blue bloater have suggested the terms fighter and nonfighter, reflecting possible underlying differences in ventilatory drive. Indeed, early studies indicated decreased ventilatory responsiveness to hypercapnia in patients with ...
The most common cause of airway obstruction in the anesthesia setting is iatrogenic, i.e. occurs with induction of general anesthesia/ sedation, when a reduced level of consciousness and loss of pharyngeal muscle tone leads to the back of the tongue falling backwards against the posterior pharyngeal wall in the patient positioned supine. Other conditions causing a reduced level of consciousness (intoxication, stroke, head injury, ...) can lead to airway obstruction for the same reason.. (Partial) upper airway obstruction due to the same mechanism can occur during sleep causing snoring and as a consequence of obstructive sleep apnea.. The potential types of obstacles to gas flow through the airway are blood, pus, secretions, edema and hematoma, either within the airway or external to the airway but compressing it, tumor or other tissue, a foreign body, regurgitated material or the vocal chords in cases of paralysis.. ...
The importance of SaO2 in the assessment of respiratory distress in bronchial asthma has been reported. Objectives: To evaluate the correlation between blood gas analysis and chest X-ray lung opacities in young children presenting with acute respiratory symptoms. Methods: Eighty patients (43 males and 37 females aged 0.5-24 months; mean B SD 9.1 B 7.2 months), either with acute wheezing respiratory symptoms and/or with crackles were enrolled in our study. In all children, blood gas analysis and chest X-rays were performed within 12 h following admission to the emergency department. Results: In 55 children (68.75%) chest X-rays demonstrated lung opacities. Subjects with normal X-rays had paO2 and SaO2 higher than subjects with lung opacities (p ! 0.0001 and p = 0.0001, respectively). Children with lung opacities almost always presented paO2 !80 mm Hg. Sensitivity and specificity for the presence of lung opacities of paO2 !80 mm Hg were 81 and 90%, respectively, while sensitivity and specificity ...
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Laryngeal cysts are cysts involving the larynx or more frequently supraglottic locations, such as epiglottis and vallecula. Usually they do not extend to the thyroid cartilage. They may be present congenitally or may develop eventually due to degenerative cause. They often interfere with phonation. Hoarseness is the most common presenting symptom, while pain, stridor or laryngeal obstruction are unusual complaints. They may cause significant respiratory obstruction leading to dyspnoea or respiratory distress and even cyanosis, and jugular and epigastric retractions. Congenital lesions may present with severe airway obstruction at birth calling for emergency intervention and intubation. There are three types of laryngeal cysts, namely, mucous, hemorrhagic and congenital. However, a new classification system for congenital laryngeal cysts on the basis of the extent of the cyst and the embryologic tissue of origin, is proposed for the ease of initial surgical management. Treatment can be medical or ...
A new oral bronchodilator, clenbuterol, was compared with terbutaline during a 5-week single-blind crossover study in 16 patients with chronic airways obstruction and with cough and sputum production. After a run-in period (1 week), the study was performed in two separated 2-week periods (Phase II a …
TY - JOUR. T1 - New acoustic method for detecting upper airway obstruction in patients with sleep apnoea. AU - Stockx, Elaine Maria. AU - Camilleri, Peter. AU - Skuza, Elizabeth Michalina. AU - Churchward, Thomas. AU - Howes, Julia. AU - Ho, Michael. AU - McDonald, Timothy. AU - Freezer, Nick. AU - Hamilton, Garun Stuart. AU - Wilkinson, Malcolm Howard. AU - Berger, Philip John. PY - 2010. Y1 - 2010. N2 - This article investigates a new acoustic device to assess the behaviour of the upper airway in patients with OSA. Currently there is no simple non-invasive method to perform such measurements. As such this paper describes the device in probing the patency of the airway during sleep and increasing the efficiency of diagnosing OSA. BACKGROUND AND OBJECTIVE: OSA is a common disorder resulting in health and economic burdens. Currently identifying OSA in patients involves expensive techniques that require overnight studies in a laboratory setting with qualified staff. This paper tests a new acoustic ...
Pneumoniae infection in adults with new-onset asthma indicate that untreated chlamydial infections may have a part in the transition from the acute inflammation of bronchitis to the long-term inflammatory changes of asthma. Patients with acute bronchitis have a viral respiratory infection with transient inflammatory changes that produce sputum and symptoms of airway obstruction. Evidence of reversible airway obstruction even when not infected Symptoms worse during the work but tend to improve during weekends, holidays and vacations Persistent cough with sputum production on a daily basis for at least three months Upper airway inflammation and no signs of bronchial wheezing Evidence of infiltrate on the chest radiograph Evidence of increased interstitial or alveolar fluid on the chest radiograph Typically related to a precipitating event, such as smoke inhalation Signs of reversible airway obstruction even when not infected Symptoms worse during the work week but tend to improve during weekends, ...
Pneumoniae infection in adults with new-onset asthma imply that untreated chlamydial infections may have a part in the transition from the acute inflammation of bronchitis to the chronic inflammatory changes of asthma. Patients with acute bronchitis usually have a viral respiratory infection with ephemeral inflammatory changes that create sputum and symptoms of airway obstruction. Evidence of reversible airway obstruction when not infected Symptoms worse during the work but tend to improve during weekends, holidays and vacations Chronic cough with sputum production on a daily basis for a minimum of three months Upper airway inflammation and no signs of bronchial wheezing Evidence of infiltrate on the chest radiograph Evidence of increased interstitial or alveolar fluid on the chest radiograph Usually related to a precipitating event, such as smoke inhalation Signs of reversible airway obstruction even when not infected Symptoms worse during the work week but tend to improve during weekends, ...
A sleep apnea syndrome due to upper airway obstruction was diagnosed in 25 adult men (25 to 65 years of age) using nocturnal polygraphic monitoring. Excessive d
Results The preterm group had substantial impairments in airflow at both ages compared with controls (eg, mean differences in z-score for FEV1; 8 years −1.02, 95% CI −1.21 to −0.82; 18 years −0.92, 95% CI −1.14 to −0.71). The preterm group had a greater increase in small airway obstruction between 8 and 18 years compared with controls. Within the preterm group, those who had bronchopulmonary dysplasia in the newborn period and those who were smokers at 18 years had airway obstruction that increased over time compared with those who did not. ...
This topic will review an emergency diagnostic and therapeutic approach to acute upper airway obstruction in children. The emergent evaluation of children with acute respiratory distress and airway management techniques for the difficult pediatric ai
At resting levels of ventilation, the main airway can be reduced to a diameter of 3 mm or so before respiratory distress and stridor occur. Little more narrowing is required to precipitate complete asphyxia, hence when upper airways obstruction is suspected, assessment of severity, diagnosis, and treatment is a medical emergency....
In this VETgirl blog, we demonstrate how to use a modified Seldinger technique to place a larger endotracheal tube in a dog w/ an upper airway obstruction.
TY - JOUR. T1 - Upper airway obstruction and the pharyngeal lymphoid tissue. AU - Yonkers, A. J.. AU - Spaur, R. C.. PY - 1987/1/1. Y1 - 1987/1/1. UR - http://www.scopus.com/inward/record.url?scp=0023259751&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=0023259751&partnerID=8YFLogxK. M3 - Review article. C2 - 3299207. AN - SCOPUS:0023259751. VL - 20. SP - 235. EP - 239. JO - Otolaryngologic Clinics of North America. JF - Otolaryngologic Clinics of North America. SN - 0030-6665. IS - 2. ER - ...
TY - JOUR. T1 - Upper Airway Obstruction Caused by Ingestion of Concentrated Acetic acid. AU - Shimizu, Kazuyoshi. PY - 2006. Y1 - 2006. M3 - Article. VL - 34. SP - 379. EP - 381. JO - Anaesthesia and Intensive Care. JF - Anaesthesia and Intensive Care. IS - 3. ER - ...
TY - JOUR. T1 - Psychogenic upper airway obstruction presenting as refractory wheezing. AU - Barnes, Steve D.. AU - Grob, Charles S.. AU - Lachman, Barry S.. AU - Marsh, Bernard R.. AU - Loughlin, Gerald M.. PY - 1986/12. Y1 - 1986/12. UR - http://www.scopus.com/inward/record.url?scp=0022977580&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=0022977580&partnerID=8YFLogxK. U2 - 10.1016/S0022-3476(86)80302-X. DO - 10.1016/S0022-3476(86)80302-X. M3 - Article. C2 - 3783333. AN - SCOPUS:0022977580. VL - 109. SP - 1067. EP - 1070. JO - Journal of Pediatrics. JF - Journal of Pediatrics. SN - 0022-3476. IS - 6. ER - ...
TY - JOUR. T1 - Outcome of laryngeal web resection with mucosal apposition for treatment of airway obstruction in dogs. T2 - 15 cases (1992-2006). AU - Mehl, Margo L.. AU - Kyle, Andrew E.. AU - Pypendop, Bruno H. AU - Filipowicz, Dean E.. AU - Gregory, Clare R.. PY - 2008/9/1. Y1 - 2008/9/1. N2 - Objective - To evaluate long-term clinical outcome in dogs with upper airway obstruction treated with laryngeal web resection and mucosal apposition. Design - Retrospective case series. Animals - 15 client-owned dogs with laryngeal web formation. Procedures - Medical records of dogs with laryngeal webs treated with a single procedure of web resection with mucosal apposition by use of a ventral laryngotomy were reviewed. Signalment, history, clinical signs, intraoperative complications, postoperative complications, and hospitalization time were recorded. Owners were interviewed 6 months to 6 years after surgery. Results - Most dogs had a history of oral ventriculocordectomy. Duration of clinical signs ...
Thermoplasty: A newly FDA-approved treatment for patients with moderately severe to severe asthma has met with initial success. This treatment targets reducing airway obstruction in asthma patients due to bronchial muscle hypertrophy. A cardinal feature of asthma is hypertrophy or thickening of the bronchial smooth muscle. At times, the bronchial smooth muscle wall is so thick that it results in persistent and severe narrowing of the bronchial passageway, thus limiting airflow. Patients not responding to conventional therapy who have persistent, severe airway obstruction might be candidates for this new form of treatment. Patients undergo bronchoscopy, in which heat is applied to the local bronchial smooth muscle, resulting in a shrinking or diminution in the bronchial smooth muscle mass, and thus, increasing the airway lumen diameter, resulting in decreased airway obstruction. This is a new technique which is invasive and associated with a potential for adverse events. ...
Thermoplasty: A newly FDA-approved treatment for patients with moderately severe to severe asthma has met with initial success. This treatment targets reducing airway obstruction in asthma patients due to bronchial muscle hypertrophy. A cardinal feature of asthma is hypertrophy or thickening of the bronchial smooth muscle. At times, the bronchial smooth muscle wall is so thick that it results in persistent and severe narrowing of the bronchial passageway, thus limiting airflow. Patients not responding to conventional therapy who have persistent, severe airway obstruction might be candidates for this new form of treatment. Patients undergo bronchoscopy, in which heat is applied to the local bronchial smooth muscle, resulting in a shrinking or diminution in the bronchial smooth muscle mass, and thus, increasing the airway lumen diameter, resulting in decreased airway obstruction. This is a new technique which is invasive and associated with a potential for adverse events. ...
Background Airway calibers are related to changes in Fractional exhaled nitric oxide (FeNO) in asthma; however, this effect is not well understood especially during spontaneous airway obstruction.. Objective The aim of this study was to evaluate whether FeNO levels could be masked by airway obstruction in patients wit asthma and COPD.. Methods FeNO and spirometry measurements were performed before and after albuterol inhalation in 20 steroid-naive asthmatics with moderate to severe airway obstruction. For comparison, 15 normal subjects, 16 asthmatics using inhaled corticosteroids/ long-acting β(2)-adrenoceptor agonist(ICS/LABA combination) and another group of patients with COPD were also studied. All the patients with asthma and COPD recruited had positive bronchodilator test (BDT).. Results FeNO(median [25th-75th percentiles]) increased significantly after albuterol inhalation in steroid-naive asthmatics 61.50[40.50-85.00]vs.80.00[53.00-108.00], P=0.000) but not in treated asthmatics ...
Background. This study sets out to estimate the prevalence and the degree of severity of bronchial obstruction in an adult population with three different diagnostic criteria: the European Respiratory Society (ERS), the American Thoracic Society (ATS), and the World Health Organization (WHO) defined as Global Obstructive Lung Disease (GOLD). Methods. 1514 subjects underwent complete medical evaluation and spirometry. Results. The prevalence of bronchial obstruction was respectively 27.5% (ERS), 33% (GOLD), and 47.3% (ATS). The prevalence of bronchial obstruction in the smoker group was 33.4% (ERS), 38.1% (GOLD), and 52.3% (ATS). The prevalence of obstruction in the ex-smoker group was 33% (ERS), 41.4% (GOLD), and 57.1% (ATS). The prevalence of obstruction in the non-smoker group was 21.1% (ERS), 24.9% (GOLD), and 38.6% (ATS). Conclusions. The results show that the prevalence of airway obstruction increases proportionally with age; the cigarette smoking represents an important conditioning ...
Rationale: Asthma is a serious health problem with increasing prevalence in the world. It is a chronic disease which is characterized by episodes of reversible airway obstruction due to underlying chronic airway inflammation and airway hyperresponsiveness to different bronchial stimuli. Evidence indicates that reduced physical activity may be associated with the severity of asthma and the increasing asthma prevalence (Rusmussen F et al. ERJ). Several studies have shown that physical activity improves asthma control and the quality of life of asthma patients. However, physical training does not lead to improved lung function. Obesity, is another important factor that increases the risk of asthma and is related to the severity of asthma. Compared to normal, lean asthma patients, obese asthma patients have more missed school days per year, a lower peak flow, a higher need of inhalation medication and less often acceptable asthma control. The relationship with atopy, allergic rhinitis and bronchial ...
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Congenital High Airway Obstruction Syndrome (CHAOS) is a syndrome in which there is blockage of the upper airway of the fetus during pregnancy. The human airway has several components that start with the mouth, windpipe (trachea), and voice box (larynx).
TY - JOUR. T1 - Periodontitis and Airway Obstruction. AU - Katancik, J.A.. AU - Kritchevsky, S.. AU - Weyant, R.J.. AU - Corby, P.. AU - Bretz, W.. AU - Crapo, R.O.. AU - Jensen, R.. AU - Waterer, Grant. AU - Rubin, S.M.. AU - Newman, A.B.. PY - 2005. Y1 - 2005. N2 - Background: The objective of this study was to examine the relationship between airway obstruction and periodontal disease.Methods: Participants were a subset of 860 community-dwelling, well functioning elderly (aged 70 to 79, blacks and whites, males and females) selected from 2,732 participants enrolled in the Health, Aging, and Body Composition Study (Health ABC). The periodontal evaluations occurred over years 2 and 3 of the study and included four indices of periodontal health: plaque index (PI), gingival index (GI), probing depth (PD), and loss of attachment (LOA). The pulmonary evaluation took place in year 1: conducted according to American Thoracic Society criteria, based on the forced expiratory volume/forced vital ...
List of disease causes of Congenital oropharyngeal causes of airway obstruction, patient stories, diagnostic guides. Diagnostic checklist, medical tests, doctor questions, and related signs or symptoms for Congenital oropharyngeal causes of airway obstruction.
This series highlights the potential for late presentation of upper airway obstruction in the Pierre Robin sequence. Of 10 patients with upper airway obstruction, seven (70%) presented between days 24 and 51. All infants had been seen by an experienced neonatologist or general paediatrician, and were not thought to have clinically significant upper airway obstruction. These results suggest that either significant upper airway obstruction is not being detected clinically by experienced neonatal or paediatric staff, or that obstruction is developing gradually in these infants.. While most reported series of infants with Pierre Robin sequence have not specifically stated the age at presentation of airway obstruction, the classical view has been that, if present, airway obstruction will be apparent from birth. This view is supported by the series of Benjamin and Walker.7 In this series 24 of 26 patients with Pierre Robin sequence had symptoms of obstruction apparent before 12 hours of age. The ...
OBJECTIVES: Objectives of the study were to determine the effectiveness of distraction osteogenesis of the mandible to relieve airway obstruction in children with tongue-base airway obstruction and to describe the new surgical techniques developed for use in infants and young children.. STUDY DESIGN: Prospective, nonrandomized study.. METHODS: Analysis of 11 children with severe airway obstruction secondary to tongue-base obstruction was performed. Patients were between 2 weeks and 5.5 years of age. All patients underwent distraction osteogenesis of the mandible.. RESULTS: Twelve distraction procedures in the 11 children in the study were accomplished; decannulation or extubation was successful in all children.. CONCLUSION: Distraction osteogenesis of the mandible can be used to treat tongue-base airway obstruction in appropriately selected children. ...
TY - JOUR. T1 - Conversion from twice-to once-daily extended-release theophylline treatment in patients with reversible airway obstruction. AU - Berkowitz, Robert B.. AU - Tinkelman, David G.. AU - Marcoux, J. Paul. AU - Rooklin, Anthony R.. AU - Zeitz, Howard J.. AU - Rennard, Stephen I.. AU - Moss, Burton A.. AU - Hubbard, Richard C.. AU - Lorber, Richard R.. PY - 1995/1/1. Y1 - 1995/1/1. N2 - This multicenter, randomized, investigator-blinded, parallel group study compared the effects of converting patients from a q12h extended-release theophylline preparation (Theo-Dur® to a q24h extended-release product (Uni-Dur® Patients (n = 133) first received open-label Theo-Dur treatment with dosage titrated to achieve peak serum theophylline concentrations of 10-20 μg/ml. Patients then were randomized to continue Theo-Dur (n = 64) or to convert to Uni-Dur (n = 60) with peak serum theophylline concentrations maintained in the desired range. Pulmonary function tests were performed during the ...
TY - JOUR. T1 - Airway obstruction after autologous reimplantation of the porcine lobe. AU - McGahren, E. D.. AU - Teague, W. G.. AU - Flanagan, T. L.. AU - White, B. J.. AU - Barone, G. W.. AU - Johnson, A. M.. AU - Kron, I. L.. PY - 1989/1/1. Y1 - 1989/1/1. N2 - Bronchiolitis obliterans (irreversible small airway obstruction) is a late complication of heart-lung transplantation. Chronic immune rejection is believed to be the major cause of this complication. Our hypothesis was that denervation might contribute to airway obstruction. To test this hypothesis in the absence of immune rejection, we performed a lobectomy of the upper lobe of the left lung and autologous reimplantation of the lower lobe of the left lung in 13 growing pigs. To serve as age-matched controls, six other pigs had sham left thoracotomy and nine others had a lobectomy of the upper lobe of the left lung alone. Nine to 10 weeks after operation, the animals were anesthetized and the lungs mechanically ventilated. The lobes ...
Background: Upper airway compromise due to tracheobronchial stenosis commonly occurs in patients with Wegeners granulomatosis (WG). There is at present no consensus on the optimal management of this life threatening condition. Objective: To assess the results of laryngo-tracheobronchoscopy, intralesional steroid therapy, laser surgery and dilatation in managing obstructive tracheobronchial WG. Methods: Records of 18 previously untreated stridulous patients with obstructive tracheobronchial WG, treated between 2004 and 2006, were prospectively recorded on an airway database and retrospectively reviewed. Information about patient and lesion characteristics and treatment details were recorded. Treatment progress was illustrated using a timeline plot, and intervention-free intervals were calculated with actuarial analysis. Results: There were nine males and the average age at presentation was 40 (16) years (range 13-74). There were 13 patients with tracheal and five with tracheal and bronchial ...
Laryngeal cancer is relatively uncommon, encompassing around 1% of all cancers. Of these, squamous cell carcinoma accounts for the majority, with a high male:female perponderance (5:1)1. Chondrosarcoma accounts for around one percent2. It usually presents with classic signs and symptoms of a laryngeal tumour; ie dysphonia, inspiratory stridor, dysphagia, odynophagia, neck mass, or persistent cough3. It is usually a slow growing tumour and therefore rarely presents with acute airway obstruction. It is most commonly centred on the cricoid cartilage (70 - 75%), however it can also arise from the thyroid cartilage, epiglottis and arytenoids in descending order of incidence4.. Symptoms depend on the location. Subglottic and endolaryngeal tumours will generally cause dyspnoea. Extralaryngeal tumours may compress the oesophagus resulting in dysphagia5. In our case the patient presented with inspiratory stridor and mild dysphonia, due to its location originating outside of the larynx, ultimately ...
Congenital high airway obstruction syndrome (CHAOS) is a prenatally diagnosed clinical syndrome manifested by the presence of extremely large echogenic lungs, flattened or inverted diaphragms, a dilated tracheobronchial tree, ascites, and other manifestations of nonimmune hydrops due to complete obstruction of the fetal airway (Hedrick et al., 1994). No fetus diagnosed prenatally with CHAOS associated with hydrops and complete airway obstruction has survived without intervention. The exception to this occurs when there is spontaneous perforation of the laryngeal or tracheal atresia, which may occur in up to one-third of cases and results in resolution of the hydrops. ...
Upper Airway Obstruction Requiring Emergent Tracheostomy Secondary to Laryngeal Sarcoidosis: A Case Report - Get your full text copy in PDF #902231
Nasal airway obstruction, a well-known cause of patient discomfort, is one of the most common presenting complaints to the otolaryngologist. The different causes of nasal airway obstruction are very wide-ranging, spanning from congenital life threatening causes to acquired benign causes. Herein, we present a case of nasal obstruction caused by widening of the posterior septum. A 52-year-old gentleman presented to the rhinology clinic with complaint of chronic nasal congestion for 4 years. Trials of topical steroid sprays and nasal saline rinses had been unsuccessful in symptoma- tic resolution. On anterior rhinoscopy, the septum was noted to be straight anteriorly, but appeared to be deviated bilaterally, flaring into the nasopharynx and obstructing the airway. A CT scan was performed, which showed soft tissue enlargement on the posterior aspect of the septum. The patient was subsequently taken to the operating room for a posterior septectomy and inferior turbinectomy. He reported alleviation of
TY - JOUR. T1 - Herpes simplex laryngitis presenting as airway obstruction in a stroke patient. AU - Pradeep, Tejus. AU - Bhoite, Rahul. AU - Rooper, Lisa. AU - Zhang, Jiaying. PY - 2018/1/1. Y1 - 2018/1/1. N2 - We present the second confirmed report of HSV laryngitis in an adult stroke patient, resulting in complicated airway management issues. This rare presentation of laryngeal HSV in a stroke patient can interfere with speech, language, and swallowing functions and confounds the etiology of these issues, which can impact subsequent management.. AB - We present the second confirmed report of HSV laryngitis in an adult stroke patient, resulting in complicated airway management issues. This rare presentation of laryngeal HSV in a stroke patient can interfere with speech, language, and swallowing functions and confounds the etiology of these issues, which can impact subsequent management.. KW - Airway obstruction. KW - Cerebrovascular accident. KW - Herpes simplex virus. KW - Laryngitis. KW - ...
Airway obstruction caused by pharyngolaryngeal swelling after intraoral removal of a submandibular gland stone Satomi Sugiyama, Toshinori Iwai, Nobuhide Ohashi, Senri Oguri, Makoto Hirota, Kenji Mitsudo Department of Oral and Maxillofacial Surgery/Orthodontics, Yokohama City University Hospital, Yokohama, Japan Abstract: Intraoral removal of a submandibular gland stone is less invasive than submandibulectomy, with no life-threatening airway complications reported until now. We report a case involving airway obstruction caused by pharyngolaryngeal swelling after intraoral removal of a submandibular gland stone. A 31-year-old man with a left submandibular gland stone underwent intraoral removal of the stone under general anesthesia and was discharged 1 day after surgery. That night, he was transported back to our hospital by ambulance for dyspnea. Because computed tomography showed pharyngolaryngeal swelling, he was intubated and managed by a ventilator. Four days later, the pharyngolaryngeal swelling
Studies were made on 56 10-11-year-old asthmatic children with onset of symptoms before 3 years of age, frequent and persistent attacks, and objective evidence of their disease with barrel chest deformity and/or reduction of the FEV 0·5/VC ratio to 50% or less, by clinical, physiological, and radiological techniques in an interval phase between their attacks.. There was a significant correlation between barrel chest deformity and (a) elevation of lung volumes (FRC, RV, TLC, FRC/TLC, and RV/TLC), and (b) reduction of the FEV1·0/VC ratio, indicating chronic hyperinflation and airways obstruction in the interval phase between attacks.. Radiological evidence of hyperinflation also correlated significantly with barrel chest deformity, increased lung volumes, and airways obstruction. These parameters were found to be important criteria for assessing chronicity in asthma.. The group showed evidence of growth retardation particularly for weight and to a lesser extent for height, these changes being ...
Upper airway obstruction (UAO) is an unpredictable and frequently occurring complication during induction of general anesthesia. Since obese patients ( BMI,30 km/ m2) are more vulnerable to develop airway obstruction either during sleep or under anesthesia, and the segment of obese individuals in the entire population keep growing, difficult airway management under anesthesia becomes even more challenging than ever. The most serious event related to difficult airway management under anesthesia is cannot intubate, cannot ventilate. Unfortunately, even with modern technologic advances, 16% of death and permanent brain damage related to anesthesia have been attributed to failure of difficult airway management 3. The American Society of Anesthesiologist (ASA) closed claim analysis of anesthesia complications indicate that a difficult airway is one of the most challenging scenarios continuously facing anesthesia providers. Indeed, it can be a fatal complication of general anesthesia. Therefore, ...
List of disease causes of Benign tracheal neoplasms causing airway obstruction, patient stories, diagnostic guides. Diagnostic checklist, medical tests, doctor questions, and related signs or symptoms for Benign tracheal neoplasms causing airway obstruction.
RAO, formerly known as COPD or Heaves, is often caused by allergies to molds & pollens, and usually can be managed by a dust-free diet and medication.
Gustducin is a guanosine nucleotide-binding proteins functionally coupled with taste receptors and thus originally identified in taste cells of the tongue. tongue sections with the same rabbit gustducin antibody. Whereas bad staining was confirmed in the tongue, rigorous materials were constantly stained in the brain. Moreover, immunostaining having a goat gustducin antibody could not demonstrate the materials in the brain tissue. The present study indicates a cross immunoreaction that occurs with the rabbit gustducin antibody in mouse mind samples, suggesting that the conventional bad settings may not be adequate when an immunostaining pattern is to be verified. Keywords: taste bud, immunohistochemistry, peptide neutralization, axonal terminal, polyclonal antibody Intro The guanosine nucleotide-binding protein, gustducin (McLaughlin et al. 1992), was originally recognized in taste cells of the tongue (Wong et al. 1996; Wong et al. 1999), and offers consequently been functionally coupled with ...
The diagnosis of Multiple Myeloma is a challenge towards the physician because of the nonspecific symptoms (anemia, bone pain and recurrent infections) that are commonplace in older people population. two assays and attempts to clarify hypothetical restrictions of the full total assay to identify Multiple Myeloma. Furthermore, we complex on our research comparing both assays found in 11 Light String Multiple Myeloma sufferers at display and 103 sufferers used through the span of their disease. The purpose of this article is normally to provide an obvious discrimination between your two assays also to offer information to doctors and laboratory techs in order to make use of the International Myeloma Functioning Group suggestions. Keywords: Freelite?, Serum free of charge light string assay, Total light string assay, Multiple myeloma Launch Monoclonal Gammopathies (MGs) consist of premalignant Monoclonal Gammopathies of Uncertain Significance (MGUS), Smoldering/Indolent Multiple Myeloma and ...
Merck & Co., Inc., Kenilworth, NJ, USA is a global healthcare leader working to help the world be well. From developing new therapies that treat and prevent disease to helping people in need, we are committed to improving health and well-being around the world. The Merck Veterinary Manual was first published in 1955 as a service to the community. The legacy of this great resource continues as the Merck Veterinary Manual in the US and Canada and the MSD Manual outside of North America.. ...
The aim of the study is, primarily, evaluate the safety of the use of the silicone stent HCPA-1 in patients with clinically significant tracheal and/or
Purpose: Asthma is associated with reversible airway obstruction, leucocyte infiltration, airways hyperresponsiveness (AHR) and airways remodelling. Fluid accumulation causes pulmonary oedema contributing to airways obstruction. We examined the temporal relationship between the late asthmatic response (LAR) following allergen challenge of sensitised guinea-pigs and pulmonary oedema measured by magnetic resonance imaging (MRI). Materials and Methods: Ovalbumin (OVA) sensitised guinea-pigs received either a single OVA inhalation (acute) or nine OVA inhalations at 48 h intervals (chronic). Airways obstruction was measured as specific airways conductance (sGaw) by whole body plethysmography. AHR to inhaled histamine and bronchoalveolar lavage for leucocyte counts were measured 24 h after a single or the final chronic ovalbumin challenges. MRI was performed at intervals after OVA challenge and high intensity oedemic signals quantified. Results: Ovalbumin caused early bronchoconstriction, followed at ...
Pneumoniae infection in adults with new-onset asthma suggest that untreated chlamydial infections may have a part in the transition from the acute inflammation of bronchitis to the chronic inflammatory changes of asthma. Patients with acute bronchitis usually have a viral respiratory infection with passing inflammatory changes that create symptoms and sputum of airway obstruction. Signs of airway obstruction that is reversible when not infected Symptoms worse during the work but have a tendency to improve during vacations, holidays and weekends Chronic cough with sputum production on a daily basis for a minimum of three months Upper airway inflammation and no signs of bronchial wheezing Signs of infiltrate on the chest radiograph Signs of increased interstitial or alveolar fluid on the chest radiograph Usually related to a precipitating event, such as smoke inhalation Evidence of reversible airway obstruction even when not infected Symptoms worse during the work week but tend to improve during ...
Background Foreign body aspiration can result in a spectrum of presentations, from minimal symptoms, often unobserved, to respiratory compromise, failure, and even death. This article is not intended to distinguish in detail acute airway obstruction from foreign body aspiration; for these patients, emergency life-saving interventions are nee...
Discussion:. The smaller lumen of the airway makes it more susceptible to severe obstruction. Any triggering factor that induces laryngeal spasm can cause complete respiratory obstruction resulting in rapidly fatal outcome. Accidental inhalation and ingestion of a foreign body has been reported in the literature,4 but a fragment of denture hanging between the two cords is quite unusual. The signs and symptoms due to foreign body aspiration can be described in three stages. The patient presents with a history of a choking episode, along with paroxysms of gagging and coughing. There may be no difficulty in breathing or there may be an acute respiratory obstruction demanding immediate attention. Once the patient gets over with this phase, the second stage continues as an asymptomatic interval. If still not managed, then the third stage characterized by symptoms of complications sets in which is due to long-standing foreign body retention. These are related to either delayed diagnosis or missed ...
Background Differences in asthma severity may be related to inflammation in the airways. The lower airway microbiota has been associated with clinical features such as airway obstruction, symptom control, and response to corticosteroids. Objective To assess the relationship between local airway inflammation, severity of disease, and the lower airway microbiota in atopic asthmatics. Methods A cohort of young adult, atopic asthmatics with intermittent or mild/moderate persistent symptoms (n = 13) were assessed via bronchoscopy, lavage, and spirometry. These individuals were compared to age matched non-asthmatic controls (n = 6) and to themselves after six weeks of treatment with fluticasone propionate (FP). Inflammation of the airways was assessed via a cytokine and chemokine panel. Lower airway microbiota composition was determined by metagenomic shotgun sequencing. Results Unsupervised clustering of cytokines and chemokines prior to treatment with FP identified two asthmatic phenotypes (AP),
The upper airway evolved anatomically in humans to subserve several important functions including swallowing, breathing, and vocalization.1 The multifunctionality of the upper airway increases the risk of certain diseases (e.g., aspiration and sleep apnea).2 These functions require that different segments of the airway have differing properties. The trachea receives some support by the tracheal rings, the nasal airway is surrounded by rigid structures, and the oral airway has a rigid boney roof, the hard palate. On the other hand, the pharyngeal airway does not have rigid structures supporting it. It is a collapsible tube whose patency is maintained by muscles whose function is affected by arousal state (sleep/wake, and more specifically during sleep, the stage of sleep), the structures around it, and posture. Thus, the pharyngeal airway is divided anatomically and physiologically into the nasopharynx, retropalatal oropharynx, retroglossal oropharynx, and hypopharynx. ...
Certain tests may also be used to determine the cause of your airway obstruction. During an emergency, your doctor will likely order an X-ray first to determine the cause of your symptoms. If an X-ray fails to determine the cause of the obstruction, your doctor may choose to order more advanced testing. This may include a bronchoscopy. During this procedure, your doctor inserts an instrument called a bronchoscope through your mouth or nose to look into your lungs for any foreign bodies. Bronchoscopy can also help your doctor evaluate different causes of obstruction. This includes tracheomalacia, or weakness and collapse of the trachea. It also includes infectious causes, such as mucous plugging in patients with chronic lung conditions like emphysema and cystic fibrosis. Your doctor may also order a laryngoscopy. During this procedure, your doctor will examine your larynx with an instrument called a laryngoscope. Additional tests may include a CT scan of the head, neck, or chest to determine ...
In most cases this does not cause any problems, but in a small number of infants it can cause serious problems in the first few months of life. This is mostly due to the tongue moving back into the throat when the child breathes in, blocking the airway. This is known as upper airway obstruction, and can cause serious disruption to breathing and feeding. If your child has an upper airway obstruction, they will need to stay in hospital for a period of time so their breathing can be monitored and assessed. During this time, non-surgical methods of improving the airway obstruction will be tried, such as the insertion of a nasopharyngeal (nay-zo-far-an-jeel) tube (a tube down the nose that improves air flow to the breathing tubes and lungs).. In a very small number of cases, these non-surgical methods are not successful and a childs breathing problems become life threatening. In other instances, the non-surgical methods may be required for a very long time, and this can be very difficult to sustain. ...
We observed an oscillatory flow while ventilating critically ill patients with the Dräger Oxylog 3000™ transport ventilator during interhospital transfer. The phenomenon occurred in paediatric patients or in adult patients with severe airway obstruction ventilated in the pressure-regulated or pressure-controlled mode. As this had not been described previously, we conducted a bench study to investigate the phenomenon. An Oxylog 3000™ intensive care unit ventilator and a Dräger Medical Evita-4 NeoFlow™ intensive care unit ventilator were connected to a Dräger Medical LS800™ lung simulator. Data were registered by a Datex-S5™ Monitor with a D-fend™ flow and pressure sensor, and were analysed with a laptop using S5-Collect™ software. Clinical conditions were simulated using various ventilatory modes, using various ventilator settings, using different filters and endotracheal tubes, and by changing the resistance and compliance. Data were recorded for 258 combinations of patient factors and
This is the eighth of a series of articles on how to practise yoga, in consultation with Ayurvedic and Yoga Consultant Dr Pushpika Attanayake. This week the discussion continues from last week on benefits of yoga practice for asthma patients.. According to Dr Attanayake, the episodes of severe airway obstruction associated with asthma are caused by bronchial spasms. Panic at the time of the attack aggravates this situation. This situation could be averted if the patient is trained to remain calm and relaxed. As a consequence, the bronchial spasm would be reduced or released.. These yoga techniques use suggestive relaxation and helps relax the thoracic muscles, face and muscles of cervical region. It brings results through slow movements, yoga asana and Pranayama. Yoga breathing is known to be stamina-building. It also contributes to deep relaxation of different groups of muscles, lowering breath rate, calming the mind, bringing emotional well- being and a lifestyle of internal awareness and ...
Nasal airway obstruction and HomoeopathyIntroduction: Nasal obstruction is the commonest problem, frequently ignored during study and is an important sympto…
In line with previous findings in the literature, we showed that occupational exposure to VGDF was clearly associated with lower levels of FEV1 and FEV1/FVC as well as with a higher prevalence of airway obstruction in both our general populations investigated.8-11 ,17 ,18 Associations in our study were exposure dependent. In the European Community Respiratory Health Survey (ECRHS) study, high exposure to VGDF was associated with a 61 mL lower FEV1 in current smokers, whereas in our study we found a 96 mL lower FEV1 associated with high exposure to VGDF in ever smokers. Contrary to our findings, there was no association in never smokers from the ECRHS study.18 These differences might relate to the lower average age of the ECRHS population, which consisted mainly of young adults (range 20-44 years) compared with LifeLines (18-89 years). We found consistent associations with the subcategory gases and fumes in both cohorts. The association between exposure to mineral dust, lower level of FEV1 and ...
Lung and other types of cancer can sometimes cause malignant airway obstruction. However, interventional bronchoscopy techniques offer immediate benefit in many patients.
List of causes of Oropharyngeal and hypopharyngeal airway obstruction in newborns and Body symptoms, alternative diagnoses, rare causes, misdiagnoses, patient stories, and much more.
List of causes of Hand symptoms and Oropharyngeal and hypopharyngeal airway obstruction in newborns, alternative diagnoses, rare causes, misdiagnoses, patient stories, and much more.
Asthma (from ásthma panting) is the common chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm. Symptoms include wheezing, coughing, chest tightness, and shortness of breath. Asthma is clinically classified according to the frequency of symptoms, forced expiratory volume in 1 second, and peak expiratory flow rate. Asthma may also be classified as atopic or non-atopic. It is thought to be caused by a combination of genetic and environmental factors. Treatment of acute symptoms is usually with an inhaled short-acting beta-2 agonist. Symptoms can be prevented by avoiding triggers, such as allergens and irritants, and by inhaling corticosteroids. Leukotriene antagonists are less effective than corticosteroids and thus less preferred. Its diagnosis is usually made based on the pattern of symptoms and/or response to therapy over time. The prevalence of asthma has increased significantly since the 1970s. As of ...
Asthma (from the Greek άσθμα, ásthma, panting) is the common chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm. Symptoms include wheezing, coughing, chest tightness, and shortness of breath. Asthma is clinically classified according to the frequency of symptoms, forced expiratory volume in 1 second (FEV1), and peak expiratory flow rate. Asthma may also be classified as atopic (extrinsic) or non-atopic (intrinsic). In this section you can find medications for asthma treatment ...
TORRES-PALOMINO, Gregory; JUAREZ-DOMINGUEZ, Gabriela; GUERRERO-HERNANDEZ, Manuel y MENDEZ-SANCHEZ, Lucía. Airway obstruction due to cystic hygroma in a newborn. Bol. Med. Hosp. Infant. Mex. [online]. 2014, vol.71, n.4, pp.233-237. ISSN 1665-1146. http://dx.doi.org/10.1016/j.bmhimx.2014.07.001.. Background: Cystic hygroma is a diffuse dilatation of the lymphatic system, which can be prenatally diagnosed by ultrasound. The incidence is 1/6,000 live births and 1/750 spontaneous abortions. This malformation can occur at the cervical level located in the inferior lateral part of the neck where it appears with large single or multilocular cavities. It is generally caused by a lack of connection with jugular lymphatic channels or with the venous drainage system lymph sacs. Case report: In order to emphasize these diseases and non-surgical treatment options, we present a patient with a cervical cystic hygroma that compromises the airway and digestive tract due to tumor extension and treatment with pure ...
Dr Tim Chapman says: Asthma should, and can be well controlled to prevent flares of the condition. Flares of asthma are best managed sooner rather than later (and therefore reduce risk of needing oral steroid therapy or even hospital admission) with a long-term aim to prevent complications such as persistent airway obstruction (causing chronic breathlessness) or bronchiectasis (causing a chronic productive cough and increased risk of chest infections). Essentially good control allows a good quality of life with no or little limitation to what you can do. In order to achieve this a holistic approach to asthma management is needed. One aspect involves understanding if there is an allergic component to the asthma. Knowing this allows access to some newer therapies, as well as broadening the range of the tried and tested therapies that are available. This can be tested through simple skin prick testing to see what you are allergic to.. If there is no allergic component, there are still many ...
Ventipulmin Granules are used for the treatment of respiratory disease in horses where airway obstruction due to bronchospasm and/or accumulation of mucus is a
Allergen inhalation by atopic asthmatics in the laboratory results in most of the manifestations of asthma, including reversible airflow obstruction, AHR and airway inflammation. This methodology has been used to examine the mechanisms of eosinophil, T-cell, and dendritic cell trafficking to/from the bone marrow to/from the blood and to the airways. The current proposal will capitalize on the unique opportunity offered by this allergen-specific model of direct bronchial challenge, by using MHC class II allergen tetramer reagents to enrich and characterize, ex vivo, Fel d 1 epitope-specific T cells before and after a localized bronchial allergen challenge. The over arching hypothesis of this proposal is that trafficking of allergen-specific T cells (tetramer+) from the blood to the airways and bone marrow is associated with the development of the late asthmatic reaction. This study will measure the frequency of Fel d 1-specific T cells, how these cells traffic between relevant compartments ...
Hamad Medical Corporation (HMC) Qatar, has introduced our ventilator Evone in their daily clinical practice, being the first in the Middle East. We congratulate the anesthesiology team led by Prof. Dr. Marco Marcus with regional recognition of their fantastic.... ...
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Airway obstruction. Sedation can hinder the patient's gag reflex. Therefore, patients can find it difficult to remove a foreign ... In more serious cases of airway obstruction, up to 5 back blows and abdominal thrusts should be given while the patient is ... They include over-sedation, respiratory depression/apnoea, unconscious patient, airway obstruction, vomiting, idiosyncratic ... Inability to use a mask can either be due to anatomic and/or disease-induced nasopharyngeal obstructions, or due to ...
Airway obstructionEdit. Actual or impending airway obstruction is a common indication for intubation of the trachea. Life- ... Airway obstruction is also common in people who have suffered smoke inhalation or burns within or near the airway or ... and Sukhupragarn W, Management of the airway, pp. 751-92 *^ a b c d e Miller (2000), Stone DJ and Gal TJ, Airway management, pp ... threatening airway obstruction may occur when a foreign body becomes lodged in the airway; this is especially common in infants ...
"Airways obstruction from asbestos exposure. Effects of asbestosis and smoking". Chest. 106 (4): 1061-70. doi:10.1378/chest. ... Figure A shows the location of the lungs, airways, pleura, and diaphragm in the body. Figure B shows lungs with asbestos- ... Large airway function, as reflected by FEV1/FVC, is generally well preserved.[11] In severe cases, the drastic reduction in ...
Intrathoracic major airway obstruction produces inspiratory as well as expiratory sounds. Distal airway obstruction ... Wheezes occupy different portions of the respiratory cycle depending on the site of airway obstruction and its nature. The ... As a rule, extrathoracic airway obstruction produce inspiratory sounds. ... Stridor in the inspiratory phase is usually heard with obstruction in the upper airways, such as the trachea, epiglottis, or ...
"Brachycephalic Airway Obstruction Syndrome". Genetic Welfare Problems of Companion Animals. ufaw.org.uk: Universities ... In some cases, the dog could pass out from blocked airways. If this happens, one should inquire with their veterinarian whether ... Eye prolapse is a common problem among Pugs and other brachycephalic breeds (see brachycephalic airway obstructive syndrome) ...
Biller JA (2007). "Airway obstruction, bronchospasm, and cough". In Berger AM, Shuster JL, Von Roenn JH (eds.). Principles and ...
Epinephrine relieves airway swelling and obstruction, and improves blood circulation; blood vessels are tightened and heart ...
Airway obstruction is the most common complication. Implant migration or extrusion in cases where proper stitches are not taken ... in case of airway insufficiency after Laryngeal trauma). Type 3 thyroplasty - Shortening of the vocal folds (done to lower the ...
"Fourteen cases of imposed upper airway obstruction". Archives of Disease in Childhood. BMJ Publishing Group. 67 (2): 162-170. ...
Chou, Yu-Kung; Lee, Chao-Yi; Chao, Hai-Hsuan (December 2007). "An upper airway obstruction emergency: Ludwig angina". Pediatric ... Chou YK, Lee CY, Chao HH (December 2007). "An upper airway obstruction emergency: Ludwig angina". Pediatric Emergency Care. 23 ... Methods of airway management range from conservative airway management - consisting of close observation and intravenous ... secondary to obstruction of the airway, which is the most serious potential complication of this condition. Anticor Gottlieb, M ...
Airway obstruction is frequent, usually secondary to abnormal cervical vertebrae. Upper and lower respiratory tract infections ... Myer CM (July 1991). "Airway obstruction in Hurler's syndrome--radiographic features". International Journal of Pediatric ...
Airway obstruction: Obstruction may occur in the upper and lower airway. Upper airway obstruction is common in infants less ... Nasal blockage may easily lead to upper airway obstruction in infants. For other ages, upper airway obstruction may occur from ... A laryngeal mask airway can be positioned in the lower oropharynx to prevent airway obstruction by soft tissues and to create a ... In bilevel positive airway pressure, both expiratory positive airway pressure and inspiratory positive airway pressure are set ...
Hocking, G., Roberts, F.L., Thew, M.E. Airway obstruction with cricoids pressure and lateral tilt. Anesthesia (2001), 56; 825- ... Hartsilver, E. L., Vanner, R. G. Airway obstruction with cricoids pressure. Anesthesia (2000): 55: 208-211 ... and ligaments involved in opening and closing the airway and in speech production. ... and ligaments involved in opening and closing the airway and in producing speech. ...
"Brachycephalic Airway Obstruction Syndrome and the English Bulldog". Universities Federation for Animal Welfare. The ... They can be heavy breathers and tend to be loud snorers; another indicator of brachycephalic airway obstructive syndrome. In ... The English bulldog is among the breeds that are most severely affected by brachycephalic airway obstructive syndrome. Bulldogs ... Like all brachycephalic dogs, bully breeds often suffer from brachycephalic airway obstructive syndrome. The condition ...
Upper airway obstruction from tonsillar hypertrophy is rare. Fulminant disease course of immunocompromised people are rare. ... are not recommended for routine use but may be useful if there is a risk of airway obstruction, a very low platelet count, or ...
"Severe Hajdu-Cheney syndrome with upper airway obstruction". American Journal of Medical Genetics. 70 (3): 261-6. doi:10.1002/( ...
It is caused by partial obstruction of the upper airways, at the level of the pharynx and nasopharynx. It is distinguished from ... Upper Airway Obstruction. In: StatPearls. StatPearls Publishing, Treasure Island (FL); 2020. Englar, Ryane E. (3 July 2019). " ... Emergency management of the paediatric airway". In John M. Graham (ed.). Pediatric ENT. Glenis K. Scadding, Peter D. Bull. ...
Other contributing factors may include upper airway obstruction, increased blood viscosity, abnormalities of cardiac origin ( ... "Effects of airway obstruction on transmural pulmonary artery pressure in exercising horses". American Journal of Veterinary ... "Effects of extrathoracic airway obstruction on intrathoracic pressure and pulmonary artery pressure in exercising horses". ... dynamic upper airway obstruction) would increase the severity of EIPH; however neither experimentally induced laryngeal ...
... is caused by a mechanical obstruction of the airway that prevents normal breathing. This obstruction can be partial ( ... There are many advanced medical treatments to relieve choking or airway obstruction. These include inspection of the airway ... The object can block the upper or lower airway passages.[6] The airway obstruction is usually partial but can also be complete. ... a child's airway is smaller in diameter than an adult's airway, which means that smaller objects can cause an airway ...
In order to stabilize the baby, the umbilical cord is kept intact to provide oxygen to the fetus in case of airway obstruction ... The main priority for treating epignathus is to establish a usable airway free of obstruction and then to feed the baby. This ... The tumor can grow within the oral cavity and protrude out of the mouth, causing obstruction of the airway and therefore ... Jadhav SS, Korday CS, Malik S, Shah VK, Lad SK (January 2017). "Epignathus Leading to Fatal Airway Obstruction in a Neonate". ...
Rarely, children will have significant life-threatening airway obstruction. The vast majority, however, will only have stridor ... cartilages or the mucosa/tissue over the arytenoid cartilages can collapse into the airway and cause airway obstruction.[ ... causing airway obstruction. It can also be seen in older patients, especially those with neuromuscular conditions resulting in ... Laryngomalacia results in partial airway obstruction, most commonly causing a characteristic high-pitched squeaking noise on ...
TO can cause airway obstruction, bleeding and chronic cough. Treatment involves the use of bronchodilators, and physical ... The nodules usually spare the posterior wall of the airway because they are of cartilaginous origin, while the posterior wall ... of the airway is membranous (does not contain cartilage). This is as opposed to tracheobronchial amyloidosis, which does not ...
"Preliminary experience with bronchotherapeutic procedures in central airway obstruction". Chang Gung Med J. 26 (4): 240-9. PMID ... "Early endoscopic treatment of acute inflammatory airway lesions improves the outcome of postintubation airway stenosis". ... In babies and young children however, the subglottis is the narrowest part of the airway and most stenoses do in fact occur at ... Wassermann K, Mathen F, Edmund Eckel H (October 2000). "Malignant laryngotracheal obstruction: a way to treat serial stenoses ...
... tilting the head forward helps decrease the chance of nausea and airway obstruction.[6] Swallowing excess blood can irritate ... Such bleeding is called pseudoepistaxis (pseudo + epistaxis). Examples include blood coughed up through the airway and ending ...
"Air Pollution from Livestock Farms Is Associated with Airway Obstruction in Neighboring Residents". American Journal of ... individuals working in CAFOs are at risk for chronic airway inflammatory diseases secondary to dust exposure, with studies ...
Asthma being a reversible obstruction of airways is often considered separately, but many COPD patients also have some degree ... The airways become inflamed and produce excess mucus and the muscles around the airways tighten making the airways narrower. ... Obstructive lung disease is a category of respiratory disease characterized by airway obstruction. Many obstructive diseases of ... It is generally characterized by inflamed and easily collapsible airways, obstruction to airflow, problems exhaling and ...
"Airway obstruction, bronchospasm, and cough". In Berger AM, Shuster JL, Von Roenn JH (eds.). Principles and practice of ...
... like upper airway obstruction. (Note regarding clinical variability: respiratory difficulties might be absent.) Pneumonia ... Antila H, Laitio T, Aantaa R, Silvoniemi P, Pakkanen A (1998). "Difficult airway in a patient with Marshall-Smith syndrome". ... Machotta A, Hoeve H (Apr 2008). "Airway management and fiberoptic tracheal intubation via the laryngeal mask in a child with ...
As explained above, sleep apnea is often caused by multiple co-existing obstructions at various locations of the airway such as ... Narrowing of the airway in the nose and throat (hence constricting breathing) snoring and even iatrogenically caused sleep ... It is administered as a stand-alone procedure in the hope that the tissue which obstructs the patient's airway is localized in ... The goal is to improve the airway and thereby treat (or possibly cure) sleep apnea. It has been found that obstructive sleep ...
It may occur in partial obstruction of a large airway, as in e.g. congenital lobar emphysema, bronchial atresia and mucous ...
Soft tissue swelling occurs, along with airway obstruction and trouble swallowing, due to the rapid enlargement of the cyst.[2] ...
... size may have a more significant impact on upper airway obstruction for obese children than for those of average weight. ... Surgical removal (tonsillectomy) may be advised if the tonsils obstruct the airway or interfere with swallowing, or in patients ...
Airway trauma features: upper airway obstruction, laryngospasm and bronchial occlusion for intubation ... Responds to airway trauma or obstruction: esophageal, nasal and oral intubation, and BVM ventilation and laryngoscopic ...
... would have resulted in their deaths due to airway obstruction.[118] Their report was in 395 pages and delivered 153 key ... turnstiles and those who had been refused entry could not leave because of the crowd behind them but remained as an obstruction ...
... in particular when assessing possible upper airway obstruction. Sometimes, the test will be preceded by a period of quiet ... Actual volume of the lung including the volume of the conducting airway. ... may be a more sensitive parameter than FEV1 in the detection of obstructive small airway disease.[14][15] However, in the ... due to the premature closure of airway in expiration, just not in the same proportion as FEV1 (for instance, both FEV1 and FVC ...
In horses it is known as recurrent airway obstruction, can be quite severe, and most often is linked to an allergic reaction to ... can occur from poor gas exchange due to decreased ventilation from airway obstruction, hyperinflation, and a reduced desire to ... Cochrane Airways Group) (March 2014). "Self management for patients with chronic obstructive pulmonary disease". The Cochrane ... Narrowing of the airways occurs due to inflammation and scarring within them. This contributes to the inability to breathe out ...
Even in these extreme cases, the surgery tends to cure not only the apnea and upper airway obstruction but allows normal ... Automatic positive airway pressure, or automatic positive airway pressure, also known as "Auto CPAP", incorporates pressure ... Surgical treatments to modify airway anatomy, known as sleep surgery, are varied and must be tailored to the specific airway ... is the most common type of sleep apnea and is caused by complete or partial obstructions of the upper airway. It is ...
Sleep apnea, obstructive sleep apnea, obstruction of the airway during sleep, causing lack of sufficient deep sleep, often ... dentists collaborate with sleep physicians at accredited sleep centers and can provide oral appliance therapy and upper airway ...
The fetal urine is critical to the proper development of the lungs by aiding in the expansion of the airways - alveoli, by ... Type IV occurs when a longstanding obstruction in either the kidney or ureter leads to cystic kidneys or hydronephrosis. This ... While these types of obstructions occur frequently in fetuses, they rarely tend to lead to fetal demise. ... atresia of the ureter or urethra causing obstruction of the urinary tract, polycystic or multicystic kidney diseases, renal ...
In cases where allergic attack is progressing towards airway obstruction, epinephrine may be life-saving. ... Efforts to protect the airway may include intubation or cricothyroidotomy.[1] Histamine related angioedema can be treated with ... In severe cases, stridor of the airway occurs, with gasping or wheezy inspiratory breath sounds and decreasing oxygen levels. ...
After birth, infants with a persistent cystic hygroma must be monitored for airway obstruction. A thin needle may be used to ... reduce the volume of the cystic hygroma to prevent facial deformities and airway obstruction. Close observation of the baby by ...
Hogg JC, Chu F, Utokaparch S, et al. (2004). "The Nature of Small-Airway Obstruction in Chronic Obstructive Pulmonary Disease ... Burrows B, Fletcher CM, Heard BE, et al (1966). "The emphysematous and bronchial types of chronic airways obstruction. A ... Risk to relatives for airflow obstruction and chronic bronchitis". Am. J. Respir. Crit. Care Med. 157 (6 Pt 1): 1770-8. பப்மெட் ... Celli BR, Cote CG, Marin JM, et al. (March 2004). "The body-mass index, airflow obstruction, dyspnea, and exercise capacity ...
Airway Sleep investigations Endoscopic Surgery Craniofacial surgery Dizziness Apnea and snoring Vascular malformations ... Nasal obstruction. *Nasal septum deviation. *Sinusitis - acute, chronic. *Environmental allergies. *Rhinitis. *Pituitary tumor ...
... upper airway, CPAP, hypoxemia, UVVP, uvula, Somnoplasty, obesity, airway obstruction, EEG, electroencephalogram, Klonopine, ...
... symptoms of bronchial airways obstruction, shortness of breath, and/or nasal congestion/rhinorrhea occurring shortly after ... LTC4, LTD4, and LTE4 contribute to allergic airways reactions such as asthma, certain non-allergic hypersensitivity airways ... particularly in patients with airway obstruction. As a second drug added to corticosteroids, leukotriene inhibitors appear ... and other lung diseases involving bronchoconstriction by contracting these airways and promoting in these airways inflammation ...
... of the patient's airway obstructions are eliminated. .mw-parser-output .templatequote{overflow:hidden;margin:1em 0;padding:0 ... This is the same as a "PSG" but with the addition of the mask applied so the technician can increase the airway pressure inside ... CPAP is continuous positive airway pressure and is delivered via a mask to the patient's nose or the patient's nose and mouth ... This forces air in and out of the mouth while no air enters the airway and lungs. Thus, the pressure transducer and ...
... and the remote possibility of airway obstruction due to bilateral vocal cord paralysis. Complications are uncommon when the ... Bilateral damage presents as laryngeal obstruction after surgery and can be a surgical emergency: an emergency tracheostomy may ... Haemorrhage/Hematoma (This may compress the airway, becoming life-threatening.). *Removal or devascularization of the ... Other indications for surgery include cosmetic (very enlarged thyroid), or symptomatic obstruction (causing difficulties in ...
More serious cases are treated with continuous positive airway pressure.[5] The 2019 Nobel Prize in Physiology or Medicine was ... Although the severity of airflow obstruction as measured by FEV1 is the best correlate with overall prognosis in patients with ...
"17beta-Estradiol inhibits Ca2+-dependent homeostasis of airway surface liquid volume in human cystic fibrosis airway epithelia" ... "Relative contribution of genetic and nongenetic modifiers to intestinal obstruction in cystic fibrosis". Gastroenterology 131 ... "Inhaled aztreonam lysine for chronic airway Pseudomonas aeruginosa in cystic fibrosis". Am. J. Respir. Crit. Care Med. 178 (9 ...
ABC (Airway, Breathing, Circulation)[edit]. *Verify the state of consciousness by calling the child and, if there is no sign of ... If air doesn't pass, consider a foreign body obstruction and continue with chest compressions (while carrying out maneuvers of ... Healthcare professionals are recommended to use, if available, an oropharyngeal airway: in the infant, placed by the use of a ...
... s should be kept free of dependent loops, kinks, and obstructions which may prevent drainage.[24] In general, chest ... of chest tubes is commonly performed to clear chest tube obstructions. No conclusive evidence has demonstrated that any of ...
Tracheal intubation is indicated in people with decreased level of consciousness or other risk of airway obstruction.[17] ...
... may be performed to investigate the cause of an obstruction.[10] Management of obstructions depends on the cause. Obstructions ... Swelling of the airway can cause narrowing of the airway, causing a hoarse breathing sound called stridor, or even cause ... Mucus helps to moisten and protect the airways.[5] Mucus lines the ciliated cells of the trachea to trap inhaled foreign ... Main articles: Tracheal intubation and Airway management. Tracheal intubation refers to the insertion of a tube down the ...
Situations that can cause asphyxia include but are not limited to: the constriction or obstruction of airways, such as from ... Smothering is the mechanical obstruction of the flow of air from the environment into the mouth and/or nostrils, for instance, ... In a normal situation, smothering requires at least partial obstruction of both the nasal cavities and the mouth to lead to ...
David P. Naidich (2005). Imaging of the Airways: Functional and Radiologic Correlations. Lippincott Williams & Wilkins. ISBN ... "Predicting LVOT Obstruction After TMVR". JACC. Cardiovascular imaging. 9 (11): 1349-1352. doi:10.1016/j.jcmg.2016.01.017. ISSN ...
Recurrent airway obstruction. References[edit]. *^ Respiratory Emergencies, section Acute Upper Airway Obstruction. From FP ... Lower airway obstruction[edit]. Further information: Obstructive lung disease. Lower airway obstruction is mainly caused by ... Upper airway obstruction[edit]. Further information: Choking. Causes of upper airway obstruction include foreign body ... Diseases that cause lower airway obstruction are termed obstructive lung diseases. Lower airway obstruction can be measured ...
Reversible airways obstruction.. Br Med J 1972; 2 doi: https://doi.org/10.1136/bmj.2.5806.166-c (Published 15 April 1972) Cite ...
... air passes through our airways (the tubes that carry air into and out of the lungs) to get to our lungs. ... Airway Obstruction. When we breathe, air passes through our airways (the tubes that carry air into and out of the lungs) to get ... The muscles surrounding the airways also tighten, which makes the already clogged airways even narrower. These narrow, swollen ... and mucus-filled airways are obstructed - in other words, they dont let air through as easily as healthy airways. Obstructed ...
When something keeps the air from moving in and out of the airways in your lungs, its called an airway obstruction. ... Airway Obstruction. Say: air-way ub-struk-shun. When something keeps the air from moving in and out of the airways in your ... its called an airway obstruction. When someone has asthma, the airways may become obstructed, or blocked, because the airways ...
An acute upper airway obstruction is a blockage that suddenly occurs in your upper airway - the part of your respiratory system ... An acute upper airway obstruction (UAO) is a blockage that occurs in your upper airway. The upper airway of your respiratory ... Any obstruction of the upper airway has the potential to be life-threatening. Seek emergency medical attention immediately if ... Emergency treatment of an upper airway obstruction. Treatment of your UAO will depend on the cause. Regardless of the source of ...
Home Health Conditions and Diseases Airway Obstruction Prevention Airway Obstruction: Prevention. Facebook Twitter Linkedin ... Foods account for half of airways obstructions. Keep the following foods away from children younger than 4 years:. *. Hot dogs ... These may lead to obstruction of an infants airway or suffocation. ...
Upper airway obstruction answers are found in the Diagnosaurus powered by Unbound Medicine. Available for iPhone, iPad, Android ... Upper airway obstruction is a topic covered in the Diagnosaurus. To view the entire topic, please log in or purchase a ... Upper Airway Obstruction [Internet]. In: Diagnosaurus. McGraw-Hill Education; 2015. [cited 2021 April 21]. Available from: ... Zeiger, Roni F.. "Upper Airway Obstruction." Diagnosaurus, 4th ed., McGraw-Hill Education, 2015. 5minute, www.unboundmedicine. ...
Recurrent airway obstruction (RAO). Many horses across Canada are affected by recurrent airway obstruction (RAO), a respiratory ... Recurrent airway obstruction is a chronic condition that waxes and wanes. Affected horses experience episodes of respiratory ... both of which contribute to airway obstruction and difficulty in breathing. Episodes can vary in severity, but for some horses ... Strict management to reduce your horses exposure to airway irritants will help to maintain your horse in remission and keep it ...
... Airway Obstruction. (En español: Obstrucción de las vías aéreas) ... its called an airway obstruction. When someone has asthma, the airways may become obstructed, or blocked, because the airways ... Say: air-way ub-struk-shun. When something keeps the air from moving in and out of the airways in your lungs, ...
... Chikoti Wheat,1,2 Ryan J. Bickley,3 Erik Cohen,4 ... "Juvenile Nasopharyngeal Angiofibroma Presenting with Acute Airway Obstruction," Case Reports in Otolaryngology, vol. 2016, ...
Airway obstruction causes increased resistance to airflow and decreased expiratory flow rates. These changes lead to a ... encoded search term (How does airway obstruction in asthma affect the ability to breathe?) and How does airway obstruction in ... How does airway obstruction in asthma affect the ability to breathe?. Updated: Nov 20, 2020 ... Airway obstruction causes increased resistance to airflow and decreased expiratory flow rates. These changes lead to a ...
Relation between lung cancer, chronic bronchitis, and airways obstruction. Br Med J 1975; 3 :678 ... Relation between lung cancer, chronic bronchitis, and airways obstruction.. Br Med J 1975; 3 doi: https://doi.org/10.1136/bmj. ...
The emergent evaluation of children with acute respiratory distress and airway management techniques for the difficult ... This topic will review an emergency diagnostic and therapeutic approach to acute upper airway obstruction in children. ... Airway pressure with chest compressions versus Heimlich manoeuvre in recently dead adults with complete airway obstruction. ... Emergency evaluation of acute upper airway obstruction in children. Author. Laura L Loftis, MD. Laura L Loftis, MD ...
Acute upper airway obstruction is a medical emergency and can be caused by many serious conditions such as a foreign body ... Lithium-Associated Thyromegaly: An Unusual Cause of Airway Obstruction. Ashish Verma, Siddharth Wartak, and Mark Tidswell ... Thyromegaly has rarely been reported as a source of airway compromise. We present a patient whose thyromegaly is presumed to ... occluding the airway, intrinsic swelling (as in anaphylaxis), or extrinsic compression. ...
The increased prevalence of rheumatoid factor in smokers with airway obstruction compared with smokers with normal airways9 and ... airway obstruction. Birring and colleagues have shown an interesting link between respiratory symptoms and autoimmunity in the ... Our group has also found correlations between the severity of airway obstruction and the extent of rheumatoid disease at both ... Saravanan V, Cox J, Keaney NP, et al. Airway obstruction in rheumatoid arthritis: correlation with articular disease. ...
recurrent airway obstruction synonyms, recurrent airway obstruction pronunciation, recurrent airway obstruction translation, ... English dictionary definition of recurrent airway obstruction. n. A respiratory disease of horses that is characterized by a ... recurrent airway obstruction. Also found in: Thesaurus, Medical, Legal, Acronyms, Encyclopedia, Wikipedia. recurrent airway ... Recurrent airway obstruction - definition of recurrent airway obstruction by The Free Dictionary https://www.thefreedictionary. ...
HealingWell.com Forum , Diseases & Conditions , Allergies & Asthma , Mild Airway obstruction? Select A Location. ****** Top of ... apparently it showed that I have a mild airway obstruction. I also found out, after I took the PFT, that I had a sinus ...
... a narrowing of the airway in children, is a complex medical condition. While it can be something a child is born with or caused ... Novel biodegradable magnesium-alloy tracheal stents for children with airway obstruction. *Download PDF Copy ... In-vivo efficacy of biodegradable ultrahigh ductility Mg-Li-Zn alloy tracheal stents for pediatric airway obstruction. ... The stent was shown to keep the airway open over time and have low degradation rates, displaying normal healing and no adverse ...
The lower airway microbiota has been associated with clinical features such as airway obstruction, symptom control, and ... Objective To assess the relationship between local airway inflammation, severity of disease, and the lower airway microbiota in ... Inflammation of the airways was assessed via a cytokine and chemokine panel. Lower airway microbiota composition was determined ... AP2 was associated with more obstruction, compared to AP1. After treatment with FP reduced MIP-1β and TNF-α and increased IL-2 ...
... can compromise the airway and cause breathing difficulty. ... No matter the cause, airway obstruction in children can be life ... at two medical centers underwent a total of 127 ES for 139 obstruction sites. Airway obstruction was caused by congenital ... Japanese surgeons develop new technique to relieve airway obstruction in children. *Download PDF Copy ... A team of surgeons in Japan has developed a technique to relieve airway obstruction in children. The technique, known as ...
... secretion is essential for preventing airway obstruction in allergic airway disease. These results indicate that SLC26A9 may ... treated Slc26a9-deficient mice exhibited airway mucus obstruction, which did not occur in wild-type controls. In a study ... We found that IL-13 treatment increased Cl- secretion in the airways of wild-type but not Slc26a9-deficient mice. While IL-13- ... Representative morphology of conducting airways (. A. ) and lung parenchyma (. B. ) in naive wild-type and Slc26a9-/-. mice. ...
SLC26A9 prevents airway mucus obstruction in the presence of mucin overproduction in Th2-mediated airway disease. (A) ... The observation that genetic deletion of Slc26a9 produced significant airway mucus obstruction in allergic airway disease ... airway mucus obstruction was observed in the majority of IL-13-treated Slc26a9-/- mice (Figure 3D). Further, airway morphometry ... secretion is activated and prevents airway mucus obstruction in allergic airway disease. These results suggest SLC26A9 as a ...
Airway Obstruction. When we breathe, air passes through our airways (the tubes that carry air into and out of the lungs) to get ... The muscles surrounding the airways also tighten, which makes the already clogged airways even narrower. These narrow, swollen ... and mucus-filled airways are obstructed - in other words, they dont let air through as easily as healthy airways. Obstructed ... In someone with asthma, the airways are inflamed, which means that they swell and produce lots of thick mucus. ...
Brachycephalic Airway Obstruction Syndrome (BAOS). Related terms: Brachycephalic Obstructive Airway Syndrome (BOAS), ... Most brachycephalic dogs are affected by upper airway obstruction to some degree (Brown & Gregory 2005). The airways are ... Brachycephalic Airway Obstruction Syndrome (BAOS) is a result of breeding practices that have selected for a shortened facial ... Brachycephalic Airway Obstruction Syndrome (BAOS) occurs in all dog breeds with brachycephaly Brachycephaly is characterised by ...
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Centers RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.. ...
... was compared with terbutaline during a 5-week single-blind crossover study in 16 patients with chronic airways obstruction and ... A clinical trial of oral clenbuterol (NAB 365) in chronic airways obstruction Curr Med Res Opin. 1980;6(7):449-55. doi: 10.1185 ... It is suggested that clenbuterol is a good alternative oral drug for treatment of chronic airways obstruction. ... was compared with terbutaline during a 5-week single-blind crossover study in 16 patients with chronic airways obstruction and ...
It is important for the otolaryngologist to be aware of the myriad of causes of nasal airway obstruction. An accurate history ... The different causes of nasal airway obstruction are very wide-ranging, spanning from congenital life threatening causes to ... the physician should be aware of the possibility of a widened posterior septum as a cause of nasal airway obstruction. ... Herein, we present a case of nasal obstruction caused by widening of the posterior septum. A 52-year-old gentleman presented to ...
It should be remembered that opening the airway is the overriding priority, as hypoxia from airway obstruction is inevitably ... The tongue falling backwards and blocking the nasopharynx is the commonest cause of upper airway obstruction. However, it may ... LARYNGEAL MASK AIRWAY (LMA). A tube with a small mask with a cuff at the end designed to sit over the larynx is inserted. It is ... The nasopharyngeal airway is of great value if the teeth are clenched or if the mouth and face are injured. They should only be ...
Omalizumab, airway obstruction and remodeling. Michela Maria Bellocchia, Renza Ambrosanio, Filippo Patrucco, Giulia Verri, ... Omalizumab, airway obstruction and remodeling. Michela Maria Bellocchia, Renza Ambrosanio, Filippo Patrucco, Giulia Verri, ... Omalizumab, airway obstruction and remodeling. Michela Maria Bellocchia, Renza Ambrosanio, Filippo Patrucco, Giulia Verri, ... Omalizumab, airway obstruction and remodeling Message Subject (Your Name) has sent you a message from European Respiratory ...
  • The upper airway of your respiratory system consists of the trachea, larynx or voice box, and throat. (healthline.com)
  • 2,3 Congenital and neoplastic lesions of the face, larynx, and trachea should be considered in the infant with airway obstruction. (aappublications.org)
  • While stents are great at holding the airway open and simultaneously allowing the trachea to continue growing, they can move around, or cause damage when they're eventually removed. (news-medical.net)
  • Several pediatric medical conditions, such as congenital heart disease, vascular compression, and congenital softening of the cartilage lining the trachea or bronchi, can compromise the airway and cause breathing difficulty. (news-medical.net)
  • The technique, known as external stenting (ES), expands and stabilizes the airway by suspending its wall to a rigid prosthesis placed around the bronchus or trachea. (news-medical.net)
  • A larger piece that is approximately one-half to two-thirds of the circumference is used to stabilize the cartilage portion of the airway and the smaller one with one-third of the circumference stabilizes the membrane portion of the trachea. (news-medical.net)
  • The upper airway is the segment of the airways between the nose or mouth and the carina at the lower end of the trachea. (clinicaladvisor.com)
  • The upper airway has four compartments: the nose (during nasopharyngeal breathing) and mouth (during oropharyngeal breathing), the pharynx, the larynx and the trachea. (clinicaladvisor.com)
  • Factors that predispose children to airway compromise include the orientation of their larynx, the narrow caliber of their trachea, and their weak intercostal muscles. (ovid.com)
  • Congenital high airway obstruction syndrome (CHAOS) occurs when the fetal airway is blocked, causing swelling of the lungs, trachea and bronchial tubes, as well as heart failure. (lifespan.org)
  • Other types of cancer also may cause airway obstruction by metastatic spread to the trachea or bronchi. (vcuhealth.org)
  • This inflatable tube is inserted into the mouth or nose and passed into the trachea to provide mechanical ventilation, to provide a suction route, to prevent aspiration of stomach contents, and to bypass upper airway obstruction. (thefreedictionary.com)
  • Central airway obstruction (CAO) refers to a variety of obstructive processes that impede airflow within the central airways, trachea, and mainstem bronchi. (bmj.com)
  • There is intrinsic, inside the airway (larynx, trachea, bronchus) and extrinsic which is compression of these organs such as by a large blood clot or cancer or strangulation. (healthtap.com)
  • We present a patient whose thyromegaly is presumed to have been induced by lithium and was massive enough to cause severe airway compromise. (hindawi.com)
  • When the obstruction is severe, laser resection and tracheal stenting have been used as a bridge to surgery. (clinicaladvisor.com)
  • Even in young patients with partial airway occlusion, symptoms can be severe and potentially life-threatening. (ovid.com)
  • Neoplastic severe central airways obstruction, interventional bronchoscopy: A decision-making analysis. (biomedsearch.com)
  • This study focuses on the development of a predictive preintervention model that is useful when deciding whether to perform therapeutic interventional bronchoscopy in patients with severe central airway obstruction. (biomedsearch.com)
  • METHODS: A total of 804 patients who underwent rigid bronchoscopy under general anesthesia to treat severe neoplastic central airway obstruction from 1990 to 2009 were studied. (biomedsearch.com)
  • RESULTS: Of the 804 patients with severe neoplastic airway obstruction, 681 (84.7%) achieved luminal clearance, and the procedure was considered an endoscopic success. (biomedsearch.com)
  • Anaphylactic reactions can also result in facial swelling and severe obstruction of the nostrils (See the section on laryngeal edema on the opposite page). (veterinarypracticenews.com)
  • Prompt diagnosis, communication, and appropriate multidisciplinary airway management can lead to successful outcomes even in these severe cases. (dovepress.com)
  • Choking, laryngospasm, and epiglottis is can all cause acute upper airway obstruction that is severe! (healthtap.com)
  • Regression models assessing associations between occupational exposures (no/low/high), level of lung function (prebronchodilator FEV 1 , FEV 1 /FVC) and mild and moderate/severe airway obstruction were adjusted for sex, age, height, weight, current/ex-smoking and packyears. (bmj.com)
  • Results Occupational exposure to VGDF and pesticides was associated with a lower level of FEV 1 and FEV 1 /FVC and with a higher prevalence of mild and moderate/severe airway obstruction in the two general populations investigated. (bmj.com)
  • The governing board of the California stem cell agency today effectively approved a $4.4 million grant for research involving severe airway obstruction. (blogspot.com)
  • Is it best to immediately ventilate a person with a severe airway obstruction? (healthtap.com)
  • Severe narrowing of laryngeal airway. (radiopaedia.org)
  • Assess the safety and feasibility of local oncological drug delivery into the bronchial wall after recanalization of subjects with malignant airway obstruction. (clinicaltrials.gov)
  • This association can be related to previous studies indicating that neck flexion interferes with neuromuscular regulation of pharyngeal patency and can produce intermittent airway obstruction. (nih.gov)
  • Chemotherapy and radiation therapy are often unsuccessful or prolonged in restoring airway patency and reinflation of collapsed lung. (vcuhealth.org)
  • This is a hollow tube inserted into the esophagus to maintain airway patency in unconscious persons and to permit positive-pressure ventilation through the face mask connected to the tube. (thefreedictionary.com)
  • As the nose is made smaller and narrower during rhinoplasty, the patency of nasal airway decreases. (vgplasticsurgery.com)
  • Many horses across Canada are affected by recurrent airway obstruction (RAO), a respiratory disease that's also known as heaves or broken wind. (usask.ca)
  • Recurrent airway obstruction is a chronic condition that waxes and wanes. (usask.ca)
  • Stridor Recurrent airway obstruction Respiratory Emergencies, section Acute Upper Airway Obstruction. (wikipedia.org)
  • Endoscopic image of the carina of a horse with recurrent airway obstruction (heaves). (merckvetmanual.com)
  • Upper airway obstructions occur in the area from your nose and lips to your larynx (voice box). (aarp.org)
  • Lower airway obstructions occur between your larynx and the narrow passageways of your lungs. (aarp.org)
  • These pressures can collapse the nostrils, larynx, and pharynx, all of which are structures of the extrathoracic airway that are not supported by bone or cartilage. (veterinarypracticenews.com)
  • The head's soft tissues are not proportionate to the shortened nature of the skull, and the excess tissues tend to increase resistance to the flow of air through the upper airway (nostrils, sinuses, pharynx and larynx). (cavalierhealth.org)
  • Stridor is when there is swelling at or just above the larynx causing obstruction to inhalation. (healthtap.com)
  • We hope this new approach leads to new and improved treatments for patients with this complex condition as well as other tracheal obstruction conditions including tracheal cancer. (news-medical.net)
  • 2020) In-vivo efficacy of biodegradable ultrahigh ductility Mg-Li-Zn alloy tracheal stents for pediatric airway obstruction. (news-medical.net)
  • Two common causes of malignant upper airway obstruction include laryngeal and tracheal carcinomas. (clinicaladvisor.com)
  • Upper airway obstruction due to goitre is frequently under-diagnosed because the progressive and insidious growth allows the patient time to compensate and remain asymptomatic for up to 70% of tracheal compression. (bmj.com)
  • Acute airway obstructions are blockages that occur quickly. (aarp.org)
  • An example of an acute airway obstruction is choking on a foreign object. (aarp.org)
  • Imaging Acute Airway Obstruction in Infants and Children. (ovid.com)
  • Acute airway obstruction is much more common in infants and children than in adults because of their unique anatomic and physiologic features. (ovid.com)
  • Because the clinical manifestations of acute airway obstruction are often nonspecific, clinicians often rely on the findings at imaging to establish a diagnosis. (ovid.com)
  • Several key anatomic features of the pediatric airway make it particularly susceptible to respiratory distress, and the imaging recommendations for children suspected of having acute airway obstruction are presented. (ovid.com)
  • The purpose of this article is to provide an imaging approach to acquired causes of acute airway obstruction in children, including (a) abnormalities affecting the upper portion of the airway, such as croup, acute epiglottitis, retropharyngeal infection, and foreign bodies, and (b) abnormalities affecting the lower portion of the airway, such as asthma, bronchiolitis, and foreign bodies. (ovid.com)
  • It is essential that the radiologist recognize key imaging findings and understand the pathophysiologic features of acute airway obstruction because in most cases, when the cause is identified, the condition responds well to prompt management. (ovid.com)
  • Benign multinodular goitre is a common problem but rarely cause acute airway obstruction. (bmj.com)
  • Could allergies/post nasal drip cause the mild airway obstruction? (healingwell.com)
  • Nasal airway obstruction, a well-known cause of patient discomfort, is one of the most common presenting complaints to the otolaryngologist. (scirp.org)
  • The different causes of nasal airway obstruction are very wide-ranging, spanning from congenital life threatening causes to acquired benign causes. (scirp.org)
  • Herein, we present a case of nasal obstruction caused by widening of the posterior septum. (scirp.org)
  • It is important for the otolaryngologist to be aware of the myriad of causes of nasal airway obstruction. (scirp.org)
  • An accurate history and physical examination including anterior and posterior rhinoscopy is important in the diagnosis of nasal airway obstruction. (scirp.org)
  • More importantly, the physician should be aware of the possibility of a widened posterior septum as a cause of nasal airway obstruction. (scirp.org)
  • Nasal airway obstruction is one of the most common presenting complaints in otolaryngology. (scirp.org)
  • Herein, we present a case of nasal airway obstruction caused by widening of the posterior septum, a mild but clinically significant form of membranous choanal stenosis. (scirp.org)
  • This case highlights the importance of nasal endoscopy in the diagnosis of nasal airway obstruction. (scirp.org)
  • A recent survey of otolaryngologists reports that nasal endoscopy was considered a criterion standard in the evaluation of nasal airway obstruction [4] , corroborating the central theme of this case report. (scirp.org)
  • Since horses are obligate nasal breathers, the UA is the only conduit for airflow to and from the lungs, making a normal airway essential for the horse. (veterinarypracticenews.com)
  • Although some UA diseases ( e.g. nasal masses) result in abnormal inspiratory and expiratory noise, obstructions of the upper airway predominantly cause noise during inspiration. (veterinarypracticenews.com)
  • Obstructions of the nostrils or nasal passages must be bilateral to cause significant airflow reduction, and are an unusual reason for respiratory distress. (veterinarypracticenews.com)
  • Some of the most common causes of acute, bilateral nasal obstruction include trauma, bee stings, ant bites, snake bites, and acute bilateral jugular vein thrombosis. (veterinarypracticenews.com)
  • A surgeon can evaluate the patient's nasal airways for obstruction at the opening of the nose or inside the nose. (uky.edu)
  • Nasal airway obstruction is very common. (vgplasticsurgery.com)
  • Many patients presenting to plastic surgeons for nose reshaping or rhinoplasty are diagnosed with a nasal airway obstruction. (vgplasticsurgery.com)
  • However, during examination a partial or complete nasal airway obstruction is diagnosed. (vgplasticsurgery.com)
  • There are several causes of nasal airway obstruction. (vgplasticsurgery.com)
  • Most experienced rhinoplasty surgeons will take measures to also open nasal airways to improve or at least maintain the breathing function of the nose since creating beautiful nose that is blocked is simply a useless nose. (vgplasticsurgery.com)
  • what are symptoms of airway obstruction in a toddler? (healthtap.com)
  • The upper airway has been divided into the extrathoracic portion of the airway, the segment above the thoracic inlet, and the intrathoracic portion. (clinicaladvisor.com)
  • Brachycephalic airway obstruction syndrome (BAOS) * is characterized by primary and secondary upper respiratory tract abnormalities, which may result in significant upper airway obstruction. (cavalierhealth.org)
  • These seven represented or were referred at 24-51 days of age (mean 36.6 days), and were subsequently diagnosed with significant upper airway obstruction. (bmj.com)
  • We report a rare case of significant airway obstruction in a 14-month-old patient requiring rapid, emergent tracheotomy after attempts at endotracheal intubation by an experienced airway surgeon were unsuccessful. (dovepress.com)
  • 2 We have reported a similar association between airway obstruction and rheumatoid arthritis with a 2-3-fold increased prevalence of wheeze and physiological abnormalities in patients with rheumatoid arthritis compared with controls with osteoarthritis. (bmj.com)
  • This analysis found no association between airway obstruction and any the following: gender, body mass index, smoking cessation in the past three years, cannabis smoking, or HCV status. (thebodypro.com)
  • In someone with asthma, the airways are inflamed, which means that they swell and produce lots of thick mucus. (kidshealth.org)
  • When someone has asthma , the airways may become obstructed, or blocked, because the airways are swollen, narrow, and clogged with thick mucus. (kidshealth.org)
  • Whereas it is well recognized that psychogenic and emotional factors can trigger asthma, 1 the role played by psychogenic and emotional factors in upper airway obstruction is less well reported. (aappublications.org)
  • How does airway obstruction in asthma affect the ability to breathe? (medscape.com)
  • Mechanism of airway inflammation in asthma. (medscape.com)
  • Effects of Interleukin-13 Blockade on Allergen-induced Airway Responses in Mild Atopic Asthma. (medscape.com)
  • Asthma is a chronic condition with unknown pathogenesis, and recent evidence suggests that enhanced airway epithelial chloride (Cl-) secretion plays a role in the disease. (jci.org)
  • To determine the role of the solute carrier family 26, member 9 (SLC26A9) Cl- channel in asthma, we induced Th2-mediated inflammation via IL-13 treatment in wild-type and Slc26a9-deficient mice and compared the effects on airway ion transport, morphology, and mucus content. (jci.org)
  • We conclude that cessation of regular treatment after 2 wk with both low-dose and high-dose inhaled terbutaline does not result in a significant rebound airway responsiveness in patients with mild asthma. (unboundmedicine.com)
  • Small airway inflammation and remodelling occurs in asthma and may underpin disease persistence, since conventional inhaled treatments do not penetrate to the small airway compartment. (bl.uk)
  • Central airway obstruction (CAO) may present in a wide variety of ways, and patients are frequently misdiagnosed with asthma or chronic obstructive pulmonary disease. (bmj.com)
  • This study aimed to estimate prevalence, incidence and risk factors of chronic airway obstruction (CAO) in a population-based adult asthma cohort. (diva-portal.org)
  • Benign causes of chronic airway obstruction are numerous and include infectious diseases (eg, tuberculosis, aspergillosis) and chronic inflammatory diseases (eg, sarcoidosis, Wegener's granulomatosis, relapsing polychondritis).Treatment using antiinfectives or antiinflammatory agents, respectively, is appropriate. (clinicaladvisor.com)
  • Small-airway obstruction and emphysema in chronic obstructive pulmonary disease. (nih.gov)
  • We wanted to determine whether there was a relationship between small-airway obstruction and emphysematous destruction in COPD. (nih.gov)
  • There is an important unmet need for reliable and non-invasive methods to measure small airway obstruction. (bl.uk)
  • Small airway obstruction and COPD are highly prevalent among people living with HIV, partly because of high-frequency risk factors such as smoking and lung infection. (thebodypro.com)
  • In a presentation at the 96th AATS Annual Meeting, investigators describe their experience with external stenting to relieve airway obstruction in 98 children over an 18-year period. (news-medical.net)
  • A team of surgeons in Japan has developed a technique to relieve airway obstruction in children. (news-medical.net)
  • Children have small airways and are at highest risk of complications related to airway swelling. (healthline.com)
  • Intraoral removal of a submandibular gland stone is less invasive than submandibulectomy, with no life-threatening airway complications reported until now. (dovepress.com)
  • Surgeons should be vigilant of the potential risk of airway complications following an intraoral approach for submandibular gland stone removal. (dovepress.com)
  • Corticosteroids may have a role in hastening resolution of some complications, especially upper airway obstruction and possibly immune-mediated anemia and thrombocytopenia, but should be used judiciously. (lww.com)
  • and a patient age of 55 or more-increase the risk of airway complications. (americannursetoday.com)
  • Cosio MG , Majo J, Cosio MG. Inflammation of the airways and lung parenchyma in COPD: role of T cells. (bmj.com)
  • Our data demonstrate that the SLC26A9 Cl- channel is activated in airway inflammation and suggest that SLC26A9-mediated Cl- secretion is essential for preventing airway obstruction in allergic airway disease. (jci.org)
  • Conclusions - Our findings support the hypothesis that omalizumab attenuates airway inflammation and remodeling, acting in the first few months of therapy. (ersjournals.com)
  • Higher odds of airway obstruction with HIV could be explained, the researchers hypothesize, by 'an interaction between HIV, increased lung immune activation despite antiretroviral therapy[,] and smoking,' leading to oxidative stress, local inflammation, and parenchyma destruction. (thebodypro.com)
  • Diseases that cause lower airway obstruction are termed obstructive lung diseases . (wikipedia.org)
  • 8 A key investigation would be to study the origin of proinflammatory cells and cytokines when airway obstruction occurs in the presence of organ specific autoimmune diseases to determine whether these are produced elsewhere before "homing" into the lung or are activated and produced de novo in the lung. (bmj.com)
  • Is the lung (that is, the airway) a "culprit" rather than a "target" organ in autoimmune diseases? (bmj.com)
  • These results indicate that SLC26A9 may serve as a therapeutic target for airway diseases associated with mucus plugging. (jci.org)
  • Both benign and malignant diseases of the upper airways may lead to progressive airway obstruction. (clinicaladvisor.com)
  • We developed novel methods for analysing inert gas washout curves, and showed that the parameters derived are repeatable, capture the full information content of the curve, and may be superior to standard parameters in distinguishing between subphenotypes of airway diseases. (bl.uk)
  • This information refers to the general prevalence and incidence of these diseases, not to how likely they are to be the actual cause of Tracheobronchial causes to airway obstruction. (rightdiagnosis.com)
  • Airway obstruction is a blockage of respiration in the airway . (wikipedia.org)
  • It is different from airway restriction (which prevents air from diffusing into the pulmonary arteries because of some kind of blockage in the lungs). (wikipedia.org)
  • An acute upper airway obstruction (UAO) is a blockage that occurs in your upper airway. (healthline.com)
  • A blockage in your airway could prevent your body from getting enough oxygen. (healthline.com)
  • Congenital high airway obstruction syndrome (CHAOS) is a term used to describe a rare congenital anomaly (present before birth) characterized by a blockage of the airway. (chop.edu)
  • This blockage can occur in different areas along the airway and causes fluid to become trapped in the unborn baby's lungs. (chop.edu)
  • An airway obstruction is a blockage in any part of the airway. (aarp.org)
  • 1. Airways resistance and lung volume were measured in twenty-five patients with chronic bronchitis and fifteen patients without chest disease before and after the inhalation of isoprenaline. (portlandpress.com)
  • 2. There were significant decreases in airways resistance after isoprenaline inhalation and intravenous atropine both in patients with bronchitis and normal subjects but the decreases were greater in the patients with chronic bronchitis. (portlandpress.com)
  • This is the result of subatmospheric airway pressures that develop during inhalation. (veterinarypracticenews.com)
  • Stertor is when the tongue or upper throat tissues cause obstruction to inhalation in the upper part of the throat. (healthtap.com)
  • When an inflammatory reaction occurs in the horse's lungs, the airways narrow and there's an excessive production of mucus secretions - both of which contribute to airway obstruction and difficulty in breathing. (usask.ca)
  • Brachycephalic Airway Obstruction Syndrome (BAOS) occurs in all dog breeds with brachycephaly Brachycephaly is characterised by greatly shortened upper jaws and noses, but the soft tissues of the nose and throat remain unchanged, thus these tissues are squeezed into a substantially smaller space. (ufaw.org.uk)
  • The types of airway obstructions are classified based on where the obstruction occurs and how much it blocks. (aarp.org)
  • Bronchoscopy can also help your doctor evaluate different causes of obstruction. (aarp.org)
  • Once this has been accomplished, a variety of airway interventions including bronchoscopy, mechanical debulking, balloon bronchoplasty, and stent placement can be employed. (bmj.com)
  • Definitive diagnosis requires diagnostic bronchoscopy that permits airway inspection and assessment of the lesion or foreign body, removal of secretions, and diagnostic biopsies to be taken when indicated. (bmj.com)
  • Airway obstruction causes increased resistance to airflow and decreased expiratory flow rates. (medscape.com)
  • The neutrophil numbers correlated with physiological evidence of increased bronchial reactivity to methacholine and airflow obstruction, suggesting recruitment of neutrophils as the effector cell by the controlling lymphocytes. (bmj.com)
  • Bronchial reactivity and airflow obstruction in rheumatoid arthritis. (bmj.com)
  • Measurements of expiratory airflow and respiratory effort indicated that 36 of 43 spells were mixed, consisting of central apnea preceded or followed by airway obstruction. (nih.gov)
  • Significant treatment effects were observed with respect to spirometric airflow obstruction and air trapping, as well as with a number of MBW parameters. (bl.uk)
  • Our group has also found correlations between the severity of airway obstruction and the extent of rheumatoid disease at both the systemic 4 and articular 5 levels. (bmj.com)
  • Depending on the severity, doctors will use a combination of endoscopic techniques, surgical repair, tracheostomy, or deployment of stents to hold the airway open and enable breathing. (news-medical.net)
  • The type of obstruction, its location and severity, as well as your overall health status and personal needs, will determine which approach is appropriate for you. (henryford.com)
  • Failure to thrive occured in six of these seven infants at the time of presentation, and was a strong indicator of the severity of upper airway obstruction. (bmj.com)
  • The use of polysomnography greatly improved the diagnostic accuracy in assesssing the severity of upper airway obstruction and monitoring the response to treatment. (bmj.com)
  • It appears that malignancy and benign strictures related to previous airway interventions have become more prevalent in recent years. (clinicaladvisor.com)
  • Airway obstruction was caused by congenital tracheobronchomalacia (cartilage weakening) in 52 cases, by vascular compression in 43 cases, and a combination of both in three cases. (news-medical.net)
  • Congenital high airway obstruction syndrome can be related to genetic or chromosome differences such as Fraser syndrome or 22q11.2 deletion syndrome, among others. (chop.edu)
  • An accurate diagnosis of congenital high airway obstruction syndrome by a team that cares for a high volume of babies with CHAOS and other fetal lung lesions is essential because advanced diagnostics combined with experience can lead to improved long-term outcomes. (chop.edu)
  • BAOS is also referred to as brachycephalic airway disease (BAD) and brachycephalic airway syndrome (BAS) and even brachycephalic obstructive airway syndrome (BOAS). (cavalierhealth.org)
  • When we breathe, air passes through our airways (the tubes that carry air into and out of the lungs) to get to our lungs. (kidshealth.org)
  • When something keeps the air from moving in and out of the airways in your lungs, it's called an airway obstruction. (kidshealth.org)
  • When the horse inhales these particles, they cause an inflammatory reaction in the small airways of its lungs. (usask.ca)
  • However, bacteria in the lungs may perpetuate the condition and contribute to damage of the airways. (usask.ca)
  • To perform a BAL, your veterinarian will pass a long tube up the horse's nostrils and down into the lungs until it wedges in one of the small airways. (usask.ca)
  • We used multidetector computed tomography (CT) to compare the number of airways measuring 2.0 to 2.5 mm in 78 patients who had various stages of COPD, as judged by scoring on the Global Initiative for Chronic Obstructive Lung Disease (GOLD) scale, in isolated lungs removed from patients with COPD who underwent lung transplantation, and in donor (control) lungs. (nih.gov)
  • The airway is a complex system of tubes that conveys inhaled air from your nose and mouth into your lungs. (aarp.org)
  • An obstruction may partially or totally prevent air from getting into your lungs. (aarp.org)
  • The symptoms of an airway obstruction depend on the cause. (aarp.org)
  • A and B ) Representative morphology of conducting airways ( A ) and lung parenchyma ( B ) in naive wild-type and Slc26a9 -/- mice. (jci.org)
  • Emphysema--a disease of small airways or lung parenchyma? (nih.gov)
  • Rigid bronchoscopic intervention in patients with respiratory failure caused by malignant central airway obstruction. (nih.gov)
  • Bronchoscopic intervention in patients with malignant central airway obstruction provides initial palliation and stabilization of the airway, allowing the possibility of other effective therapeutic modalities, such as surgery, radiation, or chemotherapy. (nih.gov)
  • range, 29 to 76 years) who underwent emergency airway intervention for malignant central airway obstruction. (nih.gov)
  • These data show that rigid bronchoscopic intervention in critically ill patients with malignant central airway obstruction may be temporarily life-saving and, in some patients, may serve as a "bridge" to allow time for additional therapies for longer survival. (nih.gov)
  • While IL-13-induced mucus overproduction was similar in both strains, treated Slc26a9-deficient mice exhibited airway mucus obstruction, which did not occur in wild-type controls. (jci.org)
  • Chronic airway obstructions occur two different ways. (aarp.org)
  • Obstruction of the upper airway may occur acutely and result in respiratory distress and death in minutes. (clinicaladvisor.com)
  • Airway obstruction can occur when children choke on an object that is blocking the airway, suffocate on items that block or cover the airways, or strangle themselves with items that become wrapped around their necks. (nyhq.org)
  • The response of small airway biomarkers to an intervention was assessed within a clinical trial of a novel anti-eosinophilic agent. (bl.uk)
  • All children had been reviewed by either an experienced general paediatrician or a neonatologist in the first week of life, suggesting that clinical signs alone are insufficent to alert the physician to the degree of upper airway obstruction or that obstruction developed gradually after discharge home. (bmj.com)
  • Objective measures such as polysomnography should be used, as clinical signs alone may be an inadequate guide to the degree of upper airway obstruction. (bmj.com)
  • Subsequently Bull et al noted that upper airway obstruction may appear over the first month of life, but did not provide any specific clinical details. (bmj.com)
  • 6 This report highlights the hitherto unreported high prevalence of late clinical presentation of upper airway obstruction in the Pierre Robin sequence, and the need for close prospective respiratory monitoring of all such infants. (bmj.com)
  • Her micrognathia and cleft palate were immediately apparent but there was no clinical evidence of upper airway obstruction. (bmj.com)
  • Airway obstruction is a clinical diagnosis. (radiopaedia.org)
  • Alternatively, upper airway obstruction may evolve chronically, resulting in progressive dyspnea and exercise intolerance. (clinicaladvisor.com)
  • Defining characteristics presented by a person with ineffective airway clearance are likely to include abnormal breath sounds, alterations in respiratory rate or depth, cough (effective or ineffective and with or without sputum), cyanosis, dyspnea, and possibly fever. (thefreedictionary.com)
  • what is the definition or description of: airway obstruction? (healthtap.com)
  • Other conditions that might have Airway Obstruction as a complication may, potentially, be an underlying cause of Airway Obstruction. (rightdiagnosis.com)
  • 1,2 The rarest but most deadly complication of IM is respiratory obstruction. (lww.com)
  • You also explain that the repeated vomiting may have contributed to her airway complication. (americannursetoday.com)
  • Additional tests may include a CT scan of the head, neck, or chest to determine other sources of obstruction, such as epiglottitis. (aarp.org)
  • The study uses innovative statistical methods - parametric survival models with change points - to study the incidence of new onset obstructive airway disease (OAD) diagnoses and symptoms over the first ten years following WTC exposure, with the goal of determining the length of time that exposure response gradients are observed among exposed FDNY firefighters. (cdc.gov)
  • These results show that narrowing and disappearance of small conducting airways before the onset of emphysematous destruction can explain the increased peripheral airway resistance reported in COPD. (nih.gov)
  • 5 Late onset of upper airway obstruction, particularly after initial hospital discharge, has potentially serious consequences. (bmj.com)
  • It can be broadly classified into being either in the upper airway or lower airway . (wikipedia.org)
  • Lower airway obstruction is mainly caused by increased resistance in the bronchioles (usually from a decreased radius of the bronchioles) that reduces the amount of air inhaled in each breath and the oxygen that reaches the pulmonary arteries . (wikipedia.org)
  • Lower airway obstruction can be measured using spirometry . (wikipedia.org)
  • Obstructions of the UA often result in characteristic symptoms that allow a differentiation from lower airway problems without pursuing further diagnostics. (veterinarypracticenews.com)
  • Stridor, an abnormal, intense respiratory noise that is audible without a stethoscope, is more likely to be present in horses with obstruction of the upper rather than lower airway. (veterinarypracticenews.com)
  • The duration of an exposure response gradient between incident obstructive airways disease and work at the World Trade Center site: 2001-2011. (cdc.gov)
  • No matter the cause, airway obstruction in children can be life-threatening, requiring immediate attention. (news-medical.net)
  • Partial airway obstructions allow some air to pass. (aarp.org)
  • You can still breathe with a partial airway obstruction, but it will be difficult. (aarp.org)
  • These narrow, swollen, and mucus-filled airways are obstructed - in other words, they don't let air through as easily as healthy airways. (kidshealth.org)
  • Chronic obstruction may also result in acute respiratory distress when a critical narrowing of the airway is reached through progression of the primary cause of the obstruction or as a result of mucus plugging or bleeding. (clinicaladvisor.com)
  • airway clearance, ineffective a nursing diagnosis accepted by the North American Nursing Diagnosis Association, defined as inability by an individual to clear secretions or obstructions from the respiratory tract to maintain a clear airway. (thefreedictionary.com)
  • Goals and outcome criteria for planning and interventions to prevent, minimize, or alleviate ineffective airway clearance will depend on the patient's medical diagnosis, specific nursing diagnoses, and related pathophysiology. (thefreedictionary.com)
  • Our observations suggest that airway obstruction may be an important factor in the pathogenesis of apnea in certain preterm infants. (nih.gov)
  • Infants and children under age 4 are particularly at risk for choking on food or small objects because their upper airways are smaller, they are less experienced in chewing food properly, and they tend to explore things with their mouths. (nyhq.org)
  • 1 2 Infants with Pierre Robin sequence are classically described as developing airway obstruction soon after birth. (bmj.com)
  • 10 of these infants were diagnosed with upper airway obstruction. (bmj.com)
  • The remaining seven infants were not felt, by experienced paediatricians or neonatologists, to have airway obstruction during the initial neonatal period. (bmj.com)
  • You explain your concern about the patient's airway. (americannursetoday.com)
  • Following surgery we continue to monitor how well our patient's airway is healing using video-endoscopy in the Department of Otolaryngology endoscopy suite. (henryford.com)
  • The nasopharyngeal airway is of great value if the teeth are clenched or if the mouth and face are injured. (bmj.com)