Airways whether airflow. Medical search. Frequent questions

A cricothyrotomy is an incision made through the skin and cricothyroid membrane to establish a patent airway during certain life-threatening situations, such as airway obstruction by a foreign body, angioedema, or massive facial trauma. (wikipedia.org)
The authors conclude that acute airway obstruction was associated with exposure to aerosols of various machining fluid s and that these responses occurred at exposure levels far below those currently recommended as permissible. (cdc.gov)
Asthma is a chronic inflammatory disorder of the airways, characterized by recurrent, reversible, airway obstruction. (medicinenet.com)
Alterations in the structure of the airways, collectively termed airway remodelling, contribute to airflow obstruction in a variety of chronic lung diseases. (ersjournals.com)
COPD includes respiratory tract disorders that cause obstruction to airflow. (medindia.net)
This usually is caused by a blockage (obstruction) or narrowing in the nose, mouth, or throat (airway). (healthlinkbc.ca)
Background Asthma and chronic obstructive pulmonary disease are airway inflammatory diseases characterised by airflow obstruction. (bmj.com)
Obstructive sleep apnea (OSA) is a sleep disorder characterized by repeated obstruction to the airway during sleep. (sleepfoundation.org)
This is because the airways get smaller leading to airflow obstruction. (comfortkeepers.ie)
Asthma is the most common chronic illness in childhood and is characterized by variable airflow obstruction with airway hyperresponsiveness. (cdc.gov)
Asthma is a common chronic airway disorder characterized by periods of airflow obstruction known as asthma attacks. (cdc.gov)
Chronic Obstructive Pulmonary Disease (COPD) Chronic obstructive pulmonary disease is persistent narrowing (blocking, or obstruction) of the airways occurring with emphysema, chronic obstructive bronchitis, or both disorders. (msdmanuals.com)
The pathophysiology of asthma is complex and involves airway inflammation, intermittent airflow obstruction, and bronchial hyperresponsiveness. (medscape.com)
The mechanism of inflammation in asthma may be acute, subacute, or chronic, and the presence of airway edema and mucus secretion also contributes to airflow obstruction and bronchial reactivity. (medscape.com)
Asthma is a clinical syndrome characterized by episodic reversible airway obstruction, increased bronchial reactivity, and airway inflammation. (medscape.com)

Even fewer results have been published on the effect of the upper airway structures on the turbulent airflow in the lungs or on the effect of the turbulence on particle deposition. (ucy.ac.cy)
Surgical airway management (bronchotomy or laryngotomy) is the medical procedure ensuring an open airway between a patient's lungs and the outside world. (wikipedia.org)
The link between exposure to famine in mid and early gestation and obstructive airways disease in adulthood suggests that fetal lungs can be permanently affected by nutritional challenges during periods of rapid growth. (bmj.com)
Postmortem examination verified that the lungs in patients died of COVID-19 are indeed filled with sticky mucus, suggesting a great need to improve airway mucus clearance in critically ill COVID-19 patients. (techscience.com)
The airways in your lungs are like tubes or straws. (kidshealth.org)
You snore when the flow of air from your mouth or nose to your lungs makes the tissues of the airway vibrate. (healthlinkbc.ca)
Actually, bronchoconstriction affects the airways in a person's lungs . (teenshealth.org)
Normally, when someone inhales (breathes in), air goes in through the nose or mouth, down the trachea, and into the airways of the lungs. (kidshealth.org)
Millions of tiny sacs at the very ends of the smallest airways/tubes in the lungs. (copdfoundation.org)
The larger airways of the lungs. (copdfoundation.org)
Smaller airways of the lungs that lead to the alveoli. (copdfoundation.org)
A condition in which the bronchial tubes (airways) of the lungs become damaged, inflamed, and swollen. (copdfoundation.org)
A bronchoscopy is a diagnostic test that enables your doctor to better examine your airways and lungs. (bidmc.org)
The allergic reaction can cause airways to inflame, to the point of closing up and blocking airflow to the lungs. (healthline.com)
This includes progressive conditions such as emphysema and chronic bronchitis, which damage or block the airways and air sacs in the lungs. (medicalnewstoday.com)
This is an inherited condition in which the body produces thick, sticky mucus that can clog the lungs, airways, and pancreas. (medicalnewstoday.com)
Asthma is a condition that affects the airways- the small tubes that carry air in and out of the lungs. (comfortkeepers.ie)
Asthma is a chronic disease that affects the airways in the lungs, leading to recurring periods of wheezing, coughing, shortness of breath, and chest tightness. (corney-barrow.co.uk)
The assessment of a lung disorder often involves testing how much air the lungs can hold (lung volume) as well as how much and how quickly air can be exhaled (airflow). (msdmanuals.com)
Often, the tests are repeated after a person takes a drug that opens the airways of the lungs (bronchodilator). (msdmanuals.com)
The respiratory tract consists of the trachea, the right and left lungs, and two types of branching airways in each lung--bronchi and bronchioli. (cdc.gov)
The OSA is a chronic respiratory disorder, characterized by a collapse of the upper airway during sleep, resulting in reduced or no airflow to the lungs. (bvsalud.org)

Airway inflammation is associated with airway hyper-responsiveness, airflow limitation, and respiratory symptoms. (cdc.gov)
Objective: We sought to prospectively assess airflow limitation and airway inflammation in children 4 to 6 years old with episodic virus-induced wheeze. (manchester.ac.uk)
Conclusions: Mild episodes of wheeze in preschoolers are characterized by enhanced airway inflammation, reversible airflow limitation, and asthma-related symptoms. (manchester.ac.uk)
Airway inflammation leads to airway hyperreactivity, which causes the airways to narrow in response to various stimuli, including allergens, exercise , and cold air. (medicinenet.com)
Another test is exhaled nitric oxide (FeNO), which is a marker for airway inflammation, and this test may also be performed starting around 5 years of age. (medicinenet.com)
Macrolides are postulated to reduce airway inflammation via several mechanisms. (ersjournals.com)
Anti-inflammatory medicines work over time to ease inflammation, which reduces swelling of the airways and limits mucus production. (kidshealth.org)
Asthma is a chronic condition in which inflammation restricts the airways and causes wheezing, shortness of breath , and coughing. (medicalnewstoday.com)
CBD may have therapeutic potential for asthma treatment, reducing inflammation and airway hyperresponsiveness. (corney-barrow.co.uk)
These symptoms occur due to the narrowing and inflammation of the airways, making it challenging for air to flow freely. (corney-barrow.co.uk)
One of the primary mechanisms through which CBD may help with asthma is by reducing airway inflammation. (corney-barrow.co.uk)
By reducing inflammation in the airways, CBD may contribute to improved lung function and a decrease in asthma symptoms. (corney-barrow.co.uk)
Asthma is a chronic respiratory disease characterized by inflammation and narrowing of the airways, leading to symptoms such as wheezing, coughing, and shortness of breath. (corney-barrow.co.uk)
This immune response results in the release of inflammatory mediators and the recruitment of immune cells, leading to airway inflammation and constriction. (corney-barrow.co.uk)
Antigen presentation by the dendritic cell with the lymphocyte and cytokine response leading to airway inflammation and asthma symptoms. (medscape.com)
Fractional exhaled nitric oxide (FeNO) is a reliable, quantitative, non-invasive, simple, and safe biomarker for assessing airways inflammation in asthma. (bvsalud.org)

Sometimes, testing for airway hyperresponsiveness (methacholine or mannitol challenge) can help diagnose asthma, again in older children capable of performing proper technique. (medicinenet.com)
Asthma is a chronic inflammatory disorder of the airways characterized by variable airflow restriction and airway hyperresponsiveness. (aaaai.org)
Airway hyperresponsiveness or bronchial hyperreactivity in asthma is an exaggerated response to numerous exogenous and endogenous stimuli. (medscape.com)
The degree of airway hyperresponsiveness generally correlates with the clinical severity of asthma. (medscape.com)

These symptoms are usually associated with widespread but variable airflow limitation. (cdc.gov)

Sleep apnea occurs when the upper airway becomes completely or partially blocked, interrupting regular breathing for short periods of time -- which then wakes you up. (webmd.com)
Obstructive Sleep Apnea (OSA) occurs when the upper airway becomes blocked, leading to brief pauses in breathing during sleep. (sleepfoundation.org)

Even though experiments have shown that the airflow in the trachea and the upper branches of the lung is turbulent, the flow is taken to be laminar in most computer models. (ucy.ac.cy)
Normally the central airways (the trachea and bronchi) remain open when you breathe. (bidmc.org)
Tumors that grow in the windpipe (trachea) or airways (bronchi) can make it hard to breathe. (bidmc.org)
He explained how air flows through the respiratory system: inhaled air enters the body at the nose or mouth, passes through the larynx and trachea, and eventually enters the lung in airways that branch numerous times before reaching terminal bronchioles. (cdc.gov)
From the trachea, the airways divide progressively like branching trees in both symmetrical and asymmetrical fashion (see Exhibit 1-1). (cdc.gov)
Each branch of airways away from the trachea becomes smaller, but in turn the total area of cross-sectional airways actually increases. (cdc.gov)

Although the characteristics of the histopathologic changes present in subjects who die with status asthmaticus are well documented, the structural changes present in subjects with mild to moderately severe asthma are not well described and the inflammatory changes in the large airways of subjects with chronic airflow limitation (CAL) and asthma have not been compared. (nih.gov)
a stimulus that causes an increase in asthma symptoms and/or airflow limitation. (cdc.gov)
Underrecognized or undertreated airflow limitation may exacerbate the problem. (nih.gov)
The purpose of this study was to assess the prevalence and treatment of airflow limitation in a cohort of well-functioning older people. (nih.gov)
Airflow limitation was defined as a reduced forced expiratory volume in 1 second/forced vital capacity (FEV1/FVC) as determined by age-, sex-, and race-normalized values. (nih.gov)
Severity of airflow limitation was defined by American Thoracic Society criteria. (nih.gov)
Only 37.4% of participants with airflow limitation and 55.6% of participants with severe airflow limitation reported a diagnosis of lung disease. (nih.gov)
Only 20.5% of subjects with at least moderate airflow limitation had used a bronchodilator in the previous 2 weeks. (nih.gov)
Despite their good functional status, airflow limitation was present, and underrecognized, in a considerable proportion of our older population. (nih.gov)
Physicians caring for older people need to be more vigilant for both the presence, and the need for treatment, of airflow limitation. (nih.gov)
001). Airflow limitation at day 0 was reversible after bronchodilation. (manchester.ac.uk)
Despite this limitation, the ability to measure multiple airways relatively, noninvasively and repeatedly offers major potential advantages. (ersjournals.com)
Pack years characterized by airflow limitation that Sample smoking was calculated by multiplying is not fully reversible ( 3 ). (who.int)

The anterior nasal valve is located 1.5-2 cm posterior to the anterior nares and is the narrowest portion of the upper airway. (medscape.com)
Allergies or other nasal problems can cause the turbinates to swell and block airflow. (medlineplus.gov)
X-ray computed tomography (CT), acoustic rhinometry] as well as test kits for olfactory and trigeminal function, there is no spatially resolved method for assessment of nasal airflow, yet. (degruyter.com)
The current gold standard in the assessment of nasal airflow is the anterior rhinomanometry (RMM). (degruyter.com)
Therefore, utilization of computational fluid dynamics (CFD) for assessment of nasal airflow might be an essential step toward better understanding of the nose's function as well as treatment of impaired nasal breathing. (degruyter.com)
However, even though substantial progress was made in the understanding of nasal airflow using CFD as well as in-vitro experiments (excellently summarized in [ 8 ]), it is of utmost importance to validate CFD against the current gold standard RMM to ensure a good acceptance of this method in a clinical setting. (degruyter.com)
Continuous Positive Airway Pressure devices provide a gentle and unobstructed breathing by delivering a steady constant pressure of air through a hose which is connected to a nasal mask, nasal pillow or a full face mask. (medicaldevice-network.com)
Interface (nasal or full face mask, nasal pillows, or less commonly a lip-seal mouthpiece) provides the connection to the user's airway, and hose connects the flow generator to the interface. (medicaldevice-network.com)
Physiological consequences associated with eosinophil-driven remodeling include impaired lung function and reduced bronchodilator reversibility in asthma, and obstructed airflow in chronic rhinosinusitis with nasal polyps. (lu.se)
This review provides an overview of tissue remodeling in both health and airway disease with a particular focus on eosinophilic asthma and chronic rhinosinusitis with nasal polyps, as well as the role of eosinophils in these processes and the implications for therapeutic interventions. (lu.se)
Hydrogen sulfide (H2S) is a naturally occurring toxic gas and colleagues (2002) used the nasal airflow model developed found in petroleum, natural gas, and volcanic and sulfur spring by Kimbell et al. (cdc.gov)
These simula- tions showed a good correlation between areas of high flux on treatment, pulp and paper processing, and petroleum and airway walls with olfactory epithelial responses in the rat nasal natural gas drilling and refining operations (ATSDR, 1999). (cdc.gov)

The magnitude of distal airway dysfunction was correlated with WTC dust exposure and with severity of respiratory symptoms. (cdc.gov)
Reactivity in distal airways was a mechanism for development of respiratory symptoms. (cdc.gov)
Studies confirmed a dose response relationship between small airway dysfunction to both magnitude of WTC dust expose, severity of symptoms and reactivity in small airways. (cdc.gov)
Asthma symptoms appear when the airways constrict (become narrower) during exercise. (clevelandclinic.org)
That's because cold, dry air can constrict the airways and trigger symptoms of asthma. (clevelandclinic.org)
In asthma, the airways are always a little inflamed (irritated and swollen), even when a person has no symptoms. (kidshealth.org)
Bronchodilators work right away to relax the muscles around the airways and open them, providing quick relief of symptoms. (kidshealth.org)
Our Complex Airway Program treats patients with a variety of disorders that affect breathing and may cause wheezing, shortness of breath, and other symptoms. (bidmc.org)
Given the contribution of airway remodeling to the development and persistence of symptoms in airways disease, targeting remodeling is an important. (lu.se)

Obstructive sleep apnea happens when your upper airway becomes blocked many times while you sleep, reducing or completely stopping airflow. (nih.gov)
It happens when your upper airway becomes blocked and airflow is reduced or stops. (medlineplus.gov)

Asthma is a chronic inflammatory disease of the airways which is often reversible, either spontaneously or through treatment. (bvsalud.org)

Continuous positive airway pressure (CPAP) machines are devices that can help people with sleep apnea breathe better. (medicalnewstoday.com)
Continuous Positive Airway Pressure (CPAP) devices, Bi-level Positive Airway Pressure (BPAP) devices, Automatic self-adjusting Positive Airway Pressure (APAP) devices are covered under this segment. (medicaldevice-network.com)
Common sleep apnea treatments include using breathing devices, such as continuous positive airway pressure (CPAP) machines. (medlineplus.gov)

These effects include reduced airway mucus secretion 17 and anti-inflammatory properties, including decreased airway neutrophil accumulation through a reduction in expression of pro-inflammatory cytokines, e.g. interleukin (IL)-8, and adhesion molecule production, e.g. macrophage adhesion molecule-1 18 - 20 . (ersjournals.com)

Exercise-induced asthma, or exercise-induced bronchoconstriction (EIB), happens when airways get smaller during exercise. (clevelandclinic.org)

BACKGROUND Associations have been found between a large head size at birth and atopy, and between low birth weight and obstructive airways disease. (bmj.com)
A study was undertaken of people born around the time of the Dutch famine in 1944-5 to determine the effects of maternal malnutrition during specific periods of gestation on the prevalence of obstructive airways disease and atopy. (bmj.com)
The prevalence of obstructive airways disease was increased in people exposed to famine in mid gestation (odds ratio adjusted for sex 1.7, 95% confidence interval (CI) 1.1 to 2.6) and tended to be higher in those exposed in early gestation (odds ratio 1.5, 95% CI 0.9 to 2.6). (bmj.com)
CONCLUSIONS The observed increase in the prevalence of obstructive airways disease in people exposed to famine in mid and early gestation was not parallelled by effects on IgE concentrations or lung function. (bmj.com)
A number of studies have shown associations between head size of newborn babies and atopy, and between birth weight and obstructive airways disease. (bmj.com)
4 Lower body weight at birth was shown to be associated with reduced forced expiratory volume and vital lung capacity, 5-7 with an increased risk for asthma, 8-13 as well as with increased death rates from chronic obstructive airways disease. (bmj.com)
It is therefore likely that increased concentrations of IgE and obstructive airways disease have origins in utero. (bmj.com)
What is less clear is the evidence for a role of macrolides in the treatment of other chronic inflammatory airway diseases, e.g. cystic fibrosis, bronchiectasis, asthma, obliterative bronchiolitis, chronic obstructive pulmonary disease (COPD) and chronic rhinosinusitis. (ersjournals.com)
The studies build upon prior histologic and functional evidence for distal airway abnormalities as a manifestation of obstructive lung diseases. (cdc.gov)
Anything that could narrow your airway such as obesity , large tonsils, or changes in your hormone levels can increase your risk for obstructive sleep apnea. (nih.gov)
RÉSUMÉ La présente étude transversale a été conduite dans le but d'estimer la prévalence de la bronchopneumopathie chronique obstructive (BPCO) et d'identifier ses déterminants dans un échantillon de commodité de 325 fumeurs adultes à Bagdad (Iraq) en 2014. (who.int)

Wheezing is a high-pitched whistling sound produced by turbulent airflow through narrowed airways. (medicinenet.com)

According to the EPA, ozone causes muscles in the airway to constrict, leading to wheezing and shortness of breath. (uh.edu)

The patient's airways were moisturized by water vapor from a humidification system without a filter that allowed airflow between room air and the patient's airways. (cdc.gov)
There will be a constant amount of pressurized air that passes through the hose into the patient mask and the pressurized air opens the patient's airway and eliminating the obstructed airway caused by apneas. (medicaldevice-network.com)

Nitric oxide has different roles in asthma as both an endogenous modulator of airway function and a pro-inflammatory mediator. (bvsalud.org)

The chance finding that erythromycin treatment radically improved the clinical outcome of a patient with diffuse panbronchiolitis rekindled interest in the use of macrolides as a potential treatment in other inflammatory airway disorders, e.g. cystic fibrosis 8 . (ersjournals.com)

Asthma also causes an associated increase in airway responsiveness to a variety of stimuli. (cdc.gov)
Asthma Asthma is a condition in which the airways narrow-usually reversibly-in response to certain stimuli. (msdmanuals.com)

If they relax too much, they narrow or block your airway. (healthlinkbc.ca)
Extra tissue in your neck can block your airway and make it harder to breathe at night. (whattoexpect.com)

However, both the virus infection and MV disrupt the balance between secretion and elimination of airway mucus and lead to mucus accumulation in the lung. (techscience.com)

Understanding transport and deposition of inhaled particles in the human airways plays a crucial role in the targeted therapy of pulmonary diseases, and the administration of inhaled medicines. (ucy.ac.cy)
Only few recently published papers have looked at the turbulent transport of air in the human airways. (ucy.ac.cy)
The aim of the study was to identify the receptor involved in prostaglandin E 2 (PGE 2 )-induced relaxation in guinea pig, murine, monkey, rat and human airways in vitro . (bmj.com)
In contrast to previous publications, a role for the EP 4 receptor in relaxant responses in human airways in vitro was found. (bmj.com)

In younger children who cannot perform the proper technique for lung function testing, impulse oscillometry is used to measure airway resistance. (medicinenet.com)
The effect is driven by a ventilation reduction due to an increased airflow resistance. (researchgate.net)
The airflow resistance provided by the airways during breathing is essential for good pulmonary function. (medscape.com)
This helps to evaluate the airflow resistance offered by each cavity. (medscape.com)
In order to improve the current ventilation model, airways resistance of the mine was determined and simulated in a modified model using VentSim TM software. (scirp.org)
An average total airways resistance of 0.32027 Ns 2 /m 8 has been achieved for Rosh Pinah mine. (scirp.org)
Furthermore, airways physical characteristics such as length, area and roughness as well as obstacles ( i.e. machines, conveyors or other equipment) determine the airflow characteristics and the resistance an airway presents to airflow. (scirp.org)
This resistance is definitely a function of the friction factor ( k ) which collectively generates resistance to airflow. (scirp.org)
Thus, the challenge with these values without being tie-up with airway resistance provides insufficient information to address airflow distribution challenges [7]. (scirp.org)
As a result, airflow resistance decreases as air moves from the large airways to the smaller bronchioli. (cdc.gov)

These are chronic bronchitis, emphysema and small airway disease. (medindia.net)
A 'Small Airway Disease Syndrome' provides a mechanism for respiratory disease following WTC dust exposure even in subjects with normal screening spirometry. (cdc.gov)
Longitudinal data demonstrated improvement of small airway function in subjects with acute response to bronchodilator at baseline. (cdc.gov)
The presence of small airway abnormalities suggests a potential target for treatment, particularly for subjects who remain symptomatic despite usual medical care. (cdc.gov)

The airways of subjects with CAL contained significantly more inflammatory cells than the control subjects. (nih.gov)
A chronic inflammatory disorder of the airways. (cdc.gov)
Diffuse panbronchiolitis is a progressive inflammatory disorder of lung airways found almost exclusively in Japan. (ersjournals.com)
Asthma results from complex interactions among inflammatory cells, their mediators, airway epithelium and smooth muscle, and the nervous system. (medscape.com)

The muscles around the airways tighten, making them even narrower, which makes it very hard to breathe. (kidshealth.org)
A T-tube is an airway stent shaped liked the letter "T." This tube provides support for the airways while enabling someone to breathe through a tracheostomy. (bidmc.org)
With OSA, the upper airway collapses, obstructing air flow, even as the person makes an effort to breathe. (ihs.gov)
As you work harder to breathe, the lining of your airway can swell too, constricting airflow. (whattoexpect.com)
With so little space in the airways, it becomes difficult for air to move in and out and the chest must work much harder to breathe. (comfortkeepers.ie)
Bronchodilators are medications that relax and widen the airways, making it easier to breathe. (corney-barrow.co.uk)

If this area collapses, the airway becomes narrow or blocked. (healthlinkbc.ca)
After a person with OSA falls asleep, their airway intermittently narrows or collapses Trusted Source UpToDate More than 2 million healthcare providers around the world choose UpToDate to help make appropriate care decisions and drive better health outcomes. (sleepfoundation.org)

Varying degrees of mononuclear cell and eosinophil infiltration, mucus hypersecretion, desquamation of the epithelium, smooth muscle hyperplasia, and airway remodeling are present. (medscape.com)

The narrower the airway is, the more the tissue vibrates, and the louder the snoring is. (healthlinkbc.ca)

Such studies have provided valuable information on the processes and consequences of airway remodelling, but require access to surgical or autopsy samples of the airways and are necessarily cross-sectional in design. (ersjournals.com)
The air flow velocity decreases as air moves into the more distant bronchi, because the cross-sectional area of the branched bronchi is greater than that of the parent airways. (cdc.gov)

The proposed studies are based on the concept that spirometry may identify airway injury as a reduction in lung volume or air flow, however, spirometry can often be normal even in symptomatic patients, particularly when injury is located in the distal airways. (cdc.gov)
Certain foremen at petitioner company's coal mine were suspended for falsifying records to show no reduction in airflow at the mine when, in fact, the airflow had been substantially reduced because of the collapse of a ventilation structure. (justia.com)

In case of chronic bilateral paralysis, conventional treatments focus on permanently opening the airway through surgical resection, leaving the patient with no chance of ever speaking normally again. (sciencedaily.com)
This is an important finding since conventional surgical treatments for bilateral paralysis usually sacrifice voice production to create a larger airway," Rainey said. (sciencedaily.com)
Treatments offered by BIDMC's Complex Airway Program include surgical and endoscopic procedures. (bidmc.org)
Areas for future research are also noted, to help improve our understanding of the homeostatic and pathological roles of eosinophils in tissue remodeling, which should aid the development of targeted and effective treatments for eosinophilic diseases of the airways. (lu.se)

Surgical methods for airway management rely on making a surgical incision below the glottis in order to achieve direct access to the lower respiratory tract, bypassing the upper respiratory tract. (wikipedia.org)
Surgical airway management is often performed as a last resort in cases where orotracheal and nasotracheal intubation are impossible or contraindicated. (wikipedia.org)
Surgical airway management is also used when a person will need a mechanical ventilator for a longer period. (wikipedia.org)
Surgical airway management is a primary consideration in anaesthesia, emergency medicine and intensive care medicine. (wikipedia.org)
Surgical methods for airway management include cricothyrotomy and tracheostomy Asclepiades of Bithynia is credited with being the first person who proposed bronchotomy as a surgical procedure, though he never attempted to perform one. (wikipedia.org)
We have particular expertise in the endoscopic and surgical management of complex benign airway disorders such as tracheal and bronchial stenosis. (bidmc.org)
We have significant experience in performing surgical procedures to treat complex airway conditions. (bidmc.org)

Technical advances in computed tomography allow the assessment of airway wall dimensions, and are ideally suited for the noninvasive investigation of the pathogenesis of airway wall remodelling and the evaluation of new therapeutic interventions. (ersjournals.com)
Noninvasive methods are required to further investigate the pathogenesis of airway wall remodelling, to assess changes over time, and to allow the assessment of new therapeutic interventions designed to attenuate or reverse these structural changes. (ersjournals.com)
To enhance characterization of airway injury in subjects enrolled in the Bellevue Hospital WTC EHC by evaluating spirometry and assessment of distal airway function utilizing oscillometry. (cdc.gov)
Thus, characterization of distal airway injury in addition to standard spirometry is crucial for diagnosis, determination of optimal medical therapy and assessment of changes over time. (cdc.gov)

While histology has provided valuable insights into the structure of airway wall remodelling, this technique is invasive and does not allow the longitudinal analysis of airway wall dimensions. (ersjournals.com)

Distal airway dysfunction was evident in the majority of subjects even when spirometry remained within normal limits. (cdc.gov)
Distal airway dysfunction provided a mechanism for the restrictive pattern seen in selected patients on spirometry (when chest radiograph was normal). (cdc.gov)
Moreover, identification of distal airway injury may be an early marker of disease that may be progressive but may also be amenable to therapy. (cdc.gov)
These data have broad implications that should be considered during other catastrophes where lung injury is a likely outcome and in airway diseases, such as asthma and COPD, where pathologic involvement of distal airways is common, but where the physiologic phenotype has been elusive. (cdc.gov)
This panelist noted that clearance processes in the conductive airways differ from those in the airways distal to the terminal bronchioles. (cdc.gov)

Introduction: Chronic respiratory diseases (CRDs) are diseases of the lung airways and parenchyma. (bvsalud.org)

Exercise-induced asthma, or sports-induced asthma, happens when airways constrict during physical activity. (clevelandclinic.org)

Health conditions that affect how your brain controls your airway and chest muscles can cause central sleep apnea. (nih.gov)
Sleep apnea is a chronic condition that occurs when the airways collapse during sleep, temporarily blocking airflow and causing involuntary moments of breathlessness or shallow breathing. (whattoexpect.com)
Apnea is often accompanied by a pattern of heavy snoring, which gets louder just before it quiets completely while the airflow stops. (whattoexpect.com)
Positive airway pressure is a method of respiratory ventilation used primarily in the treatment of sleep apnea. (medicaldevice-network.com)

In this study, airway resistances were determined for five levels at Rosh-Pinah underground zinc mine using continuous mining machines and the sub-level open stoping method. (scirp.org)
In 2015, continuous monitoring of airborne fungi and multilocus variable-number tandem-repeat analysis identified the source of Aspergillus fumigatus as the airway of a patient. (cdc.gov)
Continuous monitoring of indoor airborne fungal contamination with electrostatic dustfall collectors (EDCs) ( 2 - 5 ) demonstrated that the airway of a patient was the point source of airborne A. fumigatus contamination in the ICU. (cdc.gov)

This mucus clearance mechanism efficiently removes particles that deposited on the conductive airways, typically within about 1 day following exposure. (cdc.gov)

Bronchoconstriction happens to people who have asthma , but asthma medicines can help relax the muscles in the airways and make breathing easier. (teenshealth.org)
When the stimulus is discontinued, the muscles passively relax back to their midline position to allow normal voice production and airway protection. (sciencedaily.com)
They are a type of medication that works to relax the muscles in the airways allowing them to widen and improve air flow. (copdfoundation.org)

This narrows the airways so there's less space inside for air to get through. (teenshealth.org)

Results indicate that the upper airway geometry produces turbulence in the flow and the deposition of particles is mainly affected by the particle size and Stokes number. (ucy.ac.cy)

The original CT scans designed to assess airway structure involved thin-slice images (typically 1-2 mm axial), which were acquired using a "stop and shoot" protocol and were reconstructed using an edge-enhancing algorithm, known as the high-resolution CT (HRCT) protocol. (ersjournals.com)

In bronchoconstriction, the muscles surrounding the airways contract, or tighten. (teenshealth.org)

Asthma (pronounced: AZ-muh) is a condition that affects the airways. (kidshealth.org)

Anatomy41

Organisms7

Diseases47

Chemicals and Drugs46

Analytical, Diagnostic and Therapeutic Techniques and Equipment74

Psychiatry and Psychology4

Phenomena and Processes47

Disciplines and Occupations3

Technology, Industry, Agriculture5

Information Science3

Health Care25

Obstruction15

Lungs22

Inflammation16

Hyperresponsiveness4

Variable airflow1

Occurs when the upper airway becomes2

Trachea6

Limitation13

Nasal12

Symptoms9

Upper airway becomes blocked2

Reversible1

CPAP3

Mucus secretion1

Induced bronchoconstriction1

Obstructive11

Turbulent airflow1

Shortness of bre1

Patient's2

Nitric oxide1

Cystic fibrosis1

Stimuli2

Block your airway2

Secretion1

Human airways4

Resistance10

Small airway4

Inflammatory4

Breathe6

Collapses2

Epithelium1

Narrower1

Cross-sectional2

Reduction2

Treatments4

Surgical7

Assessment4

Longitudinal1

Distal5

Lung airways1

Constrict1

Apnea4

Continuous3

Exposure1

Relax3

Narrows1

Particle1

Assess1

Tighten1

Affects1