Chest Wall Oscillation
Pulmonary Disease, Chronic Obstructive
Mucociliary Clearance
Asthma
Bronchodilator Agents
Forced Expiratory Volume
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.
Lung
Drainage, Postural
A rehabilitation therapy for removal of copious mucus secretion from the lung of patients with diseases such as CHRONIC BRONCHITIS; BRONCHIECTASIS; PULMONARY ABSCESS; or CYSTIC FIBROSIS. The patient's head is placed in a downward incline (so the TRACHEA is inferior to the affected area) for 15- to 20-minute sessions.
Cough
Percussion
Respiratory Function Tests
Directories as Topic
Plasticizers
Diethylhexyl Phthalate
Equipment and Supplies
Device Approval
Process that is gone through in order for a device to receive approval by a government regulatory agency. This includes any required preclinical or clinical testing, review, submission, and evaluation of the applications and test results, and post-marketing surveillance. It is not restricted to FDA.
Medical Device Legislation
Inventors
Mouth Protectors
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Property, such as patents, trademarks, and copyright, that results from creative effort. The Patent and Copyright Clause (Art. 1, Sec. 8, cl. 8) of the United States Constitution provides for promoting the progress of science and useful arts by securing for limited times to authors and inventors, the exclusive right to their respective writings and discoveries. (From Black's Law Dictionary, 5th ed, p1014)
Golgi Apparatus
A stack of flattened vesicles that functions in posttranslational processing and sorting of proteins, receiving them from the rough ENDOPLASMIC RETICULUM and directing them to secretory vesicles, LYSOSOMES, or the CELL MEMBRANE. The movement of proteins takes place by transfer vesicles that bud off from the rough endoplasmic reticulum or Golgi apparatus and fuse with the Golgi, lysosomes or cell membrane. (From Glick, Glossary of Biochemistry and Molecular Biology, 1990)
Foramen Ovale, Patent
Pressure
Blood Flow Velocity
Head
Brachytherapy
Iridium Radioisotopes
Prostate
Scintillation Counting
Search Engine
Intermittent Positive-Pressure Breathing
Ventilators, Negative-Pressure
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").
Positive-Pressure Respiration
Intermittent Positive-Pressure Ventilation
Respiratory Therapy
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.
Respiratory Therapy Department, Hospital
Ralstonia pickettii
Respiratory Care Units
Mustelidae
Intracranial Aneurysm
Abnormal outpouching in the wall of intracranial blood vessels. Most common are the saccular (berry) aneurysms located at branch points in CIRCLE OF WILLIS at the base of the brain. Vessel rupture results in SUBARACHNOID HEMORRHAGE or INTRACRANIAL HEMORRHAGES. Giant aneurysms (>2.5 cm in diameter) may compress adjacent structures, including the OCULOMOTOR NERVE. (From Adams et al., Principles of Neurology, 6th ed, p841)
Performance comparison of two oscillating positive expiratory pressure devices: Acapella versus Flutter. (1/46)
BACKGROUND: Oscillatory positive expiratory pressure (PEP) with the Flutter device facilitates secretion removal. In the Flutter a steel ball vibrates inside a cone, causing air flow vibration. A new device, the Acapella, uses a counterweighted plug and magnet to create air flow oscillation. The Acapella comes in 2 models: one for patients with expiratory flow > or = 15 L/min and one for < or = 15 L/min. We hypothesized that the Acapella and Flutter would produce similar mean PEP, oscillatory pressure amplitude, and frequency over a clinically relevant range of flows. METHODS: We measured oscillatory amplitude, PEP, and frequency. Values for frequency, peak, trough, and mean pressure were recorded automatically every 3 seconds at flows of 5, 10, 15, 20, 25, and 30 L/min. The pressure waveform for 1 second was also graphically displayed and recorded. The devices were adjusted to give low, medium, and high mean expiratory pressure (Flutter angle at 0, 20, and 40 degrees; Acapella by dial setting). Data were analyzed by 2-way repeated measures analysis of variance, and differences were considered significant when p was < 0.05. RESULTS: There were statistically significant differences between the devices for mean pressure, pressure amplitude, and frequency, for all experimental conditions. However, the differences were relatively small and may not be clinically important. Both devices produced similar pressure waveforms at the medium flows. At 5 L/min the Acapella produced a more stable waveform, with a lower frequency, higher amplitude, and a slightly wider range of PEP than the Flutter. CONCLUSIONS: Acapella and Flutter have similar performance characteristics. Acapella's performance is not gravity-dependent (ie, dependent on device orientation) and may be easier to use for some patients, particularly at low expiratory flows. (+info)Pulmonary hyperinflation and respiratory distress following solvent aspiration in a patient with asthma: expectoration of bronchial casts and clinical improvement with high-frequency chest wall oscillation. (2/46)
An 18-year-old student with a history of asthma accidentally inhaled organic solvent during a class, with immediate cough and dyspnea that worsened over several hours. He presented in severe respiratory distress, with hypoxemia and marked pulmonary hyperinflation. Administration of inhaled bronchodilator was ineffective because of agitation, and the patient could not be positioned for chest physiotherapy to treat presumed widespread mucus plugging. High-frequency chest wall oscillation (HFCWO) in the sitting position initially caused increased distress but was subsequently tolerated when noninvasive positive-pressure ventilation (NPPV) via nasal mask was initiated. Almost immediately, the patient began expectorating bronchial mucus casts, with concomitant clinical improvement. Endotracheal intubation was avoided, and with aggressive pharmacologic treatment for acute severe asthma and continuation of intermittent HFCWO-NPPV, the patient made a full recovery over the next several days. This case suggests that the combination of HFCWO and NPPV may be helpful in the presence of mucus plugging as a complication of acute inhalation injury or acute severe asthma. (+info)Cariporide enables hemodynamically more effective chest compression by leftward shift of its flow-depth relationship. (3/46)
When given during closed-chest resuscitation, cariporide (4-isopropyl-methylsulfonylbenzoyl-guanidine methanesulfonate; a selective inhibitor of the Na(+)/H(+) exchanger isoform-1) enables generation of viable perfusion pressures with less depth of compression. We hypothesized that this effect results from greater blood flows generated for a given depth of compression. Two series of 14 rats each underwent 10 min of untreated ventricular fibrillation followed by 8 min of chest compression before defibrillation was attempted. Compression depth was adjusted to maintain an aortic diastolic pressure (ADP) between 26 and 28 mmHg in the first series and between 36 and 38 mmHg in the second series. Within each series, rats were randomized to receive cariporide (3 mg/kg) or NaCl (0.9%; control) before chest compression was started. Blood flow was measured using 15-mum fluorescent microspheres. Less depth of compression was required to maintain the target ADP when cariporide was present in both series 1 (13.6 +/- 1.2 vs. 16.6 +/- 1.2 mm; P < 0.001) and series 2 (15.3 +/- 1.0 vs. 18.9 +/- 1.5 mm; P < 0.001). Despite less compression depth, the cardiac index in cariporide-treated rats was comparable to control rats in series 1 (11.1 +/- 0.7 vs. 11.3 +/- 1.4 ml.min(-1).kg(-1); P = not significant) but higher in series 2 (15.5 +/- 2.3 vs. 9.9 +/- 1.4 ml.min(-1).kg(-1); P < 0.05). Increases in compression depth (from series 1 to series 2) increased myocardial, cerebral, and adrenal blood flow in cariporide-treated rats. We conclude that cariporide enhances the efficacy of closed-chest resuscitation by leftward shift of the flow-depth relationship. (+info)Investigation of non-uniform airflow signal oscillation during high frequency chest compression. (4/46)
BACKGROUND: High frequency chest compression (HFCC) is a useful and popular therapy for clearing bronchial airways of excessive or thicker mucus. Our observation of respiratory airflow of a subject during use of HFCC showed the airflow oscillation by HFCC was strongly influenced by the nonlinearity of the respiratory system. We used a computational model-based approach to analyse the respiratory airflow during use of HFCC. METHODS: The computational model, which is based on previous physiological studies and represented by an electrical circuit analogue, was used for simulation of in vivo protocol that shows the nonlinearity of the respiratory system. Besides, airflow was measured during use of HFCC. We compared the simulation results to either the measured data or the previous research, to understand and explain the observations. RESULTS AND DISCUSSION: We could observe two important phenomena during respiration pertaining to the airflow signal oscillation generated by HFCC. The amplitudes of HFCC airflow signals varied depending on spontaneous airflow signals. We used the simulation results to investigate how the nonlinearity of airway resistance, lung capacitance, and inertance of air characterized the respiratory airflow. The simulation results indicated that lung capacitance or the inertance of air is also not a factor in the non-uniformity of HFCC airflow signals. Although not perfect, our circuit analogue model allows us to effectively simulate the nonlinear characteristics of the respiratory system. CONCLUSION: We found that the amplitudes of HFCC airflow signals behave as a function of spontaneous airflow signals. This is due to the nonlinearity of the respiratory system, particularly variations in airway resistance. (+info)Inspiratory oscillatory flow with a portable ventilator: a bench study. (5/46)
INTRODUCTION: We observed an oscillatory flow while ventilating critically ill patients with the Drager 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. METHODS: An Oxylog 3000 intensive care unit ventilator and a Drager Medical Evita-4 NeoFlow intensive care unit ventilator were connected to a Drager 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 respirator settings to detect thresholds for the occurrence of the phenomenon and methods to overcome it. RESULTS: Under conditions with high resistance in pressure-regulated ventilation with the Oxylog 3000, an oscillatory flow during inspiration produced rapid changes of the airway pressure. The phenomenon resulted in a jerky inspiration with high peak airway pressures, higher than those set on the ventilator. Reducing the inspiratory flow velocity was effective to terminate the phenomenon, but resulted in reduced tidal volumes. CONCLUSION: Oscillatory flow with potentially harmful effects may occur during ventilation with the Drager Oxylog 3000, especially in conditions with high resistance such as small airways in children (endotracheal tube internal diameter <6 mm) or severe obstructive lung diseases or airway diseases in adult patients. (+info)Physiologic evidence for high-frequency chest wall oscillation and positive expiratory pressure breathing in hospitalized subjects with cystic fibrosis. (6/46)
BACKGROUND AND PURPOSE: This investigation identified ventilation distribution, gas mixing, lung function, and arterial blood oxyhemoglobin saturation (SpO2) physiologic responses to 2 independent airway clearance treatments, high-frequency chest wall oscillation (HFCWO) and low positive expiratory pressure (PEP) breathing, for subjects who had cystic fibrosis (CF) and who were hospitalized during acute and subacute phases of a pulmonary exacerbation. SUBJECTS: Fifteen subjects with moderate to severe CF were included in this study. METHODS: Subjects performed single-breath inert gas tests and spirometry before and immediately after HFCWO and PEP breathing at admission and discharge. Arterial blood oxyhemoglobin saturation was monitored throughout each treatment. RESULTS: At admission and discharge, PEP breathing increased SpO2 during treatment, whereas HFCWO decreased SpO2 during treatment. Ventilation distribution, gas mixing, and lung function improved after HFCWO or PEP breathing. DISCUSSION AND CONCLUSION: High-frequency chest wall oscillation and PEP breathing are similarly efficacious in improving ventilation distribution, gas mixing, and pulmonary function in hospitalized people with CF. Because SpO2 decreases during HFCWO, people who have moderate to severe CF and who use HFCWO should have SpO2 monitored during an acute exacerbation. (+info)Physiological effects of vibration in subjects with cystic fibrosis. (7/46)
The physiological mechanisms by which vibration and other physiotherapy interventions may clear secretions in subjects with cystic fibrosis are unknown. The main aim of this study was to compare the expiratory flow rates and frequencies of airflow oscillation of vibration to those of Acapella(R), Flutter(R), positive expiratory pressure and percussion. Respiratory flow rates were measured during interventions, the order of which was randomised. The oscillation of the airflow of the interventions was determined by frequency spectral analysis. In 18 young adult subjects with cystic fibrosis, the mean peak expiratory flow rate of vibration was greater than Flutter(R), percussion, Acapella(R) and positive expiratory pressure. The mean+/-sd of the oscillation of the airflow of vibration (8.4+/-0.4 Hz) was lower than Acapella(R) (13.5+/-1.7 Hz) and Flutter(R) (11.3+/-1.5 Hz) but similar to percussion (7.3+/-0.3 Hz). Theoretically, the higher peak expiratory flow rate of vibration compared to the other physiotherapy interventions may promote secretion clearance. In addition, the frequency of oscillation of vibration was within the range demonstrated to increase mucus transport. This study has provided some evidence for the physiological rationale for the use of vibration to aid secretion clearance. (+info)Immediate changes in blood-gas tensions during chest physiotherapy with positive expiratory pressure and oscillating positive expiratory pressure in patients with cystic fibrosis. (8/46)
OBJECTIVE: To assess and compare immediate effects of chest physiotherapy with positive expiratory pressure (PEP) versus oscillating PEP on transcutaneously measured blood-gas tensions in patients with cystic fibrosis. METHODS: Fifteen patients (mean age 12.5 y, range 6.9-21.5 y) participated. The treatments were randomized and performed on 2 separate occasions, 8 weeks apart. Spirometry was conducted before and after each treatment. We transcutaneously measured oxygen tension (P(tO2). RESULTS: There were no changes in spirometry values. During PEP, different trends in blood-gas tension were seen, and there were no consistent changes. During oscillating PEP, P(tO2) increased and P(tCO2) decreased. During oscillating PEP, P(tCO2) was lower and the intra-individual change in P(tCO2) was more pronounced than during PEP. The results obtained immediately after oscillating PEP showed a higher P(tO2) and a lower P(tCO2) than with PEP. CONCLUSION: PEP and oscillating PEP can both cause transitory effects on blood gases in patients with cystic fibrosis. However, oscillating PEP alters blood-gas tensions more than does PEP, and hyperventilation during oscillating PEP may reduce treatment time. (+info)
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Chest physiotherapy improves lung aeration in hypersecretive critically ill patients: a pilot randomized physiological study |...
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Plastic bronchitis
High-frequency chest wall oscillation can also be used to vibrate the chest wall at a high frequency to try to loosen and thin ... expectoration of bronchial casts and clinical improvement with high-frequency chest wall oscillation". Respir Care. 49 (11): ... "Peripheral mucociliary clearance with high-frequency chest wall compression". J Appl Physiol. 58 (4): 1157-63. doi:10.1152/ ... Simple chest x-rays may reveal collapse due to airway obstruction. The contralateral lung may be hyperinflated. Casts can be ...
Bronchiectasis
... such as high-frequency chest wall oscillation. Many airway clearance techniques and devices exist. The choice of a technique or ... CHEST Expert Panel Report". Chest. 153 (4): 986-993. doi:10.1016/j.chest.2018.01.014. ISSN 1931-3543. PMC 6689075. PMID ... A rare occurrence?". Chest. 104 (5): 1384-86. doi:10.1378/chest.104.5.1384. PMID 8222792. S2CID 72998738. Martínez-García, ... Flude, Lizzie J.; Agent, Penny; Bilton, Diana (June 2012). "Chest physiotherapy techniques in bronchiectasis". Clinics in Chest ...
Warren Warwick
Warren J. Warwick was an American pediatrician, notable for co-inventing a chest wall oscillation device called the Vest Airway ...
Colton Underwood
In January 2018, the foundation began the Legacy Project, with the goal of delivering AffloVests, chest wall oscillation ...
Antonio Pedotti
Cala S.J., Kenyon C.M., Ferrigno G., Carnevali P., Aliverti A., Pedotti A., Macklem P.T., Rochester D.F., "Chest wall and lung ... He also contributed in the improvement of forced oscillation technique (FOT) for evaluating the respiratory system resistance ... "Measurement of chest wall volume changes by optoelectronic plethysmography (OEP) in newborns during CPAP". re.public.polimi.it ... which is a method to evaluate ventilation through an external measurement of the chest wall surface motion. ...
Airway clearance therapy
... and thus imposes high frequency chest wall oscillations that are transferred to the lungs. These oscillations thin airway mucus ... Chest wall oscillation is a passive system that is not dependent on effort from the user. It involves the use of a special vest ... Chest percussion can be administered as a manual technique but can also be performed using specific devices that use chest wall ... Chest physiotherapy is a manual airway clearance therapy that uses chest percussion (clapping, and vibration), and postural ...
Chest wall oscillation
... is when devices are used in airway clearance therapy to clear excess mucus from lung airways (bronchi ... It is the original High Frequency Chest Wall Oscillation Device by Advanced Respiratory, Inc (ARI), formerly American ... It uses a compressor to inflate and deflate the vest rhythmically at timed intervals and thus imposes high frequency chest wall ... These oscillations thin thixotropic airway mucus, facilitating its removal by coughing. Delivery of air to the vest can be ...
Respiratory inductance plethysmography
Konno and Mead extensively evaluated a two-degrees-of-freedom model of chest wall motion, whereby ventilation could be derived ... area of the rib cage and abdomen increases altering the self-inductance of the coils and the frequency of their oscillation, ... is a method of evaluating pulmonary ventilation by measuring the movement of the chest and abdominal wall. Accurate measurement ... According to a paper by Konno and Mead "the chest can be looked upon as a system of two compartments with only one degree of ...
Cystic fibrosis
This "percussive effect" can be administered also through specific devices that use chest wall oscillation or intrapulmonary ... doi:10.1378/chest.125.1_suppl.1S. PMID 14734689. Warnock L, Gates A (December 2015). "Chest physiotherapy compared to no chest ... Fetal and maternal outcome". Chest. 118 (1): 85-91. doi:10.1378/chest.118.1.85. PMID 10893364. S2CID 32289370. Guimbellot J, ... Chest. 118 (4): 1059-62. doi:10.1378/chest.118.4.1059. PMID 11035677. Chen H, Ruan YC, Xu WM, Chen J, Chan HC (2012). " ...
Mechanical ventilation
Then, the airway pressure drops to zero, and the elastic recoil of the chest wall and lungs push the tidal volume - the breath- ... and a high-pressure oscillation pump in order to carry out biphasic cuirass ventilation.[citation needed] Its main use has been ... Chest. 97 (6): 1420-5. doi:10.1378/chest.97.6.1420. PMID 2347228. Brower RG, Matthay MA, Morris A, Schoenfeld D, Thompson BT, ... Chest. 99 (3): 630-6. doi:10.1378/chest.99.3.630. PMID 1899821. Retrieved 11 October 2016. Gilgoff, Irene S. (2001). Breath of ...
Kawasaki disease
Narrowing of the coronary artery, which occurs as a result of the healing process of the vessel wall, often leads to ... The main symptoms were shock, unrest, vomiting, and abdominal pain; chest pain was most common in older children. Most of these ... These associations are themselves modulated by seasonal and interannual events in the El Niño-Southern Oscillation in winds and ... Aneurysms are classified into small (internal diameter of vessel wall 8 mm). Saccular and fusiform aneurysms usually develop ...
Tuned mass damper
The oscillation frequency of the mass is tuned to be similar to the resonant frequency of the object they are mounted to. Tuned ... One Wall Centre in Vancouver - employs tuned liquid column dampers, a unique form of tuned mass damper at the time of their ... Statue of Unity in Gujarat, India - a 400-ton tuned mass damper located at the chest level of Sardar Patel statue. Tehran ... "Ares I Thrust Oscillation meetings conclude with encouraging data, changes". NASASpaceFlight.com. 2008-12-09. Retrieved 2010-02 ...
High-frequency ventilation
In HFJV exhalation is passive (depends on passive lung and chest-wall recoil) whereas in HFOV gas movement is caused by in-and- ... positive-oscillation/negative-oscillation ratio), fresh gas flow (called bias flow), and FiO2. Increases in continuous lung- ... Standiford TJ, Morganroth ML (December 1989). "High-frequency ventilation". Chest. 96 (6): 1380-9. doi:10.1378/chest.96.6.1380 ... Breaths per minute (f) f = H z ⋅ 60 s e c o n d s {\displaystyle f=Hz\cdot 60_{seconds}} Oscillation trough pressure is the ...
Singing
A sunken chest position will limit the capacity of the lungs, and a tense abdominal wall will inhibit the downward travel of ... Lucero, Jorge C. (1996). "Chest‐ and falsetto‐like oscillations in a two‐mass model of the vocal folds". The Journal of the ... However, the use of overly strong chest voice in the higher registers in an attempt to hit higher notes in the chest can lead ... Within other forms of singing, chest voice is often applied throughout the modal register. Chest timbre can add a wonderful ...
2019 Yorkshire Dales flooding
A treasure chest of £3 million was released to North Yorkshire County Council under the Bellwin scheme for the repair of the ... A huge surge of water was observed "..taking the [drystone] walls down, one by one, in the valley. It was unbelievable - they ... Most flooding events in Britain have been the result of a climactic condition known as the North Atlantic Oscillation (NAO-) ... "Walls destroyed in floods rebuilt by volunteers". BBC News. 20 October 2019. Retrieved 28 January 2020. Sedgwick, Phillip (7 ...
Vocal resonation
The chest is not an effective resonator, despite numerous voice books and teachers referring to "chest resonance". Although ... Three factors relating to the walls of a resonator will affect how it functions: the material it is made of, the thickness of ... the resonator to replicate its oscillations. Both types of resonance are at work in the human voice during speaking and singing ... chest) resonance to bright (head-nasal) resonance. We may call this spectrum a resonance track. In the lower range, the chest/ ...
Glossary of underwater diving terminology
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z wall diving Recreational scuba diving along the face of a near vertical ... NSS National Speleological Society nystagmus An oscillation of the eyes alternating a slow eye movement in one direction, and a ... pneumothorax Air or other breathing gas in the chest cavity, outside of the lung, particularly between the pulmonary pleurae, ... penetration line percolation Cave diving: Bubbles making their way to the walls and the ceiling of the cave and dislodging silt ...
Management of Parkinson's disease
... deep diaphragmatic breathing exercises are beneficial for improving chest wall mobility and vital capacity. Exercise may ... may be helpful in controlling oscillations in some patients. Dietary protein restriction and the use of selegiline ...
Las Meninas
On his chest is the red cross of the Order of Santiago, which he did not receive until 1659, three years after the painting was ... The wall to the right is hung with a grid of eight smaller paintings, visible mainly as frames owing to their angle from the ... at the neutral centre of his oscillation. His dark torso and bright face are half-way between the visible and the invisible: ... But in fact they alarm her almost as much as they alarm us." The back wall of the room, which is in shadow, is hung with rows ...
Edward L. Hoffman
Harris' lifesaving chute was mounted on the wall of McCook's parachute lab where the Dayton Herald's aviation editor Maurice ... Together they were awarded a patient to reduce parachute oscillations and they successfully tested a 60 foot diameter ... with a backup chute strapped to his chest) and manually pulled the ripcord fully deploying his chute at 1000 feet. Irvin became ...
Steam engine
The valve chest for each of the cylinders is to the left of the corresponding cylinder.[citation needed] Land-based steam ... Also, there was a tendency for oscillation whenever there was a speed change. As a consequence, engines equipped only with this ... However, the thermal expansion gradient uniflow engines produce along the cylinder wall gives practical difficulties.[citation ... These events are controlled by valves often working inside a steam chest adjacent to the cylinder; the valves distribute the ...
Prehistory of Transylvania
They had wattle walls pasted with clay mixed with straw. The roof was double sloping, and the floor was made of trodden clay. ... where the dead were laid on their backs hands across their chests or abdomens or along their bodies; the bodies were oriented ... The populations evolving at the onset of the Bölling oscillation (approximately 12,000 BP) and which have continued to the end ... The walls were decorated with plaster work with geometrical motifs (spirals, continuing spirals) randomly painted in white. ...
Phonation
The oscillation of the vocal folds serves to modulate the pressure and flow of the air through the larynx, and this modulated ... which may be bounded by vocal breaks A particular phonation A resonance area such as chest voice or head voice A certain vocal ... potentially closing onto the pharyngeal wall) raising or lowering of the entire larynx narrowing of the pharynx Until the ... The motion of the vocal folds during oscillation is mostly lateral, though there is also some superior component as well. ...
Steam engine
These events are controlled by valves often working inside a steam chest adjacent to the cylinder; the valves distribute the ... The complete expansion of the steam now occurs across multiple cylinders and as less cylinder wall is exposed, per unit volume ... Also, there was a tendency for oscillation whenever there was a speed change. As a consequence, engines equipped only with this ... The valve chest for each of the cylinders is to the left of the corresponding cylinder. ...
Out-of-body experience
... and uses two plastic rods to simultaneously touch the participant's actual chest out-of-view and the chest of the illusory body ... oscillation and serenity. Another reported common sensation related to OBE was temporary or projective catalepsy, a more common ... passing through physical objects such as walls). The most commonly reported sensations experienced in connection with the OBE ... moving this second rod towards where the illusory chest would be located, just below the camera's view. The participants ...
Swimming stroke
Turtle float: The knees are raised to the chest and encircled by the arms. Jellyfish float: Holding the ankles with the hands. ... to hold on to the speed the swimmer generates by pushing off the walls at the start and the turns. When it's used for ... hence all swimming techniques exert vertical oscillation with upward propelling. Flicker kick, as vibration of both, hands and ... with arm pressed firmly against the victim's chest. The other hand is placed on the back of the victim's head with the arm down ...
Coandă effect
... we first refer to a two-dimensional plane wall jet of width h along a circular wall of radius r. A wall jet follows a flat ... Chest. 2006 Jul;130(1):300. Qudaisat, I.Y. (2008). "Coanda effect as an explanation for unequal ventilation of the lungs in an ... A sensor picks up the frequency of this oscillation and transforms it into an analog signal yielding volume passing through. In ... the effect occurs along the curved wall as a wall jet. The image here on the right represents a two dimensional wall jet ...
Heart sounds
S3 is thought to be caused by the oscillation of blood back and forth between the walls of the ventricles initiated by blood ... tricuspid area and mitral area are areas on the surface of the chest where the heart is auscultated. Heart sounds result from ... "a-stiff-wall" It is a sign of a pathologic state, usually a failing or hypertrophic left ventricle, as in systemic hypertension ...
List of Red vs. Blue characters
During one mission in Season 9, Maine took a sniper bullet to the chest, got hit by a Warthog and had an entire magazine of ... He referred to as "The Meta" by Agent Washington and the Counselor, in reference to a cryptic message scratched into a wall of ... Donut arrives and fixes Wash's oscillation, and explains Chrovos's plan. Washington suggests stopping the paradox, but Genkins ... As the two scramble for cover, York is shot twice in the chest by Wyoming, and Delta reports that the bullets were fatal. The ...
Apollo 8
The walls of the crater are terraced, about six or seven different terraces on the way down. Lovell continued to describe the ... Of primary concern was the pogo oscillation, which would not only hamper engine performance, but could exert significant g- ... that passing through the belts quickly at the spacecraft's high speed would cause a radiation dosage of no more than a chest X- ... Final testing of modifications to address the problems of pogo oscillation, ruptured fuel lines, and bad igniter lines took ...
Ventricular fibrillation
These are depolarising oscillations in the membrane voltage induced by preceding action potentials. These can occur before or ... and ST elevation in the chest leads V1-V3, with an underlying propensity to sudden cardiac death. The relevance of this is that ... the ventricles become dilated with blood as the rapid quivering movement of their walls is insufficient to expel their contents ... last of its vital energy is dissipated in the violent and the prolonged turmoil of fruitless activity in the ventricular walls ...
Neanderthal
The lung capacity of Kebara 2 was estimated to have been 9.04 L (2.39 US gal). The Neanderthal chest was also more pronounced ( ... At Cueva de Bolomor, Spain, with hearths lined up against the wall, the smoke flowed upwards to the ceiling, and led to outside ... inferring aspects of Neanderthal language abilities from gene regulation of neural oscillations" (PDF). Journal of ... In 2018, some red-painted dots, disks, lines, and hand stencils on the cave walls of the Spanish La Pasiega, Maltravieso, and ...
Vallabhbhai Patel
That despite some oscillation the scales stayed steady was due not only to the faith of the people in its leaders, but to the ... If Hyderabad does not see the writing on the wall, it goes the way Junagadh has gone. Pakistan attempted to set off Kashmir ... Ahmedabad Sardar Vallabhbhai Patel University of Agriculture and Technology Vallabhbhai Patel Chest Institute Statue of Unity ...
Gwion Gwion rock paintings
... it has been suggested that feather quills may have been used as a technique to apply the paint to the rock walls; an imprint of ... the Kimberley region settled into a tropical monsoon climate until a major El Niño-Southern Oscillation event in the mid ... Walsh says that the smaller breasts identified by Michaelson are probably chest-band decorations. Aerial fire-bombing and back ...
Great horned owl
Cheney, C. D., S. B. Vander Wall, and R. J. Poehlmann. 1987. Effects of strychnine on the behavior of Great Horned Owls and Red ... and rarely display the white area on the chest. Individual and regional variations in overall color occur, with birds from the ... to the 1997-1998 El Niño southern oscillation event. Journal of Mammalogy, 86(2), 265-274. Breck, S. W., Biggins, D. E., ... being most often prominent on the upper chest amongst otherwise pale plumage. This race shows no little to no reddish ...
2011 Missouri River Flood
The wells pump water collecting around the airport over the levee wall back into the Missouri River. On June 29, Nebraska ... However some people (particularly employees at the Mike Durfee State Prison) used motor boats, kayaks, chest waders and a ... Wang, Shih-Yu (2014). "The Pacific quasi-decadal oscillation (QDO): An important precursor toward anticipating major flood ... Tracy, Ryan (June 8, 2011). "Nebraska Nuclear Plant Lost Cooling System After Fire". The Wall Street Journal. Omaha, Nebraska. ...
Philo Farnsworth
On his bedroom walls are the images of Thomas Edison and Philo Farnsworth, among others. In 2010, the former Farnsworth factory ... Oscillation generator (filed July 5, 1934, issued February 23, 1937) U.S. Patent 2,143,145: Projection means (filed November 6 ... a pair of San Francisco philanthropists who were then conducting a Salt Lake City Community Chest fund-raising campaign. They ...
Chest wall oscillation - Wikipedia
Chest wall oscillation is when devices are used in airway clearance therapy to clear excess mucus from lung airways (bronchi ... It is the original High Frequency Chest Wall Oscillation Device by Advanced Respiratory, Inc (ARI), formerly American ... It uses a compressor to inflate and deflate the vest rhythmically at timed intervals and thus imposes high frequency chest wall ... These oscillations thin thixotropic airway mucus, facilitating its removal by coughing. Delivery of air to the vest can be ...
Chest Wall Oscillation for Asthma and COPD Exacerbations Trial (COAT) - Full Text View - ClinicalTrials.gov
Sham high frequency chest wall oscillation.. Device: High Frequency Chest Wall Oscillator High velocity, low amplitude ... High frequency chest wall oscillation. Device: High Frequency Chest Wall Oscillator High velocity, low amplitude oscillatory ... Chest Wall Oscillation for Asthma and COPD Exacerbations Trial (COAT). The safety and scientific validity of this study is the ... High frequency chest wall oscillation (HFCWO) may be a novel strategy for mechanical airway clearance to improve outcomes in ...
High Frequency Chest Wall Oscillation in Chronic Obstructive Pulmonary Disease (COPD) - Full Text View - ClinicalTrials.gov
High frequency chest wall oscillation(HFCWO) devices use percussion to the chest wall delivered from a pump through a close ... High Frequency Chest Wall Oscillation in Chronic Obstructive Pulmonary Disease (COPD). The safety and scientific validity of ... High frequency chest wall oscillation (HFCWO)23 is known to reduce respiratory rate but improve ventilation in patients with ... Chakravorty I, Chahal K, Austin G. A pilot study of the impact of high-frequency chest wall oscillation in chronic obstructive ...
High-frequency chest wall oscillation in ALS | Neurology
Effect of high-frequency oral airway and chest wall oscillation and conventional chest physical therapy on expectoration in ... High-frequency chest wall oscillation in ALS. D. J. Lange, N. Lechtzin, C. Davey, W. David, T. Heiman-Patterson, D. Gelinas, B. ... high-frequency oscillation applied to the chest wall transmits rapidly reversing oscillatory pressures through the chest wall ... Assessing efficacy of high-frequency chest wall oscillation in patients with familial dysautonomia. Chest 2005;128:3377-3381. ...
Safety, tolerability, and efficacy of high-frequency chest wall oscillation in pediatric patients with cerebral palsy and...
Chest physiotherapy is standard therapy but effort is substantial. High-frequency chest wall oscillation is used in cystic ... A prospective, randomized, controlled trial of high-frequency chest wall oscillation and standard chest physiotherapy was ... Adherence to prescribed regimen was higher with high-frequency chest wall oscillation (P = .036). Our data suggest safety, ... Safety, tolerability, and efficacy of high-frequency chest wall oscillation in pediatric patients with cerebral palsy and ...
Tracheal mucus clearance in high-frequency oscillation. II: Chest wall versus mouth oscillation
... and ventilation by high-frequency oscillation of the chest wall (HFO/CW). The HFO/AO was carried out by using a pisto … ... ventilation by high-frequency oscillation at the airway opening (HFO/AO), ... Tracheal mucus clearance in high-frequency oscillation. II: Chest wall versus mouth oscillation Am Rev Respir Dis. 1984 Nov;130 ... and ventilation by high-frequency oscillation of the chest wall (HFO/CW). The HFO/AO was carried out by using a piston pump ...
Comparison of high-frequency chest wall oscillation and oscillating positive expiratory pressure in the home management of...
Long-term multicentre randomised controlled study of high frequency chest wall oscillation versus positive expiratory pressure...
Short-term comparative study of high frequency chest wall oscillation and European airway clearance techniques in patients with...
Short-term comparative study of high frequency chest wall oscillation and European airway clearance techniques in patients with ... Short-term comparative study of high frequency chest wall oscillation and European airway clearance techniques in patients with ... Short-term comparative study of high frequency chest wall oscillation and European airway clearance techniques in patients with ...
Airway Clearance System Market by type (Positive Expiratory Pressure, High Frequency Chest Wall Oscillation, Oscillating PEP...
High Frequency Chest High-frequency chest Wall Oscillation (HFCWO). 4.3.1. Key market trends and growth opportunities. 4.3.2. ... HIGH-FREQUENCY CHEST WALL OSCILLATION (HFCWO) SYSTEMS MARKET, BY REGION, 2018-2026 ($MILLION). TABLE 04. OSCILLATING PEP ... By type, it is bifurcated into positive expiratory pressure, high frequency chest wall oscillation, oscillating pep devices, ... COMPARATIVE SHARE ANALYSIS OF HIGH-FREQUENCY CHEST WALL OSCILLATION (HFCWO) SYSTEMS MARKET, BY COUNTRY, 2018 & 2026 (%). FIGURE ...
High frequency chest wall oscillation in patients with chronic air-flow obstruction. - Semantic Scholar
In order to avoid any discomfort, oscillations were applied only during the expiratory phase of the spontaneous breathing cycle ... In order to assess high frequency chest wall oscillation (HFCWO) as a way to assist spontaneous breathing in obstructive lung ... High frequency chest wall oscillation in patients with chronic air-flow obstruction.. *. Julie Piquet, L. Brochard, +4 authors ... In order to assess high frequency chest wall oscillation (HFCWO) as a way to assist spontaneous breathing in obstructive lung ...
airway-clearance-units-high-frequency-chest-wall-oscillation
High-frequency chest wall oscillation units are intended to shear mucus from the airway wall by oscillatory forces and to aid ... High-Frequency Chest Wall Oscillation. Definition : Airway clearance units designed to apply automated mechanical oscillation ... Devices that perform chest wall oscillation using a cuirass may also act as mechanical ventilators. ... These devices may use one of several techniques to provide the oscillation, including external percussion on the chest wall, ...
High frequency chest wall oscillation for asthma and chronic obstructive pulmonary disease exacerbations: a randomized sham...
High frequency chest wall oscillation (HFCWO) is used for airway mucus clearance. The objective of this study was to evaluate ... chest wall abnormalities (e.g. severe kyphoscoliosis), chest wall or abdominal trauma/surgery in the past 6 weeks, systemic ... Fink J, Mahlmeister M: High-frequency oscillation of the airway and chest wall. Respir Care. 2002, 47: 797-807.PubMedGoogle ... High frequency chest wall oscillation (HFCWO) is used for airway mucus clearance. The objective of this study was to evaluate ...
Patent US5183038 - Gated programmable ventilator - Google Patentsuche
Patent US3584621 - Respiratory apparatus - Google Patents
High frequency chest wall oscillation system. US8528547. Apr 2, 2008. Sep 10, 2013. Carefusion 2200, Inc.. High frequency ... The wall is provided with a plurality of circular spaced holes 142 which extend through the wall. The shaft 139 is provided ... High frequency oscillation respiratory therapy. US20080283051 *. May 15, 2008. Nov 20, 2008. Joseph Dee Faram. Lung therapy ... Continuous high-frequency oscillation breathing treatment apparatus. US20050081844 *. Aug 12, 2004. Apr 21, 2005. Jerry ...
Patent US5313955 - Pulmonary flow head - Google Patents
High frequency chest wall oscillation system. US8479740 *. Nov 23, 2009. Jul 9, 2013. Covidien Lp. Airway devices with integral ... The thin-walled inside tube 18 acts as a restriction to air flow between the ends of the outer passage 16. The outer passage ... The inside tube is very thin in wall thickness. An annular partition 20 midway between the upstream and downstream ends of the ... Intermediate ports through the wall of the breath transmission passage are located near the restriction, i.e., near the ends of ...
Search results | NICE
High-frequency Chest Wall Oscillation Therapy: Clinical Effectiveness in the Patients with Pulmonary Contusion | The Korean...
Chest Wall Oscillation , Contusions , Humans , Length of Stay , Lung , Lung Injury , Respiration, Artificial , Thoracic ... In this study, we evaluated the usefulness of high-frequency chest wall oscillation (HFCWO) therapy in patients with pulmonary ... High-frequency Chest Wall Oscillation Therapy: Clinical Effectiveness in the Patients with Pulmonary Contusion / 대한구급학회지 ... High-frequency Chest Wall Oscillation Therapy: Clinical Effectiveness in the Patients with ...
High frequency chest wall oscillation plus Mechanical In-Exsufflation in Duchenne muscular dystrophy with respiratory...
High frequency chest wall oscillation plus Mechanical In-Exsufflation in Duchenne muscular dystrophy with respiratory ... November - December 2010 High frequency chest wall oscillation plus Mechanical In-Exsufflation in Duchenne... ... protocol was adopted that consisted of the application of multiple sessions of high-frequency chest wall oscillations, each one ... Acute hypoxemia in a child with neurologic impairment associated with high-frequency chest-wall compression. ...
Effect of high-frequency chest wall oscillation versus chest physiotherapy on lung function after lung transplant<...
Purpose: The aim of this study is to compare the effects of chest physiotherapy (CPT) and high-frequency chest wall oscillation ... Effect of high-frequency chest wall oscillation versus chest physiotherapy on lung function after lung transplant. In: Applied ... Fingerprint Dive into the research topics of Effect of high-frequency chest wall oscillation versus chest physiotherapy on ... Effect of high-frequency chest wall oscillation versus chest physiotherapy on lung function after lung transplant. Applied ...
A comparison of high frequency chest wall oscillation and intrapulmonary percussive ventilation for airway clearance in...
Bidiwala A, Volpe L, Halaby C, Fazzari M, Valsamis C, Pirzada M. A comparison of high frequency chest wall oscillation and ... Dive into the research topics of A comparison of high frequency chest wall oscillation and intrapulmonary percussive ... T1 - A comparison of high frequency chest wall oscillation and intrapulmonary percussive ventilation for airway clearance in ... A comparison of high frequency chest wall oscillation and intrapulmonary percussive ventilation for airway clearance in ...
Efficacy of high frequency chest wall oscillation on pulmonary functions in chronic bronchitis | Suez Canal University Medical...
High-frequency chest wall oscillation was administered at 8 Hz, 16 Hz, and 24 Hz each for 5 minutes. With a pressure span n15 ... Index: IMEMR (Eastern Mediterranean) Main subject: Respiratory Function Tests / Blood Gas Analysis / Chest Wall Oscillation ... Index: IMEMR (Eastern Mediterranean) Main subject: Respiratory Function Tests / Blood Gas Analysis / Chest Wall Oscillation ... Humans , Male , Female , Respiratory Function Tests , Blood Gas Analysis , Chest Wall Oscillation ...
September 2014 - Volume 12 - Issue 3 : International Journal of Evidence-Based Healthcare
Patente US3630196 - Manual positive pressure breathing device - Google Patentes
High frequency chest wall oscillation system. US8528547. 2 Abr 2008. 10 Sep 2013. Carefusion 2200, Inc.. High frequency ... High frequency oscillation respiratory therapy. US20090090360 *. 23 Ene 2007. 9 Abr 2009. Andrew Pocock. Mouthpiece for a ... Continuous high-frequency oscillation breathing treatment apparatus. US20050150493 *. 21 Feb 2003. 14 Jul 2005. Stephen Foster ... Continuous high-frequency oscillation breathing treatment apparatus. US8061352. 8 May 2007. 22 Nov 2011. Trudell Medical ...
CHILDRENS HOSPITAL OF WISCONSIN |CHILDRENS HOSPITAL OF WISCONSIN | Dollars for Docs - ProPublica
Patente US8528547 - High frequency oscillation respiratory therapy - Google Patentes
Fink et al., "High-Frequency Oscillation of the Airway and Chest Wall", Respiratory Care, 47(7):797-807 (Jul. 2002).. ... HFO can be delivered or created via a force applied to the patients chest wall (i.e., chest physical therapy (CPT), such as an ... Continuous high-frequency oscillation breathing treatment apparatus. US20060011198. 22 Jul 2003. 19 Ene 2006. Hasdi Matarasso. ... High-frequency oscillation patient ventillator system. US6705316. 11 Mar 2002. 16 Mar 2004. Battelle Pulmonary Therapeutics, ...
Cystic Fibrosis (CF) Treatment
Children's Interstitial and Diffuse Lung Disease | Children's Hospital of Philadelphia
European Respiratory Society guidelines for the management of adult bronchiectasis | European Respiratory Society
et al. Comparison of conventional chest physiotherapy and high-frequency chest wall oscillation in primary ciliary dyskinesia. ... et al. Effectiveness of treatment with high-frequency chest wall oscillation in patients with bronchiectasis. BMC Pulm Med 2013 ... that modify expiratory flow and volumes or produce chest wall oscillations in order to increase mucus clearance [108-112]. The ... et al. A pilot study of pulmonary rehabilitation and chest physiotherapy versus chest physiotherapy alone in bronchiectasis. ...
Non-Invasive Ventilation: A Practical Handbook for Understanding the Causes of Treatment Success and Failure | Nova Science...
Airway Secretions (Cough Assist-High Frequency Chest Wall Oscillation). (Pedro Rivas, Luis Eduardo Vasconcello and Salvador ... Chest Wall Disorders. (Anna Annunziata, MD, and Giuseppe Fiorentino MD, Respiratory Unit, AO Ospedali dei Colli Monaldi, Naples ... Early Non-Invasive Ventilator Failure in Chest Wall Disorders. (Nilgun Alpay, MD, Dilek Ozcengiz, MD, PhD, Department of ... Fellow Chest College Physicians ( FCCP), Internacional Fellow American Associations Respiratory Care (AARC), Intensive Care ...
HFCWOExpiratory pressureVestPercussive ventilationRespiratoryVentilationForced oscillation techniquePercussionChronic ObstrucE0483LungsVentilatorsNeuromuscularPatientsPhysiotherapy techniquesTherapyPulmonaryDevicesThoraxVibrationAffloVestCysticBronchialAirwaysAmplitudeSecretionsPressureClearanceCompressionThoracic surgeryAcuteCough
HFCWO32
- It uses a compressor to inflate and deflate the vest rhythmically at timed intervals and thus imposes high frequency chest wall oscillations (HFCWO) that are transferred to the lungs. (wikipedia.org)
- High frequency chest wall oscillation (HFCWO) may be a novel strategy for mechanical airway clearance to improve outcomes in patients with asthma/COPD exacerbations. (clinicaltrials.gov)
- High frequency chest wall oscillation(HFCWO) devices use percussion to the chest wall delivered from a pump through a close fitting inflatable vest. (clinicaltrials.gov)
- To evaluate changes in respiratory function in patients with ALS after using high-frequency chest wall oscillation (HFCWO). (neurology.org)
- One alternative is high-frequency chest wall oscillation (HFCWO). (neurology.org)
- HFCWO use is based on the principle that high-frequency oscillation applied to the chest wall transmits rapidly reversing oscillatory pressures through the chest wall and into the airways, creating forces in the airway calculated to be enhanced by the fourth power that dramatically increase mucous clearance 4 and enhance gas exchange in the lung periphery. (neurology.org)
- Two new airway clearance modalities are high-frequency chest wall oscillation (HFCWO) and oscillating positive expiratory pressure (OPEP). (nih.gov)
- In order to assess high frequency chest wall oscillation (HFCWO) as a way to assist spontaneous breathing in obstructive lung disease, we studied 12 patients with severe and stable COPD. (semanticscholar.org)
- High frequency chest wall oscillation (HFCWO) is used for airway mucus clearance. (biomedcentral.com)
- Moreover, HFCWO can be performed without the assistance from trained health care personnel, and may therefore offer a practical advantage compared to chest physiotherapy. (biomedcentral.com)
- The objective of this phase II clinical trial (Chest Wall Oscillation for Asthma and COPD ExacerbaTions [COAT] Trial) was therefore to evaluate the use of HFCWO early in the treatment of adults hospitalized for acute asthma or COPD. (biomedcentral.com)
- In this study, we evaluated the usefulness of high-frequency chest wall oscillation (HFCWO) therapy in patients with pulmonary contusion . (bvsalud.org)
- Purpose: The aim of this study is to compare the effects of chest physiotherapy (CPT) and high-frequency chest wall oscillation (HFCWO) on lung function in lung transplant recipients. (unthsc.edu)
- Background: Chest physiotherapy and HFCWO are routinely used after lung transplant to attenuate dyspnea, increase expiratory flow, and improve secretion clearance. (unthsc.edu)
- Objectives: The aim of this study was to compare two modes of airway clearance, the intrapulmonary percussive ventilation system (IPV) to high frequency chest wall oscillation system (HFCWO) in medically complex pediatric patients with tracheostomy requiring long term care. (elsevier.com)
- High frequency chest wall oscillation (HFCWO) has been used for a long time on the treatment of chronic conditions such as cystic fibrosis, bronchiectasis, and neuromotor-neuromuscular disorders. (hindawi.com)
- High frequency chest wall oscillation (HFCWO) has been shown to increase tracheal mucus clearance compared with a control group. (bioportfolio.com)
- AffloVest is the first battery-operated high frequency chest wall oscillation (HFCWO) therapy that allows people with bronchiectasis, cystic fibrosis, COPD, MS, MD, ALS and neuromuscular and respiratory diseases receive state-of-the-art airway clearance therapy on the go. (handimedical.com)
- AffloVest requires a doctor's prescription for treatment by High Frequency Chest Wall Oscillation (HFCWO). (handimedical.com)
- Ellis emphasized, 'International Biophysics offers an exceptional portfolio of innovative products including the revolutionary AffloVest®, the first self-contained, truly portable High Frequency Chest Wall Oscillation (HFCWO) vest. (prnewswire.com)
- We are also able to provide High Frequency Chest Wall Oscillation Vest (HFCWO) by using the AFFLOVEST. (huntsvillehospital.org)
- Electromed's High Frequency Chest Wall Oscillation or HFCWO device, SmartVest, is designed to improve patient comfort and compliance with prescribed treatment schedules. (rttnews.com)
- Last month, the company launched its SmartVest Connect App for iOS and Android, a personalized high frequency chest wall oscillation or HFCWO therapy management portal for patients with compromised pulmonary function. (rttnews.com)
- This study aimed to assess (1) the effects of high-frequency chest wall oscillation (HFCWO) on lung aeration and ventilation distribution, as assessed by electrical impedance tomography (EIT), and (2) the effect of the association of HFCWO with recruitment manoeuvres (RM). (biomedcentral.com)
- High-frequency chest wall oscillation (HFCWO) is an airway clearance technique by which external forces are applied to the chest through an inflatable wrap connected to a device that generates vibrations at variable frequency and intensity. (biomedcentral.com)
- The primary objective of this study was to determine whether the use of a newer HFCWO device that generates oscillations with a triangular waveform results in greater sputum production than a commonly used device that generates oscillations with a sine waveform. (thefreedictionary.com)
- NEW PRAGUE, Minn.--( BUSINESS WIRE )--Electromed, Inc. (NYSE American:ELMD) today announced the results of an independent, outcome-based clinical study presented during the third annual World Bronchiectasis Conference in Washington D.C. The study's findings reveal that early use of high frequency chest wall oscillation ("HFCWO") therapy with the SmartVest ® Airway Clearance System significantly reduced severe exacerbations and hospitalizations among non-cystic fibrosis bronchiectasis patients. (businesswire.com)
- HFCWO delivers alternating pulses of air into a vest garment that rapidly compresses and releases the chest wall, resulting in an oscillation in airflow within the airways that acts to loosen, thin, and propel mucus toward the major airways where it can be expectorated. (businesswire.com)
- Hill-Rom is releasing its new Monarch airway clearance system, a powered vest that delivers high frequency chest wall oscillation (HFCWO) therapy to patients requiring regular treatments. (medgadget.com)
- This process, called High-Frequency Chest Wall Oscillation (HFCWO), creates mini-coughs that dislodge mucus from the bronchial walls, increase mobilization, and move it along toward central airways. (dailystrength.org)
- AUSTIN, Texas: International Biophysics Corporation, a 26-year-old global medical device manufacturer based in Austin, Texas, announced today the publication of a clinical study on the mode of action of High Frequency Chest Wall Oscillation (HFCWO) vests. (newkerala.com)
- The Vest' is an advanced airway clearance system for people with CF. The device uses a system called High-Frequency Chest Wall Oscillation (HFCWO). (treeofhope.org.uk)
Expiratory pressure6
- By type, it is bifurcated into positive expiratory pressure, high frequency chest wall oscillation, oscillating pep devices, intrapulmonary percussive ventilators and mechanical cough assist. (marketpublishers.com)
- Airway clearance measures (oscillating positive expiratory pressure device, high-frequency chest wall oscillation vest). (nationaljewish.org)
- One study found that people using an vibrating device needed additional antibiotics for a chest infection more often than those using positive expiratory pressure. (cochrane.org)
- There are a number of different ACT's such as the active cycle of breathing technique, high-frequency chest wall oscillations, positive expiratory pressure (PEP) and oscillatory PEP. (springer.com)
- In the early 2000s, some newer devices, such as the positive expiratory pressure (PEP) valve and the flutter device, have been added to the various chest physical therapy techniques. (healthofchildren.com)
- Some of the devices are -the Positive Expiratory Pressure, the High Frequency Chest Wall Oscillation, the Oral High Frequency Oscillation, the Intrapulmonary Percussive Ventilation, the Incentive Spirometry the Flutter and the Acapella and the Cornet. (omicsonline.org)
Vest7
- These devices may use one of several techniques to provide the oscillation, including external percussion on the chest wall, intermittent compression by a patient-worn vest, and a cycle of positive and negative pressure compression provided by a cuirass around the patient chest. (medicalproductguide.com)
- The therapeutic effect of the Vest system in patients with pulmonary contusion was similar to that of conventional chest physiotherapy. (bvsalud.org)
- The vest shakes your chest to help dislodge the mucus from the airway walls. (nationaljewish.org)
- High-frequency chest wall oscillation vests: These include The Vest® and the SmartVest® and AffloVest ® and are inflatable vests that you put on. (nationaljewish.org)
- Unlike manual chest percussion therapy (CPT), The Vest System treatment does not require special positioning and breathing techniques. (dailystrength.org)
- The Air Pulse Generator rapidly fills and deflates an inflatable vest, gently compressing and releasing the chest wall up to 25 times per second. (dailystrength.org)
- But by age 3, Melissa required daily breathing treatments and began regular high-frequency chest wall oscillation treatments wearing an inflatable vest that vibrates rapidly to help break up the mucus in her lungs. (childrens.com)
Percussive ventilation1
- The Metaneb® is a new generation Intrapulmonary Percussive Ventilation device utilised by the physiotherapist to assist airway clearance by providing calibrated oscillations during inspiration up to 3.8Hz. (readbyqxmd.com)
Respiratory15
- It is the original High Frequency Chest Wall Oscillation Device by Advanced Respiratory, Inc (ARI), formerly American Biosystems, Inc., in Saint Paul, Minnesota, United States of America. (wikipedia.org)
- Pneumatic vests worn over the chest, however, may not be acceptable to patients with asthma or COPD with worsening respiratory symptoms. (biomedcentral.com)
- Their clinical and radiological findings rapidly improved when a sequential respiratory physiotherapy protocol was adopted that consisted of the application of multiple sessions of high-frequency chest wall oscillations, each one followed by mechanically assisted coughing manoeuvres. (journalpulmonology.org)
- The forced oscillation technique offers a simple and detailed approach to investigate the mechanical properties of the respiratory system. (scielo.br)
- However, there have been no data concerning the use of the forced oscillation technique to evaluate respiratory mechanics in groups with different degrees of tobacco consumption. (scielo.br)
- This study revealed that forced oscillation technique parameters were able to detect early smoking-induced respiratory involvement when pathologic changes are still potentially reversible. (scielo.br)
- A device which a patient puts on his chest-wall and which mechanically oscillates to improve patient's respiratory condition. (medwow.com)
- A respiratory support system used to remove mucus and clear airway by oscillating pressure on the chest. (bioportfolio.com)
- The aim of this prospective randomized study is to compare the outcomes of the early use of either high frequency oscillation (HFO) or conventional mechanical ventilation (CMV) in patients with pediatric acute respiratory distress syndrome (PARDS). (readbyqxmd.com)
- The study, Effect of High Frequency Chest Wall Oscillation Vests on Spirometry Measurements, was published today in Respiratory Therapy's online issue and will be featured in the next print issue scheduled for October. (newkerala.com)
- The goal of the study was to assess the clinical feasibility of high-frequency chest wall compression (HFCWC) therapy in neurologically impaired children with respiratory symptoms. (rcjournal.com)
- 1 , 2 Upper-airway obstruction syndromes, reflux and aspiration of gastric contents, impaired lower-respiratory secretion clearance due to weak cough, frequent lower-respiratory-tract infections, chest wall deformities and related deformities of the tracheobronchial tree contribute to morbidity and pose a constant challenge to clinicians. (rcjournal.com)
- 10 , 11 In an attempt to promote clearance of these lower-respiratory secretions, chest physical therapy is often incorporated in the management of children with neurological impairment. (rcjournal.com)
- The selection of chest physical therapy methods used in this group of patients depends on several factors, including the cognitive status of the patient, severity of respiratory compromise, and in many ways on the clinical experience of the clinicians. (rcjournal.com)
- Chest physical therapy is the term for a group of treatments designed to improve respiratory efficiency, promote expansion of the lungs, strengthen respiratory muscles, and eliminate secretions from the respiratory system. (healthofchildren.com)
Ventilation3
- We compared the tracheal mucus clearance rate (TMCR) in anesthetized dogs during spontaneous breathing (SB), ventilation by high-frequency oscillation at the airway opening (HFO/AO), and ventilation by high-frequency oscillation of the chest wall (HFO/CW). (nih.gov)
- We conclude that high-frequency ventilation by rapid chest wall compression enhances tracheal mucus clearance when compared with spontaneous breathing, whereas high-frequency oscillation at the mouth does not. (nih.gov)
- Besides airway suctioning, patients undergoing invasive mechanical ventilation (iMV) benefit of different combinations of chest physiotherapy techniques, to improve mucus removal. (biomedcentral.com)
Forced oscillation technique6
- and (2) to compare the diagnostic accuracy of the forced oscillation technique and spirometric parameters. (scielo.br)
- 20 pack-years were adequately detected by forced oscillation technique parameters. (scielo.br)
- 0.01) for forced oscillation technique parameters. (scielo.br)
- 60 pack-years, the diagnostic performance of the forced oscillation technique was similar to that observed with spirometry. (scielo.br)
- These findings support the use of the forced oscillation technique as a versatile clinical diagnostic tool in helping with chronic obstructive lung disease prevention, diagnosis, and treatment. (scielo.br)
- Airway responsiveness to aerosolized methacholine (assessed via the forced oscillation technique) was greater in mice fed HFD versus chow for 24 weeks but not at earlier time points. (frontiersin.org)
Percussion4
- The conventional chest physiotherapy is a method including postural drainage, position, and percussion technique [ 6 ]. (hindawi.com)
- The patient may use deep breathing or types of coughing to help loosen and clear the mucus, or the parent, caregiver or therapist may use clapping or percussion techniques on the patient's chest to help move the mucus. (hopkinsallchildrens.org)
- Percussion involves rhythmically striking the chest wall with cupped hands. (healthofchildren.com)
- For months I had to have chest percussion every few hours to help remove the secretions from my lungs. (determined2heal.org)
Chronic Obstruc1
- The purpose of this study is to determine whether inpatient use of a high frequency chest wall oscillator is an effective therapy for patients hospitalized with asthma exacerbations or chronic obstructive pulmonary disease (COPD) exacerbations. (clinicaltrials.gov)
E04831
- AffloVest is approved for Medicare, Medicaid and private health insurance reimbursement under the Healthcare Common Procedure Coding System (HCPCS) code E0483 - High Frequency Chest Wall Oscillation. (handimedical.com)
Lungs6
- Asthma can cause excess mucus buildup in the lungs that leads to chest congestion. (verywellhealth.com)
- People with cystic fibrosis use chest physiotherapy to clear the mucus from their lungs. (cochrane.org)
- The AffloVest mimics manual CPT by using mechnical oscillation to help loosen and thin mucus in the lungs. (handimedical.com)
- It also helps keep the contents of the chest (lungs and heart) separate from the contents of the abdomen (liver, stomach, bowel, etc. (childrenscolorado.org)
- Patients with cystic fibrosis are particularly affected, and caretakers have been helping to perform chest physical therapy (CPT) techniques for decades to help dislodge the mucus plugs and excess of secretions from the lungs. (medgadget.com)
- It has eight so called "pulmonary oscillating discs" that generate chest movements that help to move mucus out of the lungs. (medgadget.com)
Ventilators2
- Devices that perform chest wall oscillation using a cuirass may also act as mechanical ventilators. (medicalproductguide.com)
- MedPAC points out that CMS has the authority to include some additional products in the program, including chest wall oscillation devices, ventilators and off-the-shelf orthotics. (hmenews.com)
Neuromuscular4
- Safety, tolerability, and efficacy of high-frequency chest wall oscillation in pediatric patients with cerebral palsy and neuromuscular diseases: a. (nih.gov)
- High-frequency chest wall oscillation is used in cystic fibrosis but tolerability and safety data in cerebral palsy and neuromuscular disease are limited. (nih.gov)
- A prospective, randomized, controlled trial of high-frequency chest wall oscillation and standard chest physiotherapy was performed in participants with neuromuscular disease or cerebral palsy. (nih.gov)
- Chest wall oscillation approved for neuromuscular disease, 80 % paid by Medicare with assistance for rest.originally for bronchiectasisuse for thirty minutes twice dailywww.smartvest.comwww.ICD9data.com var pageTracker = _gat. (medworm.com)
Patients10
- High-frequency chest wall oscillation was well tolerated, considered helpful by a majority of patients, and decreased symptoms of breathlessness. (neurology.org)
- In patients with impaired breathing, high-frequency chest wall oscillation decreased fatigue and showed a trend toward slowing the decline of forced vital capacity. (neurology.org)
- High frequency chest wall oscillation in patients with chronic air-flow obstruction. (semanticscholar.org)
- Twenty male patients with chronic bronchitis participated in this study, after giving a written informed consent , in order to investigate the changes that occur in the ventilatory functions and arterial oxygen saturation percentage as a result for administration of high-frequency chest wall oscillation . (bvsalud.org)
- Effects of high frequency chest wall oscillation technique were investigated on intubated ICU patients. (hindawi.com)
- Patients undergoing surgery for locally advanced lung cancer involving the chest wall require anatomical lung with extensive en-bloc chest wall resection and appropriate reconstruction.In this proo. (bioportfolio.com)
- A Simplified Method for Three-Dimensional Optical Imaging and Measurement of Patients with Chest Wall Deformities. (bioportfolio.com)
- With seven, lightweight custom fit size variations (XXS-XXL) and adjustable shoulder and chest straps, the ergonomic fit of the AffloVest can accommodate different patients' needs for tailored therapy that fits young children and adults. (handimedical.com)
- In intubated patients, the application of various combinations of chest physiotherapy techniques is a commonly used intensive care procedure [ 8 ]. (biomedcentral.com)
- The purpose of chest physical therapy, also called chest physiotherapy, is to help patients breathe more freely and to get more oxygen into the body. (healthofchildren.com)
Physiotherapy techniques2
- The purpose of this study is to compare two physiotherapy techniques: chest wall compression versus chest wall compression plus increase of 10 cmH2O in inspiratory pressure. (bioportfolio.com)
- Innovative chest physiotherapy techniques (the MetaNeb® System) in the intubated child with extensive burns. (readbyqxmd.com)
Therapy14
- Chest wall oscillation is when devices are used in airway clearance therapy to clear excess mucus from lung airways (bronchi and bronchioles). (wikipedia.org)
- Chest physiotherapy is standard therapy but effort is substantial. (nih.gov)
- The impact of high-frequency chest wall oscillation therapy on spirometry values (Forced Expiratory Volume, Forced Vital Capacity, Peak Expiratory Flow, Forced Expiratory Flow and Tidal Vo. (bioportfolio.com)
- Continued Dr. O'Brien, "Vibratory action through the chest wall helps to loosen secretions, much like manual Chest Physical Therapy (CPT). (newkerala.com)
- Manual Chest Physical Therapy (CPT) has always been considered the gold standard in mobilizing and clearing lung secretions. (newkerala.com)
- 19 Other chest physical therapy modalities include end-expiratory positive pressure devices, manual chest physical therapy, and high-frequency chest wall compression (HFCWC). (rcjournal.com)
- Chest physical therapy is normally done in conjunction with other treatments to rid the airways of secretions. (healthofchildren.com)
- Chest physical therapy is one way to reduce the risks of an inefficient clearance of airway secretions. (healthofchildren.com)
- Depending on the specific technique and health situation, chest physical therapy may be used on children from newborns to adolescents. (healthofchildren.com)
- Various methods of chest physical therapy have been used since the early 1900s to help manage airway clearance disorders. (healthofchildren.com)
- However, chest physical therapy presents some challenges and requires skill and training in order to be safely and effectively performed. (healthofchildren.com)
- Chest physical therapy is a method of clearing the airway of excess mucus. (healthofchildren.com)
- The following techniques are all part of chest physical therapy. (healthofchildren.com)
- There are four primary airway clearance technique methods: (a) chest physical therapy (CPT), (b) PEP, (c) high frequency chest wall oscillation, and (d) ACB. (thefreedictionary.com)
Pulmonary2
- Pulmonary contusion is the most common pulmonary parenchymal injury in blunt chest trauma and may constitute a life -threatening thoracic injury . (bvsalud.org)
- After hospitalization chest CT scan revealed extensive pulmonary bilateral segmental atelectasis. (journalpulmonology.org)
Devices1
- RAC Region C contractor Connolly posted two automated reviews for Durable Medical Equipment (DME) providers on April 8, 2014, regarding Mechanical In-exsufflation Devices, High Frequency Chest Wall Oscillation Devices, and Urological Supplies. (racmonitor.com)
Thorax1
- HFO/CW was effected by creating rapid pressure oscillations in an air-filled cuff wrapped around the lower thorax of the animal, causing small tidal volumes at the mouth. (nih.gov)
Vibration1
- Oscillation of the lung by chest-wall vibration. (biomedsearch.com)
AffloVest2
- The AffloVest has received the FDA's 510k clearance for U.S. market availability, and is approved for Medicare, Medicaid, and private health insurance reimbursement under the Healthcare Common Procedure Coding System (HCPCS) codeE0483 - High Frequency Chest Wall Oscillation. (handimedical.com)
- We engineered and developed the AffloVest to mimic hand CPT using our patented Direct Dynamic Oscillation technology that also provides the benefit of mobility and portability during use for the user. (newkerala.com)
Cystic1
- Regular airway clearance by chest physiotherapy and/or exercise is critical to lung health in cystic fibrosis (CF). Combination of cycling exercise and chest physiotherapy using the Flutter® device on sputum properties has not yet been investigated. (springer.com)
Bronchial1
- This process creates 'mini coughs' that dislodge mucus from the bronchial walls, increases mobilisation and moves it along towards the central airways. (treeofhope.org.uk)
Airways1
- Airway clearance units designed to apply automated mechanical oscillation to the chest wall to obtain a high-frequency oscillation (HFO) of the air column in the conducting airways. (medicalproductguide.com)
Amplitude8
- The amplitude of the circadian oscillations of oxygen consumption, breathing rate, thoracic skin temperature and diastolic pressure did not differ between HA and SL. (biomedsearch.com)
- At HA, the amplitude of the tympanic and calf temperature oscillations, were, respectively, lower and higher than at SL. (biomedsearch.com)
- End-tidal P(CO2) and systolic pressure had larger amplitude oscillations at HA than at SL. (biomedsearch.com)
- When you drive the ball at its natural frequency, the ball's oscillations increase in amplitude with each oscillation for as long as you drive it. (lumenlearning.com)
- As the driving frequency gets progressively higher than the resonant or natural frequency, the amplitude of the oscillations becomes smaller, until the oscillations nearly disappear and your finger simply moves up and down with little effect on the ball. (lumenlearning.com)
- If the finger moves with the natural frequency f0 of the ball on the rubber band, then a resonance is achieved, and the amplitude of the ball's oscillations increases dramatically. (lumenlearning.com)
- At higher and lower driving frequencies, energy is transferred to the ball less efficiently, and it responds with lower-amplitude oscillations. (lumenlearning.com)
- Conversely, if you want small-amplitude oscillations, such as in a car's suspension system, then you want heavy damping. (lumenlearning.com)
Secretions1
- It is based on the theory that when various areas of the chest and back are percussed, shock waves are transmitted through the chest wall, loosening the airway secretions. (healthofchildren.com)
Pressure3
- These parameters are usually measured at various frequencies by means of small pressure oscillations (about 2 cmH2O) superimposed at the mouth during spontaneous breathing. (scielo.br)
- We examined whether or not coherence between chest wall intercostal and oblique muscles changed as a function of lung volume excursion, alveolar pressure, and muscular demand. (humankinetics.com)
- Oscillations in arterial blood pressure and PaCO2 induce CBF variability. (readbyqxmd.com)
Clearance2
- Tracheal mucus clearance in high-frequency oscillation. (nih.gov)
- The therapeutic mainstay includes airway clearance maneuvers mainly with nebulized hypertonic saline and chest physiotherapy, and prompt and aggressive administration of antibiotics. (frontiersin.org)
Compression2
- Chest compression apparatus, Warren J. Warwick et al. (wikipedia.org)
- High-frequency chest-wall compression during the 48 hours following thoracic surgery. (semanticscholar.org)
Thoracic surgery1
- Three-Dimensional Printing for Chest Wall Reconstruction in Thoracic Surgery: Building on Experience. (bioportfolio.com)
Acute1
- We also assessed the effects of acute expiratory threshold loading (ETL) on chest wall muscular control. (humankinetics.com)
Cough1
- They will also consider if you could be having increased exposure to your asthma triggers or worsening of your asthma, especially if you are also having an exacerbation of your other asthma symptoms , such as cough, wheezing, and chest tightness. (verywellhealth.com)