Results 291 to 300 of about 187,291 (347)

Nasal Airway Resistance Computer

The Laryngoscope, 1977
An analogue computing system for the measurement of nasal airway resistance (Rn) has been developed. The instrument operates on the principle of measuring the transnasal pressure required to generate a measured nasal airflow rate. The system computes and displays inspiratory or expiratory nasal airway resistance measured at a preselected flow rate. The
L H, Hamilton, N T, Christman
openaire   +2 more sources

Upper Airway Resistance Syndrome

Respiration, 1997
Obstruction of the upper airway may cause arousals resulting in daytime sleepiness and cardiovascular disturbances. The upper airway resistance syndrome may easily be overlooked because conventional measurements of oronasal airflow and thoracic and abdominal efforts are not sensitive enough.
K H, Rühle, E, Schlenker, W, Randerath
openaire   +2 more sources

Upper airway resistance syndrome

Sleep Medicine Reviews, 1999
This article reviews the clinical picture, diagnosis and management of the upper airway resistance syndrome (UARS). Presently, there is not enough data on key points like the frequency of UARS and the morbidity associated with this condition. Furthermore, the existence of LIARS as an independent sleep disorder and its relation with snoring and ...
J M, Montserrat, J R, Badia
openaire   +2 more sources

Upper-airway resistance syndrome

2011
Publisher Summary Upper-airway resistance syndrome (UARS) is first recognized in children. The description of UARS brought the attention of clinicians to a group of patients that is left undiagnosed and untreated despite severe impairment. It indicated that they had to identify this clinical entity as many had been denied proper treatment based on ...
Christian, Guilleminault, Virginia De, Los Reyes   +1 more
openaire   +2 more sources

Airway resistance and characterization of airway obstruction

Monitoring airway disease, 2021
Background: Airway obstruction occurs due to an increase in airway resistance, so the determination of Raw must be considered for the evaluation of its presence and severity classification especially in individuals with difficultty to perform forced maneuvres.
Raquel Barros, Liliana Raposo, Ana Sofia Oliveira, Cristina Bárbara   +3 more
openaire   +1 more source

Measurement of nasal airway resistance

Journal of Allergy, 1965
Abstract A measure of nasal airway resistance can be obtained by simultaneously relating transnasal pressure drop and the rate of nasal air flow. Resistance varies continuously throughout the range of attainable flows, and it has meaning only in relationship to specified rates of flow at which it is measured. The procedure described appears to provide
W R, SOLOMON, J A, MCLEAN, C, COOKINGHAM, G, AHRONHEIM, G R, DEMUTH   +4 more
openaire   +2 more sources

Plethysmographic specific airway resistance

Paediatric Respiratory Reviews, 2006
sRaw measurements are feasible in children from 2 years of age. sRaw allows clinical monitoring and research during this critical period of growth and development in early life. sRaw measurements promise to bridge the gap of lung function measurements between infancy and school age.
openaire   +2 more sources

Peripheral Airways Resistance in Smokers

American Review of Respiratory Disease, 1992
To determine peripheral airways resistance (Rp) in asymptomatic smokers, we used a wedged bronchoscope technique to study 19 volunteers (18 to 44 yr of age) who actively smoked for 2 to 28 pack-years. A fiberoptic bronchoscope was wedged in a subsegmental bronchus of the right upper lobe.
E M, Wagner, E R, Bleecker, S, Permutt, M C, Liu   +3 more
openaire   +2 more sources