BIOMAT Database Logo BIOMAT Database Logo

The effects of expiratory positive airway pressure on functional residual capacity in normal subjects. 1978

C S Garrard, and M Shah

Functional residual capacity (FRC) was determined by constant volume, whole body plethysmography in seven normal subjects under resting conditions and following the addition of increasing levels of expiratory positive airway pressure (EPAP). There was a significant increase in FRC in six of the seven subjects studied. Grouped data showed a progressive increase in FRC with increasing EPAP (p less than 0.01). The highest level of EPAP (15 cm H2O) was associated with a 20% increase in FRC. We have been able to confirm that EPAP provides a simple and effective method of increasing FRC which could be applied to the treatment of conditions characterized by temporary and reversible reduction in lung volume.

UI MeSH Term Description Entries
D008176 Lung Volume Measurements Measurement of the amount of air that the lungs may contain at various points in the respiratory cycle. Lung Capacities,Lung Volumes,Capacity, Lung,Lung Capacity,Lung Volume,Lung Volume Measurement,Measurement, Lung Volume,Volume, Lung
D008297 Male Males
D010991 Plethysmography Recording of change in the size of a part as modified by the circulation in it. Plethysmographies
D011175 Positive-Pressure Respiration A method of mechanical ventilation in which pressure is maintained to increase the volume of gas remaining in the lungs at the end of expiration, thus reducing the shunting of blood through the lungs and improving gas exchange. Positive End-Expiratory Pressure,Positive-Pressure Ventilation,End-Expiratory Pressure, Positive,End-Expiratory Pressures, Positive,Positive End Expiratory Pressure,Positive End-Expiratory Pressures,Positive Pressure Respiration,Positive Pressure Ventilation,Positive-Pressure Respirations,Positive-Pressure Ventilations,Pressure, Positive End-Expiratory,Pressures, Positive End-Expiratory,Respiration, Positive-Pressure,Respirations, Positive-Pressure,Ventilation, Positive-Pressure,Ventilations, Positive-Pressure
D002986 Clinical Trials as Topic Works about pre-planned studies of the safety, efficacy, or optimum dosage schedule (if appropriate) of one or more diagnostic, therapeutic, or prophylactic drugs, devices, or techniques selected according to predetermined criteria of eligibility and observed for predefined evidence of favorable and unfavorable effects. This concept includes clinical trials conducted both in the U.S. and in other countries. Clinical Trial as Topic
D005540 Forced Expiratory Flow Rates The rate of airflow measured during a FORCED VITAL CAPACITY determination. Expiratory Forced Flow Rates,Flow Rates, Expiratory Forced,Flow Rates, Forced Expiratory
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

Related Publications

C S Garrard, and M Shah
Continuous positive airway pressure and expiratory positive airway pressure increase functional residual capacity equivalently.
April 1986, Chest,
C S Garrard, and M Shah
Inspiratory Capacity as an Indirect Measure of Immediate Effects of Positive Expiratory Pressure and CPAP Breathing on Functional Residual Capacity in Healthy Subjects.
October 2015, Respiratory care,
C S Garrard, and M Shah
[Prediction of the increase in functional residual capacity induced by positive expiratory pressure].
January 1984, Annales francaises d'anesthesie et de reanimation,
C S Garrard, and M Shah
Inhaled beta 2-agonist and positive expiratory pressure in bronchial asthma. Influence on airway resistance and functional residual capacity.
October 1993, Chest,
C S Garrard, and M Shah
The effect of positive end-expiratory pressure on functional residual capacity: role of prostaglandin production.
October 1982, The American review of respiratory disease,
C S Garrard, and M Shah
Continuous positive airway pressure effect on functional residual capacity, vital capacity and its subdivisions.
July 1987, Chest,
C S Garrard, and M Shah
Functional residual capacity as a noninvasive indicator of optimal positive end-expiratory pressure.
April 1988, Journal of clinical monitoring,
C S Garrard, and M Shah
Role of positive end-expiratory pressure changes on functional residual capacity in surfactant treated preterm infants.
August 1994, Pediatric pulmonology,
C S Garrard, and M Shah
[Increase in functional residual capacity induced by positive end-expiratory pressure. Prediction using the thoracopulmonary pressure curve].
January 1984, Annales francaises d'anesthesie et de reanimation,
C S Garrard, and M Shah
Effect of positive end expiratory pressure on functional residual capacity and compliance in surfactant-treated preterm infants.
January 2001, Journal of perinatal medicine,
Copied contents to your clipboard!