TY - JOUR
T1 - Pulmonary function before and after prolonged continuous positive airway pressure by mask
AU - Stock, M. C.
AU - Downs, J. B.
AU - Corkran, M. L.
PY - 1984/1/1
Y1 - 1984/1/1
N2 - This investigation examined whether prolonged continuous positive airway pressure (CPAP) applied by face mask could sustain an increase in functional residual capacity (FRC). Before median sternotomy, nine adults performed multiple-breath nitrogen washout to determine FRC and spirometry. The day after operation, lung volumes were measured before and 10 min after the 4-h application of 7.5 cm H2O of CPAP with a mask. Mean FRC, forced vital capacity (FVC), forced expiratory volume in 1 sec (FEV1), and FEV1/FVC after CPAP were similar to pretreatment values. Although CPAP can restore FRC to preoperative values, and did increase FRC in these patients, FRC deteriorates within 10 min after CPAP is removed. Therefore, when a sustained increase in FRC is desired after median sternotomy, CPAP should be applied without interruption.
AB - This investigation examined whether prolonged continuous positive airway pressure (CPAP) applied by face mask could sustain an increase in functional residual capacity (FRC). Before median sternotomy, nine adults performed multiple-breath nitrogen washout to determine FRC and spirometry. The day after operation, lung volumes were measured before and 10 min after the 4-h application of 7.5 cm H2O of CPAP with a mask. Mean FRC, forced vital capacity (FVC), forced expiratory volume in 1 sec (FEV1), and FEV1/FVC after CPAP were similar to pretreatment values. Although CPAP can restore FRC to preoperative values, and did increase FRC in these patients, FRC deteriorates within 10 min after CPAP is removed. Therefore, when a sustained increase in FRC is desired after median sternotomy, CPAP should be applied without interruption.
UR - http://www.scopus.com/inward/record.url?scp=0021678832&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0021678832&partnerID=8YFLogxK
U2 - 10.1097/00003246-198411000-00011
DO - 10.1097/00003246-198411000-00011
M3 - Article
C2 - 6389007
AN - SCOPUS:0021678832
VL - 12
SP - 973
EP - 974
JO - Critical Care Medicine
JF - Critical Care Medicine
SN - 0090-3493
IS - 11
ER -