Postoperative Atelectasis
- 1 July 1981
- journal article
- research article
- Published by American Medical Association (AMA) in Archives of Surgery
- Vol. 116 (7) , 861-863
- https://doi.org/10.1001/archsurg.1981.01380190011003
Abstract
• Postoperative atelectasis has been treated with inspiratory maneuvers in an attempt to increase functional residual capacity. We compared the effect of intermittent positive pressure breathing (IPPB), incentive spirometry, and 5-cm H2O positive end-expiratory pressure (PEEP) applied with a face mask on the transpulmonary pressure (PL) at the end of expiration of eight patients 24 to 34 hours after aortocoronary bypass graft insertion. Intermittent positive pressure breathing and PEEP increased expiratory PLduring therapy. After IPPB, expiratory PLfell below control values and then returned toward, but did not reach, control values. After PEEP was discontinued, expiratory PLreturned to control values within the next 30 minutes. The results suggest that face-mask PEEP will increase functional residual capacity, that incentive spirometry has little or no effect, and that IPPB may decrease lung volume after treatment. (Arch Surg1981;116:861-863)This publication has 1 reference indexed in Scilit:
- A technique for direct measurement of intrapleural pressureCritical Care Medicine, 1976