Pulmonary physiology in the postoperative period.

  title={Pulmonary physiology in the postoperative period.},
  author={R D Fairshter and J. H. Williams},
  journal={Critical care clinics},
  volume={3 2},
After upper abdominal or thoracic surgery, loss of lung volume, manifested most importantly by reduced FRC, and abnormal gas exchange, manifested by postoperative reduction in PaO2, are the rule rather than the exception. These physiologic alterations in lung function occur in the absence of superimposed complications such as pneumonia and/or lobar atelectasis; the usual physiologic alterations do, in fact, predispose to pulmonary complications (approximate 20 per cent incidence) which, when… CONTINUE READING