Format

Send to

Choose Destination
See comment in PubMed Commons below
Clin Physiol Funct Imaging. 2003 May;23(3):123-9.

Alveolar collapse and closure of airways: regular effects of anaesthesia.

Author information

1
Department of Clinical Physiology, University Hospital, Uppsala, Sweden. Goran.Hedenstierna@medsei.uu.se

Abstract

Oxygenation is impaired in almost all subjects during anaesthesia, and hypoxaemia for shorter or longer periods is a common finding. Moreover, postoperative lung complications occur in 3-4% after elective surgery, and up to 20% in emergency operations. Rapid collapse of alveoli on induction of anaesthesia and more widespread closure of airways seem to explain the oxygenation impairment and may also contribute to postoperative pulmonary infection, Causative mechanisms to atelectasis and airway closure seem to be loss of respiratory muscle tone and gas resorption. Avoiding high inspired oxygen fractions during both induction and maintenance of anaesthesia prevents or reduces atelectasis, while intermittent 'vital capacity' manoeuvres, recruit atelectatic lung regions.

PMID:
12752552
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments

    Supplemental Content

    Full text links

    Icon for Wiley
    Loading ...
    Support Center