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MECHANICAL VENTILATION IN ANAESTHESIA   Freefree

Minerva Anestesiologica 2000 May;66(5):293-6

Copyright © 2009 EDIZIONI MINERVA MEDICA

language: English

Time to reconsider the pre-oxygenation during induction of anaesthesia

Hedenstierna G., Edmark L. *, Aherdan K. K. **

From the Department of Medical Sciences Clinical Physiology University Hospital, Uppsala, Sweden *Department of Anaesthesia and Intensive Care **Department of Radiology Central Hospital, Västerås, Sweden


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Atelectasis is a frequent finding in paralysed and mechanically ventilated patients. Atelecta-sis, causing shunt, impaires oxygenation and could contribute to postoperative pulmonary complications. Pre-oxygenation used during anaesthesia induction causes atelectasis. A lowering of oxygen fraction from 100% to 80% does not shorten the safety time of apnoea period, particularly useful for a difficult intubation, but it reduces drastically the atelectasis incidence.

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