Pulse oximetry has limitationsBMJ 1995; 311 doi: https://doi.org/10.1136/bmj.311.7002.452a (Published 12 August 1995) Cite this as: BMJ 1995;311:452
- Mark Stoneham
- Senior registrar Department of Anaesthesia, Stoke Mandeville Hospital, Aylesbury HP21 8AL
EDITOR,--Most anaesthetists are already aware of the dual problems of oxygenation and monitoring during endoscopy on sedated patients.1 The solution, however, may not be as simple as introducing supplemental oxygen and using pulse oximetry for all patients. There are crucial differences between a sedated patient undergoing endoscopy and an anaesthetised patient undergoing surgery.
Firstly, for patients undergoing endoscopy there is usually only one operator, who performs the endoscopy as well …