Abstract
Standards for monitoring during anaesthesia and recovery, published by the Association of Anaesthetists of Great Britain and Ireland in 1988, were revised last year.5 These recommend that clinical monitoring should be supplemented by devices that continuously display the heart rate, pulse volume or arterial pressure, oxygen saturation, and electrocardiogram. Furthermore, they recommend strongly that oxygen saturation should be measured until the patient meets the criteria for discharge from the recovery area. Importantly, the recommendations emphasise that the same standards of monitoring should be applied to regional anaesthesia and sedative techniques when there is a risk of unconsciousness or …