Clinical Evaluation of a Prototype Motion Artifact Resistant Pulse Oximeter in the Recovery Room

Abstract
The frequency and nature of spurious pulse oximetry readings were compared using both a conventional pulse oximeter (CPO) and a prototype Masimo signal extraction technology pulse oximeter (Masimo SET Trademark).At a university hospital, 50 ASA physical status I-IV adult patients who underwent general or spinalepidural anesthesia were selected from a group of 250 patients on the basis of high-alarm generation with routine postoperative pulse oximetry. Pulse oximetry data were recorded simultaneously from both devices with a computer. Overall, the CPO alarm frequency (i.e., oxygen saturation (Anesth Analg 1996;83:269-72)