ABSTRACT
Objective To evaluate the scavenging efficacy of a novel scavenger in removing isoflurane.Methods Forty five patients undergoing abdominal surgery were enrolled and randomly divided into three groups.The Datex-ohmeda S/5 anesthetic machine was applied to provide general anesthesia with isoflurane in group A,Datex-ohmed Aestiva/5 in group B,and Drager RA2S in Group C.After 60 minutes,the gas samples were taken at the waste gas outlet,airtake and airout of stripe tubes of anesthetic machines by Philips intellivue MP60 Anesthesia monitor to identify the concentrations of isoflurane and PCO2 both before and after the application of the scavenger.Results The novel scavenger could completely eliminate waste anesthetic gases including isoflurane and CO2.Conclusion The eliminating rate is 100% and the air quality in operating room is improved apparently.