PRESSURE REVERSAL OF GENERAL ANAESTHESIA—A MULTI-SITE EXPANSION HYPOTHESIS

Abstract
We have quantitated the pressure reversal of continuous i.v. anaesthesia produced in rats by keta-mine, methohexitone, propanidid and thiopentone. These and other data are not consistent with the earlier critical volume hypothesis of general anaesthesia and therefore we postulate an alternative molecular mechanism—the multi-site expansion hypothesis.