An evaluation of the Hellige Transoxode (Servomed Oxymonitor SM 361 System): response to halothane and enflurane in vitro.

Abstract:

:The effects of halothane (0.5-2%) and enflurane (1-4%) on two Transoxode transcutaneous oxygen (TcPO2) electrodes (Hellige Servomed Oxymonitor SM.361 system) were serially tested in atmospheres of nitrogen, air and 50% nitrous oxide in oxygen. Both TcPO2 electrodes reduced and "read" halothane but no enflurane. Calibration drift was significantly greater (p less than 0.05) after electrode exposure to halothane; 5.40 s.e.m. 1.37 kPa vs enflurane; -0.60 s.e.m. 0.93 kPa. Halothane has a direct effect in rendering the Transoxode inaccurate, which is probably clinically less important than the indirect cardiovascularly medicated influence of both halothane and enflurane on TcPO2 levels. A reduction in the electrode polarisation voltage is recommended to obviate the direct effect of halothane on Transoxode performance.

journal_name

Anaesth Intensive Care

authors

Downing JW,Mankowitz M,Brock-Utne JG,Holloway AM

doi

10.1177/0310057X8100900207

subject

Has Abstract

pub_date

1981-05-01 00:00:00

pages

140-3

issue

2

eissn

0310-057X

issn

1448-0271

journal_volume

9

pub_type

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