Continuous direct tissue oxygen tension measurement. A new application for an intravascular oxygen sensor

V E Hjortdal, E J Timmenga, D Kjølseth, T Brink Henriksen, E Stender Hansen, J C Djurhuus, F Gottrup

Abstract

An oxygen tension measurement equipment, developed for continuous intravascular monitoring was tested as a direct tissue oxygen tension meter. The sterile disposable oxygen probe consists of a Clark type polaro-graphic bipolar electrode placed in a 5 cm long flexible polyethylene catheter (OD 0.55 mm). The probe is easily placed, e.g. in subcutaneous tissue or muscle, with the aid of an introduction needle. In vitro measurements as well as subcutaneous and intramuscular readings were performed. The animals were subjected to various experimental conditions such as different inspiratory oxygen fractions, hypovolemia, and circulatory impairment. Results were comparable to those obtained with previously used and well characterized tissue oxygen tension measurement equipment. The clinical applicability of the oxygen sensor for tissue oxygen measurement was assessed in one patient by 40 hours' surveillance in a free myocutaneous flap. The procedure was simple and implied minimal discomfort for the patient.

OriginalsprogEngelsk
TidsskriftAnnales Chirurgiae et Gynaecologiae
Vol/bind80
Udgave nummer1
Sider (fra-til)8-13
Antal sider6
ISSN0355-9521
StatusUdgivet - 1991
Udgivet eksterntJa

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