Évaluation de la reproductibilité de la mesure transcutanée de la pression partielle d’oxygène (TcPO 2) au niveau de la main

Abstract

Introduction: Several reports suggest the usefulness of transcutaneous oxygen tension (TcPO 2) in assessing the shoulder hand syndrome in stroke patients. But the literature presents a number of conflicting views on the variation of TcPO 2 values in this case. We found no report demonstrating the reliability of TcPO 2 measurements in the upper limb. The aim of this study was to evaluate the reliability of TcPO 2 measurements and investigate whether TcPO 2 can be used to evaluate the shoulder hand syndrome after stroke. Material and methods: The TcPO 2 values were obtained on two separate occasions at one-day interval on 18 normal volunteers. Basal TcPO 2, local vasomotor reflex and reaction to ischemia were assessed. Results: Thirty-six upper limbs were tested. The reliability was bad. We found that measurements of TcPO 2 varied by an average of 7.89 ± 7.6 mmHg for a coefficient of variation of 96%. Conclusion: The reliability of TcPO 2 measurement was not sufficient to recommend this method in this indication.