In:
European Stroke Journal, SAGE Publications, Vol. 7, No. 4 ( 2022-12), p. 384-392
Abstract:
The aim of endovascular treatment (EVT) for acute ischaemic stroke is to relieve the cerebral tissue hypoxia in the area supplied by the occluded artery. Near-infrared spectroscopy (NIRS) monitoring is developed to assess regional cerebral tissue oxygen haemoglobin saturation (rSO 2 ). We aimed to investigate whether NIRS can detect inter- and intra-hemispheric rSO 2 differences during EVT. Patients and methods: In this prospective, observational study, patients undergoing EVT for a proximal intracranial occlusion of the anterior circulation between May 2019 and November 2020, were included. A four-wavelength NIRS monitor (O3 ® Regional Oximeter (Masimo, Irvine, CA)) was used to measure rSO 2 during EVT with sensors placed over the temporal lobes in 20 patients and over the frontal lobes in 13 patients. The Wilcoxon signed-rank test was used to test for inter-hemispheric rSO 2 differences after groin puncture and after recanalisation, and intra-hemispheric rSO 2 changes before and after recanalisation. Results: In the temporal cohort, no inter-hemispheric rSO 2 differences were observed after groin puncture (median [IQR] rSO 2 affected hemisphere, 70% [67–73] and unaffected hemisphere, 70% [66–72] ; p = 0.79) and after recanalisation. There were no intra-hemispheric rSO 2 changes over time. In the frontal cohort, no inter- and intra-hemispheric rSO 2 differences or changes were found. Discussion and conclusion: A NIRS monitor could not detect inter- and intra-hemispheric rSO 2 differences or changes during EVT, irrespective of the sensor position. It is likely that even with temporal sensor application, a significant proportion of the received NIRS signal was influenced by oxygenation of surrounding tissues.
Type of Medium:
Online Resource
ISSN:
2396-9873
,
2396-9881
DOI:
10.1177/23969873221107824
Language:
English
Publisher:
SAGE Publications
Publication Date:
2022
detail.hit.zdb_id:
2851287-X
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