Near Infrared Spectroscopy for the Detection of Desaturations in Vulnerable Ischemic Brain Tissue

Author:

Aries Marcel J.H.1,Coumou Adriaan D.1,Elting Jan Willem J.1,van der Harst Joep J.1,Kremer Berry P.H.1,Vroomen Patrick C.A.J.1

Affiliation:

1. From the Department of Neurology, University Medical Centre Groningen, Groningen, The Netherlands.

Abstract

Background and Purpose— There is uncertainty whether bilateral near infrared spectroscopy (NIRS) can be used for monitoring of patients with acute stroke. Methods— The NIRS responsiveness to systemic and stroke-related changes was studied overnight by assessing the effects of brief peripheral arterial oxygenation and mean arterial pressure alterations in the affected versus nonaffected hemisphere in 9 patients with acute stroke. Results— Significantly more NIRS drops were registered in the affected compared with the nonaffected hemisphere (477 drops versus 184, P <0.001). In the affected hemispheres, nearly all peripheral arterial oxygenation drops (n=128; 96%) were detected by NIRS; in the nonaffected hemispheres only 23% (n=30; P =0.17). Only a few mean arterial pressure drops were followed by a significant NIRS drop. This was however significantly different between both hemispheres (32% versus 13%, P =0.01). Conclusions— This pilot study found good responsiveness of NIRS signal to systemic and stroke-related changes at the bedside but requires confirmation in a larger sample.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Advanced and Specialised Nursing,Cardiology and Cardiovascular Medicine,Clinical Neurology

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