Near infrared spectroscopy (NIRS) measurements following subarachnoid hemorrhage (SAH)

Potential for the detection of vasospasm

Alfredo Martinez-Coll*, Michael K. Morgan, Hung Nguyen, Stephen N. Hunyor

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

1 Citation (Scopus)

Abstract

Bilateral NIRS measurements of relative blood volume (BV) and oxygen saturation (DESAT) from frontal, temporal and parietal regions were acquired daily (n = 42) in 4 SAH patients (supine and with the head elevated 30 degrees) and compared with subtraction angiography for the detection of vasospasm. Significant differences in NIRS signals were found exclusively in one patient who developed vasospasm. There were significant differences in DESAT (right vs. left temporal region [supine], p = .003); while head elevated data revealed side to side differences for individual wavelengths as well as for BV and DESAT in the temporal and frontal regions, respectively. Differences were also found between periods of spasm and non-spasm for BV in the left parietal (p = .035) and left frontal (p = .023) region. Angiographically confirmed vasospasm was confined to the internal carotid and middle cerebral arteries on the left side. NIRS showed differences only in the affected side, and although not able to identify the location of the spasm, the technique may prove useful in the routine, daily assessment, of these patients.

Original languageEnglish
Title of host publicationProceedings of the First Joint IEEE Engineering in Medicine and Biology 21st Annual Conference and 2009 Fall Meeting of the Biomedical Engineering Society
Place of PublicationNew York
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages826
Number of pages1
Volume2
ISBN (Print)0780356756, 9780780356757, 0780356748
Publication statusPublished - 1999
Externally publishedYes
EventProceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS) - Atlanta, GA, USA
Duration: 13 Oct 199916 Oct 1999

Other

OtherProceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS)
CityAtlanta, GA, USA
Period13/10/9916/10/99

Fingerprint Dive into the research topics of 'Near infrared spectroscopy (NIRS) measurements following subarachnoid hemorrhage (SAH): Potential for the detection of vasospasm'. Together they form a unique fingerprint.

Cite this