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- Title
Does depth of the frontal sinus affect near-infrared spectroscopy measurement?
- Authors
Holmgaard, Frederik; Vedel, Anne G.; Langkilde, Annika; Nilsson, Jens C.; Ravn, Hanne Berg
- Abstract
Near-infrared spectroscopy (NIRS) is a non-invasive method that reflects real-time cerebral oxygenation (rSO2) by the use of two adhesive optodes placed on the forehead of the patient. Frontal sinuses vary anatomically and a large frontal sinus might compromise the NIRS signal since the NIRS optodes are placed at the skin surface superficial to the underlying frontal sinus. The aim of this case-series was to elucidate whether there is a difference in the obligate changes in rSO2 during cardiac surgery between patients with a small as opposed to a large anterior-posterior distance of the frontal sinus based on magnetic resonance imaging. Two matched groups with small (n = 5) vs. large (n = 5) frontal sinus (3.2 vs. 18.1 millimeters) in this case-series showed no difference in obligate changes of rSO2 (p = 0.54).
- Subjects
DENMARK; FRONTAL sinus; ACTIVE oxygen in the body; BRAIN; ELECTRODES; CASE studies; NEAR infrared spectroscopy; PERFUSION; RETROSPECTIVE studies; ANATOMY
- Publication
Perfusion, 2016, Vol 31, Issue 8, p659
- ISSN
0267-6591
- Publication type
Article
- DOI
10.1177/0267659116649425