The Effects of Near-Infrared Spectroscopy on the Neurocognitive Functions in the Patients Undergoing Coronary Artery Bypass Grafting with Asymptomatic Carotid Artery Disease: A Randomized Prospective Study.

Abstract

PURPOSE:

The purpose of this study was to research the use of near-infrared spectroscopy (NIRS) on the neurocognitive functions in the patients undergoing coronary artery bypass grafting (CABG) with asymptomatic carotid artery disease.

METHODS:

The study design was carried out with the participation of 79 patients in a prospective, randomized and double blind control method. The patients were separated into two groups as NIRS (n = 43) and no NIRS (n = 36). A neurocognitive test was applied preoperatively and postoperatively to all patients before discharge. Cognitive functions were evaluated by applying the Montreal Cognitive Assessment test (MoCA).

RESULTS:

The decrease in the postoperative score of mean MoCA in no NIRS group was statistically significant when compared to preoperatively (p <0.001). Postoperative mean MoCA score was found to be significantly higher in NIRS group (NIRS: 26.8 ± 1.9 vs. no NIRS: 23.6 ± 2.5, p <0.001). It has been determined that there was a moderately positive significant correlation between the increase in the NIRS used patients (%) and increase in the MoCA score of the patients (r = 0.59, p <0.001).

CONCLUSION:

Intraoperative NIRS usage in the patients undergoing CABG with carotid artery disease might be useful due to its postoperative positive effects on the cognitive functions.

• Authors: Ibrahim Kara, Alper Erkin, Hakan Saclı, Mucahit Demirtas, Bilal Percin, Mevriye Serpil Diler, Kaan Kırali
• Journal: Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia (Ann Thorac Cardiovasc Surg) Vol. 21 Issue 6 Pg. 544-50 ( 2015) ISSN: 2186-1005 [Electronic] Japan
• PMID: 26133933 (Publication Type: Journal Article, Randomized Controlled Trial)

Topics

• Carotid Artery Diseases (complications)
• Cognition (physiology)
• Coronary Artery Bypass
• Double-Blind Method
• Humans
• Male
• Middle Aged
• Neuropsychological Tests
• Oximetry
• Prospective Studies
• Spectroscopy, Near-Infrared