title: 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: OBJECTIVE
  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).
  
  
  CONCLUSIONS
  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.affiliation: Sakarya University, Faculty of Medicine, Department of Cardiovascular Surgery, Sakarya, Turkey.
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Kara
authors.forename: Alper
authors.initials: A
authors.lastname: Erkin
authors.forename: Hakan
authors.initials: H
authors.lastname: Saclı
authors.forename: Mucahit
authors.initials: M
authors.lastname: Demirtas
authors.forename: Bilal
authors.initials: B
authors.lastname: Percin
authors.forename: Mevriye Serpil
authors.initials: MS
authors.lastname: Diler
authors.forename: Kaan
authors.initials: K
authors.lastname: Kırali
mesh_terms: D002340:Carotid Artery Diseases / Q000150:complications*; D003071:Cognition / Q000502:physiology; D001026:Coronary Artery Bypass; D004311:Double-Blind Method; D006801:Humans; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D010092:Oximetry; D011446:Prospective Studies; D019265:Spectroscopy, Near-Infrared