The relationship between intraoperative cerebral oximetry and postoperative delirium in patients undergoing off-pump coronary artery bypass graft surgery: a retrospective study

Cerebral oximetry has been widely used to measure regional oxygen saturation in brain tissue, especially during cardiac surgery. Despite its popularity, there have been inconsistent results on the use of cerebral oximetry during cardiac surgery, and few studies have evaluated cerebral oximetry durin...

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Published in:BMC anesthesiology 2020-11, Vol.20 (1), p.285-285, Article 285
Main Authors: Lim, Leerang, Nam, Karam, Lee, Seohee, Cho, Youn Joung, Yeom, Chan-Woo, Jung, Sanghyup, Moon, Jung Yoon, Jeon, Yunseok
Format: Article
Language:English
Subjects:
Analysis
Cardiac arrhythmia
Cerebral oximetry
Coronary artery
Coronary artery bypass
Coronary vessels
Delirium
Electronic health records
General anesthesia
Heart
Heart surgery
Hospitals
Hypertension
Intensive care
Kidneys
Medical personnel
Medical records
Off-pump coronary artery bypass graft surgery
Oximetry
Oxygen
Oxygen saturation
Patients
Regression analysis
Surgery
Variables
Veins & arteries
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Summary:Cerebral oximetry has been widely used to measure regional oxygen saturation in brain tissue, especially during cardiac surgery. Despite its popularity, there have been inconsistent results on the use of cerebral oximetry during cardiac surgery, and few studies have evaluated cerebral oximetry during off pump coronary artery bypass graft surgery (OPCAB). To evaluate the relationship between intraoperative cerebral oximetry and postoperative delirium in patients who underwent OPCAB, we included 1439 patients who underwent OPCAB between October 2004 and December 2016 and among them, 815 patients with sufficient data on regional cerebral oxygen saturation (rSO ) were enrolled in this study. We retrospectively analyzed perioperative variables and the reduction in rSO below cut-off values of 75, 70, 65, 60, 55, 50, 45, 40, and 35%. Furthermore, we evaluated the relationship between the reduction in rSO and postoperative delirium. Delirium occurred in 105 of 815 patients. In both univariable and multivariable analyses, the duration of rSO reduction was significantly longer in patients with delirium at cut-offs of
ISSN:1471-2253
1471-2253
DOI:10.1186/s12871-020-01180-x