학술논문
SYNTAX score effect on electroencephalography power dynamics in patients undergoing on-pump coronary artery bypass grafting
Document Type
Report
Author
Source
BMC Neuroscience. September 6, 2013, Vol. 14
Subject
Language
English
ISSN
1471-2202
Abstract
Author(s): Irina V Tarasova[sup.1] , Roman S Tarasov[sup.2] , Olga A Trubnikova[sup.2] , Olga L Barbarash[sup.3] and Leonid S Barbarash[sup.4] Background Ischemic brain damage, a frequent complication of cardiac on-pump [...]
Background The severity of angiographically assessed coronary artery disease may be the factor that influences the degree of brain damage during on-pump surgery. Modern technology such as computed electroencephalography (EEG) that is used to detect signs of brain damage could also be used to determine the advantages and disadvantages of various surgical myocardial revascularization methods in certain categories of patients. The present study investigated EEG power dynamics for 1 postoperative month in patients undergoing on-pump coronary artery bypass grafting (CABG) who were divided into two groups: those with moderate coronary lesions (SYNTAX score [less than or equai to] 22, n = 12) and those with severe coronary lesions (SYNTAX score [greater than or equai to] 23, n = 18). Results At 7-10 days after CABG, all patients showed theta type 1 rhythm power higher than that seen preoperatively, possibly indicating that brain damage occurred during bypass. At 1 month after CABG, the theta type 1 rhythm power had decreased to the baseline level in patients with SYNTAX scores of [less than or equai to]22, whereas it had increased in patients with SYNTAX scores [greater than or equai to]23. Conclusions SYNTAX scores [greater than or equai to] 23 are associated with EEG markers of perioperative brain damage during CABG. Careful preoperative assessment, preparation, and more effective intraoperative brain protection are essential for this category of coronary heart disease (CHD) patients. Keywords: Electroencephalography, Brain damage, Theta rhythm power, SYNTAX score, On-pump coronary artery bypass grafting
Background The severity of angiographically assessed coronary artery disease may be the factor that influences the degree of brain damage during on-pump surgery. Modern technology such as computed electroencephalography (EEG) that is used to detect signs of brain damage could also be used to determine the advantages and disadvantages of various surgical myocardial revascularization methods in certain categories of patients. The present study investigated EEG power dynamics for 1 postoperative month in patients undergoing on-pump coronary artery bypass grafting (CABG) who were divided into two groups: those with moderate coronary lesions (SYNTAX score [less than or equai to] 22, n = 12) and those with severe coronary lesions (SYNTAX score [greater than or equai to] 23, n = 18). Results At 7-10 days after CABG, all patients showed theta type 1 rhythm power higher than that seen preoperatively, possibly indicating that brain damage occurred during bypass. At 1 month after CABG, the theta type 1 rhythm power had decreased to the baseline level in patients with SYNTAX scores of [less than or equai to]22, whereas it had increased in patients with SYNTAX scores [greater than or equai to]23. Conclusions SYNTAX scores [greater than or equai to] 23 are associated with EEG markers of perioperative brain damage during CABG. Careful preoperative assessment, preparation, and more effective intraoperative brain protection are essential for this category of coronary heart disease (CHD) patients. Keywords: Electroencephalography, Brain damage, Theta rhythm power, SYNTAX score, On-pump coronary artery bypass grafting