TY - JOUR
T1 - Heart Rate Variability and Coronary Artery Bypass Grafting
T2 - A Systematic Review
AU - Matusik, Patrycja S.
AU - Alomar, Omar
AU - Hussain, Maryam Rafaqat
AU - Akrmah, Muhammad
AU - Matusik, Paweł T.
AU - Chen, Daniel M.
AU - Alomar, Muhammed
AU - Stein, Phyllis K.
N1 - Publisher Copyright:
Copyright: © 2024 The Author(s). Published by IMR Press.
PY - 2024
Y1 - 2024
N2 - Background: Coronary artery bypass grafting (CABG) is a well-established surgical procedure used to treat significant coronary artery disease. Nevertheless, unfavorable cardiovascular events and complications, including cardiac arrhythmias may be observed in patients after CABG. Previous studies have revealed a relationship between risk of cardiac arrhythmias and abnormal heart rate variability (HRV), which reflects adverse alterations in cardiac autonomic functioning, that may occur in patients after a CABG procedure. The aim of this article was to provide a systematic review of the major research findings in this area. Methods: A literature search was carried out using PubMed, Cochrane, and Embase databases and relevant articles, published in English, were analyzed in detail. Results: Studies performed so far have shown time depending changes in HRV after CABG. Time and frequency domain HRV decrease acutely after CABG but recover almost completely to pre-operative values by 6 months after surgery. Some preoperative clinical states such as: heart failure, type 2 diabetes mellitus and depression adversely affect post-CABG HRV. Finally, post-CABG cardiac rehabilitation appears to improve exercise capacity and speed up recovery of HRV. Conclusions: Generally, traditional time and frequency domain HRV parameters fail to predict complications post-CABG. Altered non-linear measures of HRV may identify subgroups of subjects at increased risk of potential complications, including atrial fibrillation post-CABG. However, data available currently does not appear to unequivocally support the hypothesis that early HRV assessment in post-CABG patients predicts long-term mortality.
AB - Background: Coronary artery bypass grafting (CABG) is a well-established surgical procedure used to treat significant coronary artery disease. Nevertheless, unfavorable cardiovascular events and complications, including cardiac arrhythmias may be observed in patients after CABG. Previous studies have revealed a relationship between risk of cardiac arrhythmias and abnormal heart rate variability (HRV), which reflects adverse alterations in cardiac autonomic functioning, that may occur in patients after a CABG procedure. The aim of this article was to provide a systematic review of the major research findings in this area. Methods: A literature search was carried out using PubMed, Cochrane, and Embase databases and relevant articles, published in English, were analyzed in detail. Results: Studies performed so far have shown time depending changes in HRV after CABG. Time and frequency domain HRV decrease acutely after CABG but recover almost completely to pre-operative values by 6 months after surgery. Some preoperative clinical states such as: heart failure, type 2 diabetes mellitus and depression adversely affect post-CABG HRV. Finally, post-CABG cardiac rehabilitation appears to improve exercise capacity and speed up recovery of HRV. Conclusions: Generally, traditional time and frequency domain HRV parameters fail to predict complications post-CABG. Altered non-linear measures of HRV may identify subgroups of subjects at increased risk of potential complications, including atrial fibrillation post-CABG. However, data available currently does not appear to unequivocally support the hypothesis that early HRV assessment in post-CABG patients predicts long-term mortality.
KW - atrial fibrillation
KW - coronary artery bypass grafting surgery
KW - heart rate variability
KW - mortality
KW - rehabilitation
UR - http://www.scopus.com/inward/record.url?scp=85183987629&partnerID=8YFLogxK
U2 - 10.31083/j.rcm2501036
DO - 10.31083/j.rcm2501036
M3 - Review article
C2 - 39077663
AN - SCOPUS:85183987629
SN - 1530-6550
VL - 25
JO - Reviews in Cardiovascular Medicine
JF - Reviews in Cardiovascular Medicine
IS - 1
M1 - 36
ER -