scholarly journals Outcome of patients with normal and decreased heart rate variability coronary artery bypass grafting surgey

2021 ◽  
Vol 35 ◽  
pp. 115-123
Author(s):  
Ngo Van Thanh ◽  
Pham Truong Son ◽  
Nguyen Quang Tuan
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Coronary Artery ◽  
Coronary Artery Bypass Grafting ◽  
Coronary Artery Bypass ◽  
Cardiovascular Events ◽  
Artery Bypass ◽  
Major Adverse Cardiovascular Events ◽  
Bypass Grafting ◽  
Artery Bypass Grafting

Introduction and objectives: Previous studies have shown that after coronary artery bypass grafting (CABG), heart rate variability (HRV) becomes decreased. The aim of this study was to evaluate the role of decreased heart rate variability in coronary artery bypass grafting patients. Methods: The study involved 119 consecutive patients who underwent the first CABG operation with sinus rhythm. All subjects underwent assessed with 24-hour Holter recordings 2 days preoperative and 7 days postoperative at Hanoi Heart Hospital from 6/2016 to 8/2018. Major adverse cardiovascular events was defined as cardiac death, recurrent myocardial infarction, stroke, decompensated heart failure and re-hospitalization. The patients were followed up for 6 months. Main results: The incidence of major adverse cardiovascular events was 10.8% followed to 6 months. The incidence of pre and postoperative low HRV varies from 28.6% (preop) to 51.8% (postop 7 days). In which, decreased HRV preoperative predictors of major adverse cardiac events in patients undergoing coronary artery bypass graft surgery: followed up for 3 months: (OR:3,40; 95%CI: 0,97 – 12,11; p>0,05), followed up for 6 months (OR:3,41; 95%CI: 1,05 – 11,05; p<0,05). Conclusions: Preoperative with low HRV was pedict a risk factor for major adverse cardiovascular events.

Sequential changes in heart rate variability after coronary artery bypass grafting

1999 ◽  
Vol 83 (5) ◽  
pp. 776-779 ◽  
Author(s):  
Cheng-Deng Kuo ◽  
Gau-Yang Chen ◽  
Shiau-Ting Lai ◽  
Yia-Yi Wang ◽  
Chun-Che Shih ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Coronary Artery ◽  
Coronary Artery Bypass Grafting ◽  
Coronary Artery Bypass ◽  
Artery Bypass ◽  
Bypass Grafting ◽  
Artery Bypass Grafting

scholarly journals Changes in Heart Rate Variability after Coronary Artery Bypass Grafting and Clinical Importance of These Findings

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Nenad Lakusic ◽  
Darija Mahovic ◽  
Peter Kruzliak ◽  
Jasna Cerkez Habek ◽  
Miroslav Novak ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Coronary Artery ◽  
Coronary Artery Bypass Grafting ◽  
Coronary Artery Bypass ◽  
Current Knowledge ◽  
Artery Bypass ◽  
Bypass Grafting ◽  
Artery Bypass Grafting

Heart rate variability is a physiological feature indicating the influence of the autonomic nervous system on the heart rate. Association of the reduced heart rate variability due to myocardial infarction and the increased postinfarction mortality was first described more than thirty years ago. Many studies have unequivocally demonstrated that coronary artery bypass grafting surgery generally leads to significant reduction in heart rate variability, which is even more pronounced than after myocardial infarction. Pathophysiologically, however, the mechanisms of heart rate variability reduction associated with acute myocardial infarction and coronary artery bypass grafting are different. Generally, heart rate variability gradually recovers to the preoperative values within six months of the procedure. Unlike the reduced heart rate variability in patients having sustained myocardial infarction, a finding of reduced heart rate variability after coronary artery bypass surgery is not considered relevant in predicting mortality. Current knowledge about changes in heart rate variability in coronary patients and clinical relevance of such a finding in patients undergoing coronary artery bypass grafting are presented.

scholarly journals Changes in heart rate variability pre and postoperative coronary artery bypass grafting

2021 ◽  
Vol 35 ◽  
pp. 107-114
Author(s):  
Ngo Van Thanh ◽  
Pham Truong Son ◽  
Nguyen Quang Tuan
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Coronary Artery ◽  
Coronary Artery Bypass Grafting ◽  
Coronary Artery Bypass ◽  
Artery Bypass ◽  
Bypass Grafting ◽  
Artery Bypass Grafting ◽  
Parasympathetic Control ◽  
Heart Hospital

Introduction and objectives: Previous studies have shown that after coronary artery bypass grafting (CABG), heart rate variability (HRV) becomes decreased. The loss of the peripheral autonomic sympathetic and parasympathetic control in Sinoatrial Node in the form of an autonomic cardioneuropathy syndrome is the predictor of the pre and postoperative complications after CABG. The aim of this study was to establish the temporal pattern of change in the decrease of HRV observed after CABG. Methods: The study involved 119 consecutive patients who underwent the first CABG operation with sinus rhythm. All subjects underwent assessed with 24-hour Holter recordings 2 days preoperative and 7 days, 3 months, 6 months postoperative at Hanoi Heart Hospital from 6/2016 to 8/2018. Main results: All indicators of heart rate variability decreased to the lowest level after surgery 7 days, recovers to the preoperative values within three to six months of the procedure. The incidence of pre and postoperative low HRV varies from 28.6% (preop) to 51.8% (postop 7 days), 19.6% (postop 3 months) and 12.7% (postop 6 months). Conclusions: This study have showed that CABG surgery generally leads to significant reduction in HRV. HRV gradually recovers to the preoperative values within three to six months of the procedure.

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