Abstract:
: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.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Lakusic N,Mahovic D,Kruzliak P,Cerkez Habek J,Novak M,Cerovec Ddoi
10.1155/2015/680515subject
Has Abstractpub_date
2015-01-01 00:00:00pages
680515eissn
2314-6133issn
2314-6141journal_volume
2015pub_type
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