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Heart rate variability decreased by coronary artery surgery has no prognostic value
Background Decreased heart rate variability (HRV) may predict cardiac death after myocardial infarction (MI). Coronary artery bypass grafting (CABG) strongly decreases HRV, but improves survival. The aim of the study was to determine the prognostic value of HRV decreased by coronary surgery. Design...
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Published in: | European journal of cardiovascular prevention and rehabilitation 2004-06, Vol.11 (3), p.228-232 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Background
Decreased heart rate variability (HRV) may predict cardiac death after
myocardial infarction (MI). Coronary artery bypass grafting (CABG) strongly
decreases HRV, but improves survival. The aim of the study was to determine
the prognostic value of HRV decreased by coronary surgery.
Design and methods
Four-year follow-up was performed in 175 consecutive patients with HRV
decreased by CABG (51) or MI (124). Mortality and secondary events rate were
analysed. Decreased HRV, defined by the standard deviation of mean RR
interval (SDNN) < 100 ms, was detected by a routine 24-h Holter
electrocardiogram at admission to stationary rehabilitation 3 weeks to 3
months after acute MI or CABG. Two groups did not differ except by age; CABG
patients were younger (56 versus 64 years, P |
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ISSN: | 2047-4873 1741-8267 2047-4881 |
DOI: | 10.1097/01.hjr.0000129743.53464.c0 |