Key result
Decreased heart rate variability had no prognostic significance in patients who underwent CABG, who had significantly lower mortality than MI patients (8% vs 33%, P<0.001).
Why the study?
Does decreased heart rate variability have prognostic value in patients who have undergone CABG compared to those with MI?
Population
175 consecutive patients with decreased heart rate variability detected by 24-h Holter ECG 3 weeks to 3…
Comparison
Coronary artery bypass grafting (CABG) vs Myocardial infarction (MI)
Design
Cohort
Follow-up
46 +/- 20 months
Authors
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HRV lacks prognostic value after CABG unlike post-MI; leaves open its utility and mechanisms in surgical cohorts.
Cohort (n=175)
Does decreased heart rate variability have prognostic value in patients who have undergone CABG compared to those with MI?
Absolute Event Rate: 8% vs 33%
p-value: p=<0.001
Unlike in patients with myocardial infarction, decreased heart rate variability following coronary artery bypass grafting does not carry adverse prognostic significance.
Miličević et al. (2004) conducted a cohort in Decreased heart rate variability after MI or CABG (n=175). Coronary artery bypass grafting (CABG) vs. Myocardial infarction (MI) was evaluated on Mortality (p=<0.001). Decreased heart rate variability had no prognostic significance in patients who underwent CABG, who had significantly lower mortality than MI patients (8% vs 33%, P<0.001).
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