Why the study?
Does progressive reduction in heart rate variability predict sudden death in patients with old myocardial infarction and congestive heart failure?
Does progressive reduction in heart rate variability predict sudden death in patients with old myocardial infarction and congestive heart failure?
Sequential measurements of heart rate variability showing progressive reduction may be useful in predicting sudden death in patients with heart failure and prior myocardial infarction.
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Serial HRV decline may flag impending sudden death in post-MI HF; hypothesis-generating and requires prospective validation before any clinical use.
Nakagawa et al. (1994) studied this question.
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