Why the study?
Is heart rate variability reduced in patients with acute myocardial infarction compared to age-matched controls?
Population
25 patients admitted with acute myocardial infarction and 23 age-matched controls (total n=48).
Comparison
Acute myocardial infarction vs Age-matched control group
Design
Case-control
Follow-up
Mean 9 to 13 days after admission for various tests
Authors
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Reduced HRV in acute MI may inform early prognosis; confirms association with LVEF but leaves open prospective validation.
Is heart rate variability reduced in patients with acute myocardial infarction compared to age-matched controls?
Heart rate variability is significantly reduced in the acute phase of myocardial infarction and correlates with left ventricular ejection fraction.
Lee et al. (1997) studied this question.
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