Why the study?
Do sustained slow heart rates and abnormal heart rate responses increase the risk of sudden cardiac death in middle-aged men with cardiopulmonary disease?
Population
301 middle-aged or older men with coronary heart disease, hypertension, or pulmonary disease
Comparison
Sustained slow heart rates, low peak rate… vs Expected normal heart rate responses and…
Design
Cohort
Follow-up
7 years
Authors
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May flag higher sudden death risk in middle-aged men with cardiopulmonary disease; leaves open whether responses independently predict events or warrant intervention.
Do sustained slow heart rates and abnormal heart rate responses increase the risk of sudden cardiac death in middle-aged men with cardiopulmonary disease?
Sustained slow heart rates and blunted chronotropic responses in middle-aged men with cardiopulmonary disease are associated with an increased risk of sudden cardiac death.
Lawrence E. Hinkle (1972) studied this question.
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