Why the study?
Does a prolonged PR interval increase the risk of mortality or cardiovascular hospitalizations in a middle-aged general population?
Population
10,785 individuals from the general population aged 30-59 years (mean age 44 years, 52% males).
Comparison
Prolonged PR interval vs Normal PR interval (≤200 ms)
Design
Cohort
Follow-up
30 ± 11 years
Authors
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May reassure on benign prognosis in middle-aged adults; leaves open generalizability to older or higher-risk groups.
Does a prolonged PR interval increase the risk of mortality or cardiovascular hospitalizations in a middle-aged general population?
In a middle-aged general population, a prolonged PR interval is a benign finding that often normalizes over time and is not associated with increased long-term mortality or cardiovascular morbidity.
Aro et al. (2013) studied this question.
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