Prognostic significance of prolonged PR interval in the general population

Conclusion
In the middle-aged general population, prolonged PR interval normalizes in a substantial proportion of subjects during the time course, and it is not associated with an increased risk of all-cause or cardiovascular mortality.

Source: European Heart Journal - January 7, 2014 Category: Cardiology Authors: Aro, A. L., Anttonen, O., Kerola, T., Junttila, M. J., Tikkanen, J. T., Rissanen, H. A., Reunanen, A., Huikuri, H. V. Tags: Arrhythmia/electrophysiology Source Type: research