PR-Interval Components and Atrial Fibrillation Risk (from the Atherosclerosis Risk in Communities Study).

ABSTRACT: Reports on the association between the PR-interval and atrial fibrillation (AF) are conflicting. We hypothesized that inconsistencies stem from that fact that the PR-interval represents a composite of several distinct components. We examined the associations of the PR-interval and its components (P-wave onset to P-wave peak duration, P-wave peak to P-wave end duration, and PR-segment) with incident AF in 14,924 participants (mean age 54 ± 5.8 years; 26% black; 55% women) from the Atherosclerosis Risk In Communities study. The PR-interval and its components were automatically measured at baseline (1987 to 1989) from standard 12-lead electrocardiograms. PR-interval >200 ms was considered prolonged and values above the ninety-fifth percentile defined abnormal PR-interval components. AF was as

SUBMITTER: Smith JW 

PROVIDER: S-EPMC5531862 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature