AFib Differences Between Women, Men

Adult Cardiac: Arrhythmia


11:30 a.m. – 12:30 p.m.

Room 310ABC

New-onset atrial fibrillation (AFib) after coronary artery bypass grafting (CABG) surgery has decreased in recent years, but an abstract being presented today has found that incidence has decreased more among women than men.

The differences between women and men in incidence and duration of AFib post-CABG were examined in a study of data from the STS National Database. The data were augmented with continuous in-­hospital electrocardiography/telemetry monitoring.

“We were very careful about making sure we captured every single episode of AFib and its details,” said lead author Giovanni Filardo, PhD, MPH, of Baylor Scott & White Health in Dallas. “We investigated the epidemiology of post-CABG AFib and gender differences in terms of incidence, timing, type, and duration of each single AFib episode, and the changing trends over time.”

The abstract, “Sex Differences in the Epidemiology of New-Onset Post-Coronary Artery Bypass Grafting Atrial Fibrillation: A Large, Multicenter Study,” found that from 2002 to 2010, adjusted new-onset AFib in women decreased from 36% to 24%, while in men it decreased from 42% to 31%. Following adjustment for STS-recognized risk factors, women had significantly lower risk for post-­CABG AFib, as well as shorter durations of first and longest AFib episodes and total time in AFib.

“Women are doing significantly better, and that is very important,” Dr. Filardo said. “We are working on understanding why. Our next paper will be on assessing whether certain prevention and management strategies lead to better prevention and/or long-term survival.”

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