High ectopy burden is linked to cardiovascular events
Over four years, cardiovascular events occurred in 21% of adults with high atrial ectopic burden versus 14% with low, and 29% versus 12% for ventricular burden.
Limit: Survival data covered only 840 of 931 adults, risking bias from missing participants
Edited by Boris Djordjevic · AgingResearch.News
Researchers in an observational cohort study analyzed 931 adults (average age 52 years, 12% female) without structural heart disease, left ventricular dysfunction (impaired pumping in the main heart chamber), or major illnesses. Participants completed continuous Holter heart monitoring and exercise testing between 2010 and 2022. Researchers measured ectopic burden, a composite tracking premature beats and short abnormal rhythms in the upper chambers (atrial) or lower chambers (ventricular).
Survival data were available for 840 participants. Over a median follow-up of 4 years, 150 participants (18%) experienced a first cardiovascular event: 70 ischemic events, 57 strokes, 29 heart failure hospitalizations, and one cardiovascular death. High atrial ectopic burden was associated with more events than low burden (21% versus 14%, adjusted hazard ratio 1.53). High ventricular ectopic burden was linked to events in 29% of participants versus 12% with low burden (adjusted hazard ratio 2.82).
Why it matters
Because ectopic heartbeats increase with age, the researchers suggest that electrophysiologic aging may be an overlooked component of cardiovascular risk prediction. Tracking this electrical activity during routine monitoring could help identify hidden cardiovascular risk in people who otherwise appear healthy.
Caveats
The observational design shows associations rather than cause, and the data come from a conference abstract. In addition, only 12% of participants were female, and the findings may not apply to women or to people with structural heart disease.
The paper
From benign to prognostic: ectopy burden predicts long-term cardiovascular events
