Impact of seasonal temperature variations on adverse outcomes in atrial fibrillation: comparative insights from Vigo and Murcia cohorts
Summer heat reduces heart rhythm complications in adapted populations, but extreme heat increases stroke risk, requiring seasonal care adjustments.
This prospective study of 13,629 AF patients across two Spanish climate zones found that summer reduces cardiovascular events vs winter in heat-adapted populations, but extreme summer heat significantly increases ischemic stroke and MACE risk. The findings have direct clinical implications for AF management protocols and patient counseling during seasonal temperature extremes.
What the study was
- Study design
- Prospective comparative cohort study (n=13,629, 2 Spanish cities, 2-year follow-up)
- Population
- Anticoagulated atrial fibrillation patients (median age 78y, 53.4% female)
- Sample size
- 13629
- Category
- Public Health
- Maturity
- Validated
- Journal
- Journal of global health
Why it surfaced
Large prospective AF cohort with actionable climate-cardiovascular interaction finding; directly relevant to clinical guidance during seasonal extremes.
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