Summer was associated with a 37% lower risk of major adverse cardiovascular events compared with winter in anticoagulated atrial fibrillation patients living in the heat-adapted city of Murcia.
Cohort (n=13,629)
Yes
Does seasonal temperature variation affect the risk of adverse cardiovascular events in patients with atrial fibrillation?
In patients with atrial fibrillation, summer generally lowers cardiovascular risk compared to winter, but extreme heat significantly increases it.
Effect estimate: aHR 0.63 (95% CI 0.45-0.89)
Absolute Event Rate: 1.96% vs 3.13%
p-value: p=0.008
Summer was associated with a lower risk of adverse cardiovascular events compared with winter in patients with AF living in heat-adapted cities. However, extreme heat was associated with a significantly increased cardiovascular risk.
Soler-Espejo et al. (Thu,) conducted a cohort in Atrial fibrillation (n=13,629). Summer season vs. Winter season was evaluated on Major adverse cardiovascular events (MACE) in Murcia cohort (aHR 0.63, 95% CI 0.45-0.89, p=0.008). Summer was associated with a 37% lower risk of major adverse cardiovascular events compared with winter in anticoagulated atrial fibrillation patients living in the heat-adapted city of Murcia.
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