ArticleJournal of the American Heart Association2025
Extreme Heat and Arrhythmia in Patients With Implanted Devices.
Article in Journal of the American Heart Association, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
1 citing paper in PubMed.
- Night-To-Night Variability in Sleep Apnea Is Associated With Persistence and Burden of Device-Detected Atrial Fibrillation.Journal of sleep research · 2026Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundArrhythmia, particularly atrial fibrillation, is on the rise globally. While increased surveillance, aging populations, and other risk factors partially explain this rise, emerging risks such as extreme heat from climate change are underexplored.
methodsWe used Product Surveillance Registry by Medtronic (2016-2023) in the United States to examine patients with implantable cardioverter-defibrillator or cardiac resynchronization therapy defibrillator devices. We identified first arrhythmic episodes (atrial tachycardia/fibrillation [AT/AF] or ventricular tachycardia/fibrillation) recorded by devices. Events were matched to ambient temperatures from local weather stations. We used a case-crossover design where each arrhythmia event hour was matched with multiple control hours from the same patient, within the same day of week, month, and year. Conditional logistic models were then pooled across all climate zones in the United States to obtain nonlinear dose-response between temperature and arrhythmia.
resultsOur analysis included 3079 individuals across 103 cities. Fewer AT/AF and ventricular tachycardia/fibrillation events occurred during early morning hours (1 am-8 am) compared with daytime hours (9 am-4 pm) (
conclusionsExtreme hot outdoor temperatures were significantly associated with higher odds of AF episodes.
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Registered trials
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