Drier air, lower temperatures, and triggering of paroxysmal atrial fibrillation

Epidemiology
Jennifer L NguyenD W Dockery

Abstract

The few previous studies on the onset of paroxysmal atrial fibrillation and meteorologic conditions have focused on outdoor temperature and hospital admissions, but hospital admissions are a crude indicator of atrial fibrillation incidence, and studies have found other weather measures in addition to temperature to be associated with cardiovascular outcomes. Two hundred patients with dual chamber implantable cardioverter-defibrillators were enrolled and followed prospectively from 2006 to 2010 for new onset episodes of atrial fibrillation. The date and time of arrhythmia episodes documented by the implanted cardioverter-defibrillators were linked to meteorologic data and examined using a case-crossover analysis. We evaluated associations with outdoor temperature, apparent temperature, air pressure, and three measures of humidity (relative humidity, dew point, and absolute humidity). Of the 200 enrolled patients, 49 patients experienced 328 atrial fibrillation episodes lasting ≥30 seconds. Lower temperatures in the prior 48 hours were positively associated with atrial fibrillation. Lower absolute humidity (ie, drier air) had the strongest and most consistent association: each 0.5 g/m decrease in the prior 24 hours increased the ...Continue Reading

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Citations

Dec 22, 2016·Journal of the Air & Waste Management Association·Antonella ZanobettiJoel Schwartz
May 19, 2017·Nature Reviews. Cardiology·Simon StewartJohn J V McMurray
Jun 1, 2017·European Journal of Gastroenterology & Hepatology·Takefumi KimuraEiji Tanaka
Jan 19, 2018·Prehospital Emergency Care : Official Journal of the National Association of EMS Physicians and the National Association of State EMS Directors·Mario HenselThoralf Kerner
Feb 7, 2020·Clinical Oral Investigations·S SpalthoffJ Dittmann
Oct 27, 2015·Environmental Research Letters : ERL [Web Site]·Patrick L KinneyRobert Vautard

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