⛈️❄️This week, we would like to highlight an article in which several members of our network played key roles entitled « The Impact of Meteorological Variables on Heart Failure Hospitalizations » published in JACC Advances by Stefano Coiro, Claire Lacomblez, Guillaume Baudry Francois Roubille, Oren Caspi, Luca Monzo, Kevin Duarte, Tahar Chouihed, MD, PhD, and Nicolas GIRERD. 🌨️ 🌤️
🌡️Indeed, the increased risk of hospitalizations for heart failure (HF) during cold weather is well known.
🌡️However, a wide range of meteorological variables and exposure periods may be taken into account.
🌡️This original study examined not only the effect of temperature, but also relative humidity, atmospheric pressure, and precipitation during different exposure periods.
🌡️This is a retrospective analysis of 4,512 patients admitted for acute dyspnea and diagnosed with acute HF in the emergency department of Nancy University Hospital (2010-2022 as part of the PARADISE study (Pathway of Dyspneic patients in Emergency).
🌡️A calculation of averages was performed for different periods prior to admission to the emergency department.
🌡️Multivariate Poisson regression showed an inverse association between temperature and hospitalizations for heart failure across all periods (incidence rate ratio [IRR] ∼0.90 for each 5°C increase; all P < 0.001) was demonstrated with multivariate Poisson regression.
🌡️This was compounded by an increase in precipitation over a week or a month (IRR for 5 mm = 1.11 and 1.18, respectively; P < 0.035 in both cases) and an increase in atmospheric pressure over a month (IRR for 5 hPa = 1.06; P = 0.003).
🌡️This paper concludes that temperature is independently associated with hospitalizations for heart failure, but the risk increases up to one week of exposure, allowing events related to heart failure to be predicted over this period.
The full article is available with open access here:
https://www.jacc.org/doi/10.1016/j.jacadv.2025.102359
JACC Adv. 2025 Dec;4(12 Pt 2):102359. doi: 10.1016/j.jacadv.2025.102359. PMID: 41447279.