The daily incidence of acute heart failure is correlated with low minimal night temperature: cold immersion pulmonary edema revisited?

Journal of Cardiac Failure
Olga Milo-CotterGad Cotter

Abstract

Previous studies suggested a higher incidence of acute heart failure (AHF) during cold months in regions with cold climate. We examined the daily incidence of AHF by same-day trough temperature and humidity in a warmer region. All admissions for AHF (340 patients) to a city hospital, providing the sole emergency medical care to a geographical region of approximately 500,000 people were recorded. Patients were followed through admission and for 6 months after discharge. Low minimal trough temperature was associated with an increase in the same-day AHF incidence. Lowest tercile trough night temperatures were associated with higher AHF incidence (3.5 +/- 2.1 versus 2.4 +/- 1.6, events/24 hours, P = .012). This association was mainly from increased AHF events in nights with the predetermined trough temperature of <7 degrees C (4 +/- 2.1 versus 2.5 +/- 1.7, events/24 hours, P = .0013). This association persisted even after excluding the coldest consecutive 30 days from the analysis. Humidity was not associated with increased AHF event rate. In a post-hoc analysis we have observed doubling of 6-month mortality in patients admitted with AHF during days with lower trough night temperature, despite no apparent worse baseline characteris...Continue Reading

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Sep 20, 2012·International Journal of Biometeorology·L McGuinnR Harrison
Nov 15, 2007·Infectious Agents and Cancer·Nikolai A Shevchuk, Sasa Radoja
Nov 26, 2014·Circulation Journal : Official Journal of the Japanese Circulation Society·Masayuki HiraiKazuhiro Yamamoto
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