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The association between meteorological events and acute heart failure: New insights from ASCEND-HF.
- Source :
-
International Journal of Cardiology . Dec2014, Vol. 177 Issue 3, p819-824. 6p. - Publication Year :
- 2014
-
Abstract
- Introduction: Given the rising prevalence of heart failure (HF), our objective is to explore the relationships between meteorological events and acute HF (AHF) globally. Methods: We used data from 30 countries participating in the ASCEND-HF trial. Parameters including temperature were normalized by location for the 37 days prior to the HF event. Meteorological events were classified as a change that occurred < 10% compared to baseline. The 7 days prior to the HF event was subdivided: T1: the day of and − 1 day; T2: 2 and 3 days; T3: 4 and 5 days; and T4: 6 and 7 days. Results are reported as ratios of observed to expected weather events at the time of AHF presentation. Results: From 7141 patients, median age was 67 (IQR 56–76) with 66% male patients and 60% of patients with ischemic cardiomyopathy. In T1, temperatures were warmer than expected with 10% fewer decreases in average [OR 0.91 95% CI (0.83–0.98)] and minimum [OR 0.90 95% CI (0.82–0.97)] temperature. In T2, temperatures were again warmer than expected with an excess number of increases in maximum [OR 1.18 95% CI (1.06–1.30)] and average [OR 1.21 95% CI (1.10–1.32)] temperature. In T4 temperatures were cooler than baseline with fewer increases [OR 0.84 95% CI (0.74–0.95)] in average temperature. Conclusions: Meteorological fluctuations appear most relevant in the 3 days (T1 and T2) prior to the HF hospitalization with temperature demonstrating a bidirectional relationship with AHF. Continued validation of biometeorological trends in HF will contribute to healthcare system planning globally. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01675273
- Volume :
- 177
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- International Journal of Cardiology
- Publication Type :
- Academic Journal
- Accession number :
- 99758354
- Full Text :
- https://doi.org/10.1016/j.ijcard.2014.11.066