The Impacts of Warming on Myocardial Infarctions and Acute Coronary Angiographies
Wanitschek, M., Ulmer, H., Sussenbacher, A., Dorler, J., Pachinger, O. and Alber, H.F. 2013. Warm winter is associated with low incidence of ST elevation myocardial infarctions and less frequent acute coronary angiographies in an alpine country. Herz 38: 163-170.
Noting that the 2005/2006 winter was very cold, while the 2006/2007 winter was extraordinarily warm, Wanitschek et al. studied the cases of patients who were suffering acute myocardial infarctions and had been referred to the University Clinic of Internal Medicine III (Cardiology) at Innsbruck Medical University, Tyrol, Austria, for coronary angiography (CA), comparing their risk factors and in-hospital mortality rates between these two consecutive winters, the latter of which was 7.5°C warmer than the former.
According to the six Austrian researchers, in terms of the colder winter vs. the warmer winter, the percentages of an essentially identical total CA in each winter (987 vs. 983) that were acute CA were 12.9 vs. 10.4%, while diagnoses of STEMI (ST Elevation Myocardial Infarction) as an indication of acute CA were 74.0 vs. 62.7%.
In the words of Wanitschek et al., "the average temperature increase of 7.5°C from the cold to the warm winter was associated with a decrease in acute coronary angiographies, in particular due to a lower incidence of STEMI referred for primary percutaneous intervention." And that is one great benefit.
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