HealthDay News — As fall approaches, new research presented at the annual European Society of Cardiology Congress, held from Aug. 29 to Sept. 2 in London suggests that cold weather may increase the risk of ischemic stroke and ST-elevation myocardial infarction (STEMI) in some people.
In one study, Tze-Fan Chao, MD, a cardiologist at the Taipei Veterans General Hospital and National Yang-Ming University in Taiwan, and colleagues compared daily temperature records in six regions of Taiwan between 2000 and 2011 and the incidence of ischemic stroke among 289,559 new-onset atrial fibrillation patients. The analysis revealed stroke risk rose by 10% in spring and nearly 20% in winter, as compared with summertime risk.
A second study led by researchers from the University of Manitoba in Winnipeg, Canada, found that with every 20-degree Fahrenheit drop in temperature, the risk for experiencing STEMI went up by 7%.
“We demonstrated that there is a clear relationship between daily temperature and the risk of STEMI,” study author Shuangbo Liu, MD, an adult cardiology resident at the University of Manitoba, noted in a news release from the European Society of Cardiology.