Abstract 15702: Association of Onset Season With Characteristics and Long-Term Outcomes in Acute Myocardial Patients: A Sub-Analysis of J-minuet Study

2017 
Background: It is known that incidence of acute myocardial infarction (AMI) tend to be higher in cold season. However, the association of onset season with characteristics and long-term outcomes of AMI patients is unclear. Methods and Results: This was a prospective and multicenter Japanese registry consisting of 3,283 AMI patients with available data of admission date, who were hospitalized within 48 hours of symptom onset during July 2012 to March 2014. In this registry, we investigated the seasonal effect on clinical outcomes in AMI patients. We divided the patients into three groups according to admission date: cold season group (December to March), hot season group (June to September), and moderate season group (April, May, October, and November). There were 1356 patients (41.3%) admitted in the cold season, 901 patients (27.4%) admitted in the hot season, and 1026 (31.3%) patients admitted in the moderate season. Baseline characteristics of each seasonal group were comparable except for Killip class...
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