Contemporary utilization patterns for targeted temperature management (TTM) among patients with acute myocardial infarction (MI) and out-of-hospital cardiac arrest (OHCA) have not been well characterized in the United States. In this nationwide evaluation of MI patients with OHCA (01/2015-03/2016; 691 hospitals), 34.1% (1792/5260) of OHCA patients received TTM. Patients who were treated with TTM had higher risk clinical features. A wide inter-hospital variation (ranging from 0% to 82%) in TTM use observed despite few differences in case mix.
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