Impact of infarct location and size on clinical outcome after ST-elevation myocardial infarction treated by primary percutaneous coronary intervention.

Background: For patients suffering from acute ST-elevation myocardial infarction (STEMI), it is controversial whether infarct location predicts worse clinical outcome independently of infarct size. We therefore aimed to investigate the prognostic relevance of infarct location in relation to infarct size in STEMI patients treated with contemporary primary percutaneous coronary intervention (PCI).

Methods: Cardiac magnetic resonance was performed in 355 patients with acute STEMI 3 (interquartile range [IQR]: 2-4) days after primary PCI.