Desfechos intra-hospitalares e preditores de mortalidade no infarto agudo do miocárdio com choque cardiogênico tratados por angioplastia primária: dados do registro InCor

BACKGROUND: Cardiogenic shock is the leading cause of death in patients with ST-segment elevation myocardial infarction (STEMI). The present study evaluated patients with STEMI and cardiogenic shock undergoing primary percutaneous coronary intervention in order to establish their profile and predictors of in-hospital mortality. METHODS: Single center registry, including 100 patients evaluated from 2001 to 2009 for clinical, angiographic and procedure-related characteristics and in-hospital outcomes. Independent predictors of in-hospital mortality were determined by multivariate analysis. RESULTS: We observed a high prevalence of risk factors, angiographic success rate was 92%, despite the lesion complexity (83.1% were type B2/C). The left anterior descending artery was the most affected artery (45%) and 73% of the patients had multivessel disease. Mortality rate was 45%, and its independent predictors were multivessel disease [odds ratio (OR) 2.62, 95% confidence interval (95% CI) 1.16-5.90) and TIMI flow < 3 at the end of the procedure (OR 2.11, 95% CI 1.48-3.02). CONCLUSIONS: Patients with STEMI complicated by cardiogenic shock presented high-risk clinical and angiographic characteristics and despite the high angiographic success rate of the procedure, mortality rates were high. The presence of multivessel disease and TIMI flow < 3 at the end of the procedure were independent predictors of mortality.