Cardiogenic shock after ST elevation myocardial infarction and IABP-SHOCK II risk score validation in a cohort treated with pharmacoinvasive strategy.

Objective: To validate the Intra-aortic Balloon Pump in Cardiogenic Shock II (IABP-SHOCK II) score in patients with cardiogenic shock after ST elevation myocardial infarction (STEMI) treated with pharmacoinvasive strategy (PhIS) and to analyse the influence of ischaemia time on different risk strata.

Methods: We analysed 2143 patients with STEMI who underwent reperfusion with tenecteplase in primary health services between May 2010 and April 2017 and were transferred to a tertiary hospital for cardiac catheterisation and continuity of care. Those who evolved to cardiogenic shock were scored as low (0-2), moderate (3-4) or high (5-9) risk of death in 30 days and pairwise-log-rank test was used to compare strata.