Universal reperfusion therapy can be implemented: lessons from 20 years of management of patients admitted within 6 hours of symptom onset with ST-segment elevation acute myocardial infarction.

AIM To describe longitudinal trends in patients' characteristics, management and hospital outcomes over 20 years of therapy for ST-segment elevation myocardial infarction (STEMI). METHODS From 1988 to 2007, 2100 consecutive patients with STEMI were admitted within 6 hours of symptom onset to a centre with a systematic reperfusion policy. The population was divided into three periods 1988-1996, 1996-2001 and 2001-2007. RESULTS The baseline risk of mortality increased over time (p=0.02). Use of primary PCI increased and the proportion not receiving reperfusion therapy decreased (from 11.4 to 4.2%, p=0.0001). Adjunctive use of stents and glycoprotein IIb/IIIa antagonists increased. The proportion of patients achieving acute TIMI-3 flow in the infarct artery increased (81 to 92%, p=0.001), while time from symptom onset to reperfusion decreased (240 to 205 min, p<0.0001). This was associated with a decrease in age- and sex-adjusted in-hospital mortality from 8.9 to 7.7% and eventually 5.4% (p<0.01). However, the mortality of patients with cardiogenic shock was unaffected (76, 62 and 61%, respectively, p=0.18). CONCLUSION Reperfusion therapy can be implemented in up to 96% of STEMI patients admitted within 6 hours of symptom onset and this is associated with improvements in outcomes. Further improvements are needed in the management of patients with cardiogenic shock.