Abstract
BackgroundRegistry-driven data have shown a significant decrease in door-to-balloon (DTB) times in patients with ST-elevation myocardial infarction (STEMI) receiving percutaneous coronary intervention (PCI). We sought to determine the trends in reperfusion times (symptom-onset to door (SOTD) and DTB times) in patients presenting with STEMI across New York State. MethodsWe retrospectively examined 35,613 STEMI patients receiving PCI from 2004 to 2012 and compared median SOTD and DTB times across years. Patients with SOTD time >12h and DTB time >3h were excluded. ResultsThere was a statistically significant trend towards shorter DTB times (median DTB time of 83min (IQR 53, 116) in 2004 to a median DTB time of 59min (IQR 40, 78) in 2012, P<0.01 for trend) and SOTD times (median SOTD time of 127min (IQR 64, 241) in 2004 to a median SOTD time of 116min (IQR 60, 205) in 2012, P<0.01 for trend). In subgroup analysis, demographics and the presence of co-morbid conditions did not influence the trend in reperfusion times. However, women had longer reperfusion times than men in 2012. After adjusting for confounding variables, DTB was a significant predictor of in-hospital mortality (HR=1.04 (per 10minutes), P<0.01). ConclusionsThere was a significant decrease in reperfusion times from 2004 to 2012 in STEMI patients across New York State. This trend was significant regardless of the presence of co-morbid conditions, although a significant gap in reperfusion times persists between men and women.
Published Version
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