Abstract
Introduction: There is limited data regarding the frequency, predictors and impact of repeat, unplanned coronary angiography following successful reperfusion with primary PCI in STEMI pts. Methods: We used the prospective, multicenter Midwest STEMI Consortium database, which was created by unique consolidation of 4 large STEMI systems of care: Iowa Heart Center, Minneapolis Heart Institute Foundation, Prairie Cardiovascular, and The Christ Hospital. Each center has similar, well-established standardized STEMI protocols with collaboration over 100 non-PCI-capable hospitals in Midwest. We included all consecutive STEMI pts who underwent repeat, unplanned coronary angiography within 48-hour of successful primary PCI. We excluded pts who underwent a planned or staged coronary angiography. We compared pts with repeat, unplanned coronary angiography to a propensity-score matched (1:2) pts without repeat coronary angiography within 48-hour. Results: Among 6507 STEMI pts treated with primary PCI from 03/2003 to 01/2020, only 136 (2.1%) underwent repeat, unplanned coronary angiography. These pts had higher rates of LAD culprit, history of prior MI, poor pre-PCI TIMI flow (0 or 1) and lower EF. Nearly half of the repeat, unplanned coronary angiographies revealed patent stent (63/136). There were only 32 (24%) in-stent thrombosis and 30 (22%) new occlusions. Compare to the control group, pts with repeat, unplanned coronary angiography were more likely to have major bleeding and longer LOS (p=<0.001) but similar MI, stroke, CV- or all-cause mortality up to 1-year follow-up. Of note, in-hospital MI, which was significantly higher reported in pts with repeat, unplanned coronary angiography, occurred basically prior to repeat coronary angiography (Table). Conclusions: Repeat, unplanned coronary angiography is relatively uncommon after contemporary primary PCI for STEMI pts and is more common with larger, anterior MIs.
Published Version
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