Abstract:
BACKGROUND:Patients with non-ST-elevation myocardial infarction (NSTEMI) and three-vessel or left main coronary disease (3VD/LMD) have a high risk of long-term mortality when treated with a medical management strategy (MMS) compared with revascularization. METHODS:We evaluated patterns of use and patient features across United States hospitals designated by MMS for NSTEMI patients with 3VD/LMD included in the ACTION Registry-GWTG from 2007-2012. RESULTS:A total of 42,535 patients without prior bypass surgery were found to have 3VD (≥50% stenosis in all major coronary vessels) or LMD (≥50% lesion) during in-hospital angiography at 423 hospitals with percutaneous and surgical revascularization capabilities. Hospitals (n = 316) with an adequate volume (≥25 NSTEMI patients treated) were stratified into tertiles defined by use of MMS; differences in patient characteristics and outcomes were analyzed. The proportion of NSTEMI patients treated with MMS at all hospitals varied from 16% to 19% each quarter and did not change significantly from 2007 to 2012 (P trend = .11). Among hospitals with adequate volume, the proportion of patients treated with MMS also varied widely (median 17.1%, range: 0.0-44.8%, P < .0001). Patient baseline characteristics, predicted mortality risk, actual in-hospital mortality rates, and discharge treatments were similar across hospital tertiles. CONCLUSIONS:Close to 20% of patients with NSTEMI and 3VD/LMD identified during in-hospital angiography are treated with MMS without revascularization in contemporary practice. Since the use of MMS varies widely across hospitals despite a relatively similar hospital-level case mix, these findings suggest that there is no standard threshold for the use of revascularization in NSTEMI patients with 3VD/LMD.
journal_name
Am Heart Jjournal_title
American heart journalauthors
Harskamp RE,Wang TY,Bhatt DL,Wiviott SD,Amsterdam EA,Li S,Thomas L,de Winter RJ,Roe MTdoi
10.1016/j.ahj.2013.12.004subject
Has Abstractpub_date
2014-03-01 00:00:00pages
355-362.e3issue
3eissn
0002-8703issn
1097-6744pii
S0002-8703(13)00829-6journal_volume
167pub_type
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