Author + information
- Received March 28, 2014
- Accepted April 10, 2014
- Published online September 1, 2014.
- Louis P. Kohl, MD∗∗ (, )
- Ross F. Garberich, MS∗,
- Hannah Yang, BS∗,
- Scott W. Sharkey, MD∗,
- M. Nicholas Burke, MD∗,
- Daniel L. Lips, MD∗,
- David A. Hildebrandt, RN∗,
- David M. Larson, MD∗ and
- Timothy D. Henry, MD∗,†
- ∗Minneapolis Heart Institute Foundation, Abbott Northwestern Hospital, Minneapolis, Minnesota
- †Division of Cardiology, Cedars-Sinai Heart Institute, Los Angeles, California
- ↵∗Reprint requests and correspondence:
Dr. Louis P. Kohl c/o Jennifer Krech, Minneapolis Heart Institute Foundation, 920 East 28th Street, Suite 100, Minneapolis, Minnesota 55407.
Objectives This study sought to determine the contemporary clinical characteristics and outcomes of patients with ST-segment elevation myocardial infarction (STEMI) and previous coronary artery bypass graft (CABG), including those with a saphenous vein graft culprit lesion.
Background The outcome of STEMI patients with previous CABG is reported to be inferior to those without previous CABG, but limited data is available from the primary percutaneous coronary intervention era.
Methods Data was extracted from a large, regional STEMI system’s prospective database, which contained 3,542 unique STEMI episodes from March 4, 2003 through April 22, 2012.
Results Previous CABG was present in 249 patients (7%). Despite higher comorbidity, patients with versus those without previous CABG had similar in-hospital (4.8% vs. 5.2%; p = 0.82) and 1-year (10.8% vs. 9.1%; p = 0.36) mortality, but 5-year (24.9% vs. 14.2%; p < 0.001) mortality was higher. Patients with previous CABG have similar door-to-balloon times. The culprit vessel was the saphenous vein graft in 84 patients (34%), a native vessel in 104 (42%), with no clear culprit in 59 (24%). The left internal mammary artery graft was not a culprit in any patient. Mortality at 30 days (8.3% vs. 3.9% vs. 1.7%, p = 0.19) and 1 year (14.3% vs. 9.0% vs. 6.8%; p = 0.35) was higher (but not statistically) with a saphenous vein graft culprit and was equivalent at 5 years (25.0% vs. 26.0% vs. 20.3%; p = 0.71).
Conclusions Patients with previous CABG treated in a regional STEMI system have similar outcomes as patients without previous CABG, although 5-year mortality is higher. The most common culprit location was a native vessel (42%). Outcomes have improved significantly compared with historical reports.
- coronary artery bypass graft
- percutaneous coronary intervention
- regional care systems
- ST-segment elevation myocardial infarction
Dr. Burke has served as a consultant for Boston Scientific. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose.
- Received March 28, 2014.
- Accepted April 10, 2014.
- American College of Cardiology Foundation