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Burgess SN, French JK, Nguyen TL, Leung M, Richards DAB, Thomas L, Mussap C, Lo S, Juergens CP. The impact of incomplete revascularization on early and late outcomes in ST-elevation myocardial infarction. Am Heart J 2018; 205:31-41. [PMID: 30153623 DOI: 10.1016/j.ahj.2018.07.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 07/24/2018] [Indexed: 12/30/2022]
Abstract
BACKGROUND In ST-elevation myocardial infarction (STEMI) in patients with multivessel disease, there is a lack of consensus regarding the importance of complete revascularization and the timing of treatment of nonculprit stenoses. Our objective was to investigate the impact of incomplete revascularization in STEMI patients using the residual Synergy Between PCI with TAXUS and Cardiac Surgery score (rSS) to define completeness of revascularization. METHODS This study examined associations between incomplete revascularization, determined by the rSS, and the combined outcome of cardiac death and myocardial infarction (MI). Patients were divided into groups: rSS = 0 (complete revascularization), rSS = 1-8 (incomplete revascularization with a low burden of residual disease), or rSS >8 (incomplete revascularization with a high burden of residual disease). RESULTS The rSS score was calculated in 589 consecutive patients; 25% had an rSS of 0, 42% rSS 1-8, and 33% rSS >8. At median follow-up of 3.5 years, cardiac death and MI occurred in 5% of rSS = 0 patients, 15% rSS = 1-8, and 26% with rSS >8 (P < .001). The rSS was powerful independent predictor of cardiac death and MI (hazard ratio 5.05, CI 2.89-12.00, rSS >8 vs rSS 0, P < .001 and hazard ratio 2.96, CI 1.31-6.69, rSS = 1-8 vs rSS = 0, P = .009), respectively, and an independent predictor of mortality, MI, unplanned revascularization, and major adverse cardiovascular events. CONCLUSIONS In patients with STEMI, the rSS independently predicts cardiac death and MI. Patients with an rSS >8 had substantially higher rates of cardiac death or MI. The rSS can be used to define incomplete revascularization in STEMI and predict adverse outcomes.
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Affiliation(s)
- Sonya N Burgess
- Department of Cardiology, Liverpool Hospital, Sydney, New South Wales, Australia; The University of New South Wales, Sydney, New South Wales, Australia; Department of Cardiology, Nepean Hospital, Sydney, New South Wales, Australia
| | - John K French
- Department of Cardiology, Liverpool Hospital, Sydney, New South Wales, Australia; The University of New South Wales, Sydney, New South Wales, Australia.
| | - Tuan L Nguyen
- Department of Cardiology, Liverpool Hospital, Sydney, New South Wales, Australia; The University of New South Wales, Sydney, New South Wales, Australia
| | - Melissa Leung
- Department of Cardiology, Liverpool Hospital, Sydney, New South Wales, Australia; The University of New South Wales, Sydney, New South Wales, Australia
| | - David A B Richards
- Department of Cardiology, Liverpool Hospital, Sydney, New South Wales, Australia; The University of New South Wales, Sydney, New South Wales, Australia
| | - Liza Thomas
- Department of Cardiology, Liverpool Hospital, Sydney, New South Wales, Australia; The University of New South Wales, Sydney, New South Wales, Australia; Department of Cardiology, Westmead Hospital, Sydney, New South Wales, Australia
| | - Christian Mussap
- Department of Cardiology, Liverpool Hospital, Sydney, New South Wales, Australia; The University of New South Wales, Sydney, New South Wales, Australia
| | - Sidney Lo
- Department of Cardiology, Liverpool Hospital, Sydney, New South Wales, Australia; The University of New South Wales, Sydney, New South Wales, Australia
| | - Craig P Juergens
- Department of Cardiology, Liverpool Hospital, Sydney, New South Wales, Australia; The University of New South Wales, Sydney, New South Wales, Australia
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