Survival After Varying Revascularization Strategies in Patients With ST-Segment Elevation Myocardial Infarction and Multivessel Coronary Artery Disease: A Pairwise and Network Meta-Analysis

Giuseppe Tarantini, Gianpiero D'Amico, Sorin J Brener, Paola Tellaroli, Marco Basile, Alessandro Schiavo, Marco Mojoli, Chiara Fraccaro, Alfredo Marchese, Giuseppe Musumeci, Gregg W Stone
JACC. Cardiovascular Interventions 2016 September 12, 9 (17): 1765-76

OBJECTIVES: The authors conducted a systematic pairwise and network meta-analysis to assess optimal treatment strategies in patients with ST-segment elevation myocardial infarction (STEMI) and multivessel coronary artery disease (MV-CAD) undergoing primary percutaneous coronary intervention (PCI).

BACKGROUND: Patients with STEMI and MV-CAD have a worse prognosis than those with single-vessel CAD. The optimal revascularization strategy for these patients is uncertain.

METHODS: Studies of revascularization strategies for MV-CAD in STEMI patients undergoing primary PCI published between 2001 and 2015 were identified using an electronic search. Pairwise and network meta-analyses were performed for 3 PCI strategies in prospective and retrospective studies: 1) infarct-related artery (IRA)-only PCI; 2) single procedure MV-PCI; and 3) staged MV-PCI. Information on study design, inclusion and exclusion criteria, and clinical outcomes was extracted. The outcomes of interest were short-term and long-term mortality.

RESULTS: Thirty-two studies (13 prospective and 19 retrospective) with 54,148 patients (IRA-only PCI [n = 42,112], single procedure MV-PCI [n = 8,138], and staged MV-PCI [n = 3,898]) were included in the analysis. Pairwise meta-analyses showed that staged MV-PCI was associated with lower short-term and long-term mortality compared with both IRA-only PCI and single stage MV-PCI, whereas IRA-only PCI was associated with lower mortality compared with single stage MV-PCI. Staged MV-PCI was also associated consistently with improved survival in network analyses.

CONCLUSIONS: The present systematic review and meta-analysis supports the hypothesis that in patients with MV-CAD presenting with STEMI undergoing primary PCI, a staged multivessel revascularization strategy may improve early and late survival.

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