Short, Intermediate and Long term outcomes of CABG vs. PCI with DES in Patients With Multivessel Coronary Artery Disease. Meta-Analysis of Six Randomised Controlled Trials

META-ANALYSIS, September 2014, VOL III ISSUE I, ISSN 2042-4884
10.5083/ejcm.20424884.123 , Cite or Link Using DOI
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Zaher Fanari MD, Sandra A Weiss MD, Wei Zhang, Seema S Sonnad PhD, William S Weintraub MD


Comparing outcomes of percutaneous coronary intervention (PCI) with drug eluting stent (DES) and Coronary Artery Bypass Grafting (CABG) in patients with multivessel Coronary Artery Disease (CAD) using data from randomised controlled trials (RCT).

Background: PCI and CABG are established strategies for coronary revascularization in the setting of ischemic heart disease. Multiple RCT have compared outcomes of the two modalities in patients with multivessel CAD.
Methods: We did a meta-analysis from six RCT in the contemporary era comparing the effectiveness of PCI with DES to at 1 year, 2 years and 5 years respectively.
Results: Compared to CABG, at one year PCI was associated with a significantly higher incidence of TVR (RR= 2.31; 95% CI: [1.80 - 2.96]; P=<0.0001), lower incidence of stroke (RR= 0.35; 95% CI: [0.19 - 0.62]; P=0.0003), and no difference in death (RR= 1.02; 95% CI: [0.77 - 1.36]; P= 0.88) or MI (RR= 1.16; 95% CI: [0.72 - 1.88]; P= 0.53). At 5 years, PCI was associated with a higher incidence of death (RR= 1.3; 95% CI: [1.10 - 1.54]; P= 0.0026) and MI (RR= 2.21; 95% CI: [1.75 - 2.79]; P=<0.0001). While the higher incidence of MI with PCI was noticed in both diabetic and non-diabetics, death was increased mainly in diabetic patients.

Conclusion: In patients with multi-vessel CAD, PCI with DES is associated with no significant difference in death or MI at 1 or 2 years. However at 5 years, PCI is associated with higher incidence of death and MI.