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A Journal on Heart and Vascular Diseases

Official Journal of the Italian Society of Angiology and Vascular Pathology
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Minerva Cardioangiologica 2010 June;58(3):291-9

language: English

Short and long-term outcomes of percutaneous revascularization in patients with prior coronary artery bypass graft

D’Ascenzo F., Gonella A., Longo G., Pullara A., Bollati M., Vagnarelli, M., Biondi Zoccai G., Moretti C., Sciuto F., Omedè P., Trevi G. P., Sheiban I.

Interventional Cardiology, Division of Cardiology, University of Turin, Turin, Italy


AIM: Patients with prior coronary artery bypass grafting (CABG) represent a sizable portion of those undergoing percutaneous coronary intervention (PCI): in many instances, it is unclear whether performing PCI on the bypass graft or in the native coronary vessels can offer the best risk-benefit balance.
METHODS: We included patients with prior CABG undergoing PCI at our center between July 2002 and June 2004 and we distinguished them in three groups. Those in whom PCI was performed on stenotic saphenous vein graft (SVG group), those in whom PCI was performed on native vessels despite the presence of potentially treatable SVG disease (optional native group), and those in whom PCI had to be performed mandatorily in the native vessels because of chronic SVG occlusions or disease in non-bypassed segments (mandatory native group). The primary end-point was long-term rate of major adverse clinical events (MACE, i.e. death, myocardial infarction, or target vessel revascularization).
RESULTS: We identified 109 patients: 28 were in the SVG group, 25 in the optional native group, and 56 in the mandatory native group. Early major adverse cardiac events (MACE) occurred with similar frequency in the three groups (respectively, 9.1%, 0% and 5.7%, P=0.35). After more than three years of follow-up, MACE occurred in 39.3% vs. 28 and 39.4% (P=0.59), death occurred in 27.2 vs. 24.0% vs. 13.5% (P=0.30), and TVR in 27.3% vs. 8.0% vs. 28.8% (P=0.14).
CONCLUSION: In selected patients, PCI of native coronary vessels despite the presence of apparently treatable SVG lesions can be envisioned.

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