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  • Title: Application of a new suture material called the U-Clip for composite and sequential grafting with off-pump coronary bypass surgery.
    Author: Morishige N, Hayashida Y, Ito N, Teshima H, Takeuchi K, Iwahashi H, Tashiro T.
    Journal: Heart Surg Forum; 2006; 9(6):E861-5. PubMed ID: 17060041.
    Abstract:
    BACKGROUND: The U-Clip was found to facilitate the interrupted anastomosis of coronary artery bypass grafts (CABG). This device may be beneficial especially in multivessel off-pump CABG (OPCAB) using composite grafts or sequential anastomosis. The aim of this study was to evaluate our early clinical experience using the U-Clip in OPCAB cases. METHODS: This retrospective study included 118 patients who underwent off-pump CABG between 2001 and 2004. The mean age of the 91 men and 27 women was 69.5 +/- 8.0 years (range, 47-85). The U-Clip was adopted for sewing 73 proximal ends of the free graft to the side or end of the inflow conduit to prepare the composite graft. The U-Clip was also applied to 112 distal anastomoses, especially to the side-to-side anastomosis of the sequential graft. RESULTS: Hospital mortality rate was 0.8% (1/118). The early patency rate of distal anastomoses using the U-Clip was 95% (96/101). The early patency rate of proximal anastomoses using the U-Clip was 98.4% (62/63). Interim angiography was performed in 12 patients (range, 3.8-42 months; average, 16 months). In these 12 patients, a total of 8 proximal anastomoses of conduits using the U-Clip were all patent without stenosis. The patency rate of a total of 10 distal anastomoses in the 12 patients using the U-Clip was 100%. CONCLUSIONS: The U-Clip-interrupted anastomosis enables a safe, definite, and rapid end-to-end or end-to-side connection of arterial grafts. We therefore consider the U-Clip to be a useful suture material especially for multivessel OPCAB using multiple arterial grafts.
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