Chinese Journal of Tissue Engineering Research ›› 2011, Vol. 15 ›› Issue (44): 8313-8316.doi: 10.3969/j.issn.1673-8225.2011.44.036

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Analysis on graft patency after off-pump and conventional coronary arterial bypass grafting by computed tomography angiography

Liu Zhi-yong1, Zhang Guang-ling2, Wu Peng-yu1, Li Zhan-qing1, Yang Dong-sheng1, Jiang Shou-fang2, Zhang Wei-hong1, Huo Xiao-ju1, Gao Chang-qing3   

  1. 1Department of Cardiothoracic Surgery, Affiliated Hospital of Hebei United University, Tangshan  063000, Hebei Province, China
    2Hebei United University. Tangshan 063000, Hebei Province, China
    3Department of Cardiovascular Surgery, General Hospital of Chinese PLA, Beijing  100853, China
  • Received:2011-06-28 Revised:2011-08-04 Online:2011-10-29 Published:2011-10-29
  • Contact: Gao Chang-qing, Professor, Doctoral supervisor, Department of Cardiovascular Surgery, General Hospital of Chinese PLA, Beijing 100853, China macromicro@ 126.com
  • About author:Liu Zhi-yong☆, Studying for doctorate, Associate chief physician, Associate professor, Department of Cardiothoracic Surgery, Affiliated Hospital of Hebei United University, Tangshan 063000, Hebei Province, China
  • Supported by:

    Military Excellent Young and Middle-aged Persons Foundation, No.04J017*

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Abstract:

BACKGROUND: Off-pump coronary artery bypass graft surgery (OPCAB) has been performed for many years and its use is increasing frequently, but it remains an open question whether OPCAB provides similar patency to conventional coronary artery bypass graft (CCABG) surgery with cardiopulmonary bypass.
OBJECTIVE: To assess the graft patency in patients that had coronary arterial bypass grafting (CABG) performed on-pump and off-pump.
METHODS: A total of 237 patients with CABG performed by a single surgeon were retrospectively studied, in which 100 patients underwent CCABG and 137 patients underwent OPCAB; the two groups were well matched according to relative factors and no significant differences were found in both groups. Postoperatively, systematic assessment on the graft patency of all patients was conducted with 64-slice multidetector spiral computed tomography angiography at 1 month, 1 year, 2 years, 3 years and 4 years, respectively, to provide 641 grafts for analysis.
RESULTS AND CONCLUSION: Patency of left internal mammary artery was higher than that of saphenous vein in both groups; no significant difference was observed in left internal mammary artery patency and saphenous vein patency in both groups. Results of 64-slice multidetector spiral computed tomography angiography indicate that OPCAB provides similar patency to CCABG surgery with CPB.

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