23 An observed trend toward a higher mean number of coronary anastomoses and 1-year rates of graft patency performed in the ONCAB group than in the OPCAB group was reported. 22 However a randomized trial concluded that OPCAB and ONCAB were associated with similar early and late graft patency, incidence of recurrent or residual myocardial ischemia, need for re-intervention, and long-term survival. 24 Although we observed a slightly fewer anastomoses in the off-pump group as well, it did not translate into a worse survival.
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Off-pump versus on-pump coronary artery bypass surgery in patients with triple-vessel disease and enlarged ventricles.
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