Randomized controlled trial comparing primary and staged basilic vein transposition.

Repeat analysis excluding initial failures showed a trend for better 1-year primary patency rates of primary procedures (100 vs 57%, for staged procedures, P = 0.08); however, 1-year assisted-primary and secondary patency rates of primary and staged procedures were equivalent (100 vs 71%, P = 0.27, and 100 vs 86%, P = 0.45, respectively).

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Baseline characteristics (demographics, pertinent history and co-morbidities) of the two study groups are demonstrated in Table 1 and were comparable; however, a marginally significant difference for antithrombotic treatment being used more frequently in two-staged procedures was noted.

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