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Table 3 Comparison of long-term patency of bridging vessels between the MVF group and the OVF group within four years of follow-up sessions

From: The clinical application of microincision vein harvesting of the great saphenous vein in coronary artery bypass grafting

Saphenous vein sampling method

Patency of great saphenous vein

χ2

P

Pipe diameter > 50%

Pipe diameter < 50%

MVF

75

5

0.754

0.385

OVF

72

8