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. 2004 Jun;21(2):83–93. doi: 10.1055/s-2004-833681

Figure 7.

Figure 7

(A) Suture is placed around the vein (shaded). (B) If suture is simply tied around vein, flow in a reduced diameter vein can persist. (C) Suture is tied around an external segment of large dilator, which helps to oppose the walls of the vein and to better occlude flow.