Microvascular anastomosis using 12-0 sutures was performed on 44 mice saphenous arteries with external diameters of approximately 0.20 mm. A patency rate of 77 percent at 1 to 2 weeks after anastomosis was achieved. Good visualization, fine sutures and instruments, and meticulous technique were all very important.
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Huang et al. (1982) studied this question.