Silber S J
Fertil Steril. 1977 Jan;28(1):72-7.
Early results with a new, two-layer microscopic technique for anastomosis of the vas deferens, using an operating microscope and ultrafine suture, reveal that patency of the vas deferens can be achieved in virtually every case. Normal sperm counts can be achieved in up to 95% of patients. Failure with conventional techniques is usually due to continuing partial obstruction. A poor sperm count after this technique is most likely due to an inherent inability of the patient to produce normal sperm, a likely sequela of chronic obstruction. Thus, while success is also good 10 years after vasectomy, it is not as predictable. Previous failure with a conventional operation does not limit success with a reoperation using the microscopic two-layer tehcnique. Operations on 200 patients since this original study are confirming these early results.
一项使用手术显微镜和超细缝线的新型双层显微技术进行输精管吻合术的早期结果显示，几乎在每种情况下都能实现输精管通畅。高达95%的患者可实现正常精子计数。传统技术失败通常是由于持续存在部分梗阻。采用该技术后精子计数不佳很可能是由于患者自身无法产生正常精子，这可能是慢性梗阻的后遗症。因此，虽然输精管结扎术后10年成功率也较高，但不如采用该技术那样可预测。既往传统手术失败并不影响使用显微双层技术再次手术的成功率。自这项最初研究以来，对200名患者进行的手术正在证实这些早期结果。
