输精管吻合术后的低生育率是由输精管结扎术中的神经切除引起的吗？

Is the low fertility rate after vasovasostomy caused by nerve resection during vasectomy?

作者信息

Pabst R, Martin O, Lippert H

出版信息

Fertil Steril. 1979 Mar;31(3):316-20. doi: 10.1016/s0015-0282(16)43881-1.

Abstract

Cross-sections of human spermatic cords and vasectomy specimens were prepared and the number and cross-sectional area of nerves were determined. On average, about one-half of all nerves in the near neighborhood of the vas deferens were resected during vasectomy. The total cross-sectional area of the nerves along the vasectomy specimens amounted to about one-half of the total area in the spermatic cord samples. The data support the hypothesis that removing nerves to the vas deferens during vasectomy could result in poor functional results after vasovasostomy, i.e., that powerful contraction of the proximal vas deferens and epididymis could be lacking.

摘要

制备了人类精索和输精管结扎标本的横截面，并测定了神经的数量和横截面积。平均而言，输精管结扎术中切除了输精管附近所有神经的约一半。输精管结扎标本中神经的总横截面积约为精索样本总面积的一半。这些数据支持了这样一种假设，即输精管结扎术中切除输精管的神经可能导致输精管吻合术后功能不佳，也就是说，近端输精管和附睾可能缺乏有力的收缩。