Should cryopreserved epididymal or testicular sperm be recovered from obstructive azoospermic men for ICSI?

摘要

Objective To determine the effect of the anatomical site of sperm recovery on intracytoplasmic sperm injection (ICSI) embryo implantation, pregnancy and live birth rates in couples with isolated obstructive azoospermia as the sole cause of infertility. Design Controlled, single centre, retrospective clinical study. Setting University Hospital, Centre for Reproductive Medicine. Sample One hundred and fifty-one cycles of ICSI were performed, using surgically recovered sperm, between August 1996 and March 2002. Methods The outcome of ICSI, with surgically recovered sperm, was compared between epididymal (Group E) and testicular (Group T) derived sperm. Inclusion was limited to couples undergoing their first treatment cycle, where female age was