Factors determining the sperm retrieval rate in fresh versus salvage micro-TESE: a comparative cohort study.

Purpose: We studied prospectively the role of FSH, testis volume, age, duration of infertility, hormonal therapy, varicocelectomy and testicular histopathology in determining the sperm retrieval rate (SRR) in fresh versus salvage micro-TESE.

Methods: Our study analysed retrospectively the prospectively maintained database of 330 NOA patients who underwent micro-TESE either 1st or 2nd or 3rd timers from January 2017 to August 2018 from the Andrology Clinic of a specialized IVF centre. They were divided equally into 3 groups, group (1) were 1st timers, group (2) were 2nd timers and group (3) were 3rd timers, respectively.

Can spermatozoa be retrieved in non-obstructive azoospermic patients with high FSH level?: A retrospective cohort study.

We aimed in this retrospective study to evaluate non-surgical preoperative parameters and testicular histopathology in determining the sperm retrieval rate (SRR) in non-obstructive azoospermic (NOA) patients. We evaluated the data of 1,395 consecutive patients who underwent 1st time micro-dissection testicular sperm extraction (micro-TESE) that was done by fifteen different senior andrologists and a consequent undefined number of biologists assisting them in the operative rooms from January 2010 to May 2013 in a specialised IVF centre. Our study did not demonstrate any statistical significance between the mean age, the mean duration of infertility and finally, the mean of FSH levels of the patients with positive and negative micro-TESE outcomes (p-value 0.