In men with non-obstructive azoospermia, testicle biopsy can provide isolated sperm which can be used for fertilization of an oocyte. The male seminal plasma was examined for adequate biochemical parameters and then tested as potential diagnostic parameters for prediction of sperm presence in non-obstructive azoospermia. Sperm was obtained by preparation of the testicular tissue. Biochemical pa...

BACKGROUND To evaluate predictive factors of successful microdissection-testicular sperm extraction (MD-TESE) in patients with presumed Sertoli cell-only syndrome (SCOS). MATERIALS AND METHODS In this retrospective analysis, 874 men with non-obstructive azoospermia (NOA), among whom 148 individuals with diagnosis of SCOS in prior biopsy, underwent MD-TESE at Department of Andrology, Royan Ins...

objective: in sever oligospermia; one of the paths used for surgical sperm retrieval (ssr) is to extract sperm via a testicular biopsy. the aim of our study is to determine the reliable time interval between testicular biopsy and intracytoplasmic sperm injection (icsi) procedure in order to obtain optimumsperm parameters (count, motility and normal morphology). materials and methods: this cohor...

introduction: the incidence of sperm and oocyte premature chromosome condensation (pcc) in the failed fertilized oocytes that were taken after routine in viro fertilization (ivf) and intracytoplasmic sperm injection (icsi) programs were investigated. materials and methods: in this study, 364 air-dried preparations of failed fertilized oocytes after either ivf or ocsi procedures were analyzed. t...

In the article published in the Asian Journal of Andrology, Esteves et al.1 report on the results of a reasonably large (365) retrospective series of patients with nonobstructive azoospermia (NOA) who had sperm collected by microscopically assisted microdissection (microTESE) for intracytoplasmic sperm injection (ICSI). The results from NOA patients are compared with previously published data f...

OBJECTIVE To investigate the effectiveness of intracytoplasmic sperm injection (ICSI) using testicular sperm as a strategy to overcome infertility in men with high sperm DNA fragmentation (SDF). DESIGN Prospective, observational, cohort study. SETTING Private IVF centers. PATIENT(S) A total of 147 couples undergoing IVF-ICSI and day 3 fresh ETs whose male partner has oligozoospermia and h...

Background: Nonobstructive azoospermia (NOA) is due to different forms of spermatogenic failure and affects the majority of azoospermic patients. In many NOA cases spermatogenesis was shown to be focal with a “patchy distribution”. Different surgical sperm retrieval techniques have been developed to obtain gametes from the testicles of azoospermic men seeking fertility treatment. Nowadays, test...