INTRODUCTION Rare foci of sperm production may be found in up to 60% of men with nonobstructive azoospermia (NOA). Sperm production, if present, is minimal for sperm appearance in the ejaculate. Given that there are no treatment options to restore fertility, sperm retrieval is the only alternative to find testicular sperm than then can be used for in vitro fertilization (IVF). Among sperm acqui...

conclusions sperm quality extracted by percutaneous pesa and tese procedures increases fertility outcomes compared to naturally ejaculated sperm in men with idiopathic co. more specifically, embryo quality, which is most relevant to fertility outcome, improved when surgically extracted sperm was used for icsi. results there was a significant difference in fertilization rate, embryo quality, imp...

You have accessJournal of UrologyInfertility: Therapy (MP31)1 Sep 2021MP31-03 MICRODISSECTION TESTICULAR SPERM EXTRACTION VS MULTIPLE NEEDLE-PASS PERCUTANEOUS ASPIRATION IN MEN WITH NON-OBSTRUCTIVE AZOOSPERMIA: A RANDOMIZED CLINICAL TRIAL Christian Fuglesang S. Jensen, Dana A. Ohl, Mikkel Fode, Niels Jørgensen, Aleksander Giwercman, Angel Elenkov, Anna Klajnbard, Claus Y. Andersen, Lise Aksglae...

Objective To investigate effects of cryopreservation on changes of the ultrastructure of human testicular sperm and evaluate the efficacy of cryopreserving testicular tissue as a source of sperm for assisted reproduction. Methods Testicular biopsy tissues were obtained from infertile patients (n=12) with obstructive azoospermia and cryopreserved. Testicular sperm motility was observed after in ...

From 1 August 1993 until 30 September 1994, 69 couples suffering from azoospermia underwent testicular sperm extraction and intracytoplasmic sperm injection. In 50 couples with obstructive azoospermia a total of 631 metaphase-II oocytes were injected after testicular sperm extraction yielding a 2-PN fertilization rate of 57%. In female patients <40 years of age an ongoing pregnancy rate per tra...

We are thankful to Dr. Drobnis for her insights and balanced comments with regard to our article titled “comparison of sperm retrieval and reproductive outcome in azoospermic men with testicular failure and obstructive azoospermia treated for infertility”.1 Our main objective was to offer firm information that could be used as a counseling tool by doctors treating patients with azoospermia‐rela...

PURPOSE To assess the impact of sperm retrieval on the gonadal function of rats with impaired spermatogenesis by comparing testicular sperm extraction (TESE) to aspiration (TESA). The efficacy of these procedures to sperm obtainment was also compared. MATERIALS AND METHODS A pilot study showed impaired spermatogenesis, but normal testosterone (T) production after a bilateral orchidopexy appli...