نتایج جستجو برای: sperm retrieval rate

تعداد نتایج: 1071065  

Journal: :International braz j urol : official journal of the Brazilian Society of Urology 2015
Marcelo Vieira

Decision on which is the best treatment for a problem that has more than one way to be dealt with goes much further from exclusively looking to the final results. Decision must include which are the final results you are looking for, how many variables are present in both options, money expenditure to reach the result and finally, how much resources are available for it. The beginning of 90’s b...

2017
Mojdeh Sabour Arezoo Khoradmehr Seyyed Mehdi Kalantar Amir Hossein Danafar Marjan Omidi Iman Halvaei Ali Nabi Saeed Ghasemi-Esmailabad Ali Reza Talebi

BACKGROUND Methamphetamine (MA) was shown to have harmful effects on male reproductive system. OBJECTIVE To investigate probable effects of daily administration of MA on sperm parameters and chromatin/DNA integrity in mouse. MATERIAL AND METHODS Thirty-five NMRI male mice were divided into five groups including low, medium, and high dosage groups which were injected intraperitoneally with 4...

2014
Kazem Nouri Brigitte Litschauer Michael Sator Denise Tiringer Johannes Ott Katherina Walch Lukas A Hefler Clemens B Tempfer

The aim of the present study was to assess if semen quality declines during in vitro fertilization (IVF) and whether or not this phenomenon is triggered by chronic male stress. In order to test this hypothesis, we first investigated a retrospective cohort of 155 male IVF patients (testing cohort). Subsequently, we started a prospective cohort study in men undergoing their first IVF and assessed...

Journal: :Human reproduction 1998
D M Nudell J Conaghan R A Pedersen C R Givens E D Schriock P J Turek

Epididymal sperm aspiration and in-vitro fertilization (IVF) with intracytoplasmic sperm injection is an established treatment for obstructive azoospermia. Sperm aspiration is performed with either an incision or percutaneously. To control costs, minimize morbidity and retain the advantages of both approaches, we developed a mini-incision technique for epididymal aspiration and here report sper...

2018
Geng An Zihao Zou Ryan Flannigan Jianqiao Liu Hongzi Du Xin Fu Feixiang Guo Wen Zhang

BACKGROUND As a safety and efficacy protocol, oocyte vitrification has been widely used in IVF treatment. The aim of this study was to evaluate the outcome of ICSI-ET utilizing vitrified oocytes with sperm obtained from non-obstructive azoospermia (NOA) patients via micro-TESE. MATERIAL AND METHODS A total of 150 NOA patients underwent micro-TESE. Ten patients were unable to ejaculate and refus...

Colpi EM Colpi GM Vaccalluzzo L

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...

2016
Emad Ibrahim Nancy L Brackett Charles M Lynne

Couples with a spinal cord injured male partner require assisted ejaculation techniques to collect semen that can then be further used in various assisted reproductive technology methods to achieve a pregnancy. The majority of men sustaining a spinal cord injury regardless of the cause or the level of injury cannot ejaculate during sexual intercourse. Only a small minority can ejaculate by mast...

Journal: :Human reproduction 2006
Shai Shefi Gil Raviv Michael L Eisenberg Ruth Weissenberg Liza Jalalian Jacob Levron Gili Band Paul J Turek Igael Madgar

BACKGROUND Current recommendations regarding posthumous sperm retrieval (PSR) are based on a small number of cases. Our purpose was to determine the time interval from death to a successful procedure. METHODS Seventeen consecutive PSR procedures in 14 deceased and 3 neurologically brain-dead patients at two male infertility centres [Sheba Medical Center (SMC), Tel-Hashomer, Israel and Univers...

2014
Ju Tae Seo

Approximately 15% of couples cannot conceive a child after 1 year of regular, unprotected intercourse. Male factor infertility is contributory in another 30% to 40%. Most causes of male infertility are treatable and the goal of many treatments is to restore the ability to conceive naturally. The dramatic recent improvements in the management of male infertility are largely contributable to impr...

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