Results 101 to 110 of about 37,859 (284)

Stable variable selection for right censored data: comparison of methods [PDF]

open access: yes, 2011
The instability in the selection of models is a major concern with data sets containing a large number of covariates. This paper deals with variable selection methodology in the case of high-dimensional problems where the response variable can be right ...
Besse, Philippe   +2 more
core   +3 more sources

Impact of varicocoelectomy on male semen parameters: A long‐term analysis of sperm quality and outcomes

open access: yesAndrology, EarlyView.
Abstract Background Varicocoeles are common in 40% of men presenting with infertility. Semen parameters including sperm motility, low sperm count and sperm morphology are altered by the presence of varicocoeles. Though varicocoelectomy has been associated with improvements in these parameters, studies on long‐term outcomes are limited.
Max D. Sandler   +6 more
wiley   +1 more source

Re: Impact of Fresh Versus Cryopreserved Testicular Sperm Upon Intracytoplasmic Sperm Injection Pregnancy Outcomes in Men with Azoospermia Due to Spermatogenetic Dysfunction: A Meta-Analysis

open access: yesJournal of Urological Surgery, 2014
Azoospermia affects up to 15% of men seeking evaluation for infertility. Sperm retrieval from testicular tissue and using for intracytoplasmic injection to the oocytes is the only treatment option for men with nonobstructive azoospermia (NOA).
Samuel Ohlander   +4 more
doaj  

In vitro maturation of germinal vesicle oocytes in stimulated intracytoplasmic sperm injection cycles [PDF]

open access: yes, 2011
Objective: This study evaluated in vitro maturation (IVM) of oocytes in the germinal vesicle (GV) stage in stimulated intracytoplasmic sperm injection (ICSI) cycles.
Esmaelzadeh, S.   +3 more
core  

Development of a nomogram for sperm retrieval at microTESE for idiopathic non‐obstructive azoospermia in a multi‐center cohort study

open access: yesAndrology, EarlyView.
Abstract Background Non‐obstructive azoospermia (NOA) affects approximately 10% of infertile men and represents a major challenge in assisted reproductive technology (ART). A model that includes histological variants could be helpful in predicting sperm retrieval rate (SRR) after microdissection testicular sperm extraction (mTESE) in patients affected ...
Giorgio Ivan Russo   +10 more
wiley   +1 more source

Extended indications for sperm retrieval: summary of current literature [version 1; peer review: 2 approved]

open access: yesF1000Research, 2019
Sperm retrieval combined with intracytoplasmic sperm injection (ICSI) is the treatment of choice for couples with untreatable azoospermia-related infertility. However, an increasing body of evidence has been mounting, suggesting that ICSI with testicular
Sandro C. Esteves, Matheus Roque
doaj   +1 more source

The development of intracytoplasmic sperm injection [PDF]

open access: yesHuman Reproduction, 1996
Devroey, Paul   +11 more
openaire   +4 more sources

Linear association between endometrial thickness and live birth in single blastocyst transfers: A dual‐center retrospective cohort study

open access: yesActa Obstetricia et Gynecologica Scandinavica, EarlyView.
The study investigates the linear relationship between endometrial thickness (EMT) and live birth rates (LBR) in single vitrified‐warmed blastocyst transfer (SVBT) cycles, and evaluates the independent effect of EMT on LBR. A retrospective analysis of 3375 SVBT cycles revealed that each 1 mm increase in EMT was associated with a 7% higher likelihood of
Lidan Liu   +5 more
wiley   +1 more source

Successful pregnancies and a live birth after intracytoplasmic sperm injection in globozoospermia

open access: yesJournal of Human Reproductive Sciences, 2009
Globozoospermia is a severe form of teratozoospermia characterized by round-headed acrosomeless spermatozoa. Here we present two successful pregnancies and a live birth after intracytoplasmic sperm injection.
Manish R Banker   +4 more
doaj   +1 more source

Sperm selection before intracytoplasmic sperm injection

open access: yesCurrent Trends in Clinical Embriology, 2015
In assisted reproduction techniques (ART), the success of embryo development depends mostly on the quality of gametes, and pregnancy outcome is strictly related to both the oocyte and the fertilizing sperm quality. Therefore, during ART, it is mandatory to select a mature and viable sperm with high DNA integrity. Routine sperm preparation and selection
TALEVI, RICCARDO, GUALTIERI, ROBERTO
openaire   +2 more sources

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