Results 141 to 150 of about 9,757 (189)

Role of varicocelectomy in men with nonobstructive azoospermia

Fertility and Sterility, 2004
To evaluate the benefits of varicocelectomy in men with nonobstructive azoospermia.Retrospective review of effect of prior varicocelectomy on sperm retrieval rates in men with nonobstructive azoospermia. Chart review of men with nonobstructive azoospermia who underwent microsurgical varicocelectomy to determine the effect of the procedure on the need ...
Peter N. Schlegel
exaly   +4 more sources

Clinical management of nonobstructive azoospermia: An update

International Journal of Urology, 2023
AbstractApproximately 1% of the general male population has azoospermia, and nonobstructive azoospermia accounts for the majority of cases. The causes vary widely, including chromosomal and genetic abnormalities, varicocele, drug‐induced causes, and gonadotropin deficiency; however, the cause is often unknown.
Teppei Takeshima   +6 more
openaire   +2 more sources

Nonobstructive azoospermia

Current Opinion in Urology, 2000
Nonobstructive azoospermia (NOA) remains a challenging condition in reproductive medicine to manage. The genetic basis of NOA related to partial deletions of the Y-chromosome has been intensely investigated. Such information is of prognostic value and allows more insightful genetic counseling of couples who opt for assisted reproductive technology ...
P T, Chan, P N, Schlegel
openaire   +2 more sources

Varicocele repair for nonobstructive azoospermia

Current Opinion in Urology, 2012
To evaluate the role of varicocelectomy in the management of patients with varicoceles and nonobstructive azoospermia and to review predictors of successful outcomes.Several small, retrospective, noncontrolled studies have documented return of sperm to the ejaculate in up to 56% of men with nonobstructive azoospermia (NOA) following varicocele repair ...
Akanksha, Mehta, Marc, Goldstein
openaire   +2 more sources

Outcomes of microdissection testicular sperm extraction in men with nonobstructive azoospermia due to maturation arrest

open access: yesFertility and Sterility, 2015
To evaluate sperm retrieval in men with nonobstructive azoospermia and maturation arrest (MA) undergoing microdissection testicular sperm extraction (micro-TESE). Retrospective chart review. Tertiary referral center.
Joshua A Halpern   +2 more
exaly   +2 more sources

Use of subinguinal incision for microsurgical testicular biopsy during varicocelectomy in men with nonobstructive azoospermia

open access: yesFertility and Sterility, 2009
Objective: To describe a subinguinal technique of microsurgical testicular biopsy performed during subinguinal varicocelectomy in men with nonobstructive azoospermia. Design: Prospective clinical study.
Marcello Cocuzza   +2 more
exaly   +2 more sources

The changing landscape of nonobstructive azoospermia

Current Opinion in Urology
Purpose of review This article aims to describe new developments in the field of nonobstructive azoospermia biology, diagnostics, biomarkers, and therapeutic strategies. Recent findings Recent studies have investigated the molecular underpinnings of cellular dysfunction that is ...
Laurianne Rita, Garabed, Ryan, Flannigan
openaire   +2 more sources

Obstructive and Nonobstructive Azoospermia

2007
Defined as the inability to conceive a pregnancy within 12 mo of unprotected regular intercourse, subfertility affects approx 15% of couples in the United States. Of these couples, 40 to 60% or less will have a particular male factor responsible for their difficulty conceiving.
Kinloch Nelson, Peter Schlegel
openaire   +1 more source

Quantifying Heterogeneity of Testicular Histopathology in Men with Nonobstructive Azoospermia

Journal of Urology, 2021
We sought to determine if testicular histopathological heterogeneity is associated with sperm retrieval rates (SRRs) in men with nonobstructive azoospermia (NOA) who are undergoing microdissection testicular sperm extraction (mTESE).All patients undergoing mTESE by a single, high-volume surgeon at a tertiary infertility referral center between 2010 and
Nahid, Punjani   +4 more
openaire   +2 more sources

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