نتایج جستجو برای: subclinical varicocele

تعداد نتایج: 18536  

2006
Daniel H. Williams

Varicocele is the most common diagnosis in men presenting to fertility clinics, Table 1.1 The incidence of varicocele in the general population has been reported to be 13.4% or greater, whereas 37% or more of infertile men have been noted to have varicoceles.2 The World Health Organization (WHO) investigated the influence of varicocele on fertility in men presenting to infertility clinics and c...

2015
Ibrahim J. Hammadi

Background: it is well known that the varicocele affects male fertility and had adverse effects on the findings of the standard seminal analysis. According to size of that veins; the varicoceles are divided into clinical that are discovered in physical examination and their harmful effects are proved and subclinical varicoceles that are only discovered by Doppler examination. And till now, the ...

2010
Chang Jin Yoon Hyun Jun Park Nam Cheol Park

PURPOSE The aim of this study was to evaluate the relationship between the levels of reactive oxygen species (ROS) and the clinical characteristics of varicoceles among patients with varicocele-induced infertility. MATERIALS AND METHODS Ninety-eight patients with infertile varicocele and 22 control subjects without varicocele were enrolled. Blood samples were drawn from the brachial vein (BV)...

2012
Ricardo Miyaoka Sandro C. Esteves

Varicocele is a major cause of male infertility, as it may impair spermatogenesis through several distinct physiopathological mechanisms. With the recent advances in biomolecular techniques and the development of novel sperm functional tests, it has been possible to better understand the mechanisms involved in testicular damage provoked by varicocele and, therefore, propose optimized ways to pr...

Journal: :Asian journal of andrology 2016
Bruno C Tiseo Sandro C Esteves Marcello S Cocuzza

The objective of this review was to summarize the evidence concerning the benefit of varicocele treatment to improve natural fertility in subfertile males. We also analyzed the effect of varicocele treatment on conventional semen parameters and sperm functional tests. An electronic search to collect the data was performed using the PubMed/MEDLINE databases until July 2015. Data pooled from a va...

Journal: :American Journal of Roentgenology 1987

2013
Kyu Hyun Kim Joo Yong Lee Dong Hyuk Kang Hyungmin Lee Ju Tae Seo Kang Su Cho

PURPOSE To elucidate the impact of surgical varicocele repair on the pregnancy rate through new meta-analyses of randomized clinical trials that compared surgical varicocele repair and observation. MATERIALS AND METHODS The PubMed and Embase online databases were searched for studies released before December 2012. References were manually reviewed, and two researchers independently extracted ...

2005
GIOVANNI MARIA COLPI CRISTINA GRUGNETTI

Between September 1999 and December 2002 we evaluated 307 men aged 17–51 years who had varicocele with semen anomalies. In all of the men, the clinical diagnosis was confirmed by scrotal colour Doppler ultrasonography (US). Dubin and Amelar’s classification [4] was used for the clinical examination. The vascular diagnosis was made by the method of Annoni et al. [5], considering the presence of ...

Journal: :International journal of andrology 1998
F H Pierik J T Vreeburg T Stijnen J H van Roijen G R Dohle J S Laméris T Timmers R F Weber

The debate regarding the efficacy of varicocele ligation for improvement of semen parameters and pregnancy rates is ongoing. In addition, no consensus exists as to the benefit of treatment of subclinical varicoceles. The aim of this study was to investigate, retrospectively, the effect of high ligation of both subclinical and clinical varicoceles on sperm count and motility. The value of severa...

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