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Grade 3 varicocele in fertile men: a different entity
Marcello Cocuzza1, Kelly S Athayde, Conrado Alvarenga
1Department of Urology, University of São Paulo, São Paulo, Brazil. mcocuzza@uol.com.br
The Journal of Urology
|February 21, 2012
Summary
Varicocele grade impacts fertile men, increasing seminal reactive oxygen species and decreasing sperm concentration, especially in grade 3. Further research is needed to assess future infertility risk in these men.
Area of Science:
- Urology
- Reproductive Medicine
- Andrology
Background:
- Varicocele is linked to impaired semen quality and increased oxidative stress in infertile men.
- The impact of varicocele grade on testicular function in fertile men remains largely unknown.
- Reactive oxygen species (ROS) play a role in varicocele-associated infertility.
Purpose of the Study:
- To investigate the effect of varicocele grade on seminal parameters in fertile men.
- To assess the relationship between varicocele grade, testicular size, and seminal reactive oxygen species (ROS) in fertile individuals.
- To compare findings in fertile men with varicocele to infertile men with varicocele.
Main Methods:
- Prospective evaluation of 194 men (156 fertile, 38 infertile controls) between 2004 and 2010.
- Classification of fertile men based on varicocele presence and grade (1-3).
- Comparison of physical examination, semen parameters, and seminal ROS levels across groups.
Main Results:
- No significant differences in testicular size, semen parameters, or ROS between fertile men with and without varicocele.
- Fertile men with grade 3 varicocele showed higher seminal ROS compared to lower grades.
- Increasing varicocele grade correlated with elevated seminal ROS and decreased sperm concentration.
Conclusions:
- Fertile men possess defense mechanisms against varicocele, but these may be insufficient in grade 3 cases.
- Grade 3 varicocele in fertile men is associated with increased oxidative stress and reduced sperm concentration.
- Further investigation is required to determine if fertile men with grade 3 varicocele face an elevated risk of future infertility.
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