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Relationship between varicocele size and response to varicocelectomy
J Steckel1, A P Dicker, M Goldstein
1Division of Urology, James Buchanan Brady Foundation, New York Hospital-Cornell Medical Center, New York.
The Journal of Urology
|April 1, 1993
Summary
Varicocele size impacts surgical outcomes. Large varicoceles show greater semen quality improvement after microsurgical ligation, though pregnancy rates are similar across all sizes.
Area of Science:
- Urology
- Andrology
- Reproductive Medicine
Background:
- Varicocele is a common cause of male infertility.
- The relationship between varicocele size and surgical response requires further investigation.
Purpose of the Study:
- To investigate the correlation between varicocele size and treatment outcomes following microsurgical ligation.
- To assess the impact of varicocele grade on semen parameters and pregnancy rates.
Main Methods:
- Retrospective analysis of 86 men with unilateral left varicocele undergoing microsurgical ligation.
- Varicoceles graded by size: Grade 1 (small), Grade 2 (medium), Grade 3 (large).
- Semen parameters (sperm count, motility, fertility index) and pregnancy rates evaluated pre- and post-operatively.
Main Results:
- Preoperatively, Grade 3 varicoceles were associated with lower sperm counts and fertility indexes.
- Significant improvements in sperm concentration were observed in Grade 2 and Grade 3 varicocele groups post-surgery.
- Grade 3 varicocele repair yielded the greatest percentage increase in fertility index (128%).
- Pregnancy rates did not significantly differ among varicocele size groups at 2-year follow-up.
Conclusions:
- Microsurgical varicocele ligation improves semen quality, particularly in men with larger varicoceles.
- While large varicoceles show greater semen parameter improvement, pregnancy rates are comparable across varicocele sizes.
- Varicocele size is a factor in predicting semen quality response to surgical intervention.