[Surgery to improve male fertility].

Background: At a time when increasing attention is being paid to the limitations and risks of in vitro fertilisation techniques, surgeries to improve male fertility are attracting growing interest.
Methods: Systematic review based on a Pubmed search of surgeries to improve male fertility.
Results: Vasovasostomy (VV) gives patency rates of 70-97% and pregnancy rates of 30-76%. Vasoepididymostomy (VE) gives patency rates of 80-84%, with pregnancy rates of 40-44%. The duration of obstruction and the age of the partner are 2 predictive parameters for the occurrence of a natural pregnancy. In cases of obstructive azoospermia due to pelvic obstruction (prostatic cyst, obstruction of the ejaculatory ducts), several surgical procedures may be proposed. Transurethral resection of the ejaculatory ducts leads to an improvement in sperm parameters in 63-83% of patients, with spontaneous pregnancy occurring in 12-31% of cases. Microsurgical cure of varicocele by the subinguinal route is a benchmark technique with recurrence rates of less than 4%. It improves live birth and pregnancy rates, both naturally and by in vitro fertilization, as well as sperm count, motility and DNA fragmentation rates.
Conclusion: Whenever possible, the urologist should present the surgical options for improving male fertility to the ART team and to the couple, discussing the benefit/risk balance of the operation as part of a personalized approach.
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