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[Seminal tract reconstruction: 15 years experience]
1Deutsche Gesellschaft für Andrologie, Hamburg, Allemagne.
Summary
Surgical repair of obstructive azoospermia, including epididymo-vasostomy and vaso-vasostomy, can restore patency and fertility. Surgical technique and surgeon experience significantly impact success rates for men with blocked reproductive tracts.
Area of Science:
- Urology
- Andrology
- Surgical Science
Context:
- Excretory azoospermia, characterized by normal FSH and testicular size, indicates surgical intervention for obstruction.
- Over 15 years, 642 men underwent epididymo-vasostomy for inflammatory, inborn, or acquired epididymal obstructions.
- Vaso-vasostomy was performed in 724 men, primarily for post-sterilization or post-herniotomy obstructions.
Purpose:
- To evaluate the success rates of surgical interventions for obstructive azoospermia.
- To analyze factors influencing patency and fertility following reconstructive surgery.
- To highlight techniques and outcomes for improving surgical success in azoospermia treatment.
Summary:
- Epididymo-vasostomy achieved patency rates of 11-76% and fertility in 0-52% of cases, varying by anastomosis location.
- Vaso-vasostomy demonstrated higher patency (52-92%) and fertility (38-74%) depending on obstruction duration.
- Improved outcomes were noted with double-layered anastomosis, fibrin glue, and tension-avoiding surgical techniques. Testicular transposition was successful in some long-obstruction cases.
Impact:
- Surgical success is significantly correlated with the frequency of the procedure, underscoring the importance of surgeon experience.
- Obstruction duration negatively impacts postoperative spermiogram quality.
- Sperm autoantibody levels were elevated in only 3% of cases and often normalized post-surgery.