Background: Formation or pre-existence of collateral gonadal veins in varicocele patients has been reported as the main cause of surgical treatment failure.
Purpose: To describe venographic findings in patients with postsurgical recurrent varicoceles and to assess the efficacy of the following minimally invasive endovascular treatment.
Material And Methods: Thirty-three men with failed surgical treatment of left-sided varicocele were examined between 2006 and 2013, using retrograde venography to assess the anatomy of varicocele draining veins before the attempted transcatheter embolization. Anatomic variants of gonadal veins were categorized according to the classification modified for the purpose of the present study. 3% polidocanol was used as an embolic agent together with pushable fibered coils.
Results: In 31 (93%) out of 33 patients venography demonstrated incompetence of the gonadal vein or veins draining varicoceles after failed surgical treatment. The most frequent venographic finding was gonadal vein duplication - 66% of cases (39% in its mid-portion). Technical success of embolization was achieved in all 31 patients. No major complications were observed.
Conclusion: Retrograde varicocele embolization may be superior to surgery because of its ability to detect gonadal vein variants. In our study group, transcatheter embolization with 3% polidocanol and fibered coils allowed successful, minimally invasive treatment of postsurgical varicoceles.
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