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Epididymal sperm aspiration and in-vitro fertilization (IVF) with intracytoplasmic sperm injection is an established treatment for obstructive azoospermia. Sperm aspiration is performed with either an incision or percutaneously. To control costs, minimize morbidity and retain the advantages of both approaches, we developed a mini-incision technique for epididymal aspiration and here report sperm retrieval and procedure-related outcomes. Twenty-six consecutive patients with obstructive azoospermia underwent epididymal sperm retrieval through a 1 cm incision with local anaesthesia to provide spermatozoa for concurrent IVF cycles. The quality of retrieved spermatozoa, the quantity of spermatozoa cryopreserved as well as anaesthetic requirement, recovery time and patient satisfaction were evaluated. Fresh epididymal spermatozoa were retrieved in 25 of 26 (96%) patients. In one patient, testicular sperm extraction was necessary. Excess motile spermatozoa were cryopreserved in 24 of 26 (92%) patients; a mean total motile count of 4.8x10(6) motile spermatozoa were banked. The procedure was performed with 62% of patients receiving minimal i.v. sedation. Post-procedure recovery was rapid, with a median time to return to work of 2.0 days with a median of 2.0 pain pills taken. Procedure-related satisfaction was high. The mini-micro-epididymal sperm aspiration achieves the goals of reliable retrieval of abundant epididymal spermatozoa with a single, minimally morbid procedure. It appears to combine the advantages of the incision and percutaneous approaches.

The mini-micro-epididymal sperm aspiration for sperm retrieval: a study of urological outcomes