Objective: To determine live birth rate via m-TESE and ICSI in men who had a previous conventional testicular biopsy.
Study Design: Retrospective study was conducted to analyze 86 m-TESE procedures for ICSI in NOA patients who had a previous conventional TESE. Only motile spermatozoa were used for ICSI and all other forms were discarded. Women under the age of 42 years and who produced at least 3 oocytes in response to controlled ovarian stimulation were included in the study. Statistical significance was tested using Student's t-test, χ(2) test and Fisher's exact test as appropriate.
Results: Testicular motile spermatozoa were successfully retrieved in 39 out of 47 men who had spermatozoa found in the previous biopsy (Group I), and in 6 out of 39 men with no sperm in the previous biopsy (Group II) (82.9% vs. 15.3%, respectively; p<0.01). Demographic characteristics of two groups were similar. Live birth rate per repeat m-TESE attempt via ICSI was significantly higher (23.4%, 39/47) in patients with a previous sperm-positive TESE compared to that (2.5%, 1/39) obtained in patients with a previous sperm-negative testicular biopsy (p<0.05).
Conclusion: Repeat attempt to obtain motile spermatozoa by m-TESE following conventional TESE ensures a higher recovery and live birth rate in men who had spermatozoa found in the first recovery procedure compared to men with no spermatozoa in the first testicular biopsy. Live birth rate through ICSI is not promising after repeat m-TESE procedure in patients with a previous sperm-negative testicular biopsy.
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