Testicular sperm extraction for patients with spinal cord injury-related anejaculation: A single-center experience

• Published in: International journal of urology Vol. 23; no. 12; pp. 1024 - 1027
• Main Authors: Iwahata, Toshiyuki, Shin, Takeshi, Shimomura, Yukihito, Suzuki, Keisuke, Kobayashi, Tomohiro, Miyata, Akane, Kobori, Yoshitomo, Soh, Shigehiro, Okada, Hiroshi
• Format: Journal Article
• Language: English
• Published: Australia Blackwell Publishing Ltd 01.12.2016
• Subjects: anejaculation; Female; Humans; infertility; intracytoplasmic sperm injection; Male; Pregnancy; Sperm Injections, Intracytoplasmic; Sperm Retrieval; Spermatozoa; Spinal Cord Injuries; spinal cord injury; testicular sperm retrieval; Testis; spinal cord injury; testicular sperm retrieval; anejaculation; infertility; intracytoplasmic sperm injection
• ISSN: 0919-8172; 1442-2042
• DOI: 10.1111/iju.13226

Objectives To present a single‐center experience with testicular sperm extraction and intracytoplasmic sperm injection for fathering biological children in patients with ejaculatory dysfunction as a result of spinal cord injury. Methods Testicular sperm extraction was carried out in 52 male patients with ejaculatory dysfunction as a result of spinal cord injury. We investigated sperm retrieval rates and pregnancy rates from medical records. Data on age, testicular volume, hormonal status (luteinizing hormone, follicle stimulating hormone and testosterone), and time since spinal cord injury were obtained and analyzed to detect potential associations with the presence of spermatogenesis. Results Testicular sperm retrieval was achieved in 42 of 52 patients (80.7%). Intracytoplasmic sperm injection was carried out for 37 patients, and pregnancy was achieved in 32 (86.5%). The take‐home baby rate was 70.2%. In the group with successful sperm extraction, testicular volume was significantly greater, time from spinal cord injury to extraction was significantly shorter, and serum luteinizing hormone and follicle‐stimulating hormone levels were significantly lower. Serum follicle‐stimulating hormone levels had the strongest association with feasibility of sperm retrieval by testicular sperm extraction. Furthermore, the sperm retrieval rates of patients injured within the preceding 12 years were significantly better than those injured longer before treatment (P = 0.045). Conclusions Testicular sperm extraction and intracytoplasmic sperm injection seem to provide favorable results for patients with ejaculatory dysfunction as a result of spinal cord injury. However, early testicular sperm extraction is recommended, because sperm retrieval becomes more difficult with time from spinal cord injury.