Testis sperm extraction

Area of Science:

• Reproductive Medicine
• Urology
• Andrology

Background:

• Non-obstructive azoospermia (NOA) was historically considered untreatable infertility.
• Recent advancements have significantly improved treatment options for men with NOA.
• Isolated regions of spermatogenesis are common in NOA testes.

Purpose of the Study:

• To review surgical management techniques for NOA.
• To explore various testicular sperm retrieval methods.
• To compare the efficacy and outcomes of different sperm retrieval procedures.

Main Methods:

• A comprehensive PubMed search was conducted using keywords such as 'sperm extraction', 'NOA', 'testicular FNA', 'TESE', and 'testicular biopsy'.
• Articles were reviewed, prioritizing those with data on sperm retrieval rates.
• Surgical techniques and their outcomes were analyzed.

Main Results:

• Microdissection TESE (micro-TESE) demonstrates higher sperm retrieval rates compared to conventional TESE.
• Micro-TESE is associated with fewer postoperative complications.
• Micro-TESE has less negative impact on testicular function than conventional TESE.

Conclusions:

• Sperm retrieval techniques, including TESE, micro-TESE, and FNA, have transformed NOA treatment.
• Micro-TESE offers superior outcomes in terms of sperm retrieval and patient safety.
• These techniques enable sperm harvesting for assisted reproduction in men with NOA.