Testicular sperm aspiration (TESA) vs testicular sperm extraction (TESE) — TESE is preferred in which condition?

• A Obstructive azoospermia due to congenital bilateral absence of vas deferens (CBAVD)
• B Non-obstructive azoospermia (NOA) due to maturation arrest or hypospermatogenesis ✓
• C Retrograde ejaculation
• D Ejaculatory duct obstruction

Explanation

In non-obstructive azoospermia (NOA), sperm production is severely impaired and focal spermatogenesis may exist in isolated tubular areas. Microdissection-TESE (micro-TESE) provides higher sperm retrieval rates (50–60%) in NOA versus conventional TESE or TESA by allowing direct visual identification of dilated seminiferous tubules. In obstructive azoospermia (OA), sperm are abundant throughout the testis and simpler aspiration techniques (TESA, PESA) suffice.

Reference: Shaw's Textbook of Gynaecology, 17th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.