1. Procedure:
PESA is a minimally invasive procedure performed under local anesthesia.A fine needle is inserted into the epididymis (a tube where sperm matures and is stored) to aspirate (suction out) sperm.The procedure is typically quick, taking about 20-30 minutes.
2. Usage:
The collected sperm is usually used for Intra-Cytoplasmic Sperm Injection (ICSI), a specialized form of In Vitro Fertilization (IVF) where a single sperm is injected directly into an egg.PESA can be an alternative to more invasive procedures like Testicular Sperm Extraction (TESE).
3. Indications:
Obstructive azoospermia due to congenital absence of the vas deferens, prior vasectomy, or other blockages.In some cases, PESA can also be used in non-obstructive azoospermia, though success rates may vary.
4. Success Rates:
The success of PESA largely depends on the cause of azoospermia and the skill of the performing urologist.Success rates for subsequent fertilization and pregnancy depend on factors including the quality of the retrieved sperm and the female partner's reproductive health.
5. Recovery:
Recovery from PESA is typically quick, with minimal discomfort and risks.Complications are rare but can include infection or bleeding.
6. Advantages:
Less invasive than surgical retrieval methods.Lower risk of complications and quicker recovery time.Can often be performed on an outpatient basis.