PESA | TESA fertility treatment | fertility test | NU Fertility

TESA/PESA/Micro TESE Treatment

Tesa Fertility Treatment Center in Bangalore

Many men have had a vasectomy for contraception and then later regretted the decision to become surgically sterilized. There are 3 general options for attempts at further child bearing in such a situation.

  • Vasectomy reversal surgery.
  • Sperm aspiration from the testicle or vas deferens and then use of the ICSI procedure to fertilize eggs from the female partner and then in vitro fertilization and embryo transfer.
  • Donor sperm insemination of the female partner.

Sperm aspiration from the epididymis or testicle is called PESA or TESA, which is then used ICSI and IVF. It is indicated when there is azoospermia (absent sperms on semen analysis). Sperm can be aspirated with a needle from the testicle or from the epididymus (a structure right next to the testicle that also contains sperm). Sedation or local anaesthesia is used. There should be no severe pain. The procedure generally takes about 30 minutes.

With a PESA or TESA (after vasectomy) there will usually be thousands to millions of sperm retrieved. Unfortunately it is sufficient only for IVF/ ICSI and cannot be used for IUI.

The success rate depends on multiple factors including the women’s age. It is good and comparable to IVF / ICSI with ejaculated sperms in obstructive azoospermia. But the sperm retrieval rates are about 30-35% in testicular failure and in such cases the success rate of IVF/ICSI is less- about 35-40%.