TESE / PESA

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TESE / PESA - Surgical Retrieval of Sperm

What is TESE / PESA

A Percutaneous Epididymal Sperm Aspiration (PESA) and Testicular Sperm Aspiration (TESA) are surgical procedures that are used (typically in conjunction with IVF) to find and extract sperm from the male partner who does not have sperm in his semen/ejaculate

In some individuals, spermatozoa may not be present in the ejaculate. This condition is called Azoospermia. This can be either due to problems in sperm production itself or due to obstruction to the flow of semen during ejaculation. Reproductive tract obstruction can be acquired - as a result of infection, trauma, iatrogenic injury which can occur during bladder neck, pelvic, abdominal or inguino-scrotal surgery.

Two Techniques of Sperm Retrieval:

Epididymal sperm retrieval & micromanipulation have revolutionized treatment of male infertility in the past decade. Men with congenital bilateral absence of the vas defences (CBAVD) or reproductive tract obstruction are now able to achieve pregnancies with use of these advanced techniques.

PESA
PESA or Percutaneous Epididymal Sperm Aspiration (PESA), does not require a surgical incision. A small needle is passed directly into the head of the epididymis through the scrotal skin and fluid is aspirated. The embryologist retrieves the sperm cells from the fluid and prepares them for ICSI.

TESA and TESE
TESE or testicular sperm extraction is a surgical biopsy of the testis whereas TESA or testicular sperm aspiration is performed by inserting a needle in the testis and aspirating fluid and tissue with negative pressure. The aspirated tissue is then processed in the embryology laboratory and the sperm cells extracted are used for ICSI