Sperm Aspiration is a method in which sperm is extracted from the testicles or the epididymis using a very fine needle or through microsurgery and are used in intracytoplasmic sperm injection (ICSI). The viable sperm is then injected into a woman’s egg. This infertility treatment is more cost effective and simpler than in-vitro fertilization.
Sperm Extraction Techniques
Testicular sperm aspiration (TESA) is a procedure performed for men who have had a vasectomy and who are having sperm retrieved for in-vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI). A needle is inserted in the testicle and tissue/sperm are aspirated. This procedure is coordinated with their female partner’s egg retrieval and is done in an operating room or office with local anesthesia. An open testis biopsy is needed when TESA does not provide enough tissue/sperm.
Percutaneous Epididymal Sperm Aspiration (PESA) PESA is a simple and quick procedure to obtain sperm for Intra Cytoplasmic Sperm Injection (ICSI) in men who have an obstruction of the vas deferens, either due to vasectomy, infection, or other obstruction. Sufficient sperm for ICSI is obtained in 80% of attempts. The procedure is usually performed using a mild sedative and local anesthetic. A very fine needle is inserted into the epididymis where sperm are aspirated for use in an IVF procedure.
Microepididymal Sperm Aspiration (MESA) is a procedure performed for men who have vasal or epididymal obstruction resulting from a vasectomy or absence of the vas defrens. The procedure can be scheduled or done in conjunction with their female partner’s egg retrieval. It is performed in an operating under general anesthesia using an operating microscope. MESA allows for an extensive collection of sperm compared to other aspiration techniques and the sperm can be cryopreserved for future IVF/ICSI.