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Semen Surgical Collection (PESA-MESA-TESA-TESE)

Azoospermic patients (no presence of spermatozoa in the ejaculate) have the option to undergo semen surgical collection procedure, a technique for collecting spermatozoa directly from the vas deferens, epididymis or testis. Sperm retrieval may be performed under local or general anesthetic.

The samples can then be prepared for use on the same day after egg collection, cryopreserved for future use, or do both. Once the spermatozoa have been collected and isolated, fertilization can be achieved through ICSI procedure


 PESA (Percutaneous Epididymal Sperm Aspiration)
This procedure involves the insertion of a fine needle into the epididymis. Fluid is gently removed from the epididymis by aspirating it through the needle. This liquid is then analyzed under the microscope for sperm content and motility.

 

 MESA (Microsurgical Epididymal Sperm Aspiration)
This procedure involves microsurgical techniques to remove small samples of epididymal tissue followed by highly specialized laboratory handling and processing and eventual extraction of spermatozoa from the tissue.

 

• TESA (Testicular Sperm Aspiration) 
This procedure involves the insertion of a needle into the testis and the aspiration of spermatozoa through the needle. The liquid is then analyzed under the microscope for sperm content and motility.

 

• TESE (Testicular Sperm Extraction)
TESE procedure, also called testicular biopsy, involves a small surgical incision in the testis, aiming to remove small samples of testis tissue for processing and eventual extraction of sperm.

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