This procedure is very similar to a MESA, but only a local anaesthetic is required. The surgeon uses a small needle to aspirate sperm directly from the epididymas, which, as in the MESA procedure is taken back to the RMU laboratory to be frozen and used at a later date or used immediately during an ICSI cycle.
Sperm
It is possible to freeze sperm prior to a treatment cycle, so as to ensure that there is sufficient sperm available at the time of your partners egg collection. Sperm can also be frozen …

Percutaneous Epididymal Sperm Aspiration (PESA): A needle is passed through the scrotal skin and into the epididymis in order to aspirate sperm. Because the epididymal tubule is very delicate and convoluted, the yield with a needle is typically small and usually only sufficient for a …