- October 20, 2017 at 12:39 #4011
In some cases of azoospermia, sperm are being produced but do not find their way towards the ejaculate. This can be resulted by a blockage (e.g., previous vasectomy, infection), congenital absence of the vas deferens, or cases of severely impaired sperm production. In these cases, aspiration of epididymal sperm or testicular sperm by an urologist should be considered.
Years back, the only method to aspirate epididymal sperm was by the microscopic epididymal sperm aspiration (MESA) procedure. This process was conducted in the operating room under general anesthesia. More recently, the percutaneous epididymal sperm aspiration procedure is becoming popular. It may be accomplished under local anesthesia in the office having a much shorter recuperation than the MESA procedure.
If epididymal sperm aspiration does not produce viable sperm, then the urologist can turn to testicular sperm extraction (TESE). In all cases of sperm aspiration, the motility of the sample is very poor thus, the ICSI procedure should be performed. To accomplish this procedure, there has to be coordination in between the urologist and the IVF team. The sperm aspiration can be done at same the time of the oocyte recovery or prior to the IVF cycle and the samples are frozen.
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