Surgical sperm retrieval may be a treatment option for men with:
In the first three conditions, sperm are produced by the testes, but are unable to be ejaculated because of the blockage or absence of the vas. The man can still ejaculate seminal fluid but this fluid will not contain any sperm. It is possible to collect sperm directly from the epididymis.
Occasionally it may be possible to surgically unblock the tube that carries the sperm during the ejaculation process, although this has a low success rate. In cases of vasectomy surgical correction in the form of vasectomy reversal may offer another treatment to this problem. This is a self-funded treatment that is not avaialable at CRM.
In cases of non-obstructive azoospermia (complete absence of sperm) very small amounts of sperm may be produced and can be collected directly from the testes. This is done by performing multiple testicular biopsies at random. In these cases a biopsy will normally be sent to the laboratory for analysis as to the possible cause of the problem.
In men with obstructive azoospermia there is a very high chance of recovering sperm by this method (>90%). In men with non-obstructive azoospermia the chances of recovering sperm is approximately 40%. If we are successful at retrieving sperm the pregnancy rate for this treatment is very similar to that of ICSI with ejaculated sperm.
PESA (Percutaneous epididymal sperm aspiration) is the collection of sperm through a fine needle directly from the epididymis, where sperm is stored, after it is formed in the testes.
TESE (Testicular sperm extraction) is the collection of sperm from a biopsy or several biopsies from the testicular tissue after making a small incision in the scrotal skin.
The above procedures are carried out either under light general anaesthetic combined with the use of a local anesthetic. It requires only a few hours of hospital stay. The material collected will be examined and you will be advised on the same day about the quality of the material and whether there is any sperm present. Any material with sperm will be frozen and place in storage for use at a later stage. These specimens are then thawed and used to inject the eggs obtained during IVF treatment using the technique of ICSI. If surgical retrieval of sperm is successful, usually enough sperm is obtained for several cycles of treatment (if required).
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IMPORTANT INFORMATION ON BLOOD TESTING DUE TO COVID-19
If you are experiencing symptoms associated with COVID-19, e.g. fever, loss of taste or continuous new cough, please DO NOT attend for a blood test.
Click on the map for information about phlebotomy clinics in Coventry. You can book an appointment online at the locations in red.
Please book an appointment before attending for a blood test. Click on the ‘Book Online’ button above. Booking an appointment helps patients, their carers and family members to plan their hospital visit better, helping to reduce clinic waiting times and enabling patients to be seen much more quickly.
Location: Outpatients Department, on the ground floor. Opening hours: 8am-4.45pm, Monday to Friday (excluding bank holidays).
Children under 16 years old will need to book online here.
Please book an appointment before attending for a blood test, click on the ‘Book Online’ button above. Patients from Rugby and the surrounding areas are able to access the Friends Blood Taking Unit at the Hospital of St Cross.
Referrals for blood tests can be from GP's, practice nurses or from hospital consultants. Patients are also able to leave other samples, such as urine, which have been collected at home, at the hospital's Pathology Reception.
Location: Near Brookfield House, just off North Road - map here. Opening hours: The blood taking clinic sessions for adults and children are listed below:
Monday -Friday 7am-4:45pm Appointment only
Wednesday Evening 5pm-7pm Suspended due to COVID
Saturday Morning 7am-10pm Suspended due to COVID
April 2020 NEW - This Clinic is now by appointment. Please book an appointment before attending for a blood test. Click on the ‘Book Online’ button above.
Address: Stoney Stanton Road, Coventry CV1 4FS Location: Access is via the main doors, the Phlebotomy team are in Area A. Opening hours: Monday to Friday (excluding bank holidays). 8am–4.45pm
Glucose Tolerance Test (GTT)
Specialist Tests - There are a small number of specialist tests where blood needs to be taken on a hospital site as the sample must be transferred to the laboratory rapidly for the test to be undertaken. Click here for a list of these specialist tests and to find out more.