Human Reproduction, Vol. 15, No. 3, 653-656,
March 2000
© 2000 European Society of Human Reproduction and Embryology
Prospective comparative study between microsurgical and conventional testicular sperm extraction in non-obstructive azoospermia: follow-up by serial ultrasound examinations
1 Departments of Andrology and 2 Radiology, Cairo University Hospitals, Cairo and 3 Adam International Clinic, Giza, Egypt
The value of testicular sperm extraction (TESE) by microdissection was evaluated according to its physiological consequences compared with open, classic surgical biopsy in the same patient. A total of 100 patients with non-obstructive azoospermia and bilateral identical testicular histology underwent bilateral diagnostic TESE via the conventional method on one side and the microsurgical method on the other side. The spermatozoa recovery rate by microdissection TESE was significantly higher than by conventional TESE (47 and 30% respectively; P < 0.05). In order to assess the safety of this new procedure, 60 patients were followed-up ultrasonographically for 1, 3 and 6 months. Acute and chronic complications were significantly lower in the microsurgical side compared with the conventional side (15 and 58.3% respectively and 3 and 30% respectively; P < 0.05). Segmental devascularization was detected in seven testes operated on conventionally, and in two testes operated on microsurgically. However, permanent devascularization could not be detected in any patient after 6 months. These findings suggest that microdissection TESE is not devoid of complications, but that it is relatively safer than the conventional technique and improves sperm yield significantly in patients with non-obstructive azoospermia.
Key words: microdissection/microsurgery/non-obstructive azoospermia/sperm retrieval/testicular biopsy
4 To whom correspondence should be addressed at: Adam International Clinic, 20 Aden Street, Mohandessin, Giza, Egypt
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