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Testicular sperm extraction with intracytoplasmic sperm injection for nonobstructive azoospermia
P N Schlegel1, G D Palermo, M Goldstein
1James Buchanan Brady Foundation, The Department of Urology, New York, New York 10021, USA.
Urology
|March 1, 1997
Summary
Testicular sperm extraction (TESE) can provide fertility for men with nonobstructive azoospermia. While pretreatment factors don't predict success, TESE with ICSI offers pregnancy opportunities for many, though some couples may not retrieve sperm.
Area of Science:
- Reproductive Medicine
- Urology
- Genetics
Background:
- Nonobstructive azoospermia (NOA) presents a significant challenge in male infertility.
- Identifying viable sperm in men with NOA is crucial for assisted reproductive technologies.
Purpose of the Study:
- To evaluate the efficacy of testicular sperm extraction (TESE) in achieving fertility for men diagnosed with nonobstructive azoospermia.
- To assess the predictive value of clinical parameters for successful sperm retrieval in NOA patients.
Main Methods:
- Retrospective review of 16 couples undergoing in vitro fertilization (IVF)-intracytoplasmic sperm injection (ICSI) for nonobstructive azoospermia.
- Sperm retrieval via testicular sperm extraction (TESE) on the day of oocyte retrieval.
- Analysis of testicular histology, hormone levels, and success rates of sperm retrieval, fertilization, and pregnancy.
Main Results:
- Sperm were successfully retrieved in 10 of 16 (62%) TESE attempts.
- Fertilization rates were 52% for retrieved sperm.
- Clinical pregnancies were achieved in 31% of couples, with live deliveries in 25%.
Conclusions:
- Pretreatment clinical parameters cannot reliably predict TESE success in men with nonobstructive azoospermia.
- TESE followed by ICSI offers a viable option for achieving pregnancy in approximately half of couples with NOA where sperm are retrieved.
- A significant proportion of couples (38%) may not achieve sperm retrieval, potentially avoiding unnecessary IVF procedures.