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Microdissection testicular sperm extraction and IVF-ICSI outcome in nonobstructive azoospermia
P Ravizzini1, C Carizza, V Abdelmassih
1Clínica e Centro de Pesquisa em Reprodução Humana Roger Abdelmassih, São Paulo, Brazil. ravizzini@pobox.com
Andrologia
|August 30, 2008
Summary
Microdissection testicular sperm extraction (MicroTESE) is effective for nonobstructive azoospermia (NOA) patients undergoing in vitro fertilisation (IVF)/intracytoplasmic sperm injection (ICSI), yielding good pregnancy outcomes. Pre-operative factors like FSH and testosterone may predict success.
Area of Science:
- Reproductive Medicine
- Andrology
- Infertility Treatment
Background:
- Nonobstructive azoospermia (NOA) presents a significant challenge in male infertility.
- Microdissection testicular sperm extraction (MicroTESE) is a surgical technique to retrieve sperm in NOA patients.
- Success rates and predictive factors for MicroTESE require further elucidation.
Purpose of the Study:
- To evaluate the efficacy of MicroTESE in NOA patients.
- To assess pregnancy outcomes in couples utilizing in vitro fertilisation (IVF) with intracytoplasmic sperm injection (ICSI).
- To identify potential pre-operative predictors of sperm retrieval success.
Main Methods:
- Fifty-six MicroTESE procedures were performed in 53 NOA patients.
- Pre-operative hormonal levels (FSH, LH, testosterone, prolactin) and Doppler sonography were assessed.
- Sperm retrieval, ICSI, fertilization, implantation, pregnancy, and miscarriage rates were calculated.
Main Results:
- The sperm retrieval rate was 57.1%.
- Significant differences in testicular volume, serum FSH, and total testosterone were observed in patients with successful sperm retrieval.
- Clinical pregnancy and implantation rates were 40% and 20%, respectively, with a 18.7% miscarriage rate.
Conclusions:
- MicroTESE is a viable and effective option for sperm retrieval in men with NOA.
- Pre-operative serum FSH, testicular volume, and testosterone levels may hold prognostic value for sperm retrieval.
- Further research is needed to confirm the predictive significance of these factors for patient selection.
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