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ORIGINAL ARTICLE
Year : 2012  |  Volume : 28  |  Issue : 1  |  Page : 37-42

Testicular fine-needle aspiration versus testicular open biopsy: Comparable sperm retrieval rate in selected patients


Department of Urology, Imam-Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran

Correspondence Address:
Mohsen Ayati
Department of Urology, Imam-Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran 1419733141
Iran
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-1591.94954

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Background: Sperm recovery by testicular fine-needle aspiration (TESA) has resulted in variable sperm retrieval rate (SRR) and is generally considered inferior to open biopsy (testicular sperm extraction [TESE]). Aims: To develop a predictive model for SRR by TESA and to identify factors associated with comparable SRR between TESA and TESE. Settings and Design: Single-center controlled cross-sectional study on 450 infertile men with nonobstructive azoospermia. Materials and Methods: Clinical, paraclinical, and histological information of patients were gathered. All patients underwent both TESA and TESE in a single operation. Predictors of SRR by TESA were identified, and the accuracy of TESA in predicting the outcome of TESE was determined. Statistical Analysis Used: Categorical and continuous variables were compared using independent t test and -chi-square test. Logistic regression model was applied to develop a predictive model for SRR by TESA. Receiver Operating Characteristics (ROC) curve analysis was used to determine the accuracy of TESA in predicting TESE outcome. Results: Sperm retrieval rate for TESA and TESE was 41.8 and 50.9%, respectively (P = 0.04). Age, duration of infertility, testis volume, luteinizing hormone, prolactin, and testosterone did not differ between patients with and without mature sperm in TESA samples. Serum follicular-stimulating hormone (FSH) < 15 IU/l (Exp (B) = 4.8, 95% CI: 1.4-18.5; P = 0.001) and histology of hypospermatogenesis (Exp (B) = 6.4, 95% CI: 2.1-27.4; P < 0.001) were predictors of SRR by TESA. In patients with FSH < 15 IU/l (57.4% versus 59.5%; Area under the curve (AUC) = 0.907) and testicular histology of hypospermatogenesis (68.0% versus 70.5%; AUC = 0.890), the SRR by TESA was predictive of SRR by TESE. Conclusions: Serum FSH and testicular pathology were predictors of SRR by TESA. Patients with FSH < 15 IU/l and/or testicular pathology of hypospermatogenesis had comparable SRR by TESA versus TESE.


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