Şentürk, Aykut BuğraÇakıroğlu, BasriYaytokgil, MuhammetAydın, CemilSungur, MustafaAkkoç, Ali2021-11-012021-11-012020Senturk, A. B., Cakiroglu, B., Yaytokgil, M., Aydin, C., Sungur, M., & Akkoc, A. (2020). Effect of venous reflux time on testosterone and semen parameters of infertile males after microscopic varicocelectomy. Andrologia, 52(6), e13583.0303-45691439-0272https://doi.org/10.1111/and.13583https://hdl.handle.net/11491/7161This study aimed to search whether there is a link between reflux flow and hormonal profile. Data of 250 patients were retrospectively investigated. Pre-operative and 6th month semen analyses of these patients' results were compared with pre-operative and post-operative 6th month serum levels of testosterone. Based on the venous flow on pre-operative Doppler ultrasonography, patients were divided into two groups. Patients with a venous flow <= 4 s were assigned to Group 1 and those with a venous flow >4 s to Group 2. Venous reflux time cut-off was calculated as 4 s using ROC curve according to the increase in testosterone level. When venous reflux time was selected as approximately 4.0 s, ROC had 79.8% sensitivity and 72.8 specificity. The probability of a post-operative increase in testosterone is high in patients with a venous reflux time longer than 4 s.eninfo:eu-repo/semantics/closedAccessInfertileRefluxTimeVaricoceleVenousArticle52610.1111/and.13583Q3WOS:0005421136000052-s2.0-8508305777832271466Q1