Browsing by Author "Guvel, Sezgin"

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The Course of Renal Function After Radical Cystectomy with Ileal Conduit Diversion for Bladder Cancer
(2019) Oze, Cevahir; Goren, Mehmet Resit; Egilmez, Tulga; Kilinc, Ferhat; Guvel, Sezgin; 0000-0002-7850-6912; 0000-0002-2001-1386; 0000-0001-6037-7991; AAM-2222-2020; Y-6143-2019
Objective: We evaluated the course of the renal function and potential risk factors for renal deterioration in patients who had undergone radical cystectomy with ileal conduit diversion. Materials and Methods: A retrospective study evaluated 121 patients, including 114 male and 7 female who underwent radical cystectomy with ileal conduit diversion. Estimated glomerular filtration rate (eGFR) was calculated and postoperative changes in renal function were reviewed. The clinical variables influencing renal function were evaluated. Results: The median follow-up period was 35.6 months (range, 12.2 to 139.6 months). The mean eGFR was 78.37 +/- 27.58 mL/min/1.73 m(2) before surgery and 90.14 +/- 29.68 mL/min/1.73 m(2) at 5 years postoperatively. The comparison of preoperative eGFR and the last follow-up eGFR showed the no statistically significant difference (p=0.195). Statistical analysis showed that development of postoperative urinary tract obstruction and postoperative urinary tract infection were significant adverse factors (p=0.008, p=0.026, respectively). Conclusion: Thirty two patients (53.3%) developed renal deterioration during the follow-up period. Development of urinary tract obstruction and urinary tract infection in the postoperative period were found to be significant adverse factors affecting renal function.
Gigant Malign Germ Cell Tumor Occured in Intraabdominal Undescended Testis
(2015) Reyhan, Mehmet; Guvel, Sezgin; Yapar, Ali Fuat; 0000-0001-6534-9981; 0000-0003-1715-4180; 0000-0001-8550-3368; AAL-4363-2021; AAI-8973-2021; AAJ-5242-2021
Varicocelectomy in Patients with Non-obstructive Azoospermia
(2019) Ozer, Cevahir; Goren, Mehmet Rasit; Gul, Umit; Tunc, Tahsin; Guvel, Sezgin; 0000-0001-6037-7991; AAM-2222-2020
Objective: We evaluated the outcomes of varicocelectomy in men with non-obstructive azoospermia (NOA) and a palpable varicocele. Materials and Methods: We retrospectively evaluated 25 male patients with NOA having a palpable varicocele, between May 2006 and December 2018. Age, duration of infertility, testicular volume, grade and side of varicocele, varicocelectomy technique, and serum follicle-stimulating hormone, serum luteinizing hormone and serum testosterone levels were analyzed. Results: The mean age of the patients was 30.68 +/- 3.91 years. Of the 25 patients, 5 (20%) had motile sperm in the ejaculate in the postoperative semen analysis. There were no predictive factors affecting the appearance of the sperm in the ejaculate. Conclusion: Varicocelectomy should be considered a treatment option for men with NOA having a palpable varicocele.