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287 results on '"Degirmenci, Tansu"'

36. Association Between Postoperative 3rd Month Renal Function After Radical Cystectomy and Preoperative Factors, Oncologic Outcomes, and Complications

Author

Sefik, Ertugrul, Basmaci, Ismail, Degirmenci, Tansu, Celik, Serdar, Yarimoglu, Serkan, Bozkurt, Ibrahim Halil, Yonguc, Tarik, and Gunlusoy, Bulent

Subjects
lcsh:Internal medicine, estimated glomerular filtration rate, lcsh:Specialties of internal medicine, Bladder cancer, lcsh:R, lcsh:Medicine, lcsh:Diseases of the genitourinary system. Urology, lcsh:RC870-923, lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens, lcsh:RC254-282, hydronephrosis, lcsh:RC581-951, postoperative renal function, lcsh:RC31-1245, radical cystectomy
Abstract

Objective:We aimed to investigate the influence of preoperative factors on postoperative renal function and the association between renal function and oncologic outcomes and complications after radical cystectomy (RC).Materials and Methods:We retrospectively analyzed patients who underwent RC due to muscle-invasive bladder cancer and intravesical treatmentresistant nonmuscle-invasive bladder cancer in our center between January 2006 and March 2017. The patients’ age, gender, comorbidities, preoperative estimated glomerular filtration rate (eGFR), presence of hydronephrosis, hydronephrosis grade and laterality, urinary diversion type, preoperative and postoperative pathology findings, eGFR at postoperative 3rd month, oncologic outcomes, and complication rates were evaluated. The patients were divided into 2 groups based on postoperative eGFR: group 1 (rd month eGFR. Postoperative eGFR

Published
2018

44. Predictive Value of Additional Clinical and Radiological Parameters for Discrimination of Malignancy in Bosniak 3 Cysts

Author

Sefik, Ertugrul, primary, Bozkurt, Ibrahim Halil, additional, Oguzdogan, Gulsen Yucel, additional, Çelik, Serdar, additional, Basmaci, Ismail, additional, Gorgel, Sacit Nuri, additional, Aydin, Erhan, additional, Adibelli, Zehra Hilal, additional, Vardar, Enver, additional, Gunlusoy, Bulent, additional, and Degirmenci, Tansu, additional

Published
2020
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46. Retrospective Analysis of the Factors Affecting Intraoperative and Immediate Postoperative Complications of Retrograde Intrarenal Surgery Classified by the Clavien and Satava Grading Systems.

Author

Koras, Omer, Bozkurt, Ibrahim Halil, Karakoyunlu, Ahmet Nihat, Celik, Serdar, Sefik, Ertugrul, Yarımoglu, Serkan, Polat, Salih, Sahan, Murat, and Degirmenci, Tansu

Subjects
SURGICAL complications, FACTOR analysis, URINARY calculi, KIDNEYS, KIDNEY stones, PERCUTANEOUS nephrolithotomy
Abstract

Background: To classify intraoperative and postoperative complications using the modified Clavien classification system (MCCS) and modified Satava classification system (SCS) and to evaluate the parameters associated with complications in patients undergoing retrograde intrarenal surgery (RIRS) for renal and proximal ureteral stones. Materials and Methods: We performed a retrospective analysis of 949 patients who underwent RIRS for renal stones and proximal ureteral stones at two institutions between March 2015 and June 2020. Intraoperative complications were assessed using the SCS, and postoperative complications were graded according to the MCCS. Univariate and multivariate analyses were undertaken to determine predictive factors affecting complication rates. Results: The median stone size was determined as 13 mm (range 10–20 mm). The stone-free rate was 83.6% after the first intervention. Reprocedure was applied to 89 of the patients with residual stones and the final stone-free rate was 94.4% after reprocedure. According to SCS, the number of intraoperative events and complication incidences was 153 (16.1%). MCCS revealed postoperative complications in 121 (12.8%) patients. Major complications were observed in 18 (1.9%) patients. The rate of complications was higher in patients with renal anomalies (9.9% vs 3.4%, p = 0.001). Stone location, stone size, stone burden, stone number, stone density, and residual fragments were determined to be associated with the development of complications (p < 0.001, p < 0.001, p < 0.001, p < 0.001, p = 0.002, and p < 0.001, respectively). In addition, the multivariate analysis revealed that only the presence of residual fragments was a significant predictor of complication development for the patients with Grade ≥3 complications according to MCCS (p = 0.032). However, significant predictors were stone burden (p < 0.001), stone density (p = 0.002), and fluoroscopy time (p < 0.001) for those with Grade ≥2b complications according to SCS. Conclusion: This study showed that abnormal kidney anatomy, operation time, stone burden, and residual fragments were reliable predictors of complication development during and after RIRS. Appropriate preoperative management should be planned according to these predictors to prevent intraoperative and postoperative complications. [ABSTRACT FROM AUTHOR]

Published
2021
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48. The course of alterations in ureteral jet dynamics following kidney transplantation: a prospective observational cohort study

Author

Celik, Serdar, primary, Acar, Türker, additional, Simsek, Cenk, additional, Yesilova, Arda, additional, Tatar, Erhan, additional, Bozkurt, Ibrahim Halil, additional, Topcu, Yusuf Kadir, additional, Sefik, Ertuğrul, additional, Basmaci, Ismail, additional, Gunlusoy, Bulent, additional, Degirmenci, Tansu, additional, and Uslu, Adam, additional

Published
2020
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