Publications by authors named "Sinan Celen"
Purpose: With significant advancements in laparoscopic procedures and tools over the last decade, the partial nephrectomy (PN) surgical approach has gradually transformed from open to laparoscopic partial nephrectomy (LPN). Although numerous studies evaluating the postoperative complications of laparoscopic partial nephrectomy can be found in the literature, a scoring system that addresses both preoperative physical condition and intraoperative risk factors has not yet been established. The Estimation of Physiological Ability and Surgical Stress (E-PASS) score is a scoring system that considers both the patient's preoperative condition and intraoperative variables to predict the risk of postoperative complications in surgically treated patients.
View Article and Find Full Text PDFObjective: This study's objective is to assess the effect of preoperative factors on postoperative hydroureteronephrosis (HUN) after radical cystectomy (RC) in patients with bladder cancer (BC).
Methodology: Patients who underwent RC for BC between January 2019 and November 2022 and had unilateral or bilateral postoperative HUN were retrospectively analyzed. Patients without preoperative HUN but with postoperative HUN constituted the patient group, while patients without both preoperative and postoperative HUN constituted the control group, and they were compared with each other.
Introduction: Prostate cancer (PCa) is a common and leading course of cancer-related death in men. Although there are studies on multiparametric magnetic resonance imaging (MpMRI) with good diagnostic results in detecting clinically significant PCa, new methods have been investigated due to the low positive predictive values. In this context, prostate-specific membrane antigen positron emission tomography (PSMA PET) emerges as an alternative imaging method to MpMRI.
View Article and Find Full Text PDFBackground: Our aim is to determine the accuracy of [68Ga]Ga-PSMA PET/CT in showing PSMA expression in primary prostate cancer and to investigate the relationship between SUVmax and immunohistochemical PSMA expression, Gleason score, and PSA value.
Material And Methods: We retrospectively analyzed 66 male patients who were diagnosed with primary prostate adenocarcinoma, underwent pre-treatment [68Ga]Ga-PSMA PET/CT examination for staging, and performed radical prostatectomy between March 2018-August 2020. Immunohistochemical staining was applied to the radical prostatectomy specimens of all patients to detect PSMA expression.
Objective: To evaluate the efficacy of perineal electrical stimulation (ES) on anxiety, depression, incontinence-related quality of life (QoL), and clinical parameters in men with urinary incontinence (UI) after radical prostatectomy (RP).
Methods: Fifty-eight men with UI after RP were randomized into two groups using the random numbers generator as follows: Group 1 received perineal ES (n:29), and Group 2 no treatment (n:29). Perineal ES was performed in lithotomy position via a stimulation device (Enraf Myomed 632) with surface electrodes, 3 days a week, 20 min a day, for a total of 24 sessions for 8 weeks.
Objectives: We aimed to reveal the change of urological emergencies during the COVID-19 pandemic compared to the same period of the previous year.
Methods: The number of admissions to the emergency department (ED), admissions to the urology outpatient clinic, emergency urological consultations, and urological and emergency urological surgeries during the periods April-November-2019 and April-November-2020 were recorded. The data of the COVID-19 period were compared with the previous year.
Background: Fournier's gangrene (FG) is a disease with high mortality rate. The first diagnosis is performed in the emergency department (ED). In this study, we investigated the importance of the time period for diagnosis in the ED.
View Article and Find Full Text PDFHolmium:yttrium-aluminium-garnet (Ho:YAG) laser lithotripsy with ureteroscopy (URS) was a safe and successful treatment option for pediatric ureteral stones. We aimed to comparatively evaluate the outcomes of 15 and 30 W Ho:YAG laser lithotriptors in pediatric ureter stones. We retrospectively evaluated 55 children who underwent ureteroscopic laser lithotripsy to treat ureter stone size up to 15 mm between September 2009 and March 2020.
View Article and Find Full Text PDFBackground: Vesical Imaging Reporting and Data System (VI-RADS) is a useful tool for evaluating muscle layer invasion of bladder cancer (BCa) on magnetic resonance imaging (MRI).
Purpose: To evaluate the diagnostic performance of bladder MRI to detect the muscle layer invasion of BCa using VI-RADS score and quantitative MRI parameters.
Methods: Preoperative bladder MRI was performed in 73 BCa patients.
Objectives: To investigate the operation time (OT) and ureteral access sheath (UAS) usage with the infection rates and to determine a cut-off value for OT.
Methods: We retrospectively analysed the data of the patients who underwent flexible ureterorenoscopy (FURS) for renal stones larger than 20 mm between 2010 and 2019. The investigated parameters were OT, UAS using, and infection status.
Background/aim: The objective of this work was to assess the value of 68Ga-DOTAGA-(3-iodo-y)fk(Sub-KuE) positron emission tomography (68Ga-PSMA-I/T PET-CT) and multiparametric magnetic resonance imaging (mp-MRI) for preoperative staging in prostate cancer (PCa) patients who underwent radical prostatectomy (RP) by validating with postoperative histopathology data.
Materials And Methods: We prospectively investigated 30 consecutive PCa patients who had both mp-MRI and 68Ga-PSMA-I/T PET-CT before laparoscopic RP. The seminal vesicle invasion (SVI), lymph node metastasis (LNM), bladder neck invasion (BNI), and extracapsular extension (ECE) were investigated separately.
Purpose: In this study, we aimed to determine the prevalence of lower urinary tract symptoms (LUTS) in patients with Behçet disease (BD) and to investigate the relationship between the severity of BD and LUTS.
Methods: Fifty-five patients with BD were included in this study from January to December 2018. All patients received a detailed urological evaluation.
Introduction And Hypothesis: To present the surgical details and the outcomes of our modified ventral onlay buccal mucosal graft (BMG) urethroplasty technique in female patients with urethral strictures.
Methods: We included the first seven female patients who had BMG urethroplasty between January 2015 and April 2019 and had at least 6 months of follow-up. Patient age, stricture length, comorbidities, number of previous treatments, pre- and postoperative uroflowmetry data, and post-void residual volumes were recorded.
Objective: In this study, we aim to compare the perioperative and midterm oncological outcomes in patients with advanced bladder cancer and those who had laparoscopic radical cystectomy (LRC) and open radical cystectomy (ORC).
Material And Methods: We retrospectively reviewed medical records of patients who underwent LRC or ORC in a single center between 2008 and 2014 with a pathological diagnosis of pT3 and pT4 bladder cancer. Thirty-five and 39 patients were included in the study as part of the LRC and ORC groups, respectively.
Spontaneous ureter rupture (SUR) is a rare condition that can present mimicking many acute abdominal diseases. There is no probable explanation of the theoretical mechanism of spontaneous ureter rupture in the literature. Mostly calculus can cause spontaneous ureter rupture with ureteral obstruction.
View Article and Find Full Text PDFPurpose: To present the results of our one-stage oral mucosa graft urethroplasty series for panurethral strictures.
Methods: We included the first 35 patients who had one stage oral mucosa graft urethroplasty with one side dissection of the urethra which was described by Kulkarni, between January 2015 and June 2018 and had at least 6 months follow-up. From the first case, all data were recorded prospectively and patient age, etiology of the stricture, comorbidities, previous treatments, postoperative maximal flow rate, pre and post-operative erectile function, perioperative and postoperative complications and quality of life questionnaire for this study.
Objective: To comparatively evaluate the traditional interrupted knot-tying and running suture renorrhaphy with Monocryl® in laparoscopic partial nephrectomy (LPN).
Materials And Methods: A retrospective analysis of 62 consecutive patients undergoing LPN using traditional interrupted knot-tying suture renorrhaphy (Group 1; n=31) or running suture technique renorrhaphy with 2-0 monofilament polyglecaprone (Monocryl®, Ethicon) (Group 2; n=31) from December 2011 to October 2015 at the University. All patients underwent LPN performed by an experienced laparoscopic surgeon.
Purpose: To compare the outcomes of percutaneous nephrolithotomy (PCNL) in 2 age groups.
Methods: Fifty-one renal units (RU) of 45 patients were operated between January 2006 and December 2010. In all patients, PCNL was performed by pediatric nephroscope of 17F size through a 20F Amplatz sheath.