Publications by authors named "Nevzat Can Sener"

Purpose: Comparing the two different drainage methods of percutaneous nephrostomy (PCN) versus retrograde ureteral double - J (DJ) stent insertion in patients with obstructive pyelonephritis cases.

Material And Methods: In this retrospective study, patients with obstructive pyelonephritis secondary to urolithiasis who underwent PCN or DJ insertion were included in the study. Patients were divided into two groups according to drainage method.

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Aim of this study is to categorize stones between 10 and 20 mm according to stone diameter or volume and compare mini percutaneous nephrolithotomy (mPNL) and retrograde intrarenal surgery (RIRS) outcomes. Files of 515 patients who underwent surgery for kidney stones with sizes 10-20 mm were reviewed. Patients were divided into RIRS or mPNL groups.

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Objective: It is aimed to define the existence of pseudocapsular structure on renal tumours, illuminate the relation between pseudocapsular invasion and Fuhrman grade histological type that are among histopathologic prognostic risk factors and determine the relation between surgical margin positivity and existence of pseudocapsular invasion. Sequential partial nephrectomy series and relevant pathological preparations were retrospectively reviewed in order to evaluate these issues.

Methods: The study includes 123 patients diagnosed with T1 renal tumour and treated with partial nephrectomy in between January 2007 and June 2016.

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Objective: Kidney stones in renal pelvis may be treated using various methods. For larger stones, percutaneous nephrolitotomy (PNL) is the first choice of option; where for smaller stones, shock wave lithotripsy (SWL) or flexible ureteroscopy (F-URS) could be more suitable options. In this article we aimed to compare the outcomes of F-URS and SWL on the treatment of renal pelvis stones <10 mm.

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Objective: To compare standard urotherapy with a combination of urotherapy and biofeedback sessions and to determine the changes that these therapies promote in children with dysfunctional voiding.

Patients And Methods: The data of 45 patients who participated in the study from January 2010 to March 2013 were evaluated. All patients underwent urinary system ultrasonography to determine post-void residual urine volumes and urinary system anomalies.

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Purpose: The ischemia and subsequent reperfusion (IR) which occurs in partial nephrectomy used in the treatment of renal tumors causes loss of parenchyma in the damaged kidney. The aim of this study is to evaluate, both biochemically and histologically, the efficacy of esomeprazole in an ischemia-reperfusion model in rat kidneys.

Methods: The rats were randomized into three groups of seven animals each, referred to as the sham, control, and PPI groups.

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Objective: To compare the outcomes of the first 40 patients to undergo robot-assisted kidney transplantation (RAKT) with those of the first 40 patients who underwent open KT (OKT) by a single surgeon at the Dr Sadi Konuk Training Hospital.

Patients And Methods: We prospectively collected the data of the first 40 patients to undergo RAKT between January 2016 and February 2017 (RAKT group), and compared them with the first 40 patients to undergo OKT between November 2010 and April 2015 (OKT group). Comparisons were made using one-way analysis of variance or the Kruskal-Wallis test for continuous variables, and the chi-squared or Fisher's exact test for categorical variables.

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Objective: To present our experience with laparoscopic donor nephrectomy (LDN), our complications and management modalities. Fifty-one transperitoneal LDNs performed in our clinic between the years 2011, and 2015, were evaluated retrospectively. Demographic characteristics of the patients, operative and postoperative data and complications were evaluated.

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Objective: Robotic kidney transplantation, first described by Hoznek and colleagues, and has been improved by investigators like Oberholzer and Menon. We realized the first robotic kidney transplant (RKT) in our clinic in December 2015. In this study, we aimed to present the first 15 cases we performed within 3 months.

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Background: Different energy sources can be used for ureteroscopic stone fragmentation, such as pneumatic, ultrasonic, laser or electrohydraulic. The aim of this study was to compare the efficacy and safety of pneumatic lithotripters versus Ho: YAG laser in the treatment of multiple stones in the distal ureter.

Methods: A retrospective evaluation was done using the data of patients to whom ureteroscopic lithotripsy (URL) was applied for ureter stones in our clinic.

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Background And Objectives: Robot-assisted laparoscopic radical prostatectomy (RALRP) is said to provide excellent long-term continence. In this study, we compared the early incontinence outcomes of our patients, who had undergone no reconstruction, posterior reconstruction only, or total anatomic restoration and posterior reconstruction.

Methods: We retrospectively analyzed the patients who underwent RALRP for localized prostate cancer by a single surgeon in our clinic from January 1, 2009-February 1, 2016.

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Purpose: To report and discuss the treatment of ipsilateral upper ureteral and renal stones by laparoscopic ureterolithotomy with concomitant pyelolithotomy using flexible cystoscope.

Materials And Methods: A total of 19 patients (14 men and 5 women) underwent laparoscopic retroperitoneal ureterolithotomy with concomitant pyelolithotomy using flexible cystoscope through the ureterotomy site. The mean age of the patients was 37.

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Background And Objective: The present study retrospectively analyzed the data of 213 patients who underwent laparoscopic ureterolithotomy.

Methods: We retrospectively analyzed the data of 213 patients, in whom we performed conventional laparoscopic ureterolithotomy from April 2006 and January 2015 based on the diagnosis of an upper or middle ureteral stone. Patients with large ureteral stones (>15 mm) or a history of failed shock-wave lithotripsy or ureteroscopy were included in the study.

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Purpose: To compare the stone clearance times in patients undergoing extracorporeal shock wave lithotripsy (SWL) or retrograde intrarenal surgery (RIRS) for single radiopaque renal pelvis stones 10-20 mm in size. The results of this study may guide urologists and patients and aid in selecting the optimal preoperative treatment.

Materials And Methods: Between January 2013 and February 2015, we conducted a retrospective study and collected data from 333 patients treated with SWL (n = 172) or RIRS (n = 161).

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Article Synopsis
  • The study compared standard percutaneous nephrolithotomy (PCNL) with a newer technique called intraoperative antegrade flexible nephroscopy (IAFN) for treating staghorn kidney stones.
  • A total of 166 patients with staghorn stones were analyzed, with 105 undergoing standard PCNL and 61 using PCNL with IAFN, showing similar demographics but differing in operation times and recovery metrics.
  • Both methods achieved high stone-free (SF) rates above 85%, with IAFN showing slightly better results, but further research with larger groups is suggested to confirm these findings.
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Objective: The aim of the current study was to investigate whether obesity influences the outcome of extra-corporeal shockwave lithotripsy (ESWL) treatment for upper ureteral stones.

Material And Methods: This is a retrospective study of 134 patients who underwent ESWL between June 2011 and May 2014. Patients were divided into 2 groups.

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Background: The aim of this study was to investigate the effect of Metabolic syndrome (MetS) on the success and complications of percutaneous nephrolithotomy (PNL).

Methods: Two hundred ten patients who had undergone PNL for kidney stones in our clinic between May 2012 and May 2014 were retrospectively analyzed. The patients were divided into two groups based on whether they had diagnostic criteria for MetS.

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The objective of This study was to report our pathological findings in nephrectomy specimens from patients treated for non-functioning hydronephrotic kidney due to renal pelvic stone disease. A total of 97 patients who underwent nephrectomy for non-functioning hydronephrotic kidneys between January, 2011 and June, 2014 were retrospectively reviewed. A non-functioning kidney was defined as one having paper-thin parenchyma on urinary ultrasound or computed tomography, exhibiting no contrast visualization in the collecting duct system on intravenous urography and having a split renal function of <10% on nuclear renal function studies.

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Objectives: To compare the efficacy and reliability of Ho:YAG laser lithotripsy (HLL) and pneumatic lithotripsy (PL) in the treatment of bladder stones in patients with benign prostatic hyperplasia and stones ≥ 20 mm who were transurethrally treated in the same surgical session.

Methods: We studied the data of patients with benign prostatic hyperplasia and ≥20 mm bladder stones who were treated with transurethral resection of the prostate and cystolithotripsy in the same session, obtained between January 2010 and February 2014 from three urology clinics. All patients underwent bipolar plasmakinetic (PK) transurethral resection of the prostate.

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Background And Objectives: Renal cysts have a high prevalence in the general population, and their estimated incidence increases with age. Renal cyst aspiration (usually with sclerotherapy) or open/laparoscopic decortication is a generally effective and safe method in the treatment of symptomatic simple renal cysts. The success rates of laparoscopic decortication and percutaneous aspiration-sclerotherapy were compared to assist in the decision making for the procedure.

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The aim of the study was to compare percutaneous nephrolithotomy (PCNL) and staged retrograde flexible ureteroscopy (FURS) methods used in the treatment of kidney stones of 2 cm or more in diameter. The study comprised a total of 60 patients with a diagnosis of kidney pelvic stones more than 2 cm in diameter, for whom surgery was planned between January 2013 and January 2014. The patients were randomly allocated to two groups as staged retrograde FURS (Group A) and PCNL (Group B).

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Article Synopsis
  • Retrograde intrarenal surgery (RIRS) has emerged as a new method in urology, effectively treating larger kidney stones, yet there's ongoing debate about whether it's better than percutaneous nephrolithotomy (PNL) for these cases.
  • A study analyzed 154 patients who underwent either PNL (74 patients) or RIRS (80 patients), comparing their success and complication rates in treating stones 2-3 cm in size.
  • Results showed a slightly higher stone-free rate for PNL (95.5%) compared to RIRS (80.6%), but RIRS had fewer complications (8.8% for RIRS versus 13.5% for PNL), suggesting RIRS may be a viable alternative to P
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