Publications by authors named "Gulpinar O"

: Primary prostatic stromal sarcoma is an exceptionally rare urological malignancy, constituting less than 0.1% of all prostatic cancers. It poses a significant clinical challenge due to its aggressive behavior and poor prognosis.

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Background: We aimed to assess the rates of urethral stricture in transplant recipients, analyse patients with urethral strictures and present the posttreatment follow-up outcomes.

Methods: Between 2004 and 2023, a retrospective examination was conducted on kidney transplant recipients who underwent removal of ureteral catheters through retrograde cystoscopy at our facility or referred from external centres. The collected data encompassed patient demographics, pre- and posttransplant maximum urinary flow rate, specifics of stenosis, surgical interventions and outcomes from a 1-year follow-up.

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Objective: To compare the functional (obstruction relieving) outcomes and complications of unilateral J-cut division, partial and subtotal vaginal removal techniques were performed for mesh-related urethral obstruction (MRUO) in females.

Methods: Patient review included demographics, a medical history and proforma with details of lower urinary tract symptoms (LUTS), physical and urodynamic findings, detailed surgical reports and follow-up data. Variables were compared between the three groups.

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Introduction: Recent guidelines suggest that biopsy may be omitted in some groups of patients with PI-RADS 3 lesions on mpMRI. In this study, we aimed to evaluate biopsy strategies involving prostate-specific antigen density (PSAd) to avoid unnecessary biopsy versus the risk of missing clinically significant prostate cancer (csPCa) in patients with PI-RADS 3 lesions.

Material And Methods: Data of 616 consecutive patients who underwent PSAd and mpMRI before prostate biopsy between January 2017 and January 2022 at a single center were retrospectively assessed.

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Objectives: To determine the effect of intravesical onabotulinum toxin-A (BoNT-A) treatment on sexual functions in female patients with refractory interstitial cystitis/bladder pain syndrome (IC/BPS).

Methods: Female patients with IC/BPS refractory to previous treatments were included in the study between January 2020 and April 2022. Patients were treated with the trigone-sparing injection (Group 1) or trigone-included injection (Group 2) techniques.

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Objective: To evaluate the consistency of the urinalysis results performed with the ORUBA INALYS device, (Oruba, Ankara, Turkey) which can perform urinalysis and uroflowmetry simultaneously, with the analysis results performed with the SYSMEX UC3500 automated urine chemistry analyzer (Sysmex, Kobe, Japan).

Material And Methods: In this prospective study, urinalysis of 50 male patients with lower urinary tract symptoms were evaluated. The parameters of glucose, pH, urobilinogen, bilirubin and ketone, leukocyte, protein, and blood were measured with ORUBA INALYS, and the same urine specimens collected from ORUBA INALYS by a special setup were sent to the laboratory for urinalysis with Sysmex UC-3500 to assess the concordance of the results between two devices.

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Objectives: To present the anatomic outcomes of sacrohysteropexy surgery without posterior mesh placement in patients with asymptomatic grade 1 and 2 rectoceles.

Methods: The patients who underwent abdominal sacrohysteropexy without posterior mesh placement for the treatment of symptomatic grade 3 and 4 anterior/apical prolapse + asymptomatic grade 1 and 2 rectocele between May 2015 and January 2021 were evaluated retrospectively. The success rate, the anatomic outcomes (for anterior, apical, and posterior pelvic organ prolapse [POP]), and perioperative data of the surgical procedure were assessed.

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Introduction: Interstitial cystitis/bladder pain syndrome (IC/BPS) has a negative impact on female sexual function. We aimed to evaluate the effect of intravesical botulinum toxin-A (BTX-A) injection on the improvement of sexual dysfunction and urinary symptoms using the multi-domain female sexual function Index (FSFI), interstitial cystitis symptom index (ICSI), and interstitial cystitis problem index (ICPI).

Material And Method: The data of the 23 patients (study group) who received intravesical BTX-A with the diagnosis of IC/BPS were reviewed.

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Aim: To evaluate the safety (perioperative adverse events) of robot-assisted radical prostatectomy (RARP) and functional outcomes (continence and erectile dysfunction) of open and robotic radical prostatectomy in elderly patients.

Methods: The data of patients (≥70 years old) who underwent open retropubic radical prostatectomy (ORRP) and RARP within the period from November 2014 to February 2019 were evaluated retrospectively. The perioperative adverse events and the functional outcomes of both surgical approaches were evaluated.

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Objective: To compare the patients who have received 1 type of BCG strain during maintenance therapy with patients treated with multiple BCG strains.

Material And Methods: We reviewed 279 patients treated with BCG between January 2012 and May 2019, retrospectively. The primary endpoints of the study were recurrence-free survival (RFS) and progression-free survival (PFS) rates among patients receiving same BCG strain (Group-1) and multiple BCG strains (Group-2).

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Aim: The purpose of this paper is to present the outcomes of three buccal mucosal graft (BMG) urethroplasty techniques in female patients with urethral strictures.

Methods: We included all patients who had BMG urethroplasty for female urethral strictures (FUS) disease between January 2015 and June 2020. Patient age, comorbidities, stricture etiology, stricture length, the number of previous treatments, preoperative and postoperative uroflowmetry data, postvoid residual volumes, and the operation and postoperative course details were documented.

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Aim: To determine the patients who can be safely exempted from undergoing unnecessary diagnostic procedures for microscopic hematuria (MH) evaluation by using the developed individual-risk-scoring system.

Materials And Methods: The patients who underwent a complete urological evaluation for MH were identified retrospectively. The risk factors for urinary malignancy which defined in the 2020 American Urological Association/Society of Urodynamics, Female Pelvic Medicine & Urogenital Reconstruction guidelines were recorded for each patient.

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Objectives: In this study, it is aimed to identify the rate of successful placement of a guidewire down through the ureter during PNL and to compare the outcomes of different locations of guidewires in the collecting system following renal puncture in terms of success and complications rates.

Patients And Methods: Data of 1052 patients who underwent miniPNL in our institution between January 2014 and November 2020 were analysed. Patients were divided into three groups.

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Objective: To compare the 2012 American Urological Association (AUA) and 2020 AUA/Society of Urodynamics, Female Pelvic Medicine & Urogenital Reconstruction (SUFU) microscopic hematuria (MH) guidelines as applied in 1,018 patients with MH, to confirm of risk groups and to investigate the natural history of patients with MH.

Materials And Methods: Patients who had undergone a complete urological evaluation for MH according to the 2012 AUA MH guidelines were identified retrospectively. All the patients were then classified into low-, intermediate-, or high-risk for urinary tract malignancy according to the updated 2020 AUA/SUFU MH guidelines, for a second evaluation.

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Purpose: To evaluate the effect of artery-only (AO) and artery-vein (AV) clamping during partial nephrectomy (PN) on short- and long-term renal function outcome.

Methods: Medical records of 154 patients in the AO group and 192 patients in the AV group who underwent open and minimally invasive (laparoscopic/robotic) PN between January 2011 and January 2018 were retrospectively assessed. Preoperative patient and tumor-specific characteristics in addition to perioperative factors and renal function outcomes were compared.

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Introduction And Hypothesis: The objective was to evaluate the safety and efficacy of robotic-assisted sacrocolpo(hystero)pexy in elderly patients with symptomatic apical pelvic organ prolapse and to compare the outcomes of open abdominal and robotic-assisted sacrocolpo(hystero)pexy in geriatric patients.

Methods: Elderly patients (≥65 years of age) who underwent open abdominal or robotic-assisted sacrocolpo(hystero)pexy for treatment of symptomatic grade 3 and 4 apical pelvic organ prolapse between November 2015 and May 2019 were evaluated retrospectively. The success rates of the procedures, the surgical outcomes, and the perioperative adverse events of both groups were compared.

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Objective: To evaluate the effects of location of the tip of percutaneous sheath and nephroscope in the collecting system together with active aspiration on the Intrapelvic pressure measurements (IPP) during miniaturized percutaneous nephrolithotomy (miniPNL).

Materials And Methods: The data of 20 patients underwent miniPNL in supine position was collected prospectively. IPP measurements were done with an 8 Fr urodynamic pressure measurement catheter in 4 different settings with respect to location of tip of sheath and nephroscope.

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Purpose: To investigate the role of urinary neutrophil gelatinase-induced lipocalin (uNGAL) measurement in the early diagnosis of acute kidney injury that may occur after intraoperative ischemia in patients undergoing partial nephrectomy (PN).

Methods: This prospective study included 86 patients who underwent open laparoscopic or robotic partial nephrectomy between May 2017 and May 2019. During the surgery, whether the patients had ischemia or not, type of vascular clamping and the ischemia time were noted.

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Aim: To validate the Turkish versions of the interstitial cystitis symptom index (ICSI) and interstitial cystitis problem index (ICPI) for use in Turkish speaking patients with bladder pain syndrome/interstitial cystitis (BPS/IC).

Methods: After translation of the original ICSI and ICPI into the Turkish language, Turkish versions of ICSI and ICPI were self-administered to all participants. Test-retest reliability (intraclass correlation coefficient) was evaluated at 2 weeks intervals in the BPS/IC group.

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Purpose: We aimed to compare the success and complication rates of the anterograde and retrograde Ureterorenoscopy (URS) for impacted upper ureteral stones in patients > 65 years of age.

Materials And Methods: Data of 146 patients >65 years of age and underwent anterograde URS (n=68) in supine position or retrograde URS (n=78) for upper ureteral impacted stones>10 mm between January 2014 and September 2018 were collected prospectively. The groups were compared for success and complication rates, duration of operation, hospital stay, and ancillary procedures.

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Purpose: To evaluate the effect of a new mesenchymal stem cell type derived from the neonatal bladder (nMSC-B) on diabetic bladder dysfunction (DBD).

Materials And Methods: nMSC-B were harvested from neonatal male Sprague-Dawley rat's bladder and expanded in culture. nMSC-B were transferred to Type-1 diabetic rats which were induced by a single dose 45 mg/kg Streptozocin (STZ).

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Purpose: To evaluate the effect of a new mesenchymal stem cell type derived from the neonatal bladder (nMSC-B) on diabetic bladder dysfunction (DBD).

Materials And Methods: nMSC-B were harvested from neonatal male Sprague-Dawley rat's bladder and expanded in culture. nMSC-B were transferred to Type-1 diabetic rats which were induced by a single dose 45 mg/kg Streptozocin (STZ).

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Objective: To determine the possible role of potassium sensitivity test (PST) in predicting the success of hydrodistention (HD) in patients with bladder pain syndrome/interstitial cystitis (BPS/IC).

Material And Methods: Patients who underwent PST before diagnostic cystoscopy and HD were evaluated to collect data regarding the visual analog score (VAS) to assess pain, the voiding diary for frequency of urination/nocturia, mean urine volume per void, interstitial cystitis symptom index, and problem index before HD. Patients were requested to provide the VAS of pain at 1 month and 6 months post-HD.

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