Publications by authors named "Sedat Tastemur"

Introduction: Ureter may be resistant to insertion of ureteral access sheath (UAS) and/or semi-rigid ureterorenoscope because of the narrow ureter, 'difficult ureter' especially in primary retrograde intrarenal surgery (RIRS) cases. We aimed to delineate the parameters that affect significantly the accessibility of the ipsilateral ureter of the stone-bearing patient side.

Material And Methods: The data of age, gender, body mass index, comorbidities, prior urinary tract infection, prior stone passage, stone burden, stone density, number of stones, stone localization, surgery side, the presence of hydronephrosis and need for double J (DJ) stent due to difficult ureter for all patients were reviewed.

View Article and Find Full Text PDF

Purpose: We analyzed the surgical results of patients who were treated and followed up for prostate cancer in our clinic to predict the relationship between periprostatic adipose tissue and patients with and without pathologically upstaged disease.

Materials And Methods: The study included patients who had undergone robot-assisted radical prostatectomy and preoperative multiparametric prostate magnetic resonance imaging between 18 February 2019 and 1 April 2022. The patients were divided into two groups, and the surgical and transrectal ultrasound-guided biopsy pathology results were compared according to tumor grade and distribution in 124 patients who met the selection criteria.

View Article and Find Full Text PDF

Introduction: The aim of the study was to investigate the value of prostate-specific antigen density (PSAD) and lesion diameter (LD) combination in prostate cancer (PCa) detection.

Methods: 181 patients who were detected to have prostate imaging-reporting and data system (PI-RADS) 3 lesions in mpMRI and underwent prostate biopsies were included in the study. Demographic, clinical, and pathological data of all patients were evaluated.

View Article and Find Full Text PDF

Objective: This study aimed to investigate whether homeodomain interacting protein kinase 2 (HIPK2) polymorphism is associated with renal stone formation in a Turkish population.

Materials And Methods: A total of 129 patients with calcium nephrolithiasis and 67 sex- and age-matched healthy controls were enrolled in the study. Blood samples were collected into EDTA tubes.

View Article and Find Full Text PDF

Purpose: Plasma atherogenic index (PAI) was shown to be positively correlated with the presence of malignity in patients with suspicious findings for renal cell cancer and colon cancer in reported studies. In this study, we aimed to evaluate whether there is an association with the presence of malignity in patients PI-RADS 3 prostate lesions and PAI.

Methods: This retrospective study reviewed the data of 139 patients who underwent transrectal ultrasonography-guided systematic and cognitive fusion prostate biopsy for PI-RADS 3 lesions in multiparametric magnetic resonance imaging.

View Article and Find Full Text PDF

Objective: We aimed to investigate the effect of perirenal fat volume (PFV) on graft functions by calculating the PFV of donor kidney with routine computed tomography before renal transplantation.

Methods: From May 2019 to December 2020, a total of 54 living donors and recipients who met the criteria for kidney donor were included in the study. Left donor nephrectomy was performed to all donors.

View Article and Find Full Text PDF

Purpose: To evaluate the usefulness of E-PASS score to predict postoperative complications after laparoscopic nephrectomy.

Methods: Between 2008 and 2020, 424 patients (179 patients: simple nephrectomy, 158 patients: radical nephrectomy, 87 patients: donor nephrectomy) who underwent laparoscopic nephrectomy in our clinic, were included in the study. Patient groups separated according to the presence of postoperative complications were compared retrospectively regarding demographic, clinical, intraoperative, and postoperative data, comorbidities, and E-PASS scores (PRS, SSS, and CRS).

View Article and Find Full Text PDF

Objective: To examine the relation between perirenal fat volume, which is one of the visceral fat measurements, and kidney stones.

Methods: 169 patients admitted to our clinic between January 2018 and May 2021 were included in the study. The patients were divided into 2 groups as Control Group and Unilateral Kidney Stone Group (88 patients with unilateral kidney stones).

View Article and Find Full Text PDF

Background: To compare the extract of Gilaburu (Viburnum opulus Linnaeus) and Tamsulosin as a medical expulsive therapy (MET) in patients with distal ureteral calculi of 10 mm or less.

Methods: Data of 86 patients were prospectively collected. The patients were divided into two groups.

View Article and Find Full Text PDF

Background: The aim of this study was to investigate the early outcome of living donor kidney transplantation using allografts with a single artery and multiple arteries.

Methods: From February 2018 to December 2019, a total of 62 patients underwent living donor nephrectomy at our institution: 20 multiple artery donor nephrectomies (MADNs) and 42 single artery donor nephrectomies (SADNs). All operations were performed by the same surgeon as the laparoscopic procedure.

View Article and Find Full Text PDF

Studies which examine the factors affecting success rate in kidney stones located in the lower pole as well as the effects of infundibulopelvic angle (IPA) and infundibular length (IL) have been conducted with a small number of patients. We aimed to evaluate the cut-off points of IPA and IL parameters that effect the success of retrograde intrarenal surgery (RIRS) for isolated lower pole kidney stones. This retrospective study includes 168 patients who underwent primary RIRS due to isolated lower pole kidney stones in our clinic between January 2013 and May 2020.

View Article and Find Full Text PDF

Aim: To investigate incidental prostate cancer (IPCa) rate and to determine prostate specific antigen (PSA) cut-off value indicating PCa in patients who underwent surgery by being diagnosed with benign prostatic hyperplasia (BPH) clinically or by standard prostate biopsy.

Methods: Data of 317 patients, who underwent transurethral resection of the prostate (TURP) or open prostatectomy (OP) with pre-diagnosis of BPH, were evaluated retrospectively. The examined parameters included patients' demographics, preoperative serum PSA values, digital rectal examination (DRE) findings, surgical method, histopathological findings and Gleason Scores.

View Article and Find Full Text PDF

Cystoscopy is one of the most common procedures in outpatient urology. Although flexible cystoscopes are more tolerable, rigid cystoscopes have still been used in many clinics because of their lower costs, better visual performance, and easier handling. It can be difficult to achieve optimal relief of pain and anxiety during rigid cystoscopy.

View Article and Find Full Text PDF

Background/aim: The male sling operation and artificial urinary sphincter implantation are common methods for treating urinary incontinence. However, there are some drawbacks to these methods such as infection, urethral erosion, pain, inefficiency, and the technical difficulty of the operations. Here we describe a new device we have named the Turkish Continence Device (TCD) which has advantages over these other methods.

View Article and Find Full Text PDF

Objective: To determine if there is a difference between postoperative urinary infection rates after retrograde intra-renal surgery (RIRS) when ureteral access sheath (UAS) was used or not used.

Materials And Methods: We retrospectively analyzed the medical records of all patients who underwent RIRS at our institution between January 2016 and October 2018.

Results: 129 patients were included in the study.

View Article and Find Full Text PDF

Objective: To evaluate the variables of cystic renal lesions to predict the renal tumors.

Study Design: An observational study.

Place And Duration Of Study: Urology Department, Ankara Yüksek Ihtisas, Samsun Research and Training Hospitals, Turkey, from January 2013 to June 2017.

View Article and Find Full Text PDF

Objective: To determine if there is a difference in proceeding to CKD between patients who had undergone radical nephrectomy (RN) and simple nephrectomy (SN) for different indications by comparing the short- and long-term renal function.

Materials And Methods: We retrospectively analyzed the records of all patients who underwent nephrectomy (either for malign or benign indications) in our clinic between January 2007 and September 2017. The patients were divided into 2 groups according the type of surgery: 1) Radical nephrectomy Group, 2) Simple Nephrectomy Group.

View Article and Find Full Text PDF
Article Synopsis
  • - This study is the first to explore the association between CD47 expression levels and bladder cancer stages, revealing that CD47 is a key marker for tumor progression from Ta to T1 stages.
  • - Analysis of surgical specimens from 175 patients showed significantly lower CD47 staining in Ta tumors compared to T1 and more advanced stages, indicating its potential role in diagnosing bladder cancer.
  • - The findings suggest that CD47 could aid in distinguishing between different bladder cancer stages and improving treatment strategies, prompting the need for further research on its diagnostic and prognostic capabilities.
View Article and Find Full Text PDF

Introduction: For small renal calculi (< 2 cm) the currently available treatment options include extracorporeal shockwave lithotripsy (ESWL), retrograde intrarenal surgery (RIRS) and standard/mini percutaneous nephrolithotomy (PNL). A new method, microperc, has therefore been developed, in which a smaller tract size and smaller instruments were used.

Aim: To present our clinical experiences with micropercutaneous nephrolithotripsy (microperc) in the treatment of small renal calculi.

View Article and Find Full Text PDF

Background: The aim of this study was to research the importance of the neutrophil to lymphocyte ratio (NLR) in prediction of PSA recurrence after radical prostatectomy, which has not been reported so far.

Materials And Methods: The data of 175 patients who were diagnosed with localised prostate cancer and underwent retropubic radical prostatectomy was retrospectively examined. Patient pre-operative hemogram parameters of neutrophil count, lymphocyte count and NLR were assessed.

View Article and Find Full Text PDF

Glomerular filtration rate (GFR) is directly proportionate to nephron reserves. In this respect, it is known that the patients who underwent radical nephrectomy due to renal tumor are under high risk of chronic kidney disease (CKD) in the long term. In this study, it was aimed to compare post-operative renal functions of patients who underwent radical nephrectomy due to renal malignancy and who underwent donor nephrectomy as renal donors, to observe whether renal failure process develops or not, and to determine the factors that affect post-operative renal functions.

View Article and Find Full Text PDF