Can we predict postoperative fever and urinary tract ınfection after retrograde ıntrarenal surgery? Results of a case control matching multicentric RIRSearch study group.

Purpose: Postoperative fever (POF)/urinary tract infection (UTI) is one of the most unpleasant and undesirable conditions for surgeons after retrograde intrarenal surgery (RIRS). RIRS is not recommended for any patient with a positive urine culture to avoid POF and UTI, but some patients may develop postoperative UTI even if the urine culture is sterile. This study investigated the predictive factors of fever and UTIs after RIRS.

Which is a Better Predictor for the Safety and Efficacy of Retrograde Intrarenal Surgery; Stone Size or Volume? A Study of RIRsearch Study Group.

To compare the predictive effects of stone size and volume on the efficacy and safety of retrograde intrarenal surgery (RIRS) and to determine the cutoff values of stone volume for prediction of RIRS efficacy and safety. Patients who underwent RIRS between 2017 and 2021 in six referral centers were retrospectively included in the study. The database of the RIRsearch group, which was formed prospectively, was used for this retrospective analysis.

Lower Pole Stones Are Associated with Low Stone-Free Rates in Retrograde Intrarenal Surgery: A Myth or Fact? - A Matched Case-Control Study from the RIRSearch Group.

Introduction: There are conflicting results in the literature regarding the efficacy of retrograde intrarenal surgery (RIRS) in lower pole stones. This study aimed to evaluate RIRS outcomes in lower pole stones by forming matched case-control groups.

Methods: The data of 491 patients who were diagnosed with kidney stones and underwent RIRS were retrospectively included in the study.

The impact of preoperative ureteral stent duration on retrograde intrarenal surgery results: a RIRSearch group study.

A JJ stent placed before retrograde intrarenal surgery (RIRS) may ease the procedure. However, it is important to note that a prolonged duration of double J stent (DJS) placement before RIRS may increase the risk of postoperative urinary tract infection (UTI). Various publications have established this association, although the duration of the DJS before surgery is scarce.

The Efficacy and Safety of Retrograde Intrarenal Surgery in Elderly Patients: A Propensity Score Matching Study by the RIRSearch Group.

Introduction: The aim of the study was to evaluate the efficacy and safety of retrograde intrarenal surgery (RIRS) in elderly patients by comparing them with propensity score-matched age-groups.

Methods: Patients who underwent RIRS to treat upper urinary tract stone disease at seven centers were included in the study and were divided into four groups. The age intervals of the patients in group 1, group 2, group 3, and group 4 were 18-29 years old, 30-49 years old, 50-64 years old, and over 65 years old, respectively.

The Effect of Reusable Flexible Ureteroscope Aging on the Efficacy and Safety of Retrograde Intrarenal Surgery.

Reusable flexible ureteroscopes may lose their mechanical functionality through overuse, which is known as "aging of the flexible ureteroscope." Although mechanical deterioration has been shown in several studies, the data about the effect of this situation on the efficacy and safety of retrograde intrarenal surgery (RIRS) are missing. The aim of our study was to evaluate the effect of the aging of flexible ureteroscopes on the efficacy and safety of RIRS.

Determining the Stone Free Rate of Retrograde Intrarenal Surgery. Which Radiological Technique? RIRSearch Study Group.

Objective: To evaluate the sensitivity and specificity of ultrasonography (USG) and kidney ureter bladder radiography (KUB) for the determination of stone-free status of retrograde intrarenal surgery (RIRS) according to different stone-free status definitions.

Materials And Methods: The patients who underwent RIRS between September 2021 and September 2022 were prospectively included in the study. All patients underwent a KUB radiography, urinary system USG and noncontrast abdominal tomography at the postoperative first month of the surgery.

Safety and Efficacy of Retrograde Intrarenal Surgery in the Solitary Kidney: A Propensity Score-Matched Analysis of the RIRSearch Study Groups' Results.

The aim of this study was to evaluate the efficacy and safety of retrograde intrarenal surgery (RIRS) in patients with renal calculi with solitary kidneys (SKs). In this retrospective, multicenter study, a matched case-control study was carried out using the data from 522 RIRS patients treated between 2014 and 2021. Patients' demographic data, stone characteristics, operative outcomes, perioperative and postoperative complications, and surgical success were analyzed.

The Effect of Ureteral Access Sheath Use/Caliber Change on Outcomes of Retrograde Intrarenal Surgery, Short-Term Kidney Functions, Radiation Exposure, Ureteroscope Lifetime, and Factors Predicting Insertion Failure: A RIRSearch Study.

The aim of this study was (1) to explore effect of ureteral access sheath (UAS) use on primary retrograde intrarenal surgery (RIRS) outcomes, short-term kidney functions, radiation exposure, and ureteroscope lifetime (URS-LT) and (2) to reveal factors that predict UAS insertion failure. Patients ( = 1318) who underwent RIRS without UAS (Group 1), those who had operation with a <11-13 Fr (Group 2), and those with a ≥11-13 Fr UAS were matched (1:1:2) and compared. Stone-free rate (SFR), intra- and postoperative complications, acute kidney injury (AKI), fluoroscopy time, URS-LT, and UAS insertion failure were the outcomes.

Is It a Good Strategy to Proceed a Retrograde Intrarenal Surgery Session Sheathless After Ureteral Access Sheath Insertion Failure? A RIRSearch Study.

To complement our previous findings regarding effect of ureteral access sheath (UAS) use, we checked RIRSearch database for patients who operated without using UAS. The aim of the study was to understand these new data better by comparing outcomes of retrograde intrarenal surgery (RIRS) that continued sheathless after a failed UAS insertion those planned and completed sheathless. Data of 195 patients who underwent sheathless RIRS for kidney and/or ureteral stones between 2011 and 2021 were retrieved from the database.

The Prevalence of Urinary Tract Infection Following Flexible Ureterenoscopy and the Associated Risk Factors.

Purpose: To evaluate the risk factors for urinary tract infection (UTI) after retrograde intrarenal surgery (RIRS).

Materials And Methods: A retrospective evaluation of the records of patients who underwent RIRS from January 2013 to September 2016 was performed. All interventions were done by the same surgeon and by applying the same technique.

Ureteroscopic Urinary Stone Treatment Among Patients With Renal Anomalies: Patient Characteristics and Treatment Outcomes.

Objective: To evaluate patients' characteristics, surgical procedure data, and outcomes of ureterorenoscopy (URS) stone treatment in patients with a horseshoe kidney (HSK), ectopic kidney (EK), and malrotated kidney (MK).

Materials And Methods: This study is a subanalysis of the Clinical Research Office of the Endourological Society URS Global Study, which was a prospective multicenter observational study, collecting data on URS stone treatment from consecutive patients over a 1-year period. A total of 114 centers in 32 countries participated.

Prevalence of Lower Urinary Tract Symptoms Among Individuals Aged 50 Years and Over and Its Effect on the Quality of Life in a Semi-Rural Area of Western Turkey.

Objectives: The number of individuals with lower urinary tract symptoms (LUTS) is increasing as the average age of the men in the community increases. This study aimed to determine the prevalence of LUTS and to assess the quality of life in men aged 50 years and older in Sivrihisar.

Methods: This cross-sectional study was conducted in men aged over 50 years and included 450 subjects.

Effects of hyperbaric oxygen therapy on hydrochloric acid-induced interstitial cystitis in rats: a histological and ultrastructural study.

Introduction: Currently no definitive cure exists for interstitial cystitis (IC). We investigated the therapeutic effects of hyperbaric oxygen (HBO₂) therapy in this syndrome in an experimental IC model through biochemical analyses and histopathological assessments.

Methods: 24 Sprague Dawley rats were divided into three treatment groups sham (transurethral intravesical injection with sterile distilled water), rats with IC (induced by transurethral intravesical injection with hydrochloric acid), and rats with IC + HBO₂.

Effect of Work-Related Factors on Lower Urinary Tract Symptoms in Nurses and Secretaries.

Objective: The objective of the present study was to examine the relationship between work-related factors and lower urinary tract symptoms (LUTS) and to emphasize the vicious circle between symptoms and work conditions.

Methods: The Turkish version of the Nurse Bladder Survey was used to estimate the prevalence of LUTS and to assess the relationship between individual characteristics, personal habits and work-related factors in nurses and secretaries who were working in Eskisehir Osmangazi University Hospital. The Turkish version of the Short Form 36 Health Survey was used to assess the nurses' and secretaries' health-related quality of life (HRQL).

Relationship between Twinkle Artefacts and in vivo Biochemical Composition of Kidney Stones.

Introduction: Our aim was to predict the chemical composition of kidney stones according to their twinkle artefact (TA) features obtained by in vivo color Doppler ultrasonography and to determine the potential factors affecting the formation and intensity of TAs.

Materials And Methods: A total of 101 patients who met the inclusion criteria were included in the study. All patients were evaluated for TAs using color Doppler ultrasonography.

Effect of αlipoic acid and silymarin on bladder outlet obstruction.

The aim of the present study was to determine whether the treatment of obstructed rat bladders with αlipoic acid (ALA) and silymarin reverses the biochemical and physiological responses to bladder outlet obstruction (BOO). A total of 32 adult Sprague Dawley rats were divided into four groups (n=8 per group): sham (placebo surgery) animals with no treatment (group 1); control animals with surgically induced BOO (group 2); obstructed rats treated with ALA (group 3); and obstructed rats treated with silymarin (group 4). Histological evaluation, bladder weights, collagen structure, TdT-mediated biotin nick end-labeling (TUNEL), inducible nitric oxide sentase (iNOS) mRNA levels, malondialdehyde (MDA) levels and tumor necrosis factor (TNF) levels were investigated.

Early detection and gemcitabine/cisplatin combination positively effect survival in sarcomatoid carcinoma of the urinary bladder.

Background And Objectives: This study aimed to present the clinicopathological characteristics and treatment of patients with bladder carcinoma with sarcomatoid differentiation at our institution.

Methods: Between 1995- 2009, 950 patients were followed-up for bladder carcinoma. Among them, 14 patients with sarcomatoid carcinoma were retrospectively reviewed, and their clinical, pathological features and treatment were recorded.

Effects of rotenone on inducible nitric oxide synthase and cyclooxygenase-2 mRNA levels detected by real-time PCR in a rat bladder ischemia/reperfusion model.

We aimed to determine whether rotenone treatment prevents induced ischemia/reperfusion (I/R) damage in rat bladders by detecting inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) levels by real-time PCR (RT-PCR). A total of 18 Sprague-Dawley albino rats were used in this experiment. The experimental groups each consisted of 6 rats and were treated as follows: group I, control; group II, I/R; group III, rotenone + I/R.

Pretreatment parameters obtained from peripheral blood sample predicts invasiveness of bladder carcinoma.

Purpose: To predict the invasiveness of urothelial bladder carcinoma using a logistic regression model on preoperative peripheral blood samples.

Patients And Methods: Hospital data of patients operated for urothelial carcinoma were reviewed retrospectively. Preoperative blood samples were collected before the first cystoscopic examination.

Groin abscess due to a forgotten midurethral sling connector.

Midurethral slings (MUS) have been used for female stress urinary incontinence throughout the past decade on a worldwide scale. Although this minimally invasive treatment has high success rates, formation of groin abscesses, as well as vaginal and urethral erosions, can occur after the procedure. We report a patient presenting with groin abscess and sinus tract formation after a transobturator tape procedure.

Verrucous carcinoma of the renal pelvis with a focus of conventional squamous cell carcinoma.

Verrucous carcinoma (VC) is a rare variant of squamous cell carcinoma (SCC) with an extremely well-differentiated microscopic appearance. It is able to show extensive local invasion, but practically never metastasizes. VCs mostly occur in the oral cavity, larynx, nasal cavity, esophagus, vulva, vagina, anorectal region, penis and skin.