[Retrograde ureteropyeloscopy in patients after buccal onlay ureteroplasty].

Introduction: After buccal ureteroplasty of long stricture of ureteropelvic junction and proximal ureter, there is a risk of recurrent stricture and urinary stone formation, requiring endoscopic procedure.

Aim: To evaluate the possibility of performing ureteroscopy (URS) in patients after onlay ureteroplasty, as well as to study its results and efficiency.

Materials And Methods: Buccal ureteroplasty was performed in 30 patients who had previously undergone endoscopic and reconstructive procedures on the upper urinary tract.

[Retrograde endoscopic treatment of stones in horseshoe kidney].

Introduction: Horseshoe kidney is often associated with ureteropelvic junction obstruction and nephrolithiasis. Retrograde intrarenal surgery (RIRS) is becoming one of the main treatment options for large stones in such patients.

Aim: To study the results of RIRS in patients with horseshoe kidney.

Management of persistent urine leak after partial nephrectomy: A case series.

Urinary leak is one of the most significant complications after partial nephrectomy. In case of persistent urine leaks, placement of a ureteral stent is effective but not always sufficient. This study included 5 patients with persistent urinary leak after partial nephrectomy.

Role of virtual reality in improving the spatial perception of the kidney during flexible ureteroscopy: A feasibility study using virtual reality simulators and 3D models.

Background: The aims were to describe a software-based reconstruction of the patient-specific kidney cavity intraluminal appearance via a head-mounted device and to estimate its feasibility for training novices.

Materials And Methods: In total, 15 novices were recruited. Each novice was shown a three-dimensional reconstruction of a patient's computed tomography scan, whose kidney was printed.

[Safety and efficiency of retrograde intrarenal surgery without X-ray guidance].

Introduction: The main stages of flexible ureteroscopy in patients with renal stones are usually performed under X-ray guidance. Long-term exposure of ionizing radiation can have negative effects on the patients with nephrolithiasis and the operating team.

Aim: To study the results of retrograde intrarenal surgery (RIRS) without fluoroscopic guidance.

Miniaturization of flexible ureteroscopes: a comparative trend analysis of 59 flexible ureteroscopes.

The purpose of this review is to analyze the trend in miniaturization of flexible ureteroscopes over the past decades, identify the advantages and disadvantages, and determine the correlation of individual parameters with release period. Flexible ureteroscopes mentioned in the literature or those commercially available were searched. To minimize the search bias, the instruments were grouped by release date time periods of < 2000 year, 2000-2009, 2010-2019, and 2020 onwards.

[Laparoscopic substitution of the right ureter by appendix onlay].

Introduction: In highly-selected patients with long narrowing of the middle and upper third of the right ureter, ureteroplasty with an appendix can be performed. In the literature, publications on the possibility of ureteroplasty onlay with a detubularized appendix have been appeared.

Aim: To study the results of laparoscopic ureteroplasty of the right ureter using appendix as onlay flap.

Expanding horizons and navigating challenges for enhanced clinical workflows: ChatGPT in urology.

Purpose Of Review: ChatGPT has emerged as a potential tool for facilitating doctors' workflows. However, when it comes to applying these findings within a urological context, there have not been many studies. Thus, our objective was rooted in analyzing the pros and cons of ChatGPT use and how it can be exploited and used by urologists.

Laparoscopic ventral onlay ureteroplasty with buccal mucosa graft for complex proximal ureteral stricture.

Introduction: There is lack of papers dedicated to the laparoscopic buccal mucosa graft (BMG) ureteroplasty of the complex upper ureteral stricture. The aim of this study is to evaluate the results of laparoscopic BMG ureteroplasty in patients with complex proximal ureteral stricture.

Material And Methods: Twenty-four patients underwent laparoscopic ventral onlay BMG ureteroplasty for long or recurrent proximal ureteral stricture not amenable to uretero-ureteral anastomosis over 2019-2022.

[Ureteroplasty with buccal flap: indications, technique, alternative methods].

This literature review is devoted to the analysis of indications for ureteroplasty with a buccal flap, its technique, and the alternative surgical options. Reconstructive surgery of the ureter has more than a century of history, during which various surgical interventions have been proposed and improved depending on the location and length of the stricture. Over the past decades, a method of replacing the ureter with a flap from the buccal or tongue mucosa was introduced.

[Ureteroplasty using onlay graft for long ureteral strictures].

Full-text articles published in peer-reviewed journals dedicated to the results of onlay ureteroplasty using various materials, as well as monographs on surgical treatment of long ureteral strictures are presented in the article. Over the past decade, onlay technique for the treatment of long ureteral strictures using flaps or grafts on a vascular pedicle have been introduced. Experimental data on the results of onlay ureteroplasty using autologous vein or bladder mucosa, as well as the small intestine submucosa (SIS) have been published in the literature.

Impact of High-fidelity Nonbiological Kidney Puncture Trainer on Residents' Skills During 30-Day Practical Course.

Objective: To describe the manufacture of the nonbiological kidney cavity puncture trainer under ultrasound control and its benefits during the 30-day learning course of junior residents.

Methods: Ten junior residents were included in this work. Each participant performed a kidney puncture on the described simulator under ultrasound control every day for a 30-day practical course.

Three-Dimensional Reconstruction of Pelvicalyceal System of the Kidney Based on Native CT Images Are 1-Step Away from the Use of Contrast Agent.

Objective: To describe special algorithm for the semi-autonomous 3-dimensional reconstruction of the pelvicalyceal system based on native computed tomography images of patients with upper urinary tract obstruction.

Materials And Methods: Fifty patients with renal colic fitting to inclusion criteria were enrolled. All patients underwent computed tomography urography to perform 3-dimensional reconstruction of the pelvicalyceal system on the affected size based on excretory phase representing "gold standard" and on native phase, which was performed via Medical Imaging Interaction Toolkit program updated with the described algorithm.

[Robot-assisted partial nephrectomy with selective ischemia].

Introduction: Clamping of the renal artery during partial nephrectomy leads to renal ischemia and a deterioration of its function. An alternative to total ischemia is to isolate and clamp the segmental branch of the renal artery supplying the tumor.

Aim: To evaluate the efficiency of robot-assisted partial nephrectomy (RAPN) with selective renal ischemia.

[Laparoscopic substitution of the proximal ureter using buccal mucosa].

Introduction: In patients with long ureteral strictures, bowel substitution of the ureter or kidney autotransplantation can be performed, which are technically demanding. For recurrent uretero-pelvic junction obstruction (UPJO) and proximal ureteral strictures, substitution of the ureter using buccal graft may be an alternative.

Aim: to study the results of laparoscopic ureteral substitution in patients with long proximal ureteral strictures using buccal graft.

[Intestinal and appendicular ureteral substitution].

Aim: To present the technical features and results of intestinal and appendicular ureteral replacement.

Material And Methods: From 1998 to 2020, a total of 196 patients aged 18 to 77 years (mean age 49.5 +/- 1.

[InsKid Mobile application for the reconstruction of the internal view of the collecting system].

Introduction: patients with urinary stone disease during consultation often cannot realize their condition and features of upcoming procedure. Creation of 3D printed models is also not always available or too expensive.

Aim: to create a special program that allows for virtual intrarenal visualization of the collecting system and kidney stone on devices based on the Android operating system and evaluate its efficiency in counseling patients before the upcoming percutaneous nephrolithotomy (PCNL).

Interior definition of the calyceal orientation suitable for percutaneous nephrolithotripsy via mobile software.

To date, there is no paper on defining the puncture of a kidney from the interior view of the pelvicalyceal system (PCS) to alleviate its performance. The objective of this study is to define the usefulness of the Rubik's Cube method determining calyceal orientation from inside via mobile software for the percutaneous nephrolithotripsy (PCNL). Over September 2019-September 2020, 25 patients with indications for PCNL were enrolled in this single-arm study.

[Robot-assisted radical cystectomy with neobladder formation].

Introduction: Robot-assisted radical cystectomy (RARC) with intracorporeal neobladder formation is a complex surgical procedure.

Aim: To describe the main stages of RARC and to analyze its short-term results.

Materials And Methods: RARC with ileocystoplasty was performed in 16 patients, most of whom were men (n=14).

InsKid-a new mobile application (app) that measures the infundibulopelvic angle before retrograde intrarenal surgery more reliably than does other approaches: pilot study.

Objective: This study compared our program's ("InsKid") capability for measuring the infundibulopelvic angle (IPA) with existing ones.

Methods: Prospectively, data from 50 patients with lower pole kidney stones with indications for retrograde intrarenal surgery (RIRS) were collected. All patients underwent computed tomography (CT)-urography.

Ureteral substitution with appendix.

Objective: To study the long-term results of ureteral reconstruction with the appendix in patients with long ureteral strictures.

Methods: From 1998 to 2019, 26 patients were operated with substitution of extended defects of the ureter with the appendix. There were 22 women and four men (mean age 44.

Patient Counseling Through the Pelvicalyceal-shaped Labyrinth: In Search of an Easy Understanding of the Upcoming Stone Removal: A Pilot Study.

Objective: To investigate the impact of a mobile application (app) displaying a visualization of the internal anatomy of the pelvicalyceal systemPCS and of kidney stones on patient understanding of their affected kidney anatomy and their upcoming percutaneous nephrolithotripsy (PCNL).

Materials And Methods: One-hundred patients who required PCNL were included in this study, and all patients were nonrandomly distributed into 2 groups: counseled using only 3D-reconstructed computed tomography (CT) images (group 1) or using only the "InsKid" app (group 2). Patient data were obtained from CT scans as Digital Imaging and Communications in Medicine format and converted into stereolithography (STL) format.

[Percutaneous nephrolithotomy in patients with solitary kidney].

Percutaneous nephrolithotomy (PCNL) is the method of choice for large and staghorn renal stones, including those in patients with solitary kidney. The aim of the literature review was to analyze the results of PCNL in patients with large stones in the solitary kidney. The literature search was conducted in databases Embase, Medline, Google Scholar, Scopus for the period from 2010 to 2019.

[Using of a dismountable 3D-model of the collecting system with color segmentation to improve the learning curve of residents].

Aim: to determine the efficiency of using a non-biological dismountable 3D-model of the collecting system with color segmentation for better understanding of its anatomy by residents and to determine the optimal tactics of percutaneous nephrolithotomy (PNL).

Materials And Methods: 3D-models of the collecting system were developed based on CT data of 5 patients with staghorn stones, for whom PNL was planned. CT images were obtained in the Dicom format.