Miniaturization of flexible ureteroscopes: a comparative trend analysis of 59 flexible ureteroscopes
AbstractThe 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. The final review included only those instrument models for which data on tip size, overall shaft, working length and channel size...
Source: Urolithiasis - December 20, 2023 Category: Urology & Nephrology Source Type: research
A new training model using the self-healing properties of supramolecular hydrogels for endoscopic combined intrarenal surgery
AbstractThe combination of hydronephrosis formation, ureteroscopic imaging, and ultrasound delineation has not been included in any non-biological training model of percutaneous nephrolithotomy or endoscopic combined intrarenal surgery. We aimed to develop a realistic kidney phantom using the self-healing properties of supramolecular hydrogels for percutaneous nephrolithotomy and endoscopic combined intrarenal surgery and evaluate its suitability as a training model.Expert and resident urologists performed ultrasound-guided renal pelvic punctures and flexible ureteroscopies for endoscopic combined intrarenal surgery using ...
Source: Urolithiasis - December 20, 2023 Category: Urology & Nephrology Source Type: research
Factors influencing the efficacy of ultrasound-guided extracorporeal shockwave lithotripsy in the treatment of ureteral stones: a retrospective study
AbstractThe aim of the study was to analyze the factors influencing the efficacy of ultrasound-guided extracorporeal shockwave lithotripsy (ESWL) in the treatment of ureteral stones. The clinical data of 8102 patients (6083 men and 2019 women) who presented with ureteral stones were retrospectively analyzed. All the patients were treated with ultrasound-guided ESWL. The stone-free rate (SFR) was calculated to evaluate the effect of ESWL. The characteristics of the patients and their stones, and the ESWL parameters applied were compared to identify the factors affecting the treatment outcomes. The SFR and that following one...
Source: Urolithiasis - December 20, 2023 Category: Urology & Nephrology Source Type: research
What ’s new in the New International Alliance of Urolithiasis (IAU) guidelines
(Source: Urolithiasis)
Source: Urolithiasis - December 20, 2023 Category: Urology & Nephrology Source Type: research
A new training model using the self-healing properties of supramolecular hydrogels for endoscopic combined intrarenal surgery
AbstractThe combination of hydronephrosis formation, ureteroscopic imaging, and ultrasound delineation has not been included in any non-biological training model of percutaneous nephrolithotomy or endoscopic combined intrarenal surgery. We aimed to develop a realistic kidney phantom using the self-healing properties of supramolecular hydrogels for percutaneous nephrolithotomy and endoscopic combined intrarenal surgery and evaluate its suitability as a training model.Expert and resident urologists performed ultrasound-guided renal pelvic punctures and flexible ureteroscopies for endoscopic combined intrarenal surgery using ...
Source: Urolithiasis - December 20, 2023 Category: Urology & Nephrology Source Type: research
Factors influencing the efficacy of ultrasound-guided extracorporeal shockwave lithotripsy in the treatment of ureteral stones: a retrospective study
AbstractThe aim of the study was to analyze the factors influencing the efficacy of ultrasound-guided extracorporeal shockwave lithotripsy (ESWL) in the treatment of ureteral stones. The clinical data of 8102 patients (6083 men and 2019 women) who presented with ureteral stones were retrospectively analyzed. All the patients were treated with ultrasound-guided ESWL. The stone-free rate (SFR) was calculated to evaluate the effect of ESWL. The characteristics of the patients and their stones, and the ESWL parameters applied were compared to identify the factors affecting the treatment outcomes. The SFR and that following one...
Source: Urolithiasis - December 20, 2023 Category: Urology & Nephrology Source Type: research
What ’s new in the New International Alliance of Urolithiasis (IAU) guidelines
(Source: Urolithiasis)
Source: Urolithiasis - December 20, 2023 Category: Urology & Nephrology Source Type: research
Machine learning algorithms in predicting the recurrence of renal stones using clinical data
(Source: Urolithiasis)
Source: Urolithiasis - December 14, 2023 Category: Urology & Nephrology Source Type: research
Effect of co-trimoxazole and N-acetylcysteine alone and in combination on bacterial adherence on ureteral stent surface
AbstractTo assess the effect of co-trimoxazole and N-acetylcysteine (NAC), alone and in combination, on bacterial adherence to biofilm formed on ureteral stent surfaces. This prospective randomized study was conducted on 636 patients who underwent double J ureteral stent insertion after variable urological procedures. Patients were randomized into four groups: A (n = 165), no antibiotics or mucolytics during stent indwelling; B (n = 153), oral NAC (200 mg/day for children aged < 12 years old and 600 mg/day for adults) during stent indwelling; C (n = 162), oral co-trimoxazole (2 mg TMP/kg/day) during ste...
Source: Urolithiasis - December 11, 2023 Category: Urology & Nephrology Source Type: research
Performance of brushite plaster as kidney stone phantoms for laser lithotripsy
AbstractArtificial phantoms used in photothermal near-infrared laser lithotripsy research generally fail to mimic both the chemical and the physical properties of human stones. Though high-energy, 1 J pulses are capable of fracturing hard human stones into several large fragments along natural boundaries, similar behavior has not been observed in commonly used gypsum plasters like BegoStone. We developed a new brushite-based plaster formulation composed of ≈90% brushite that undergoes rapid fracture in the manner of human stones under fragmentation pulse regimes. Single-pulse (1 J) ablation crater volumes for phantoms...
Source: Urolithiasis - December 7, 2023 Category: Urology & Nephrology Source Type: research
AI prediction of extracorporeal shock wave lithotripsy outcomes for ureteral stones by machine learning-based analysis with a variety of stone and patient characteristics
AbstractWe propose an artificial intelligence prediction method for extracorporeal shock wave lithotripsy treatment outcomes by analysis of a wide variety of variables. We retrospectively reviewed the records of 171 patients from between January 2009 and November 2019 that underwent shock wave lithotripsy at Wakayama Medical University, Japan, for ureteral stones shown on preoperative non-contrast computed tomography. This prediction method consisted of stone area extraction, stone analyzing factor extraction from non-contrast computed tomography images, and shock wave lithotripsy treatment result prediction by a non-linea...
Source: Urolithiasis - December 2, 2023 Category: Urology & Nephrology Source Type: research
