Finding the optimal candidate for shock wave lithotripsy: external validation and comparison of five prediction models
AbstractWe aimed to externally validate five previously published predictive models (Ng score, Triple D score, S3HoCKwave score, Kim nomogram, Niwa nomogram) for shock wave lithotripsy (SWL) single-session outcomes in patients with a solitary stone in the upper ureter. The validation cohort included patients treated with SWL from September 2011 to December 2019 at our institution. Patient-related variables were retrospectively collected from the hospital records. Stone-related data including all measurements were retrieved from computed tomography prior to SWL. We estimated discrimination using area under the curve (AUC), ...
Source: Urolithiasis - April 7, 2023 Category: Urology & Nephrology Source Type: research
Kidney function may partially mediated the protective effect of urinary uromodulin on kidney stone
AbstractThe causal links between urinary uromodulin (uUMOD) and kidney stone disease (KSD) are still not clarified in general population. We assessed their relationships combining 2-sample Mendelian randomization (MR) and multivariable (MVMR) designs among general population of European ancestry. The summary information for uUMOD indexed to creatinine levels (29,315 individuals) and KSD (395,044 individuals) were from 2 independent genome-wide association studies (GWAS). The primary causal effects of exposures on outcomes were evaluated using inverse variance-weighted (IVW) regression model. Multiple sensitivity analyses w...
Source: Urolithiasis - April 6, 2023 Category: Urology & Nephrology Source Type: research
Causal association of genetically predicted urinary sodium –potassium ratio and upper urinary calculi
This study demonstrated a positive causal association between the urinary sodium–potassium ratio and upper urinary calculi using MR analysis. Timely identification of changes in urine composition and dietary regulation of sodium and potassium intake could greatly reduce the incidenc e of future urinary calculi. (Source: Urolithiasis)
Source: Urolithiasis - April 4, 2023 Category: Urology & Nephrology Source Type: research
Microureteroscopy in the treatment of upper urinary tract stones in pediatric patients younger than 3 years of age
AbstractThe aim of this study is to evaluate the usefulness of microureteroscopy (m-URS) in the treatment of renal and ureteral stones in children younger than 3 years of age. A retrospective analysis of pediatric patients aged < 3 years with upper urinary tract calculi who underwent lithotripsy was performed. The children were divided into the m-URS group (4.85 F,n = 41) and the ureteroscopy (URS) group (4.5/6.5 F,n = 42) according to the type of ureteroscope used. The mean age of the patients was 23.5 ± 10.7 months in the m-URS group and 20.6 ± 7.1 months in the URS group (P = 0.212). T...
Source: Urolithiasis - April 4, 2023 Category: Urology & Nephrology Source Type: research
Causal association of genetically predicted urinary sodium –potassium ratio and upper urinary calculi
This study demonstrated a positive causal association between the urinary sodium–potassium ratio and upper urinary calculi using MR analysis. Timely identification of changes in urine composition and dietary regulation of sodium and potassium intake could greatly reduce the incidenc e of future urinary calculi. (Source: Urolithiasis)
Source: Urolithiasis - April 4, 2023 Category: Urology & Nephrology Source Type: research
Microureteroscopy in the treatment of upper urinary tract stones in pediatric patients younger than 3 years of age
AbstractThe aim of this study is to evaluate the usefulness of microureteroscopy (m-URS) in the treatment of renal and ureteral stones in children younger than 3 years of age. A retrospective analysis of pediatric patients aged < 3 years with upper urinary tract calculi who underwent lithotripsy was performed. The children were divided into the m-URS group (4.85 F,n = 41) and the ureteroscopy (URS) group (4.5/6.5 F,n = 42) according to the type of ureteroscope used. The mean age of the patients was 23.5 ± 10.7 months in the m-URS group and 20.6 ± 7.1 months in the URS group (P = 0.212). T...
Source: Urolithiasis - April 4, 2023 Category: Urology & Nephrology Source Type: research
Is supine position safe and effective for the percutaneous nephrolithotomy? Clinical experiences, tip and tricks in learning curve and PSAA technique
Discussion: In previous studies, the supine technique was evaluated in terms of many factors. Process steps were tried to be standardized and i mprovements were made in the access technique. The supine technique, which uses patient-specific access angle, has similar complication rates as the prone technique. However, the operation and fluoroscopy times are shorter than the prone technique. For surgeons on the learning curve, the supine tech nique is safe, feasible, and has even shorter operating times with a patient-specific access angle. (Source: Urolithiasis)
Source: Urolithiasis - March 30, 2023 Category: Urology & Nephrology Source Type: research
Correction to: Predicting failed access in unstented ureteroscopy
(Source: Urolithiasis)
Source: Urolithiasis - March 30, 2023 Category: Urology & Nephrology Source Type: research
Is supine position safe and effective for the percutaneous nephrolithotomy? Clinical experiences, tip and tricks in learning curve and PSAA technique
Discussion: In previous studies, the supine technique was evaluated in terms of many factors. Process steps were tried to be standardized and i mprovements were made in the access technique. The supine technique, which uses patient-specific access angle, has similar complication rates as the prone technique. However, the operation and fluoroscopy times are shorter than the prone technique. For surgeons on the learning curve, the supine tech nique is safe, feasible, and has even shorter operating times with a patient-specific access angle. (Source: Urolithiasis)
Source: Urolithiasis - March 30, 2023 Category: Urology & Nephrology Source Type: research
Correction to: Predicting failed access in unstented ureteroscopy
(Source: Urolithiasis)
Source: Urolithiasis - March 30, 2023 Category: Urology & Nephrology Source Type: research
Evaluating the American Urologic Association (AUA) dietary recommendations for kidney stone management using the National Health And Nutritional Examination Survey (NHANES)
The objective of this study is to evaluate the conventional dietary recommendations for stone prevention among patients in the National Health and Nutritional Examination Survey (NHANES) and compare dietary components and special diets between stone formers and non-stone formers. We analyzed the NHANES 2011 –2018 dietary and kidney condition questionnaires, among 16,939 respondents who were included in this analysis. Dietary variables were selected based on the American Urological Association (AUA) guideline for Medical Management of Kidney Stones and from other studies on kidney stone prevention. We ighted multivariate ...
Source: Urolithiasis - March 28, 2023 Category: Urology & Nephrology Source Type: research
Micronutrient inadequacy and urinary stone disease: an analysis of the National Health and Nutrition Examination Survey 2007 –2018
AbstractUrinary stone disease is common and affects approximately 10% of the American adults. The role of diet in stone formation is well-recognized; however, the literature focus has been on dietary excess rather than micronutrient inadequacy. As patients with stones may be at risk for nutrient inadequacies, we investigated the role of micronutrient inadequacy in stone formation by performing a cross-sectional analysis of the National Health and Nutrition Examination Survey on adults who were not taking dietary supplements. Micronutrient intake was obtained from 24-h dietary recalls, and usual intake was calculated. Surve...
Source: Urolithiasis - March 28, 2023 Category: Urology & Nephrology Source Type: research
Evaluating the American Urologic Association (AUA) dietary recommendations for kidney stone management using the National Health And Nutritional Examination Survey (NHANES)
The objective of this study is to evaluate the conventional dietary recommendations for stone prevention among patients in the National Health and Nutritional Examination Survey (NHANES) and compare dietary components and special diets between stone formers and non-stone formers. We analyzed the NHANES 2011 –2018 dietary and kidney condition questionnaires, among 16,939 respondents who were included in this analysis. Dietary variables were selected based on the American Urological Association (AUA) guideline for Medical Management of Kidney Stones and from other studies on kidney stone prevention. We ighted multivariate ...
Source: Urolithiasis - March 28, 2023 Category: Urology & Nephrology Source Type: research
