Does the renal parenchymal thickness affect the efficacy of the retrograde intrarenal surgery? A prospective cohort study

Koç, Erdem; Kamaci, D.; Gök, Bahri; Bedir, Fevzi; Metin, Baki Can; Atmaca, Ali Fuat

doi:10.1007/s00240-020-01185-8

Cited by 7 publications

(2 citation statements)

References 22 publications

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“…Low‐dose NCCT is the most sensitive imaging method to diagnose the urinary calculi, with decreased radiation exposure [ 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. It allows accurate determination of stone size and volume, stone multiplicity, stone density and state of the renal parenchyma since other means of radiological evaluation (KUB and sonography) fail to give adequate information on these variables.…”

Section: Guidelinementioning

confidence: 99%

International Alliance of Urolithiasis guideline on retrograde intrarenal surgery

et al. 2022

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To set out the second in a series of guidelines on the treatment of urolithiasis by the International Alliance of Urolithiasis that concerns retrograde intrarenal surgery (RIRS), with the aim of providing a clinical framework for urologists performing RIRS. Materials and MethodsAfter a comprehensive search of RIRS-related literature published between 1 January 1964 and 1 October 2021 from the PubMed database, systematic review and assessment were performed to inform a series of recommendations, which were graded using modified GRADE methodology. Additionally, quality of evidence was classified using a modification of the Oxford Centre for Evidence-Based Medicine Levels of Evidence system. Finally, related comments were provided. ResultsA total of 36 recommendations were developed and graded that covered the following topics: indications and contraindications; preoperative imaging; preoperative ureteric stenting; preoperative medications; peri-operative antibiotics; management of antithrombotic therapy; anaesthesia; patient positioning; equipment; lithotripsy; exit strategy; and complications. ConclusionThe series of recommendations regarding RIRS, along with the related commentary and supporting documentation, offered here should help provide safe and effective performance of RIRS.

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Section: Guidelinementioning

confidence: 99%

International Alliance of Urolithiasis guideline on retrograde intrarenal surgery

et al. 2022

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“…To the best of our knowledge, this is the only study conducted for this purpose in the literature. However, in this study, only RPT, which is a one-dimensional measurement, was evaluated (6). The aim of our study is to examine the effect of RPV and TRV, that we think to be associated with diuresis, therefore might better indicate the number of nephrons in the kidney, on RIRS success.…”

Section: Introductionmentioning

confidence: 99%

Effects of renal parenchymal volume and total renal volume on success in retrograde intrarenal surgery

et al. 2022

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Objective: Renal parenchymal volume known as an indicator of the number of nephrons in the kidney. We predict that the increase in renal parenchyma volume will increase diuresis and facilitate the excretion of fragments after RIRS procedure. Therefore, increased renal parenchymal volume might be suggested as a factor affecting the success of RIRS procedure.Material and Methods: Out of 238 patients who underwent RIRS in our clinic, 104 patients who underwent primary RIRS due to single kidney stone and who underwent contrast-enhanced computed tomoghraphy were included in the study. The demographic, clinical and radiological (renal parenchymal volume and total renal volume) datas of all patients included were evaluated. Patients were divided into 2 groups according to the success status after RIRS, as successful and unsuccessful groups.Results: There was no significant difference in total renal volume between the two groups (213.3±54.9 cm3 in the successful group, 204.4±65.7 cm3 in the unsuccessful group, p=0.521). While the mean renal parenchymal volume in the successful group was 168.3±46.1 cm3 , it was 125.5±29.9 cm3 in the unsuccessful group, and the difference was statistically significant (p<0.001). In the ROC analysis, the cut-off value for renal parenchymal volume predicting the presence of residual stones after RIRS was found to be ≤141.3 cm3. According to multivariate logistic regression analysis, elevated stone burden (OR=1.02; 95% Cl=1.009-1.03; p<0.001), localized stones in the lower pole (OR=31.673; 95% Cl=3.315-302.623; p=0.003 ) and RPV≤141.3 cm3 (OR=5.923; 95% Cl=2.886-19.263; p=0.008) were found to be independent risk factors for success of RIRS procedure.Conclusion: Renal parenchymal volume is a practical and cost-effective parameter that can be used to predict success rates in patients undergoing RIRS for kidney stones.

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Can additional variables be used to predict stone-free rates following retrograde intrarenal surgery? Anticoagulants and parenchyma thickness: a detailed examination

et al. 2023

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Does the renal parenchymal thickness affect the efficacy of the retrograde intrarenal surgery? A prospective cohort study

Cited by 7 publications

References 22 publications

International Alliance of Urolithiasis guideline on retrograde intrarenal surgery

International Alliance of Urolithiasis guideline on retrograde intrarenal surgery

Effects of renal parenchymal volume and total renal volume on success in retrograde intrarenal surgery

Can additional variables be used to predict stone-free rates following retrograde intrarenal surgery? Anticoagulants and parenchyma thickness: a detailed examination

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