Classification of Stones According to Michel Daudon: A Narrative Review

Corrales, Mariela; Doizi, Steeve; Barghouthy, Yazeed; Traxer, Olivier; Daudon, Michel

doi:10.1016/j.euf.2020.11.004

Cited by 46 publications

(53 citation statements)

References 16 publications

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“…In certain urinary stones, high urine calcium levels constitute the main risk factor for stone formation. These include mainly calcium oxalate dehydrated stones-Class II, according to the Daudon's classification [33] and also calcium phosphate stones. Citrate plays a crucial role in lowering urine calcium levels by sequestration of Ca +2 ions through the formation of citrate-calcium complexes, which are more soluble in the urine at physiological urine pH levels [34].…”

Section: Role Of Citrus Juices Mechanism Of Action and Comparison Between Studiesmentioning

confidence: 99%

“…These situations are variable and include high consumption of animal protein, chronic diarrhea, or laxative abuse, that contribute to gastrointestinal alkali loss and metabolic syndrome including obesity and diabetes mellitus [37]. Acidic urine pH, in turn, favors the formation of the relatively insoluble urate crystals in urine [33]. The alkalinizing effects of citrate on the urine thus plays a fundamental role in protection against uric acid stone formation.…”

Section: Role Of Citrus Juices Mechanism Of Action and Comparison Between Studiesmentioning

confidence: 99%

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Role of Citrus Fruit Juices in Prevention of Kidney Stone Disease (KSD): A Narrative Review

Barghouthy

Somani

2021

Nutrients

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To explore the relationship between citrus fruit juices (oranges, grapefruits, and lemonades) and kidney stone disease (KSD). Methods: A systematic review was performed using the Medline, EMBASE, and Scopus databases, in concordance with the PRISMA checklist for all English, French, and Spanish language studies regarding the consumption of citrus fruit juices and the relationship to urinary stone disease. The main outcome of interest was the association of citrus fruit juices with KSD. Results: Thirteen articles met the criteria for inclusion in the final review. Three large epidemiological studies found that grapefruit juice was a risk factor for stone formation, while orange juice did not increase the risk for KSD. Ten small prospective clinical studies found that orange, grapefruit, and lemon juices all increased urinary citrate levels. Only orange and grapefruit juices had an alkalinizing effect and while lemon juice has a protective effect by raising urinary citrate levels, it lacked a significant alkalinizing effect on urine pH. Orange juice and grapefruit juices significantly increased urinary oxalate levels, while orange juice also had a high carbohydrate content. Conclusion: While orange juice seems to play a protective role against stone formation, grapefruit was found to raise the risk of KSD in epidemiological studies but had a protective role in smaller clinical studies. Lemon juice had a smaller protective role than orange juice. Larger amounts of, as well as more accurate, data is needed before recommendations can be made and a high carbohydrate content in these juices needs to be taken into consideration.

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Section: Role Of Citrus Juices Mechanism Of Action and Comparison Between Studiesmentioning

confidence: 99%

Section: Role Of Citrus Juices Mechanism Of Action and Comparison Between Studiesmentioning

confidence: 99%

Role of Citrus Fruit Juices in Prevention of Kidney Stone Disease (KSD): A Narrative Review

Barghouthy

Somani

2021

Nutrients

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“…Each group is itself divided into several subgroups to differentiate morphologies and aetiologies for a given crystalline type (the subgroup names are designated by letters which complete the roman numbers). The most recent lithogenic events (i.e., cristal type) are located on the surface of the kidney stone, whereas less recent events are observable on the section of the kidney stone Corrales et al (2021).…”

Section: Introductionmentioning

confidence: 99%

On the in vivo recognition of kidney stones using machine learning

Ochoa-Ruiz¹,

Estrade²,

López³

et al. 2022

Preprint

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Determining the type of kidney stones allows urologists to prescribe a treatment to avoid recurrence of renal lithiasis. An automated in-vivo image-based classification method would be an important step towards an immediate identification of the kidney stone type required as a first phase of the diagnosis. In the literature it was shown on ex-vivo data (i.e., in very controlled scene and image acquisition conditions) that an automated kidney stone classification is indeed feasible. This pilot study compares the kidney stone recognition performances of six shallow machine learning methods and three deep-learning architectures which were tested with in-vivo images of the four most frequent urinary calculi types acquired with an endoscope during standard ureteroscopies. This contribution details the database construction and the design of the tested kidney stones classifiers. Even if the best results were obtained by the Inception v3 architecture (weighted precision, recall and F1-score of 0.97, 0.98 and 0.97, respectively), it is also shown that choosing an appropriate colour space and texture features allows a shallow machine learning method to approach closely the performances of the most promising deep-learning methods (the XGBoost classifier led to weighted precision, recall and F1-score values of 0.96). This paper is the first one that explores the most discriminant features to be extracted from images acquired during ureteroscopies.

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“…We have shown for example that chronic pancreatitis may frequently be diagnosed only after oxalate nephropathy, even in kidney transplant recipients (40)(41)64). Morpho-constitutional analysis of kidney stones combining stereomicroscopy and Fourier-transform infrared spectroscopy may help in determining the cause of hyperoxaluria (65). Dietary hyperoxaluria may be difficult to identify because oxalate content is not provided by food manufacturers and food tables often report conflicting data on oxalate content (60).…”

Section: Management Of Secondary Hyperoxaluria and Oxalate Nephropathymentioning

confidence: 99%

Pathophysiology and Management of Hyperoxaluria and Oxalate Nephropathy: A Review

Demoulin

Aydın

Gillion

et al. 2022

American Journal of Kidney Diseases

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Classification of Stones According to Michel Daudon: A Narrative Review

Cited by 46 publications

References 16 publications

Role of Citrus Fruit Juices in Prevention of Kidney Stone Disease (KSD): A Narrative Review

Role of Citrus Fruit Juices in Prevention of Kidney Stone Disease (KSD): A Narrative Review

On the in vivo recognition of kidney stones using machine learning

Pathophysiology and Management of Hyperoxaluria and Oxalate Nephropathy: A Review

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