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Related Concept Videos

Urinary Tract Calculi III: Medical Management01:30

Urinary Tract Calculi III: Medical Management

The diagnosis of renal calculi involves several imaging techniques, including non-contrast CT scans and ultrasound. These methods help visualize kidney stones, assess their size and location, and detect possible obstructions. Additionally, Measuring urine pH is useful for diagnosing specific stone types, such as struvite (alkaline pH) and uric acid stones (acidic pH). Cystine stones are primarily linked to cystinuria, a genetic condition. A urinalysis helps detect blood in the urine (hematuria)...
Urinary Tract Calculi VI: Surgical Management01:25

Urinary Tract Calculi VI: Surgical Management

Procedures for Kidney StonesMedical intervention is necessary when kidney stones or renal calculi are too large to pass spontaneously (typically greater than 5 millimeters) when stones are accompanied by symptomatic infection (such as fever or pyelonephritis), when they impair kidney function, or when they cause persistent symptoms like severe pain, nausea, or urinary retention. Additionally, patients with only one kidney or those who cannot be treated with medical management also require...
Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations01:26

Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations

Renal calculi, commonly termed kidney stones, are crystalline solid masses that form in the kidneys but can occur at any point within the urinary system, encompassing the kidneys, ureters, bladder, and urethra.The pathophysiology of renal stones involves several key factors: supersaturation of the urine with stone-forming constituents, changes in urine pH, a decrease in urine volume, and the presence of substances that promote or inhibit stone formation.Supersaturation of Urine: This is the...
Urinary Tract Calculi V: Nursing Management01:28

Urinary Tract Calculi V: Nursing Management

AssessmentSubjective Data: Obtain a detailed health history, including any recent or chronic urinary tract infections, periods of immobilization, previous episodes of renal calculi, and medical conditions such as gout, benign prostatic hyperplasia, or hyperparathyroidism. Review the medication history for drugs that may influence stone formation, including allopurinol, analgesics, loop diuretics, or thiazide diuretics. Document the use of long-term indwelling catheters and any past surgical...
Urinary Tract Calculi I: Introduction01:28

Urinary Tract Calculi I: Introduction

Renal calculi, or kidney stones, are solid deposits of minerals and salts formed inside the kidneys. In medical terminology, "calculus" refers to the stone itself, while "lithiasis" describes the process of stone formation. Depending on their location within the urinary system, these stones may be classified as either urolithiasis, when situated within the urinary tract, or nephrolithiasis, when located within the kidneys. Each term signifies the specific impact of the stone.Predisposition...
Urinary Tract Calculi IV: Nutrition Therapy and Prevention01:27

Urinary Tract Calculi IV: Nutrition Therapy and Prevention

Management of renal calculi focuses on effective strategies like tailored nutrition and hydration therapy. Adjusting diet and fluid intake reduces stone formation and recurrence, making these interventions simple yet powerful in kidney stone prevention and management.Understanding Kidney StonesKidney stones form when calcium, oxalate, uric acid, and cystine concentrate and crystallize in urine. Factors contributing to their formation include genetic predisposition, certain medical conditions,...

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Updated: Jun 4, 2026

Estimation of Urinary Nanocrystals in Humans using Calcium Fluorophore Labeling and Nanoparticle Tracking Analysis
07:45

Estimation of Urinary Nanocrystals in Humans using Calcium Fluorophore Labeling and Nanoparticle Tracking Analysis

Published on: February 9, 2021

[Multiple sclerosis and urolithiasis].

L Rached1, B Lacour, M Daudon

  • 1Service de Biochimie A, Hôpital Necker-Enfants-Malades, AP-HP, 149, rue de Sèvres, 754743 Paris cedex 15, France.

Progres En Urologie : Journal De L'Association Francaise D'Urologie Et De La Societe Francaise D'Urologie
|February 8, 2011
PubMed
Summary
This summary is machine-generated.

Urinary stones in multiple sclerosis patients are primarily phosphatic, often linked to urinary tract infections (UTIs) especially in women. Metabolic factors like hypercalciuria also contribute, particularly in men.

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Estimation of Urinary Nanocrystals in Humans using Calcium Fluorophore Labeling and Nanoparticle Tracking Analysis
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Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla
08:51

Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla

Published on: February 19, 2021

Area of Science:

  • Nephrology
  • Urology
  • Neurology

Context:

  • Multiple sclerosis (MS) patients frequently develop secondary urolithiasis.
  • Urinary tract dysfunction is common in MS, increasing infection risk.
  • Understanding stone composition and formation is crucial for MS patient management.

Purpose:

  • To investigate the composition of urinary stones in MS patients.
  • To identify the primary lithogenic processes contributing to stone formation in this population.

Summary:

  • A retrospective analysis of 60 urinary stones from 49 MS patients revealed a predominance of phosphatic stones.
  • Struvite stones were highly prevalent (65% in women, 45% in men), indicating urinary tract infections (UTIs) with urea-splitting bacteria as the main cause.
  • Metabolic factors, particularly hypercalciuria, were implicated in the formation of weddellite and brushite stones, especially in men.

Impact:

  • Findings highlight UTIs as the leading cause of urolithiasis in MS, particularly in women, emphasizing the need for proactive UTI prevention and management.
  • Early detection and treatment of UTIs can mitigate risks of pyelonephritis and infectious kidney stones in MS patients.
  • Addressing metabolic factors like hypercalciuria is also important for comprehensive stone prevention strategies in this cohort.