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Urinary Tract Calculi III: Medical Management

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 I: Introduction

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 Prevention

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,...

Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations

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 Management

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 VI: Surgical Management

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...

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Related Experiment Video

Updated: May 30, 2026

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

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

Published on: February 9, 2021

Calcium Oxalate Stone Agglomeration Inhibition [tm] Reflects Renal Stone-Forming Activity.

J S Lindberg, F E Cole, W Romani

Ochsner Journal

|August 4, 2011

Summary

Calcium oxalate stone formers experience high recurrence rates in the Gulf South. Inhibitors like citrate and Tamm-Horsfall protein in urine can be manipulated with medication to reduce stone formation and recurrence.

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Calcium Carbonate Formation in the Presence of Biopolymeric Additives

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Published on: May 14, 2019

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Last Updated: May 30, 2026

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

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Published on: February 9, 2021

Calcium Carbonate Formation in the Presence of Biopolymeric Additives

Calcium Carbonate Formation in the Presence of Biopolymeric Additives

Published on: May 14, 2019

Area of Science:

Nephrology
Urology
Biochemistry

Background:

The Gulf South region, known as the "Stone Belt," has a high prevalence (approx. 5%) of calcium oxalate stone formers (CaOx SFs).
Recurrent kidney stone formation causes significant pain and necessitates medical intervention.
The presence of stone inhibitors in healthy individuals' urine suggests a protective mechanism absent in stone formers.

Purpose of the Study:

To investigate the factors contributing to high calcium oxalate stone recurrence in the Gulf South.
To evaluate the role of urinary stone agglomeration inhibition in CaOx SFs.
To identify and assess the impact of urinary stone-growth inhibitors, specifically citrate and Tamm-Horsfall protein (THP), on stone recurrence.

Main Methods:

Collected 24-hour urine samples from patients at the Ochsner Renal Stone Clinic.
Performed calcium oxalate stone agglomeration inhibition [tm] measurements on urine samples.
Analyzed data from 1500 visits of 700 kidney stone patients to assess recurrence risk and inhibitor roles.

Main Results:

Urine from healthy subjects and inactive stone formers showed significantly inhibited stone growth [tm] compared to recurrent CaOx SFs.
Data from 700 patients were used to evaluate recurrence risk.
The interactive roles of citrate and Tamm-Horsfall protein (THP) in stone formation were identified.

Conclusions:

Urinary stone inhibitors, particularly citrate and THP, play a crucial role in preventing calcium oxalate stone formation.
Medical management targeting these inhibitors can potentially reduce stone recurrence.
Optimizing medication based on inhibitor levels may offer financial and pain relief for CaOx SFs.