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Related Concept Videos

Urinary Tract Calculi III: Medical Management01:30

Urinary Tract Calculi III: Medical Management

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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)...
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Urinary Tract Calculi V: Nursing Management01:28

Urinary Tract Calculi V: Nursing Management

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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...
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Urinary Tract Calculi IV: Nutrition Therapy and Prevention01:27

Urinary Tract Calculi IV: Nutrition Therapy and Prevention

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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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Urinary Tract Calculi VI: Surgical Management01:25

Urinary Tract Calculi VI: Surgical Management

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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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Urinary Tract Calculi I: Introduction01:28

Urinary Tract Calculi I: Introduction

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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...
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Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations01:26

Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations

860
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...
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Managing caliceal stones.

Andreas J Gross1, Sophie Knipper1, Christopher Netsch1

  • 1Department of Urology, Asklepios Hospital Barmbek, 22291 Hamburg, Germany.

Indian Journal of Urology : IJU : Journal of the Urological Society of India
|February 6, 2014
PubMed
Summary
This summary is machine-generated.

The natural course of asymptomatic caliceal stones is unclear. Treatment decisions for kidney stones depend on size, composition, and symptoms, with extracorporeal shock-wave lithotripsy (ESWL) and minimally-invasive procedures offering varying stone-free rates.

Keywords:
Caliceal stonesextracorporeal shock-wave lithotripsypercutaneous nephrolithotomyureteroscopy

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Area of Science:

  • Nephrology
  • Urology

Background:

  • The natural history and progression of untreated asymptomatic caliceal calculi remain poorly understood.
  • Indications for surgical intervention and associated outcomes for caliceal stones are not precisely defined.
  • Caliceal stones can remain asymptomatic but may cause complications if they migrate to the ureter.

Purpose of the Study:

  • To clarify the natural course of untreated asymptomatic caliceal calculi.
  • To define precise indications for surgical intervention and expected outcomes.
  • To compare the efficacy of different treatment modalities for caliceal stones.

Main Methods:

  • Review of the natural course of untreated asymptomatic caliceal calculi.
  • Analysis of factors influencing treatment decisions (stone composition, size, symptoms).
  • Evaluation of extracorporeal shock-wave lithotripsy (ESWL) and minimally-invasive procedures (percutaneous nephrolithotomy, ureteroscopy).

Main Results:

  • Extracorporeal shock-wave lithotripsy (ESWL) is a first-line therapy for stones <2 cm but does not guarantee immediate stone removal.
  • Primary stone-free rates (SFR) after ESWL vary based on stone location (especially lower pole) and composition.
  • Minimally-invasive procedures offer high primary SFR and low morbidity when performed in specialized centers.

Conclusions:

  • Treatment decisions for caliceal stones require careful consideration of stone characteristics and patient symptoms.
  • ESWL is a guideline-recommended first-line treatment, but its effectiveness varies.
  • Minimally-invasive techniques provide effective alternatives with high stone-free rates for complex caliceal calculi.