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Related Concept Videos

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 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 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,...
Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
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...
Esophageal Strictures-I: Introduction01:30

Esophageal Strictures-I: Introduction

Esophageal strictures involve abnormal narrowing or tightening of the esophagus. They vary in length and severity, ranging from mild constriction to complete obstruction, and are classified as benign (noncancerous) or malignant (cancerous).
Etiology
The primary cause of esophageal strictures is long-standing gastroesophageal reflux disease (GERD), accounting for about 70 to 80% of adult cases. Chronic acid reflux can lead to injury and scarring of the esophageal lining, culminating in...

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Related Experiment Video

Updated: May 11, 2026

A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis
04:30

A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis

Published on: May 14, 2013

Stents and stone disease.

A van der Merwe1, H Van Heerden, G Bonkat

  • 1Department Urology, Stellenbosch University Cape Town, South Africa. arvdm@sun.ac.za

Minerva Urologica E Nefrologica = the Italian Journal of Urology and Nephrology
|May 25, 2013
PubMed
Summary
This summary is machine-generated.

Renal stents can relieve pressure in obstructed urinary systems but may cause side effects like pain and "forgotten stents." This review covers key considerations for using stents in renal stone disease management.

Related Experiment Videos

Last Updated: May 11, 2026

A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis
04:30

A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis

Published on: May 14, 2013

Area of Science:

  • Urology
  • Nephrology
  • Medical Device Technology

Background:

  • Renal stents are increasingly used in managing renal stone disease.
  • Their primary benefit is reducing pressure within the renal collecting system, especially during infection, obstruction, or post-surgery.
  • However, stent material can cause significant patient morbidity.

Purpose of the Study:

  • To review the critical aspects of utilizing stents in the context of renal stone disease.
  • To highlight both the advantages and disadvantages of renal stent placement.

Main Methods:

  • This is a review article.
  • It synthesizes existing literature and clinical experience regarding renal stents in stone disease.

Main Results:

  • Stents effectively reduce renal collecting system pressure, alleviating pain in obstructed cases.
  • Potential complications include urothelial irritation, symptoms, perforations, and the issue of retained (forgotten) stents.
  • Careful consideration of stent material and duration is crucial.

Conclusions:

  • While beneficial for pressure relief, renal stents introduce potential complications that necessitate careful management.
  • Optimizing stent use in renal stone disease requires balancing benefits against risks of morbidity.
  • Further research into improved stent materials and protocols may mitigate adverse events.