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Related Concept Videos

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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Imaging Studies V: Intravenous Urography and Retrograde Pyelography01:22

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IntroductionIntravenous Urography (IVU) and Retrograde Pyelography (RP) are important diagnostic imaging techniques used to evaluate the urinary system. These methods help identify structural abnormalities, obstructions, and functional issues in the kidneys, ureters, and bladder. Both procedures use iodine-based contrast media to enhance the visibility of urinary tract structures on X-ray images, though they differ in their methods and indications.1. Intravenous Urography (IVU)Intravenous...
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Urinary Tract Calculi III: Medical Management01:30

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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

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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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Advances in ureteral stent development.

Ben H Chew1, Dirk Lange

  • 1Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada.

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Researchers reviewed ureteral stent advancements over two years. New technologies aim to improve patient comfort and treatment outcomes for ureteral conditions, showing promising progress.

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Area of Science:

  • Urology
  • Biomedical Engineering
  • Medical Device Development

Background:

  • Ureteral stents are essential in urological procedures.
  • The development of an ideal ureteral stent remains an ongoing challenge.
  • Patient symptoms and complications associated with ureteral stents necessitate innovation.

Purpose of the Study:

  • To document recent advancements in ureteral stent technologies and strategies.
  • To identify emerging trends and potential future developments in ureteral stenting.
  • To synthesize findings from the latest research in ureteral stent design and application.

Main Methods:

  • Review of publications from 2014-2015.
  • PubMed search using keywords 'ureter' and 'stent'.
  • Analysis of studies focusing on stent-related patient symptoms, removal techniques, and novel stent designs.

Main Results:

  • Stent extraction strings do not increase infection or pain.
  • Antirefluxing ureteral stents show potential in reducing vesicoureteral reflux and kidney infections.
  • Novel removal methods include biodegradable stents and magnetic retrieval.
  • New metal and mesh stents are available for malignant ureteral obstruction.
  • Antimicrobial peptide coatings offer new possibilities for stent surfaces.

Conclusions:

  • Significant progress has been made in ureteral stent technology over the past two years.
  • The pursuit of the perfect ureteral stent continues with promising developments.
  • Future innovations are expected to further enhance patient care and treatment efficacy.