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Related Concept Videos

Urinary Tract Calculi VI: Surgical Management01:25

Urinary Tract Calculi VI: Surgical Management

55
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

Imaging Studies V: Intravenous Urography and Retrograde Pyelography

189
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...
189
Urinary Tract Calculi III: Medical Management01:30

Urinary Tract Calculi III: Medical Management

35
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)...
35

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Related Experiment Video

Updated: Sep 20, 2025

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Advances in ureteral stent technology.

Michael Mawhorter1, Necole M Streeper

  • 1Department of Urology, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA.

Current Opinion in Urology
|June 8, 2022
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Summary
This summary is machine-generated.

New ureteral stent technologies aim to reduce patient discomfort and complications. Advances in materials and design, alongside innovative removal techniques, promise improved outcomes and reduced costs for ureteral stent use.

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Area of Science:

  • Urology
  • Biomaterials Science
  • Medical Device Innovation

Background:

  • Ureteral stents are essential in urological procedures.
  • Current stents present challenges like encrustation, patient discomfort, infection, and removal difficulties.

Purpose of the Study:

  • To review recent advancements in ureteral stent technology.
  • To highlight innovations addressing stent-related drawbacks.

Main Methods:

  • Review of clinical trials and preclinical studies from the past two years.
  • Analysis of innovations in stent materials, design, and removal techniques.

Main Results:

  • Promising developments in stent materials and design enhance patient tolerability without increasing complications.
  • Low-tech innovations like magnetic and catheter snare removal offer cost reduction.
  • Biodegradable stent materials show potential for eliminating the need for removal.

Conclusions:

  • The ideal ureteral stent remains an ongoing development.
  • Recent technological advances show significant promise in mitigating ureteral stent associated morbidity and improving patient care.