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Related Concept Videos

Urinary Tract Calculi VI: Surgical Management01:25

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...
Urologic Endoscopic Procedure: Cystoscopic Examination01:28

Urologic Endoscopic Procedure: Cystoscopic Examination

Meaning of Cystoscopic Examination:Cystoscopy is an essential diagnostic tool in urology that is used to assess the structure and function of the genitourinary system. It provides a direct view of the urethra, bladder, and, in some cases, the ureteral openings. This procedure helps detect structural abnormalities, infections, cancers, and blockages in the urinary tract. There are two types of cystoscopy:Flexible cystoscopy is commonly performed in outpatient settings due to its less invasive...
Imaging Studies V: Intravenous Urography and Retrograde Pyelography01:22

Imaging Studies V: Intravenous Urography and Retrograde Pyelography

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...
Kidney Transplant II: Surgical Procedure01:26

Kidney Transplant II: Surgical Procedure

Preoperative ManagementThe primary goals of preoperative management in kidney transplantation are to optimize the patient’s metabolic state and prepare them for surgery through diet adjustments, necessary dialysis, and tailored medical treatment. This phase also involves comprehensive infection screening and patient education about the surgical procedure and postoperative care to improve outcomes and adherence.Medical ManagementA comprehensive evaluation is required for both the living donor...

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Related Experiment Video

Updated: May 22, 2026

A Murine Model of Irreversible and Reversible Unilateral Ureteric Obstruction
14:05

A Murine Model of Irreversible and Reversible Unilateral Ureteric Obstruction

Published on: December 20, 2014

Midureteric knotted stent removed by percutaneous access!

Parag Bhirud1, Venkatesh Giridhar, Padmaraj Hegde

  • 1Department of Urology, Kasturba Medical College, Manipal, Karnataka, India.

Urology Annals
|May 26, 2012
PubMed
Summary

A rare complication of ureteric stents is knotting, which can endanger the kidney. This case highlights successful percutaneous extraction of a knotted ureteric stent after other methods failed.

Keywords:
Complicationsknotted stentpercutaneous access

Related Experiment Videos

Last Updated: May 22, 2026

A Murine Model of Irreversible and Reversible Unilateral Ureteric Obstruction
14:05

A Murine Model of Irreversible and Reversible Unilateral Ureteric Obstruction

Published on: December 20, 2014

Area of Science:

  • Urology
  • Nephrology
  • Surgical Complications

Background:

  • Indwelling ureteric stents are standard for managing upper urinary tract obstruction.
  • Stent knotting, particularly at the proximal coiled end, is a rare but serious complication.

Observation:

  • A case of a mid-ureteric knotted stent is presented, posing a significant risk to renal function.
  • Initial attempts at minimally invasive stent removal were unsuccessful.

Findings:

  • Successful extraction of the knotted ureteric stent was achieved using a percutaneous approach.
  • This demonstrates the efficacy of percutaneous intervention in complex stent retrieval cases.

Implications:

  • Highlights the potential for ureteric stent knotting as a complication.
  • Emphasizes the importance of considering percutaneous extraction for difficult stent removals.
  • Underscores the need for vigilance in managing patients with indwelling ureteric stents.