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Related Concept Videos

Ureters01:22

Ureters

385
The ureters are retroperitoneal tubes located on either side of the vertebral column. They are responsible for transporting urine from each kidney to the urinary bladder. These tubes have thick walls and are approximately 25-30 cm long. Their diameter is around 10 mm at the renal pelvis, gradually narrowing to 1 mm as the ureter obliquely enters the posterior bladder wall through the ureteric orifices. The shape of these orifices is slit-like, which helps to prevent urine backflow toward the...
385
Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

1
IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
1
Kidney Transplant II: Surgical Procedure01:26

Kidney Transplant II: Surgical Procedure

2
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...
2
Imaging Studies I: Kidney, Ureter, and Bladder Studies01:28

Imaging Studies I: Kidney, Ureter, and Bladder Studies

1
Kidney, Ureter, and Bladder (KUB) StudiesKidney, Ureter, and Bladder (KUB) studies are standard diagnostic imaging procedures used to assess the anatomy of the urinary system. They are commonly utilized for patients experiencing abdominal pain or urinary symptoms. By using a simple X-ray of the abdomen, KUB studies can reveal structural and pathological abnormalities within the kidneys, ureters, and bladder. These studies are particularly valuable in diagnosing kidney stones, urinary...
1
Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

Imaging Studies VI: Voiding Cystourethrography and Cystography

1
Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
1
Urinary Tract Calculi VI: Surgical Management01:25

Urinary Tract Calculi VI: Surgical Management

2
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...
2

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Related Experiment Video

Updated: Jun 10, 2025

A Murine Model of Irreversible and Reversible Unilateral Ureteric Obstruction
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Ureter-ileum-interposition: Combined experience from two high-volume centres.

Maksym Pikul1,2, David Pfister2, Constantin Rieger2

  • 1Department of Plastic and Reconstructive Oncourology National Cancer Institute of Ukraine Kyiv Ukraine.

BJUI Compass
|October 17, 2024
PubMed
Summary

Ileal ureter interposition shows a favorable safety profile and good functional outcomes for ureter reconstruction. This technique offers an effective tension-free bypass, regardless of healthy ureter length, with manageable complication rates.

Keywords:
complex kidney tumoursindications to partial nephrectomynephrometryorgan‐sparing managementrenal‐cell carcinoma

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Area of Science:

  • Urology
  • Surgical Oncology
  • Nephrology

Background:

  • Ileal ureter interposition is a reconstructive surgical technique used in urology.
  • Evaluating its safety and efficacy is crucial for patient outcomes.

Purpose of the Study:

  • To assess short- and long-term complication rates.
  • To evaluate functional outcomes after ileal ureter interposition.
  • To analyze data from a substantial patient cohort at high-volume centers.

Main Methods:

  • Retrospective single-arm analysis of 107 patients (2003-2022).
  • Data collected on etiology, surgical techniques, kidney function (eGFR), readmissions, and complications (Clavien-Dindo classification).
  • Kidney function assessed using CKD-EPI formula.

Main Results:

  • 53% of patients experienced complications within 90 days (mostly Grade I-II).
  • 15% developed anastomosis stricture; 28% had significant vesico-renal reflux.
  • Improved renal function observed in 52% of patients post-surgery, with a 90-day mortality rate of 1.8%.

Conclusions:

  • Ileal ureter interposition demonstrates a favorable safety profile.
  • The procedure yields positive functional outcomes for patients.
  • It serves as an effective tension-free ureteral bypass option.