Ureteropelvic junction obstruction

John S Lam1, Alberto Breda, Peter G Schulam

  • 1Department of Urology, David Geffen School of Medicine at University of California-Los Angeles, Los Angeles, California 90095-1738, USA. jlam@mednet.ucla.edu

The Journal of Urology
|April 18, 2007
PubMed

Insights

Ureteropelvic junction obstruction (UPJO) burden in the US shows decreasing hospitalizations in children, with a trend towards conservative management. Healthcare resource use and economic impact were analyzed.

Area of Science:

  • Urology
  • Health Economics
  • Pediatric Surgery

Background:

  • Ureteropelvic junction obstruction (UPJO) is a common congenital anomaly.
  • Understanding UPJO's impact on healthcare resources is crucial for resource allocation and policy development.

Purpose of the Study:

  • To quantify the burden of ureteropelvic junction obstruction (UPJO) in the United States.
  • To identify trends in healthcare resource utilization for UPJO.
  • To estimate the economic impact of UPJO.

Main Methods:

  • Analysis of inpatient hospitalization data and physician office visits.
  • Focus on trends from 1994 to 2003.
  • Calculation of hospitalization rates, length of stay, and costs.

Main Results:

  • Inpatient hospitalization rates for UPJO decreased from 1.1 to 0.8 per 100,000 between 1994 and 2000, primarily affecting children under 3 years.
  • Physician office visits for Medicare beneficiaries remained stable.
  • Average inpatient length of stay and cost per child were 2.9 days and $7,728 respectively (1999-2003), with total inpatient spending around $12 million annually.

Conclusions:

  • Most ureteropelvic junction obstructions are diagnosed perinatally.
  • Surgical intervention for pediatric UPJO has declined, with a rise in conservative management.
  • UPJO management trends indicate a shift towards less invasive approaches in pediatric cases.
Abstract

Related Concept Videos

Ureters01:22

Ureters

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...
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...
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...
Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

Imaging Studies VI: Voiding Cystourethrography and Cystography

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...
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...
Anatomy of the Genitourinary System I: Kidneys and Ureters01:11

Anatomy of the Genitourinary System I: Kidneys and Ureters

The upper urinary system comprises two kidneys and two ureters, which are crucial in filtering blood and forming urine.KidneysLocation and Structure:The kidneys are two bean-shaped organs positioned behind the peritoneum on either side of the spine.Kidneys are between the 12th thoracic (T12) and the 3rd lumbar (L3) vertebrae.The position of the liver causes the right kidney to sit slightly lower than the left.Protective Layers:Each kidney is enveloped in a tough, fibrous membrane called the...