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Related Concept Videos

Urinary Bladder01:23

Urinary Bladder

The urinary bladder is a hollow, muscular sac that temporarily stores urine before it is expelled from the body. It can hold approximately 600 mL of urine prior to micturition. The bladder is retroperitoneal and located behind the pubic symphysis in the pelvic floor.
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
Urodynamic Studies: Uroflowmetry01:19

Urodynamic Studies: Uroflowmetry

Uroflowmetry is a non-invasive urodynamic test designed to measure various aspects of urination, including volume, flow rate, and the time to void. This test is crucial for diagnosing and assessing conditions such as bladder outlet obstruction, bladder dysfunction, incomplete bladder emptying, incontinence, and urinary tract blockages caused by benign prostatic hyperplasia (BPH) and urethral strictures.Pre-Test Instructions:Before a uroflowmetry test, patients are typically advised to drink...
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...
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...
Anatomy of the Genitourinary System II: Bladder and Urethra01:19

Anatomy of the Genitourinary System II: Bladder and Urethra

The lower urinary system consists of the urinary bladder and urethra, which are essential in storing and expelling urine from the body. Together with the internal and external sphincters, these structures work together to regulate urination effectively.Anatomy of the BladderThe urinary bladder is a muscular, stretchable organ behind the pubic bone and in front of the rectum. In females, the bladder is positioned anterior to the vagina and inferior to the uterus, while in males, it is located...
Urinary Tract Calculi V: Nursing Management01:28

Urinary Tract Calculi V: Nursing Management

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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Related Experiment Video

Updated: May 25, 2026

Magnetic Resonance Imaging Assessment of Carcinogen-induced Murine Bladder Tumors
05:19

Magnetic Resonance Imaging Assessment of Carcinogen-induced Murine Bladder Tumors

Published on: March 29, 2019

Does bladder wall thickness decrease when obstruction is resolved?

Annette Kuhn1, Sonja Brandner, Peter Kuhn

  • 1Urogynaecology, Department of Gynaecology, University Hospital and University of Bern, Effingerstrasse 102, CH 3010 Bern, Switzerland. annette.kuhn@insel.ch

International Urogynecology Journal
|January 18, 2012
PubMed
Summary
This summary is machine-generated.

Bladder wall thickness significantly decreases after resolving symptomatic obstruction in women post-stress incontinence surgery. Preoperative residual urine may predict persistent obstruction, guiding treatment decisions.

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Area of Science:

  • Urology
  • Gynecology
  • Diagnostic Imaging

Background:

  • Urinary stress incontinence surgery can lead to symptomatic bladder outlet obstruction.
  • Bladder wall thickness (BWT) is a potential sonographic marker for bladder outlet obstruction.

Purpose of the Study:

  • To investigate if sonographic bladder wall thickness (BWT) decreases after successful resolution of symptomatic bladder outlet obstruction in female patients following anti-incontinence surgery.

Main Methods:

  • A cohort of 62 female patients with symptomatic bladder outlet obstruction post-urinary stress incontinence surgery were assessed.
  • Vaginal sonographic assessment of BWT was performed before and after urethrolysis.
  • Urodynamic assessment and analysis of preoperative residual urine were conducted.

Main Results:

  • Postoperatively, BWT significantly decreased from 9.1 mm to 7.6 mm (p < 0.0001).
  • Seven patients (11%) had unresolved obstruction post-surgery.
  • Preoperative residual urine showed a significant positive association with persistent obstruction (AUC 0.76, p < 0.05).

Conclusions:

  • Successful resolution of bladder outlet obstruction leads to a significant decrease in sonographic BWT.
  • Elevated preoperative residual urine is a risk factor for persistent obstruction after urethrolysis.