Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Urodynamic Studies: Uroflowmetry01:19

Urodynamic Studies: Uroflowmetry

9.5K
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...
9.5K
Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

Imaging Studies VI: Voiding Cystourethrography and Cystography

4.7K
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...
4.7K
The Micturition Reflex01:26

The Micturition Reflex

4.1K
Urination, or micturition involves the coordination of the bladder's detrusor muscle and two sphincters to ensure controlled bladder emptying.
The process begins with bladder filling, where the bladder wall stretches as urine accumulates. This stretching activates the urine storage reflex, mediated by the sacral spinal segments and the pontine storage center. Efferent sympathetic impulses stimulate the detrusor muscle to relax and the internal urethral sphincter to contract, facilitating...
4.1K
Anatomy of the Genitourinary System II: Bladder and Urethra01:19

Anatomy of the Genitourinary System II: Bladder and Urethra

3.7K
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...
3.7K
Imaging Studies V: Intravenous Urography and Retrograde Pyelography01:22

Imaging Studies V: Intravenous Urography and Retrograde Pyelography

3.5K
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...
3.5K
Disorders of the Urinary System01:20

Disorders of the Urinary System

2.2K
The urinary system is responsible for eliminating waste and excess fluids from the body. However, disorders of the urinary system can arise due to various reasons like infections, stress, age, congenital abnormalities, and lifestyle.
Urinary tract infections (UTIs) are one of the most common urinary system disorders. They are caused by bacteria that enter the urethra and can spread to the bladder resulting in cystitis. Pyelonephritis is the result of a UTI that has ascended to the level of the...
2.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Systematic Review of Percutaneous and Transcutaneous Posterior Tibial Neurostimulation for Lower Urinary Tract Symptoms & Lower Urinary Tract Dysfunction in Children.

Neurourology and urodynamics·2026
Same author

A Risk Stratification Model to Predict Febrile Urinary Tract Infection After Cessation of Continuous Antibiotic Prophylaxis in Children With Known Vesicoureteral Reflux.

The Journal of urology·2025
Same author

Machine Learning Analysis of Videourodynamics to Predict Incident Hydronephrosis in Patients With Spina Bifida.

The Journal of urology·2025
Same author

Inflammatory Myofibroblastic Tumor of the Bladder in Childhood: A Three Case Series.

Urology·2025
Same author

Response to the Letter to the Editor.

Journal of pediatric urology·2024
Same author

Does socioeconomic opportunity impact distal hypospadias surgical outcomes or post-operative care?

Journal of pediatric urology·2024

Related Experiment Video

Updated: May 5, 2026

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
05:25

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing

Published on: August 14, 2019

19.7K

Analysis of uroflow patterns in children with dysfunctional voiding.

Sven Wenske1, Jason P Van Batavia1, Andrew J Combs1

  • 1Division of Pediatric Urology, Morgan Stanley Children's Hospital of New York, Department of Urology, Columbia University, College of Physicians and Surgeons, 3959 Broadway, CHN 1118, New York, NY 10032, USA.

Journal of Pediatric Urology
|December 3, 2013
PubMed
Summary

A staccato uroflow pattern is common in children with dysfunctional voiding (DV), but interrupted or mixed patterns also occur. Simultaneous pelvic floor electromyography (EMG) is crucial for accurate DV diagnosis in children.

Keywords:
Dysfunctional voidingLUT dysfunctionOveractive bladderPelvic floor EMGUroflow pattern

More Related Videos

Real-Time Void Spot Assay
06:39

Real-Time Void Spot Assay

Published on: February 10, 2023

2.7K
Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
10:19

Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models

Published on: August 9, 2012

21.0K

Related Experiment Videos

Last Updated: May 5, 2026

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
05:25

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing

Published on: August 14, 2019

19.7K
Real-Time Void Spot Assay
06:39

Real-Time Void Spot Assay

Published on: February 10, 2023

2.7K
Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
10:19

Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models

Published on: August 9, 2012

21.0K

Area of Science:

  • Pediatric Urology
  • Urodynamics
  • Pelvic Floor Dysfunction

Background:

  • Dysfunctional voiding (DV) is often associated with a staccato uroflow pattern.
  • Previous research indicated that not all children with staccato flow exhibit active pelvic floor electromyography (EMG) during voiding.
  • The prevalence of other uroflow patterns in children with confirmed DV requires further investigation.

Purpose of the Study:

  • To determine the frequency of staccato uroflow patterns in children with EMG-confirmed dysfunctional voiding (DV).
  • To identify other uroflow patterns prevalent in children diagnosed with DV.
  • To emphasize the diagnostic utility of simultaneous uroflow and pelvic floor EMG.

Main Methods:

  • A review of a LUT dysfunction registry was conducted.
  • Children with EMG-confirmed DV were identified.
  • Uroflow patterns were classified as staccato, interrupted, mixed, or normal.

Main Results:

  • Of 121 children diagnosed with DV, 58% exhibited a staccato uroflow pattern.
  • Interrupted (19%) and mixed (10%) patterns were also observed in children with DV.
  • A bell-shaped or depressed curve was seen in 14% of children with DV.
  • Staccato patterns normalized in 96% after successful biofeedback therapy.

Conclusions:

  • While staccato uroflow is the most frequent pattern in pediatric DV, interrupted or mixed patterns are also significant.
  • Simultaneous pelvic floor EMG during uroflowmetry is essential for accurate DV diagnosis.
  • Persistent staccato patterns post-therapy may indicate treatment or diagnostic issues.