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 Experiment Videos

Ureteral pressure flow studies in difficult diagnostic problems.

V Marshall, R H Whitaker

    The Journal of Urology
    |August 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

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

    Sort by
    Same author

    The search for the definition, etiology, and effective diagnosis of upper urinary tract obstruction: the Whitaker test then and now.

    Journal of pediatric urology·2019
    Same author

    Skin closure in thin-skinned individuals using a continuous suture.

    Journal of plastic, reconstructive & aesthetic surgery : JPRAS·2017
    Same author

    Challenges and opportunities in RSV vaccine development: Meeting report from FDA/NIH workshop.

    Vaccine·2016
    Same author

    An investigation of the support needs of men and partners throughout the prostate cancer journey.

    Psycho-oncology·2014
    Same author

    Methyl CpG binding domain ultra-sequencing: a novel method for identifying inter-individual and cell-type-specific variation in DNA methylation.

    Genes, brain, and behavior·2014
    Same author

    Pelvi-ureteric junction and primary pelvic hydronephrosis.

    Journal of the Royal Society of Medicine·2010
    Same journal

    On the Memoryless Property in Markov Models for NMIBC Cost-Effectiveness Analysis.

    The Journal of urology·2026
    Same journal

    Multi-institutional Assessment of Performance Metrics for MRI-targeted Transperineal Prostate Biopsy.

    The Journal of urology·2026
    Same journal

    Urinary Supersaturation in a Randomized Trial among Individuals with Recurrent Nephrolithiasis comparing Empiric versus Selective Preventive Therapy: The URINE Trial.

    The Journal of urology·2026
    Same journal

    The FDA Should Allow More BCG Strains into the US Market: How Recent Landmark Trials Expose a Regulatory Paradox.

    The Journal of urology·2026
    Same journal

    Let's Shift the Focus from Death to Life after Fournier's Gangrene.

    The Journal of urology·2026
    Same journal

    Endourology and Nephrolithiasis.

    The Journal of urology·2026
    See all related articles

    A pressure flow test accurately diagnoses upper urinary tract obstruction in dilated, non-refluxing ureters. This diagnostic method helps avoid unnecessary surgeries, successfully excluding obstruction in 4 out of 5 patients.

    Area of Science:

    • Urology
    • Nephrology
    • Diagnostic Imaging

    Background:

    • Ureteral operations for dilated, non-refluxing ureters require confirmation of obstruction to prevent unnecessary and potentially hazardous procedures.
    • Radiographic evidence alone can be inconclusive in diagnosing upper urinary tract obstruction.

    Observation:

    • A pressure flow test was conducted on 5 patients with ambiguous radiographic findings suggestive of obstruction.
    • This test involves perfusing the upper urinary tract at a controlled flow rate and measuring the resultant pressure.

    Findings:

    • The pressure flow test excluded obstruction in 4 out of 5 patients, thereby avoiding surgery.
    • In the remaining patient, the test confirmed obstruction, which was subsequently relieved surgically.

    Related Experiment Videos

    Implications:

    • The pressure flow test is a valuable tool for diagnosing or excluding upper urinary tract obstruction.
    • Accurate diagnosis via pressure flow testing can prevent unnecessary ureteral surgeries.
    • This method enhances patient safety by identifying cases where intervention is not required.