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Related Concept Videos

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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...
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Gastrointestinal (GI) diagnostic studies are pivotal in confirming, ruling out, diagnosing, or staging various diseases, including cancers. Following diagnosis, allocating time for discussions with the patient and providing informational resources is crucial. Diagnostic assessments of the GI tract often occur in outpatient settings like endoscopy suites or GI labs. Preparation for these tests may include dietary restrictions, fasting, liquid bowel preparations, laxatives, enemas, and the...
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Related Experiment Video

Updated: Mar 9, 2026

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
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[Evaluation of test methods for defecation disorders].

Zhihui Huang, Ning Dai1

  • 1Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China. ndaicn@yahoo.com.

Zhonghua Wei Chang Wai Ke Za Zhi = Chinese Journal of Gastrointestinal Surgery
|December 22, 2016
PubMed
Summary
This summary is machine-generated.

Defecation disorders require multiple tests for diagnosis. Anorectal manometry, defecography, and balloon expulsion tests are crucial, each offering unique insights into anorectal and pelvic floor function.

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Area of Science:

  • Gastroenterology
  • Colorectal Surgery
  • Pelvic Floor Disorders

Background:

  • Defecation disorders are common gastrointestinal issues.
  • Slow colonic transit and paradoxical anal contraction characterize these disorders.
  • Accurate diagnosis is essential for effective treatment.

Purpose of the Study:

  • To highlight the role of gastrointestinal motility tests in diagnosing defecation disorders.
  • To explain the specific contributions of Anorectal Manometry (ARM), defecography, and balloon expulsion tests.
  • To emphasize the importance of combining these diagnostic methods.

Main Methods:

  • Anorectal manometry (ARM) assesses rectal and anal sphincter function, sensory testing, and reflexes.
  • Defecography visualizes anorectal and pelvic floor anatomy and function.
  • Gastrointestinal transit tests evaluate colonic transit time.

Main Results:

  • ARM provides detailed information on sphincter pressures and rectal sensitivity.
  • Defecography reveals structural and functional abnormalities of the anorectum and pelvic floor.
  • Gastrointestinal transit tests quantify colonic transit delays.

Conclusions:

  • No single test is sufficient for diagnosing defecation disorders.
  • A combination of ARM, defecography, and balloon expulsion tests is recommended for comprehensive evaluation.
  • Integrated diagnostic approaches improve the accuracy of classification and treatment planning.