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

Evidence from dynamic integrated proctography to redefine anismus.

J P Roberts1, N R Womack, R I Hallan

  • 1Surgical Unit, Royal London Hospital, UK.

The British Journal of Surgery
|November 1, 1992
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

Black Hole Spectroscopy and Tests of General Relativity with GW250114.

Physical review letters·2026
Same author

GW250114: Testing Hawking's Area Law and the Kerr Nature of Black Holes.

Physical review letters·2025
Same author

Corrigendum to "Nomogram Predicting Bladder Cancer-specific Mortality After Neoadjuvant Chemotherapy and Radical Cystectomy for Muscle-invasive Bladder Cancer: Results of an International Consortium" [Eur Urol Focus 2021;7:1347-54].

European urology focus·2022
Same author

Nomogram Predicting Bladder Cancer-specific Mortality After Neoadjuvant Chemotherapy and Radical Cystectomy for Muscle-invasive Bladder Cancer: Results of an International Consortium.

European urology focus·2020
Same author

The Incremental Cost of Incompatible Living Donor Kidney Transplantation: A National Cohort Analysis.

American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons·2017
Same author

Justifying Nonstandard Exception Requests for Pediatric Liver Transplant Candidates: An Analysis of Narratives Submitted to the United Network for Organ Sharing, 2009-2014.

American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons·2017
Same journal

Trimester-Specific Safety of Laparoscopic versus Open Abdominal Surgery During Pregnancy: A Systematic Review and Meta-analysis.

The British journal of surgery·2026
Same journal

The Gut Microbiome in Surgical Oncology: Mechanisms, Perioperative Outcomes, and Therapeutic Opportunities.

The British journal of surgery·2026
Same journal

Patient-led, home-based follow-up for colorectal cancer: the DISTANCE multicentre stepped-wedge cluster-randomised trial.

The British journal of surgery·2026
Same journal

Correction to: Reduced secretory efficiency in parathyroid carcinoma: diagnostic value of the PTH-to-tumour-volume ratio.

The British journal of surgery·2026
Same journal

Global disparities in hepatocellular carcinoma outcomes: multicentre study.

The British journal of surgery·2026
Same journal

Surgical Outcomes from Nationwide Implementation of the International Best-Practice for Locally Advanced Pancreatic Cancer (PREOPANC-4) study.

The British journal of surgery·2026
See all related articles

Anismus, characterized by puborectalis electromyogram (EMG) recruitment, is a significant factor in defective rectal evacuation. A comprehensive definition requires EMG, intrarectal pressure, and evacuation assessment.

Area of Science:

  • Gastroenterology
  • Colorectal Surgery
  • Physiology

Background:

  • Defective rectal evacuation is a common cause of constipation.
  • The role of anismus in impaired defecation requires further elucidation.

Purpose of the Study:

  • To investigate the etiological role of anismus in defective rectal evacuation.
  • To define diagnostic criteria for anismus.

Main Methods:

  • Dynamic integrated proctography and electromyography (EMG) were used.
  • 20 controls and 71 constipated patients were evaluated.
  • Patients were categorized based on evacuation efficiency.

Main Results:

  • Anismus was significantly more prevalent in patients with poor rectal evacuation (P < 0.01).

Related Experiment Videos

  • Inability to raise intrarectal pressure was also more common in this group (P < 0.001).
  • A combination of anismus and inadequate intrarectal pressure was observed in some patients.

    • Conclusions:

    • Anismus is a key contributor to defective rectal evacuation.
    • A definitive diagnosis of anismus requires assessment of EMG recruitment, intrarectal pressure, and evacuation.
    • EMG recruitment alone is insufficient for diagnosing anismus.