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Related Experiment Videos

Defecography and anorectal manometry.

R H Kruyt1, J B Delemarre, H G Gooszen

  • 1Department of Diagnostic Radiology, University Hospital Leiden, Netherlands.

European Journal of Radiology
|September 1, 1992
PubMed
Summary
This summary is machine-generated.

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The anorectal angle (ARA) significantly impacts rectal continence during defecography. Reduced anal resting pressure (Pr) and squeeze pressure (Ps) correlate with increased contrast leakage, suggesting manometry may be avoidable in some patients.

Area of Science:

  • Gastroenterology
  • Colorectal Surgery
  • Diagnostic Imaging

Background:

  • Defecography is a key diagnostic tool for anorectal dysfunction.
  • Anorectal manometry provides detailed physiological measurements.
  • Integrating these modalities can optimize patient work-up.

Purpose of the Study:

  • To evaluate the significance of the anorectal angle (ARA) in maintaining rectal continence during defecography.
  • To determine if manometric findings (anal resting pressure (Pr) and squeeze pressure (Ps)) can be predicted from defecography.
  • To identify patient subgroups who may not require anorectal manometry.

Main Methods:

  • Prospective study of 160 consecutive patients referred for defecography.
  • Measurement of contrast material leakage, anorectal angle (ARA), anal resting pressure (Pr), and squeeze pressure (Ps).

Related Experiment Videos

  • Statistical analysis to correlate defecography findings with manometry parameters.

    • Main Results:

    • The anorectal angle (ARA) was significant in maintaining rectal continence (P = 0.008).
    • Increased contrast leakage correlated with significantly decreased anal resting pressure (Pr) and squeeze pressure (Ps) (P < 0.001).
    • All 36 fully incontinent patients exhibited distinctly low squeeze pressures (Ps).

    Conclusions:

    • The anorectal angle (ARA) plays a crucial role in rectal continence during defecography.
    • Defecography findings, particularly leakage and squeeze pressure, can predict manometry results.
    • Anorectal manometry may be avoidable in patients where anal resting pressure (Pr) is not critical for treatment decisions.