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Evaluation of constipation in children using high-resolution anorectal manometry

Vishrutha S Poojari1, Sonal Mirani1, Naman S Shetty2

  • 1Fellow, Department of Pediatric Gastroenterology and Hepatology, BJ Wadia Hospital for Children, Mumbai, India.

Tropical Doctor
|July 16, 2021
PubMed

Insights

High-resolution anorectal manometry revealed that most childhood constipation cases are functional. Abnormal anal sphincter pressures, like hypotension and hypertension, are common in chronic functional constipation.

Area of Science:

  • Pediatric Gastroenterology
  • Colorectal Surgery

Background:

  • Constipation is a common pediatric issue.
  • Accurate diagnosis of constipation causes is crucial for effective treatment.

Purpose of the Study:

  • To identify the causes of constipation in children using high-resolution anorectal manometry.
  • To investigate the role of anal sphincter abnormalities in pediatric constipation.

Main Methods:

  • Prospective, cross-sectional study.
  • Enrolled 33 children with constipation.
  • Utilized high-resolution anorectal manometry to assess anorectal function.

Main Results:

  • 91% of children had functional constipation.
  • Abnormal anal sphincter pressures (hypotonia/hypertonia) were observed in 25 children.
  • Two cases were suspected Hirschsprung's disease, and one was dyssynergic defecatory disorder.

Conclusions:

  • Functional constipation is the predominant cause of constipation in children.
  • Anal sphincter hypotension and hypertension may be associated with chronic functional constipation.
  • High-resolution anorectal manometry is valuable for diagnosing constipation etiologies in pediatric patients.

Keywords:
Anal hypotoniaanal hypertoniadyssynergiafunctional constipationhigh-resolution anorectal manometryrecto-anal inhibitory reflex

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