Diurnal Variation in Rectal Diameter

Diurnal Variation in Rectal Diameter Measured by Transabdominal Ultrasound in Healthy and Constipated Children.

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01695915

Enrollment

Registered

2012-09-28

Start date

2012-09-30

Completion date

2012-10-31

Last updated

2012-11-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Constipation

Keywords

constipation, children, healthy, rectal diameter

Brief summary

The purpose of the study is to determine the diurnal variation of rectal diameter in healthy and constipated children using transabdominal ultrasound.

Interventions

PROCEDURETransabdominal ultrasound

Transabdominal ultrasound are applied to the subjects every third hour during the study and every hour for three hours after a bowel movement.

Study design

Observational model

CASE_CONTROL

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

4 Years to 12 Years

Healthy volunteers

Yes

Inclusion criteria

Constipated Inclusion Criteria: * Children from 4 to 12 years with previously diagnosed simple constipation defined by ROME III criteria, which at inclusion is in maintenance therapy with PEG + E and has been in treatment for at least 1 month.

Exclusion criteria

* Children with known organic causes of constipation, including Hirschsprungs disease, spinal and anal congenital abnormalities, previous surgery on the colon, inflammatory bowel disease, allergy and metabolic or endocrine diseases. * Children receiving drugs known to affect bowel function during a 2 month period before initiation besides laxatives. Healthy inclusion Criteria: * Children between 4 and 12 years of age. Healthy

Design outcomes

Primary

Measure	Time frame
Rectal diameter	24 hours

Countries

Denmark

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026