Measurement of Ultrasonographic Rectal Diameter in Children With Constipation

The aim of this study is to evaluate the diagnostic accuracy of rectal diameter measured by ultrasonography in predicting constipation defined by clinical criteria.

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Key information

Conditions

Rectum Diameter Constipation Pathological Conditions, Signs and Symptoms Rome IV Functional Constipation Signs and Symptoms Signs and Symptoms, Digestive

Age range

5 year–17 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Sancaktepe Sehit Prof dr Ilhan Varank Training and Research Hospital

Istanbul, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Undergoing transabdominal ultrasonographic evaluation of rectal diameter
Evaluated according to the Rome IV criteria
Between 5-17 years old

Exclusion criteria

Neurological conditions
Constipation associated with anatomical problems

Treatment and study plan

Ultrasonographic rectal diameter measurement

Diagnostic Test

Transabdominal ultrasonographic measurement of rectal diameter was performed to evaluate fecal retention and diagnose constipation in children. Rectal diameter measurements were compared with clinical diagnostic criteria.

Primary outcomes

Area Under the Receiver Operating Characteristic Curve for Ultrasonographic Rectal Diameter in Diagnosing Functional Constipationent

Time frame: Baseline

Area under the receiver operating characteristic curve (AUC) of transabdominal ultrasonographic rectal diameter measurement for discriminating children with constipation from non-constipated children.

Secondary outcomes

Optimal Rectal Diameter Cut-off Value for Diagnosing Functional Constipation

Time frame: Baseline

Sponsors and collaborators

Lead sponsor

Sehit Prof. Dr. Ilhan Varank Sancaktepe Training and Research Hospital

Other

Registry information

Official study title

Diagnostic Value of Ultrasonographic Rectal Diameter for Identifying Constipation in Children

Important dates

Study start: 2024
Primary completion: 2026
Study completion: 2026
First posted: Jun 18, 2026
Registry last updated: Jun 18, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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