Total and Segmental Colon Transit Time Study in Functional Constipation: Comparison With Healthy Subjects

Area of Science:

• Gastroenterology
• Digestive Health
• Clinical Diagnostics

Background:

• Constipation is a prevalent global health issue, categorized as primary or secondary.
• Primary constipation includes slow transit, normal transit, and dyssynergic defecation.
• Colon transit time (CTT) is crucial for assessing colonic motility disorders and guiding treatment.

Purpose of the Study:

• To evaluate colon transit time (CTT) in Indian patients with functional constipation compared to healthy controls.
• To assess the utility of the radio-opaque marker method for CTT measurement.

Main Methods:

• Fifty functional constipation patients and 25 healthy controls ingested radio-opaque markers at intervals.
• Abdominal X-rays were taken at 36 hours to measure total and segmental CTT.
• Marker counts in each colonic segment determined transit times.

Main Results:

• Patients with functional constipation had a significantly longer total CTT (23 hours) than healthy controls (15.4 hours).
• Right segmental transit time was notably higher in the constipation group (14.2 hours) versus controls (8.3 hours).
• While females showed slightly longer transit times, differences were not statistically significant.

Conclusions:

• The radio-opaque marker study is a simple, reliable method for evaluating constipation.
• Functional constipation is associated with significantly prolonged CTT compared to healthy populations.
• Establishing normative CTT standards for the Indian population is necessary.