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Constipation: physiopathology and classification.

¹Cattedra di Terapia Medica Sistematica, Policlinico S. Orsola, Bologna, Italy.

The Italian Journal of Gastroenterology

|November 1, 1991

Summary

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Constipation is classified into propulsion defects (colonic inertia) or expulsion defects. Expulsion defects include myogenic, neurogenic, mechanical disorders, irritable bowel syndrome, and fecal impaction.

Area of Science:

Gastroenterology
Digestive Health
Clinical Medicine

Background:

Constipation is frequently defined by bowel movement frequency, stool weight, consistency, and expulsion.
Pathophysiological classification aids in understanding constipation's diverse origins.

Purpose of the Study:

To present a pathophysiological classification of constipation.
To differentiate between propulsion and expulsion defects in constipated patients.

Main Methods:

Review of existing definitions and classifications of constipation.
Categorization of constipation based on underlying pathophysiological mechanisms.

Main Results:

Constipation is broadly classified into two groups: colonic inertia (propulsion defect) and expulsion defects.

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Expulsion defects encompass myogenic, neurogenic, and mechanical disorders.

Irritable bowel syndrome with reduced rectal compliance and fecal impaction are also categorized under expulsion defects.

Conclusions:

A pathophysiological approach provides a framework for understanding and potentially treating constipation.
Recognizing propulsion versus expulsion defects is crucial for targeted therapeutic strategies.