Equine Colic Study Guide

Overview and Clinical Importance

Colic is the leading cause of emergency presentation and death in horses, accounting for approximately 10-15% of all equine veterinary visits. The term encompasses any condition causing abdominal pain, though gastrointestinal disorders are the most common etiology. Understanding the classification, diagnosis, and management of colic is essential for NAVLE success.

The equine large colon presents unique anatomical challenges: it is 3-4 meters long, holds up to 76 liters, and critically, has minimal mesenteric attachments to the body wall. This mobility predisposes horses to displacements and volvulus. The large colon consists of the right ventral colon, sternal flexure, left ventral colon, pelvic flexure, left dorsal colon, diaphragmatic flexure, right dorsal colon, and transverse colon.

Classification of Equine Colic

Equine colic can be classified by mechanism, location, and whether medical or surgical intervention is required.