## Overview Thoracic inlet syndrome occurs when tension in the scalene muscles compresses the brachial plexus or vessels passing through the thoracic inlet. It can cause forelimb coldness or swelling, subtle lameness, and sensitivity at the base of the neck. Poorly fitting breast collars or harnesses may contribute. ## Causes Muscle tension or external compression from tack. ## Diagnosis Clinical signs and exclusion of other causes of forelimb lameness or vascular compromise. ## Treatment Correct tack fit, physiotherapy for the scalene muscles, and rest from aggravating work. ## Recovery and Prognosis Good when the compression is relieved. ## Prevention Proper harness and breast-collar fit.
forelimb coldness or swelling; subtle forelimb lameness; sensitivity at the base of the neck; associated with poorly fitting breast collars or harnesses
## Overview Thoracic inlet syndrome occurs when tension in the scalene muscles compresses the brachial plexus or vessels passing through the thoracic inlet. It can cause forelimb coldness or swelling, subtle lameness, and sensitivity at the base of the neck. Poorly fitting breast collars or harnesses may contribute. ## Causes Muscle tension or external compression from tack. ## Diagnosis Clinical signs and exclusion of other causes of forelimb lameness or vascular compromise. ## Treatment Correct tack fit, physiotherapy for the scalene muscles, and rest from aggravating work. ## Recovery and Prognosis Good when the compression is relieved. ## Prevention Proper harness and breast-collar fit.
forelimb coldness or swelling; subtle forelimb lameness; sensitivity at the base of the neck; associated with poorly fitting breast collars or harnesses