Abstract
SSEPs were applied to 16 cases suspected of having thoracic outlet syndrome. SSEPs were measured before operation, after excision of the serratus anterior and resection of the first rib, and in three months after the operation. Neurological TOS group indicated an increase in the N9 (1-2) conduction time before operation and the shortening in the N9 (1-2) conduction time after the first rib resection and in three months after the operation.
Vascular TOS group indicated the normal range in the N9 (1-2) conduction time before and after operation.