Parallels between patients post-sympathectomy and patients with tetraplegia:

"-Adrenoceptor responsiveness in dorsal foot veins is increased in patients with tetraplegia. Hypersensitivity of vascular -adrenoceptors may contribute to autonomic dysreflexia in patients with high spinal cord injury."

J. M. O. Arnold¹ , Q. -P. Feng¹, G. A. Delaney² and R. W. Teasell³

(1)	Victoria Hospital, University of Western Ontario, 375 South Street, N6A 4G5 London, Ontario, Canada

(2)	Parkwood Hospital, University of Western Ontario, London, Ontario, Canada

(3)	University Hospital, University of Western Ontario, London, Ontario, Canada

Received: 5 September 1994 Accepted: 20 July 1995