autonomic dysreflexia

noun

Medical Definition of autonomic dysreflexia 

: a disorder of spinal reflex activity occurring in those with spinal cord injury that is characterized by a sudden onset of hypertension, bradycardia, excessive sweating, and headache Patients with high thoracic or cervical spinal cord lesions are at risk of autonomic dysreflexiaMerck Manual of Diagnosis and Therapy, 18th edition, 2006

Note: Autonomic dysreflexia results from a faulty response of the sympathetic nervous system to stimuli (as from distension of the bladder or bowel) received below the spinal cord lesion.

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