autonomic nervous system disease
Autonomic failure involves both the parasympathetic and sympathetic systems, however it is failure of the sympathetic system which produces most symptoms.
Classically the patient is a middle-aged male who complains of impotence, inability to sweat and postural blackouts when standing up.
Commonly autonomic failure is associated with systemic disease, neurodegenerative disorders or drugs effects.
Last reviewed 01/2018