Table 1.

Causes of autonomic dysfunction

Primary

Pure pandysutonomia

Pure cholinergic dysautonomia

Multi-system atrophy (Shy–Drager syndrome)

Autonomic failure and Parkinson’s disease

Familial amyloid neuropathy

Familial dysautonomia

Dopamine β-hydroxylase deficiency

Baroreflex failure

Neurocardiogenic SYNCOPE

Cardiac

Myocardial ischemia

Myocardial infarction

Cardiomyopathy

Infiltrating disorders

Amyloidosis

Hemochromatosis

Fabray’s disease

Eosinophil

Secondary

Diabetes mellitus

Chronic advance kidney disease

Chronic liver disease

Alcohol-related

Thiamine deficiency

Amyloidosis

Neurologic

Spinal cord injury

Transverse myelitis

Guillain–Barré syndrome

Vasovagal syndrome

Carotid sinus-baroreceptor dysfunction

POTS

Reflex sympathetic dystrophy

Multiple sclerosis

Infection

Human immunodeficiency virus

Parasitic disease (e.g. Chagas disease)