Diabetic and alcoholic polyneuropathies are the most common disturbances of
the peripheral nervous system. Nearly every second diabetic patient develo
ps the diabetic polyneuropathy during life time.
From clinical viewpoint we differentiate sensible and sensomotoric types of
manifestation of the disease. Focal neuropathies are rather seldom. Diabet
ic autonomic neuropathy, especially cardiac autonomic neuropathy seems to b
e diagnosed not early enough and is associated with increased mortality rat
es.