Autonomic Neuropathies.

The peripheral autonomic nervous system regulates the automatic, typically involuntary processes of the body under neural control. As with other types of polyneuropathy, autonomic neuropathies may arise from a variety of causes. Autonomic neuropathies may be generalized (global) or selective (affecting a single or few autonomic functions). Clinical diagnosis of autonomic neuropathies relies primarily on an appropriate clinical history incorporating an autonomic review of systems. Many cases of autonomic neuropathy remain idiopathic. When an underlying cause of autonomic neuropathy can be identified, it should be treated. In many cases of autonomic neuropathy, treatment is primarily symptomatic.