Connective tissue disorders: systemic lupus erythematosus, Sjögren's syndrome, and scleroderma.

2014 
Connective tissue disorders are systemic, autoimmune, multiorgan diseases in which the central and peripheral nervous systems are frequently involved. The objective of this chapter is to describe the neurological manifestations of three of the most common systemic autoimmune disorders: systemic lupus erythematosus (SLE), scleroderma, and Sjogren’s syndrome (SS). In SLE the neuropsychiatric manifestations involve mainly the central nervous system (CNS), including cognitive dysfunction, headache, psychosis and mood changes, seizures, cerebrovascular disease, and myelopathy. Peripheral nervous system (PNS) manifestations are less common and include polyneuropathies as well as mononeuropathies and acute inflammatory demyelinating polyneuropathy. Antiphospholipid syndrome (APLS) is relatively common and should be searched for whenever focal neurological symptoms occur. In scleroderma the PNS is more commonly involved; symptoms include polyneuropathies, entrapment neuropathies, and mononeuropathies (mostly cranial neuropathies or mononeuritis multiplex). Additionally autonomic involvement occurs and myopathies are relatively common. In SS the PNS is similarly involved with several types of polyneuropathies, mononeuropathies, and autonomic dysfunction. Also common are myelopathies and aseptic meningitides. These and other, less common manifestations, as well as the diagnostic procedures and the therapeutic approaches, will be dealt with in this chapter.
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