A controlled study of peripheral neuropathy in systemic lupus erythematosus

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Abstract
In 34 patients with systemic lupus erythematosus (SLE) and 34 age- and sex-matched healthy controls we performed standardized quantifiable neurological testing for neuropathic symptoms (Neuropathic Symptom Score) and deficits (Neurological Disability Score), as well as nerve conduction velocity studies (NCV) and determination of vibration thresholds (VT). SLE patients had more neuropathic symptoms and deficits than controls. Most quantitative and qualitative NCV attributes showed no difference between patients and controls. However, if categorized as NCV abnormalities of 2 or more nerves in each individual, a frequency of polyneuropathy of 21% was seen in SLE patients compared to 6% in controls. VT indicated a slight, but widespread, diffuse polyneuropathy in patients compared to controls.