J Neuropsychiatry Clin Neurosci 10:338-342, August 1998
© 1998 American Psychiatric Press, Inc.
Pain, Fatigue, and Sleep in Eosinophilia-Myalgia Syndrome
Relationship to Neuropsychological Performance
Dean A. Pollina, Ph.D.,
Lee D. Kaufman, M.D.,
David M. Masur, Ph.D. and
Lauren B. Krupp, M.D.
Received April 10, 1997; revised June 16, 1997; accepted June 20, 1997. From the Departments of Neurology and Medicine (Division of Rheumatology), State University of New York at Stony Brook, Stony Brook, New York; and the Department of Neurology and Psychiatry, Montefiore Hospital and Medical Center, Bronx, New York. Address correspondence to Dr. Krupp, Department of Neurology, Health Sciences Center T12-020, State University of New York at Stony Brook, Stony Brook, NY 11794-8121.
Cognitive problems are frequently reported in patients with eosinophilia-myalgia syndrome (EMS). This is the first study to explore, in EMS, the relationship between specific neuropsychological deficits and fatigue and pain. Relationships among depression, sleep disturbance, and neuropsychological deficits in EMS were also examined. Neither fatigue nor pain was correlated with memory impairment. Sleep disturbance was significantly correlated with verbal memory impairment, but not with deficits in visuospatial memory. These results suggest that cognitive loss in EMS cannot be attributed to pain or fatigue. Although some aspects of memory impairment may be associated with disturbed sleep, visual memory deficits are clearly independent of sleep deficits and may result from direct effects of the disease on the central nervous system.
Key Words: Eosinophilia-Myalgia Syndrome • Sleep • Visual Memory
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