• A Robert Spitzer and Melissa Broadman.
• Neurology Department, Wayne State University School of Medicine, Detroit, Michigan, USA. raidl@ieee.org
• Pain Pract. 2010 Jan 1;10(1):54-9.

AbstractThis study investigates the response of the underlying sleep disorder associated with Chronic Fatigue Syndrome (CFS) and fibromyalgia (FM) to treatment. We retrospectively reviewed 118 cases clinically consistent with CFS or FM, treated in a neurology practice. Abnormal findings on sleep studies and associated human leukocyte antigen markers, and a clinical pattern suggestive of narcolepsy, are present in a high proportion of patients. When considered appropriate based on the clinical picture and test results, treatment with sodium oxybate was offered to these patients. Sixty percent of patients treated with oxybate experienced significant relief of pain, while 75% experienced significant relief of fatigue. We postulate that the response to oxybate in CFS and FM suggests a disturbance of sleep similar to narcolepsy. These findings support this novel approach to intervention and further research. The inability to distinguish CFS and FM by testing and response to treatment suggests that they may represent variations of the same disorder or may be closely related disorders.

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