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Efficacy of high-frequency spinal cord stimulation for fibromyalgia syndrome in two cases: case reports
Mikiko Horita1, Ayumi Yasuhira1, Mikako Hirakawa1
1Department of Anesthesia and Perioperative Medicine, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan.
Background:
Reports on the effectiveness of spinal cord stimulation (SCS) for the alleviation of fibromyalgia syndrome (FMS) pain are scarce. We report two cases of effective high-frequency SCS at 1000 Hz against upper- and lower-limb pain in patients with FMS.
Case Presentation:
Two women with widespread pain were diagnosed with FMS and the pain gradually worsened. A 1-week SCS trial was conducted in each patient. In both cases, the patients complained of unpleasant sensations during 10-Hz SCS. However, the pain was alleviated after 1000-Hz stimulation without irritation. Therefore, leads and a generator were implanted, after which they felt almost no pain. Moreover, the dose of the oral medication could be reduced and the patients returned to their daily lives.
Conclusion:
SCS at 1000 Hz may effectively treat pain associated with FMS. Therefore, performing an SCS trial for patients with FMS with intractable pain might be worthwhile.
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