Acta Medica Okayama 71巻 6号
2017-12 発行

Constant Current vs. Constant Voltage Systems for Temporal Spinal Cord Stimulation for Intractable Pain

Ooi, Mayu Division of Anesthesiology, Department of Surgery Related, Kobe University Graduate School of Medicine
Yanamoto, Fujio Division of Anesthesiology, Department of Surgery Related, Kobe University Graduate School of Medicine
Sato, Hitoaki Division of Anesthesiology, Department of Surgery Related, Kobe University Graduate School of Medicine
Takao, Yumiko Division of Anesthesiology, Department of Surgery Related, Kobe University Graduate School of Medicine
Okada, Masako Division of Anesthesiology, Department of Surgery Related, Kobe University Graduate School of Medicine
Egi, Moritoki Division of Anesthesiology, Department of Surgery Related, Kobe University Graduate School of Medicine
Mizobuchi, Satoshi Division of Anesthesiology, Department of Surgery Related, Kobe University Graduate School of Medicine
Publication Date
2017-12
Abstract
Although spinal cord stimulation (SCS) is a useful treatment for chronic intractable pain, the optimal method of stimulation has not yet been established. In this prospective, crossover study, we compared the efficacy of using a constant current (CC) system with that of a constant voltage (CV) system for temporal SCS. Twenty patients were enrolled and divided into two groups. For 10 patients, a CV system was applied on Days 1-5, followed by the use of a CC system on Days 6-10. For the other 10 patients, a CC system was applied for the first five days, followed by a CV system for the subsequent five days. We evaluated the alteration of pain intensity using a visual analogue scale (VAS), the area of stimulation, the stability of effect, and patient satisfaction regarding treatment. The pain scores decreased significantly after the start of the SCS. There was no significant difference in the change in VAS between the two systems. The stimulation method used for temporal SCS did not affect the reduction of pain intensity. Patients felt a wider stimulation area by the CC system compared to the CV system.
Document Type
Original Article
Keywords
spinal cord stimulation
constant current system
constant voltage system
chronic intractable pain
pain score
Link to PubMed
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