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Journal of the Korean Academy of Rehabilitation Medicine 1998;22(3):610-617.
Sympathetic Skin Responses after Stellate Ganglion Block in the Patient with Reflex Sympathetic Dystrophy.
Park, Jeong Mee , Ahn, Juhn , Park, Roh Wook
1Department of Rehabilitation Medicine, Yonsei University Wonju College of Medicine.
2Department of Rehabilitation Medicine, Yonsei University College of Medicine.
반사성 교감신경 이영양증 환자의 성상신경 차단술후 교감신경 피부반응검사
박정미, 안 준1, 박노욱
연세대학교 원주의과대학 재활의학교실, 1연세대학교 의과대학 재활의학교실
Abstract

Objective
The purposes of this study were to measure the effect of Stellate ganglion block(SGB) objectively and quantitatively by the use of sympathetic skin response(SSR), and to evaluate the cumulative effects and complications of repetitive SGB and to find out optimal numbers of injection per one cycle in the patients with reflex sympathetic dystrophy(RSD).


Method
Six patients with RSD were evaluated with a SSR test before and after the injection of 1% lidocaine 4 ml by SGB method.


Results
There was a significant prolongation of latencies in SSR of the lesion side of sixty mixed cases by the SGB methods and SSR tests. There were no significant changes in the latency and amplitude of SSR from the lesion side between pre- and post injection states. There was a significant decrease of amplitude in the sound side after the injection. The differences of the amplitudes between pre- and post injections were significantly higher in the lesion side than the sound side. The degree of pain of the patients with RSD was evaluated by visual analogue scale(VAS), which scored on pre and post injection state decreased from 10 to 6.5 by 5 times injections, but did not decrease by more injections.


Conclusion
We concluded that SGB is more effective in the RSD lesion side than the sound side and the SSR is a useful test for evaluating the effect of SGB.

Key Words: Reflex sympathetic dystrophy, Stellate ganglion block, Sympathetic skin response, Visual analogue scale


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