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KMID : 0948920200190010023
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Clinical Pain
2020 Volume.19 No. 1 p.23 ~ p.27
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Application of Segmental Phase Angle for Assessment of Post-Stroke Complex Regional Pain Syndrome
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Park Se-Heum
Kim Woo-Jin
Jo Geun-Yeol
Kwon Jun-Koo
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Abstract
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Our objective is to evaluate the applicability of segmental phase angle (PhA) via bioelectrical impedance analysis (BIA) for post-stroke complex regional pain syndrome (CRPS). Due to its noninvasiveness and convenience, various studies have used BIA in clinical conditions. We measured segmental PhA in 4 patients at the time of CRPS diagnosis and repeated 4 weeks after 2 weeks of steroid pulse therapy. In 3 cases, the affected-to-unaffected ratio of the upper limb PhA decreased at the time of diagnosis. In 2 cases with improvement of more than 5 points in the CRPS severity score (CSS), increased ratios were observed. In other 2 cases with improvement of less than 4 points in the CSS, no remarkable changes in the ratios were found. We suggest that the segmental PhA can be helpful in assessment of post-stroke CRPS and its recovery.
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KEYWORD
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Stroke, Electric impedance, Complex regional pain syndrome
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