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- W4256138263 abstract "The complex regional pain syndrome type I (CRPS) may occur following trauma or surgery to an extremity. The purpose of this study was to assess the efficacy of a new technique laser Doppler image (LDI) in the diagnosis of CRPS of the upper extremity. A total of 45 subjects, between 26 and 56 years of age were included in this study, 25 subjects (Group I) had a clinical diagnosis of CRPS I of one hand, and the remaining 20 were healthy subjects (Group II) served as a control. Each patient received an LDI to measure the cutaneous blood flow (flux value). LDI was done with and without Mueller's maneuver to assess sympathetic function. In normal subjects, the differences in the perfusion values (flux unit) between two hands averaged 2.2 ± 0.5% (1.22 to 3.18%) without and 2.2 ± 0.6% (1.02 to 3.38%) with the Mueller's maneuver. For CRPS I patients, an abnormal perfusing value for the affected hands occurred in all 25 patients without Mueller's maneuver. The differences between contralateral and affected hands averaged 15 ± 1.4%. With Mueller's maneuver, the average reduction of flux unit from the basal value was significantly greater in the control hands (4.7 ± 0.6%, ranging from 3.5 to 5.9%) than the affected hands (1.1 ± 0.3%, ranging from 0.4 to 1.8%) suggesting an impaired sympathetic function in the majority of CRPS patients. Results of this study demonstrated that the LDI is very sensitive in detecting changes in skin blood flow in CRPS I patients, and is useful for the assessment of sympathetic function when combined with Mueller's maneuver and therefore is a reliable tool to supplement the diagnosis of CRPS." @default.
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- W4256138263 date "2005-01-01" @default.
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- W4256138263 title "Assessment of Laser Doppler Imaging for the Diagnosis of Complex Regional Pain Syndrome I" @default.
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- W4256138263 doi "https://doi.org/10.3109/j426v01n04_03" @default.
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