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Digital Rewarming Time in the Assessment of vibration-induced White Finger

並列摘要


An objective test is needed to confirm a patient's history of vibration-induced white finger. The rewarming time of fingers after cold provocation (hand cooling) in water at 10℃, during ischemia and accompanied by body heating, has been measured in three groups of subjects. For normal men the mean rewarming time was 1.38 (SD 0.48) min with an upper 99 % confidence limit of 2.63 min. For men with Raynaud's phenomenon who had not been exposed to vibration, the median rewarming time was 8.8 min. For men with vibration-induced white finger (VWF) the median rewarming time was 2.9 min. The rewarming time was significantly prolonged in the symptomatic groups when compared with that of the normal group, but it failed to discriminate between the patients with VWF and those with Raynaud's phenomenon with other etiologies.

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