手指の末梢循環機能検査法としての4℃-1分冷水浸漬法

概要

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To assess the validity of a new simplified cold water immersion test (4℃-1min method) for peripheral circulatory function, comparison was made with the conventional method (10℃-10min method). These two different methods of cold immersion test were applied to 23 patients with vibration disease and 24 healthy men. Observation was made on finger skin temperature by a thermistor and complaints in the hand by a 5-step self-reported scale method every minute during the test. The patterns of recovery of skin temperature after cold immersion in each group were similar in both methods. Pain in the hand in the 4℃-1min method was less than that in the 10℃-10min method. The recovery rate at 5min in the patients with Raynaud's phenomenon was lower than that in those without Raynaud's phenomenon in the 4℃-1min method (p<0.01). However, no significant differences were noted in 10℃-10min method. The results suggest that the new method is feasible in detecting the response of vasodilation after immersion. In the recovery rate at 5min after immersion, near values of the sensitivity and specificity were observed between 50% cut-off values in the 4℃-1min method and 30% value in the 10℃-10min method. Thus, the 4℃-1min method is considered to be more useful to evaluate the physiological response after cold immersion than the 10℃-10min method.
社団法人日本産業衛生学会の論文
1992-11-20