1临床资料运5飞行员,37岁,飞行时间2000h。自述近两年双手受冷和接触冷水时出现小指、环指发白发紫,伴有指尖麻木刺痛感,严重时波及整个手掌。双手对称发作,小指、环指易受累,极少累及拇指。温暖时无此现象。每次发作持续数分钟后自行缓解,皮肤由青紫转为潮红,并伴烧灼感。局部 1 clinical data shipped 5 pilots, 37 years old, flight time 2000h. Read the past two years when his hands cold and cold water exposure to the little finger, the ring finger hair purple, accompanied by fingertips numbness tingling, the worst spread to the entire palm. Symmetrical hands, pinky, ring finger vulnerable, rarely involving the thumb. No such phenomenon when warm. Each episode lasts for several minutes to ease itself, the skin from the purple to flushing, accompanied by burning sensation. Partial