全部病例均为 1992年 10月至 1998年 3月到我院急诊就诊的一氧化碳中毒患者。排除原有较重心、肺、肝、肾等疾病及其它原因引起的组织脏器损伤。根据中枢神经系统损害的程度将中毒分为 3度。轻度 :头痛、头昏、恶心、呕吐、嗜睡等。中度 :浅昏迷但各种生理反射存在。重度 :深昏 All patients were from October 1992 to March 1998 to our hospital emergency treatment of carbon monoxide poisoning patients. Exclude the original more serious heart, lung, liver, kidney and other diseases caused by organ tissue damage. According to the degree of central nervous system damage will be poisoned into 3 degrees. Mild: headache, dizziness, nausea, vomiting, drowsiness and so on. Moderate: shallow coma but various physiological reflexes exist. Severe: deep faint