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对５２例老年急性重度一氧化碳中毒患者与５４例非老年人急性重度一氧化碳中毒患者进行临床特点比较。发现２组最常见的合并症为脑水肿（１００％）。脑梗塞、心肌损害及迟发性脑病的发生率老年组明显高于对照组（分别为Ｐ＜０．０１、Ｐ＜０．０５和Ｐ＜０．０５）；而挤压伤和低血压的发生率老年组明显低于对照组（分别为Ｐ＜０．０５和Ｐ＜０．０１）。提示老年人血液流变学的改变及机体的退行性病变是发生这些合并症的病理基础。
The clinical features of 52 elderly patients with acute carbon monoxide poisoning and 54 non-elderly patients with acute severe carbon monoxide poisoning were compared. The most common complication of the two groups was found to be cerebral edema (100%). The incidence of cerebral infarction, myocardial damage and delayed encephalopathy in the elderly group was significantly higher than that in the control group (P <0.01, P <0.05 and P <0.05, respectively); while the incidence of crush injury and hypotension The incidence of the elderly group was significantly lower than that of the control group (P <0.05 and P <0.01, respectively). Prompted changes in the elderly hemorheology and degenerative changes in the body is the pathological basis for these complications.