首发症状不典型的蛛网膜下腔出血的临床特点分析

目的探讨首发症状不典型的蛛网膜下腔出血（SAH）的临床特点，为临床诊治SAH提供参考。方法回顾性分析SAH患者137例，A组66例首发症状均不典型。B组71例首发症状为典型SAH三主征。以患者的发病年龄、基础疾病、诱因、死亡率及初诊时误诊率作为观察指标。结果A组患者发病年龄、基础疾病携带率、死亡率及初诊时误诊率明显高于B组。而发病诱因存在率则明显低于后者。结论首发症状不典型的SAH患者以老年人为主，多携带基础疾病，发病前多无明显诱因，死亡率较高，而初诊时易于误诊。

Analysis of the Clinical Features of Atypical Primary Symptom Subarachnoid Hemorrhage.

Objective To investigate the clinical features of atypical primary symptom subarachnoid hemorrhage. Meth- ods 137 cases of SHA patients were devided into 2 groups, as an atypical primary symptom group（ group A ,66 cases） and a typi- cal primary symptom group（ group B ,71 cases）. The age of onset, the rate of basic diseases, the predisposing factors, the mortality and the misdiagnosis rate were respectively observed. Results The age of onset, the rate of basic diseases, the mortality and the misdiagnosis rate of group A were significantly more than those of group B. The rate of predisposing factors of group A was signifi- cantly lower than that of the later. Conclusion The patients of atypical primary symptom SAH are mainly made up of elderly, and most of them suffer basic diseases before going to hospital. Most of these sufferers have no predisposing factors, and all of them correlates with a higher death rate. In addition, they are also easily misdiagnosed.