据文献报道,许多心脑血管疾病的发病存在明显的年周期和日周期节律。本文对脑出血(CH)的日周期和(或)年周期发病进行了深入的调查,并探讨了由不同解剖部位出血引起的可能差异,及其与性别、年龄和危险因素的关系。 病例来自1983年1月～1991年12月在意大利Ferrara大学神经外科研究所因CH住院者,通过内科检查、CT、脑血管造影、外科手术或死后尸检明确 According to the literature, many cardiovascular and cerebrovascular diseases have obvious annual and daily rhythm. In this paper, we investigated the incidence of intracerebral hemorrhage (CH) on the day cycle and / or year cycle, and discussed the possible differences caused by bleeding from different anatomical sites and their relationship with gender, age and risk factors. Cases from January 1983 to December 1991 in Italy Ferrara University Institute of Neurosurgery for CH inpatients, through medical examination, CT, cerebral angiography, surgery or post-mortem autopsy clear