目的探讨微量元素硒与心脑血管疾病的相关性。方法观察正常群体300例,心脑血管疾病309例空腹静脉的血硒含量及其相关分析。结果309例心脑血管疾病患者平均血硒水平为0.0990±0.021mg/L与正常群体血硒水平(0.46±0.0255mg/L)呈明显负相关。结论低硒与心脑血管疾病密切相关,所以低硒区域应及早补充硒元素,使心脑血管疾病得到尽快的改善和控制,并得到早期预防。 Objective To explore the correlation between trace element selenium and cardiovascular and cerebrovascular diseases. Methods The blood selenium levels in 300 cases of normal group and 309 cases of cardiovascular and cerebrovascular diseases were observed and their correlations were analyzed. Results The average selenium level in 309 patients with cardiovascular and cerebrovascular diseases was 0.0990 ± 0.021 mg / L, which was negatively correlated with the selenium level in normal subjects (0.46 ± 0.0255 mg / L). Conclusions Low selenium is closely related to cardiovascular and cerebrovascular diseases. Therefore, selenium should be replenished as early as possible in low selenium area so that cardiovascular and cerebrovascular diseases can be improved and controlled as soon as possible and early prevention can be achieved.