餐后低血压与脑梗塞后遗症患者短暂性意识丧失的关系

Relationship between postprandial hypotension and transient unconsciousness in patients with old cerebral infarction

目的：探讨高龄老年脑梗塞后遗症患者短暂性意识丧失与餐后低血压（PPH）的关系。方法：选择31例50~68岁无脑梗塞患者为对照组,70例70岁以上,有短暂意识丧失合并脑梗塞后遗症患者为观察组,测定所有研究对象三餐前、后血压,并进行比较分析。结果：脑梗塞后遗症伴短暂意识丧失患者PPH发生率为77.14%（54/70）,其中以早餐最高。观察组早餐及晚餐后SBP下降幅度明显大于对照组[早餐（38.6±12.5）mmHg∶（30±11.4）mmHg,晚餐（30.5±10.4）mmHg∶（26.5±3.5）mmHg,P均〈0.05]。结论：脑梗塞后遗症伴短暂意识丧失患者多伴有餐后低血压,在诊治过程中除了要排除心脑血管本身疾病原因外,还应考虑餐后低血压。

Objective：To study the relationship between postprandial hypotension（PPH） and transient unconsciousness in aged patients with old cerebral infarction.Methods：A total of 31 patients without cerebral infarction aged 50~68 years were enrolled as control group.Another 70 cases with transient unconsciousness complicated old cerebral infarction aged ≥70 years were enrolled as observation group.Blood pressure before and after three meals of all subjects were measured,compared and analyzed.Results： Incidence rate of PPH was 77.14%（54/70） in patients with old cerebral infarction complicated transient unconsciousness and it reached top after breakfast.In observation group,decreasing amplitudes of systolic blood pressure after breakfast and supper were significantly higher than those of control group [breakfast（38.6±12.5） mmHg vs.（30±11.4） mmHg,supper（30.5±10.4） mmHg vs.（26.5±3.5） mmHg,P0.05 both].Conclusion： Postprandial hypotension is easy to happen in patients with old cerebral infarction complicated transient unconsciousness.During process of diagnosis and treatment,postprandial hypotension should be taken into consideration besides excluding causes from cardiovascular and cerebrovascular diseases.