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目的:观察夜间非勺型心率与不同类型的冠心病的关系。方法:220例经冠状动脉造影证实的冠心病患者,分为急性心肌梗死(AMI)组69例、不稳定型心绞痛(UAP)组71例,稳定型心绞痛(SAP)组80例。72例非冠心病者作为对照组。应用动态血压记录各组患者入院后第14天的24h心率,分析夜间非勺型心率百分比。结果:AMI组、UAP组、SAP组和对照组夜间非勺型心率百分比分别为46.25%、35.36%、20.25%和18.32%。AMI组比UAP组大(P<0.05),且均大于SAP组和对照组(均P<0.05)。结论:冠状动脉病变越严重,夜间非勺型心率比例就越大。
Objective: To observe the relationship between non-dipper heart rate and different types of coronary heart disease at night. Methods: A total of 220 patients with coronary artery disease confirmed by coronary angiography were divided into AMI group (n = 69), unstable angina pectoris group (n = 71) and stable angina pectoris group (n = 80). 72 cases of non-coronary heart disease as a control group. The ambulatory blood pressure was recorded at 24 hours after admission on the 14th day, and the percentage of non-spoon type heart rate at night was analyzed. Results: The non-dipper heart rate of AMI group, UAP group, SAP group and control group were 46.25%, 35.36%, 20.25% and 18.32% respectively at night. AMI group than the UAP group (P <0.05), and were greater than the SAP group and the control group (P <0.05). Conclusion: The more serious coronary lesions, the greater the proportion of non-spoon heart rate at night.