摘要
目的探讨冠心病患者无症状心肌缺血(SMI)临床特点和发生规律。方法应用24h动态心电图监测(DCG),检测60例冠心病患者心肌缺血程度,心率变异性,每次缺血发作持续时间和S-T段最大移位,以及昼夜缺血次数。结果共检出516次心肌缺血,93.8%在ST段压低时心率加快,心肌缺血幅度与症状呈正相关,而与心率变异性(HRV)呈负相关。夜间心肌缺血持续时间及ST段压低幅度明显重于白昼。结论SMI是冠心病最常见的表现形式,应和有症状心肌缺血同样给予足够重视,应根据情况给予不同的治疗。
Objective To explore the clinical characteristic and occurrence rule of silent myocardial ischemia (SMI) in coronary heart disease (CHD). Methods The 24-hours dynamic electrocardiogram monitoring was performed in 60 CHD patients to observe myocardial ischemia threshold, heart rate variability, duration of every ischemic episodes, the maximum movement of ST and the frequency of myocardial ischemia. Results The Results indicated that the 93.8% patients had fast heart rate with ST depression among total 516 ischemic episodes and the grade of myocardial ischemia had positive correlation with the state of illness, while negative correlation with the heart rate variability (HRV). The frequency of SMI and the grade of ST segment depression at nighttime was serious than those occurred on daytime. Conclusions SMI is the most common manifestation in patients with CHD. It should be paid the same enough attention as the symptomatic. It is necessary for us to use different methods in treatment.
出处
《海南医学》
CAS
2005年第3期19-20,共2页
Hainan Medical Journal
关键词
冠心病
心肌缺血
动态心电图
心率变异性
Coronary heart disease
Myocardial ischemia
Dynamic electrocardiogram
Heart rate variability.
