动态心电图诊断冠心病无症状性心肌缺血的效果评价  

Evaluation of the Effect of Ambulatory Electrocardiogram in the Diagnosis of Silent Myocardial Ischemia in Coronary Heart Disease

作　　者：杨彩琴 程诚 羊什吉措 YANG Cai-qin;CHENG Cheng;YANG Shi-ji-cuo(Department of Electrocardiology,Qinghai Cardiovascular and Cerebrovascular Disease Hospital,Qinghai Xining810000)

机构地区：[1]青海省心脑血管病专科医院心电学科,青海西宁810000

出　　处：《中国医疗器械信息》2022年第11期76-78,共3页China Medical Device Information

摘　　要：目的:探讨动态心电图诊断冠心病无症状性心肌缺血(Silent Myocardial Ischemia,SMI)患者的效果。方法:选择2020年1月~2021年1月本院收治的SMI患者179例,随机分为观察组90例和对照组89例。分别采用动态心电图和常规心电图进行诊断。观察比较两组疾病检出率及ST段下移发生次数、幅度及维持时间。结果:观察组SMI检出率92.22%,明显高于对照组的76.40%,差异有统计学意义(χ^(2)=8.485,P=0.004)。观察组ST段下移发生次数为(129.65±13.48)次、下移幅度(0.23±0.05)mV、维持时间(33.02±4.15)mV/min,各项指标均显著高于对照组,差异有统计学意义(t=15.700,8.123,10.383,P均=0.000)。结论:动态心电图诊断冠心病SMI效果良好,疾病检出率高,可密切观察ST段下移各项指标变化情况,为SMI早期干预治疗提供可靠依据,使SMI所导致的心肌梗死及猝死风险有效下降。Objective:This study aims to investigate the effect of ambulatory electrocardiogram in the diagnosis of silent myocardial ischemia(SMI)in patients with coronary heart disease.Methods:179 patients hospitalized in our hospital were randomly divided into 90 cases in the observation group and 89 cases in the control group.Routine ECG and ambulatory ECG were used for diagnosis.The detection rate of diseases and the frequency,amplitude and maintenance time of ST segment depression was observed and compared between the two groups.Results:The detection rate of SMI in the observation group was 92.22%,which statistically significantly higher than 76.40%in the control group(χ^(2)=8.485,P=0.004).All indexes in the observation group,including the number of ST segment downward movement in the observation group of was(129.65±13.48)times,the downward movement amplitude was(0.23±0.05)mV,and the maintenance time was(33.02±4.15)mV/min,which statistically significantly higher than those in the control group(t=15.700,8.123,10.383,P=0.000).Conclusion:Ambulatory electrocardiogram has good effect in diagnosing SMI of coronary heart disease and high disease detection rate.It closely observes the changes of various indexes of ST segment downward movement,provides a reliable basis for early intervention and treatment of SMI,and effectively reduces the risk of myocardial infarction and sudden death caused by SMI.

关 键 词：动态心电图 冠心病 无症状性心肌缺血 检出率 ST段下移 

分 类 号：R54[医药卫生—心血管疾病]