Objective To evaluate the efficacy,reliability and accuracy of a portable 12-lead ECG device compared to a conventional 12-lead ECG device.Methods We enrolled 40 healthy volunteers and 110 patients who received inpatient treatment in Department of Cardiovascular Center,Beijing Tongren Hospital,Capital Medical University from July to October 2016.ECG monitoring was performed at the same time in both groups by the portable 12-lead ECG device and the conventional 12-lead ECG device,respectively.The automatically measured values of heart rate (HR),width of PR interval,QRS interval,QT interval,and corrected QT (QTc) interval monitored by the two types of devices were recorded and compared.And the diagnostic accuracy of the two types of devices was compared.Results The HR and width of QTc interval on the ECG monitored by the two types of devices were significantly different (P ＜ 0.05),while the width of PR interval,QRS interval and QT interval on the ECG were not (P ＞ 0.05).The monitoring results for the healthy controls,patients with atrial fibrillation + atrial flutter,patients with acute ST-segment elevation myocardial infarction (STEMI),patients with acute non-ST-segment elevation myocardial infarction (NSTEMI) + unstable angina pectoris,patients with Ⅱ degree atrioventricular block + Ⅲ degree atrioventricular block and patients with other types of cardiac diseases by the two types of devices were similar (P ＞ 0.05).Conclusion The portable 12-lead ECG device monitoring results show good accuracy and reliability,and they are basically similar to the conventional 12-lead ECG device monitoring results.Therefore,this portable 12-lead ECG device could be widely applied in the future.%目的 通过与常规12导联心电图记录的心电图对比,评价便携式12导联心电事件捕捉器记录心电图的有效性,以及测量数据的准确性.方法 选取2016年7-10月在北京同仁医院心血管中心住院治疗的110例心血管疾病患者及40名健康志愿者,同时进行常规12导联心电图和便携式12导联心电事件捕捉器记录心电图,观察自动测量值的一致性,包括心率(HR)、PR间期、QRS间期、QT间期、矫正QT (QTc)间期;比较两种心电图机心电图诊断准确率.结果 常规心电图和便携式心电图测量的PR间期、QRS间期、QT间期比较,差异均无统计学意义(P＞0.05);常规心电图和便携式心电图测量的HR、QTc间期比较,差异均有统计学意义(P＜0.05).常规心电图和便携式心电图在正常心电图、心房颤动+心房扑动、急性ST段抬高型心肌梗死、急性非ST段抬高型心肌梗死+不稳定型心绞痛、Ⅱ度房室传导阻滞+Ⅲ度房室传导阻滞、其他诊断准确率比较,差异均无统计学意义(P＞0.05).结论 便携式12导联心电事件捕捉器所记录和传输的心电信号准确、可靠,心电图诊断基本符合,可作为临床诊断应用.
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