十二导联动态心电图对不明原因晕厥诊断价值的研究

目的 探讨十二导联动态心电图对不明原因晕厥的检测价值,为临床诊疗提供依据。方法 对127例病因不明的晕厥患者行十二导联动态心电图监测,并嘱咐患者在监测过程中尽可能诱发晕厥,记录晕厥发生时间及心电图变化。结果 127例患者中监测期间发生晕厥者34例,其中发生心律失常的有28例,占82.3%;对晕厥患者心律失常类型的构成比分析发现,窦性心动过缓伴窦性停搏的比例最高（39.3%）,其余依次为房室传导阻滯、室上性心律失常、室性心律;晕厥的发生与心室停搏时间相关,心室停搏时间≥3.0s晕厥发生率增加。结论 十二导联动态心电图对心源性晕厥的诊断有重要意义,能为其确诊提供依据。

The Value of 12-lead Holter for the Diagnosis of Unexplained Syncope

Objective To investigate the value of 12-lead Holter for the diagnosis of unexplained syncope so as to provide the evidence for clinical diagnosis and treatment. Method 127 cases of patients with unknown syncope were received 12-lead Holter monitoring and were asked to induce syncope as much as possible in the monitoring process and record syncope time and ECG changes. Results 34 cases of patients had the occurrence of syncope in the monitoring process, including 28 cases of arrhythmia, accounting for 82.3%. In the 28 cases of arrhythmia, the proportion of sinus bradycardia with sinus arrest was the highest （39.3%）, followed by atrioventricular conduction block, supraventrieular arrhythmias and ventricular arrhythmia. The occurrence of syncope was related with ventricular asystole time and ventricular asystole time equal or longer than 3.0 seconds increased the incidence of syncope. Conclusion The application of 12-lead Holter has a great significance on the diagnosis of cardiogenic syncope and can provide the reference for its diagnosis.