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阵发性室上性心动过速(PSVT)属常见心律失常。患者在折返机制、发作频度、对不同抗心律失常药物的反应及有效药物最佳剂量的选择等方面,均存在较大的个体差异。如无电生理资料,则诊断是笼统的,治疗性用药是经验性的,预防性用药疗效的评定也很困难。近年来,我们参照创伤性方法,对36例有PSVT频繁发作的患者作了服用小剂量抗心律失常药物前后的无创性电生理对照研究,旨在探讨小剂量抗心律失常药物对PSVT的疗效及其无创性电生理评定标准,进而探讨其机理。对象及方法一、仪器及无创性电生理检查方法检查时按常规方法置食道双极导管于最佳位置,描记常规心电图及食道单极导联心电
Paroxysmal supraventricular tachycardia (PSVT) is a common arrhythmia. There are large individual differences in the mechanism of reentry, the frequency of seizures, the response to different antiarrhythmic drugs and the choice of the optimal dose of effective drugs. If there is no electrophysiological data, the diagnosis is general, the therapeutic drug is empirical, and the evaluation of the curative effect of the preventive drug is also very difficult. In recent years, we refer to traumatic methods, 36 patients with PSVT frequent episodes before and after taking small doses of anti-arrhythmic drugs before and after noninvasive electrophysiological control study to explore the efficacy of small doses of anti-arrhythmic drugs on PSVT and Its noninvasive electrophysiological assessment criteria, and then explore its mechanism. Objects and methods First, the instrument and noninvasive electrophysiological examination method according to the conventional method of homeopathic bipolar catheter placed in the best position, tracing the conventional ECG and esophageal monopolar lead ECG