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男6例、女4例。食道心房调搏诊断为隐匿性预激伴室上速,反复发作心动过速8年,心室率平均193次/min、QRS波窄,窦律时心电图无预激波。用程序刺激扫描诱发室上速10min后,以1.5mg/kg氟卡胺溶于葡萄糖15ml缓慢静注。氟卡胺终止室上速疗效为90％,无效1例心室率减慢33％,注药开始至终止时间为1～9min,平均5.22±2.9min,所用剂量20～125mg,平均83.4±44mg。用药后异位心律的R-R间期延长,AV前传间期轻度延长、VA逆传间期明显延长;心动过速终止在旁道逆传者7例、交界区前传2例。用药后心动过速消失7例,缩小1例,扩大1例。心动过速终止后未见长间歇、窦停和交界区逸搏等异常现象。注药后血压无变化,2例轻度头晕,3例舌麻,停药后消失。
6 males and 4 females. Esophageal atrial pacing diagnosis of occult pre-excitation with supraventricular tachycardia, recurrent tachycardia for 8 years, the average ventricular rate of 193 beats / min, QRS narrow, sinus rhythm ECG without pre-shock wave. Stimulation of the program using the program to stimulate the supraventricular tachycardia 10min to 1.5mg / kg flecainide dissolved in 15ml of glucose intravenously slowly. Flecainide termination of supraventricular tachycardia efficacy was 90%, 1 case of ventricular rate was slowed down 33%, injection start to end time for 1 ~ 9min, an average of 5.22 ± 2.9min, the dose of 20 ~ 125mg, an average of 83.4 ± 44mg. After treatment, the R-R interval of ectopic heart rhythm was prolonged, the interval of AV prenatal transmission was slightly prolonged, and the period of VA reverse transmission was significantly prolonged. Tachycardia was terminated in 7 cases of bypass preopmie and 2 cases of pre-transmission in junctional area. After treatment, tachycardia disappeared in 7 cases, reduced in 1 case and expanded in 1 case. Tachycardia was not long after the termination of intermittent, sinus arrest and junction area Yat stroke and other anomalies. No change in blood pressure after injection, 2 cases of mild dizziness, 3 cases of tongue anesthesia, disappear after stopping.