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对17例预激综合征(WPW)合并阵发性室上性心动过速(SVT)患者以及3例阵发性率性心动过速(VT)患者用心房心室起搏方法诱发其 SVT 及 VT 发作。结果表明,心房心室起搏大大提高了放射性核素位相分析(PA)对旁道与心室异位激动点的检出率。17例 WPW 患者在诱发 SVT 时,PA 对旁道的检出率由诱发前的68.2%增加到95.5%;3例阵发性VT 患者,在诱发 VT 时,PA 均检出心室异位激动点。由此可见,心房、心室起搏对异位病灶的诊断及消融疗效的判断是一种有价值的方法。
SVT and VT were induced in 17 patients with WPW accompanied with paroxysmal supraventricular tachycardia (SVT) and 3 patients with paroxysmal tachycardia (VT) by atrial pacing method attack. The results showed that atrial ventricular pacing greatly enhanced the detection rate of para-ventricular and ectopic agonistic spots by radionuclide phase analysis (PA). In 17 patients with WPW, the detection rate of PA on the bypass increased from 95.2% to 95.5% before induction of SVT. In 3 patients with paroxysmal VT, PA was detected in patients with VT . Thus, atrial and ventricular pacing on the diagnosis of ectopic lesions and ablation to determine the efficacy of a valuable method.