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为了评价对程控心室刺激的反应和临床转归,作者对103例特发性扩张型心肌病患者进行前瞻性研究。当窦性心律和心室调搏频率为100次/分和150次/分时,在右室两个部位给予至多3次的期外刺激,接着以1～4μg/min速度滴注异丙肾上腺素,重复上述刺激并作记录。11例Holter监测发现自发性持续性室速的患者中,8例诱发出单形性持续性室速。35例无严重室性心律失常的患者中,无一例诱发出单形性持续性室速。56例短阵室性早搏的患者中,9例诱发出单形
In order to evaluate the response and clinical outcome of programmed ventricular stimulation, we prospectively studied 103 patients with idiopathic dilated cardiomyopathy. When sinus rhythm and ventricular pacing frequency is 100 beats / min and 150 beats / min, up to 3 extranodal stimuli are given to both sites in the right ventricle followed by instillation of isoproterenol at a rate of 1 to 4 μg / min , Repeat the above stimulation and record. Of the 11 Holter Surveillance patients who found spontaneous sustained VTs, 8 developed monomorphic sustained VTs. None of the 35 patients with severe ventricular arrhythmias induced monomorphic persistent VT. Of the 56 patients with paroxysmal ventricular premature beat, 9 developed monomorphs