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42±17岁的连续12(男9、女3)例患者经药物治疗无效,仍有持续性VT(持续30秒以上或者需要紧急直流电击)。共记录到19次单形性室速。本组中,1例缺血性心脏病,9例非缺血性心脏病,2例未发现有器质性心脏病。左室造影射血分数为0.48±0.18(0.24～0.75)。本组中4例有晕厥史,3例有先兆晕厥史,另外5例有心悸和/或呼吸困难史。首次室速发作后1～30个月作电消融术。试用4.6±1.3种抗心律失常药物,电生理试验仍能诱发室速。对患者进行电生理研究,在室速发生时记录双心室的心内膜激动图形并记录起搏图
Patients in 42 ± 17 years of continuous 12 (9 males and 3 females) patients were ineffective and had persistent VT (sustained for more than 30 seconds or requiring an emergency DC shock). A total of 19 monomorphic VTs were recorded. In this group, 1 case of ischemic heart disease, 9 cases of non-ischemic heart disease, 2 cases did not find organic heart disease. Left ventricular angiography ejection fraction was 0.48 ± 0.18 (0.24 ~ 0.75). Four patients in this group had a history of syncope, three had a history of presyncope, and the other five had a history of palpitations and / or dyspnea. 1 to 30 months after the first episode of VT for electrical ablation. Trial 4.6 ± 1.3 kinds of anti-arrhythmic drugs, electrophysiological tests can still induce VT. Electrophysiological studies were performed on the patients, recording the endocardial endocardial patterns of biventricular ventricular tachycardia and recording pacing patterns