Fontaine G, Tonet J L, Frank R, Lacroix H, Farenq G, Gallais Y, Drobinski G, Grosgogeat Y
Arch Mal Coeur Vaiss. 1985 Jul;78(7):1037-43.
Endocavitary catheter ablation consists of delivering an impulse of 160 to 240 joules via a catheter used for electrophysiological investigation resulting in an electrical discharge which, in addition to its thermal effects may alter the arrhythmogenic substrate mechanically. This method was used in 2 patients with resistant and recurrent VT after myocardial infarction complicated by ventricular aneurysm. Two sessions of catheter ablation were necessary in both patients, but in the second one a single shock was successful in critically ill patients with VT. The first patient has been followed up for 20 months and the second for 13 months. Under prophylactic antiarrhythmic therapy, neither patient has had recurrence of the ventricular arrhythmias which had previously led to their hospitalisation. Catheter ablation is therefore presented as a technique which may be performed in the electro-physiological laboratory and repeated in cases of incomplete efficacy. This method may be used successfully in the treatment of chronic VT after myocardial infarction complicated by ventricular aneurysm.
心腔内导管消融术是通过用于电生理检查的导管传递160至240焦耳的脉冲,从而产生放电,这种放电除了热效应外,还可能在机械上改变致心律失常基质。该方法用于2例心肌梗死合并室壁瘤后发生耐药性和复发性室性心动过速的患者。两名患者均需要进行两次导管消融术,但在第二次消融术中,单次电击对重症室性心动过速患者成功起效。第一名患者已随访20个月,第二名患者已随访13个月。在预防性抗心律失常治疗下,两名患者此前导致其住院的室性心律失常均未复发。因此,导管消融术是一种可在电生理实验室进行且在疗效不完全时可重复进行的技术。该方法可成功用于治疗心肌梗死合并室壁瘤后的慢性室性心动过速。