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首页> 外文期刊>PACE: Pacing and clinical electrophysiology >Successful radiofrequency catheter ablation of automatic atrial tachycardia with regression of the cardiomyopathy picture.
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Successful radiofrequency catheter ablation of automatic atrial tachycardia with regression of the cardiomyopathy picture.

机译：自动射频消融自动房性心动过速与心肌病图片的消退。

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摘要

Ectopic atrial tachycardia (EAT) is often refractory to pharmacological suppression, and if uncontrolled, it can lead to cardiomyopathy. Although RF current catheter ablation therapy has been effective in eliminating the arrhythmia, there is limited information, particularly in adult patients with regard to the reversal of the tachycardia induced cardiomyopathy. Four adult patients, 20-56 years of age, and a 6-year-old boy, were referred with refractory EAT. Four patients had heart failure and three had depressed LV function by echocardiographic criteria. All patients underwent electrophysiological study, and RF ablation was successful in abolishing the arrhythmogenic foci. Of these, four were located in the right atrium and one in the left atrium, and were identified by recording of the earliest atrial activation. No complications occurred. Termination of the EAT resulted in symptomatic improvement. Serial echocardiographic assessment of LV function indicated a significant reversal of the cardiomyopathy picture with reduction in chamber size and recovery in systolic function; indices of diastolic dysfunction persisted in one patient. Chronic, uncontrolled EAT can cause tachycardia induced cardiomyopathy. The picture of the cardiomyopathy resolves after elimination of the focus. RF ablation is both effective and safe, and may be considered as early therapy, particularly in patients with incessant EAT and ventricular dysfunction.
机译：异位性心动过速（EAT）通常难以耐受药理抑制作用，如果不受控制，会导致心肌病。尽管射频电流导管消融疗法已在消除心律不齐方面有效，但关于逆转心动过速引起的心肌病的信息特别有限，尤其是在成年患者中。四名20-56岁的成年患者和一个6岁的男孩接受了难治性EAT治疗。根据超声心动图标准，四名患者出现心力衰竭，三名左室功能下降。所有患者均接受了电生理研究，并且射频消融成功地消除了致心律失常灶。其中，四个位于右心房，一个位于左心房，并通过记录最早的心房激活来识别。没有并发症发生。 EAT的终止导致症状改善。连续超声心动图评估左心室功能表明心肌病的影像有明显的逆转，其心腔缩小和收缩功能恢复。一名患者的舒张功能障碍指数持续存在。长期，无节制的饮食可导致心动过速诱发的心肌病。消除焦点后，心肌病的图像消失。射频消融既有效又安全，可以被认为是早期治疗，尤其是对于饮食失调和心室功能不全的患者。

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