Rosés i Noguer F, Albert Brotons D C, Ferrer Menduiña Q, Gran Ipiña F, Escobar Díaz M C, Moya Mitjans A
Unidad Cuidados Intensivos Pediátricos. Hospital Vall D'Hebrón. Barcelona. España.
An Pediatr (Barc). 2006 Sep;65(3):263-5. doi: 10.1157/13092165.
Ectopic atrial tachycardia is an uncommon cause of supraventricular tachycardia in children. It can resolve spontaneously or induce dilated cardiomyopathy. It is important to recognize this entity as a reversible cause of dilated cardiomyopathy, characterized by the presence of an abnormal focus located in the atrial myocardium and distinct to sinus node. Treatment strategies include the use of antiarrhythmic drugs, radiofrequency ablation, and, in patients refractory to medical treatment, surgical resection of the ectopic focus. We describe a patient with dilated cardiomyopathy due to an atrial ectopic focus and its resolution after medical treatment.
异位房性心动过速是儿童室上性心动过速的一种罕见病因。它可自发缓解或诱发扩张型心肌病。认识到这一实体是扩张型心肌病的一种可逆转病因很重要，其特征是心房心肌中存在异常起搏点，且与窦房结不同。治疗策略包括使用抗心律失常药物、射频消融，以及对于药物治疗无效的患者，进行异位起搏点的手术切除。我们描述了一名因心房异位起搏点导致扩张型心肌病的患者及其经药物治疗后的病情缓解情况。
