Title: ECG Risk Predication in ARVD
题目：心电图预测心律失常性右心室发育不良的风险
Author 作者: Semhar Tewelde

翻译：葛赟 校正：肖锋
Arrhythmogenic right ventricular dysplasia (ARVD) is a genetically determined cardiomyopathy characterized by fibrofatty replacement of the right ventricle (RV) predisposing to ventricular arrhythmias, heart failure, and sudden cardiac death (SCD).
心律失常性右心室发育不良（ARVD）是一种先天遗传性心肌病，特征表现为纤维脂肪组织替代了右心室心肌，易诱发室性心律失常，心力衰竭，和突发心脏猝死。
Twelve-lead electrocardiography (ECG) is an easily obtainable and noninvasive risk stratification tool for major adverse cardiac event (MACE); defined as a composite of cardiac death, heart transplantation, survived sudden cardiac death, ventricular fibrillation, sustained ventricular tachycardia, or arrhythmic syncope.
12导联心电图非常容易取得，是一种检测恶性心血管事件（MACE）的非创伤性危险因素评估工具。MACE包括心脏猝死，心脏移植，突发心脏猝死存活，心室纤颤，持续室性心动过速，和心律失常性晕厥。
ARVD ECG findings that predict adverse outcome are not well known.
能够评估ARVD不良预后的心电图特征还不清楚。
A multicenter, observational, long-term study, found ECG findings were quite useful for risk stratification of MACE, specifically:
一项多中心，观察性，长期的研究发现，心电图检测对MACE的风险评估非常有用，尤其是：

Repolarization criteria
复极化标准
Inferior leads T wave inversions
下壁导联T波的倒置
Precordial QRS amplitude ratio of ≤0.48
心前QRS波波幅≤0.48
QRS fragmentation 
QRS波碎裂

References 参考文献：
Saguner A, Ganahi S, et al. Usefulness of Electrocardiographic Parameters for Risk Prediction in Arrhythmogenic right ventricular dysplasia. American Journal of Cardiology. May 15, 2014. Vol 113, Issue 10,1728-1734.