致心律失常性右室心肌病
一种遗传性心肌病,其特征是右心室游离壁心肌发生进行性纤维脂肪替代(主要累及“发育不良三角”:右室流出道、心尖部和三尖瓣下区)。
定义
一种遗传性心肌病,其特征是右心室游离壁心肌发生进行性纤维脂肪替代(主要累及“发育不良三角”:右室流出道、心尖部和三尖瓣下区),引起局部和全右室结构异常,并易发生源于右心室的严重室性心律失常及心源性猝死 [C1] [E3] [G5-14] [G5-15]。
严重程度标准
- Epsilon波(主要除极标准):存在Epsilon波,定义为右胸导联(V1、V2或V3)中QRS波群终末与T波起始之间清晰可见的低振幅、高频信号 [E3] [G5-15]。
- T波倒置(主要复极标准):在无完全性右束支传导阻滞的情况下,14岁以上个体右胸导联(V1、V2和V3,或更广泛导联)出现T波倒置(V1至V3导联T波倒置)[E3] [G5-14]。
- 终末激动延迟(次要标准):V1–V3导联从S波谷底至QRS波群终末测得的S波终末激动时限(TAD)≥ 55 ms [E3] [G5-14]。
- 右心室功能障碍与扩张(主要影像学标准):
- 室性心律失常:呈左束支传导阻滞(LBBB)形态且电轴向上或向下的持续性或非持续性单形性室性心动过速(起源于右心室)[E3] [G5-14]。
分层表现
模拟器严重程度分级
模拟器严重程度分级:
单一级别
基线心律:
正常窦性心律
亦称为: 致心律失常性右室心肌病 · 致心律失常性右室发育不良 · 致心律失常性心肌病 · ARVD · ARVC
该组中的其他病变
文献来源
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- [E3] Diagnosis of arrhythmogenic right ventricular cardiomyopathy/dysplasia: proposed modification of the task force criteria . Circulation (2010) . DOI: 10.1161/CIRCULATIONAHA.108.840827 PubMed: 20172911
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- [G1-12] The Third Heart Sound . Clinical Methods: The History, Physical, and Laboratory Examinations (1990) . PubMed: 21250184
- [G1-13] The Fourth Heart Sound . Clinical Methods: The History, Physical, and Laboratory Examinations (1990) . PubMed: 21250185
- [G1-14] Systolic Murmurs . Clinical Methods: The History, Physical, and Laboratory Examinations (1990) . PubMed: 21250186
- [G5-14] HRS expert consensus statement on evaluation, risk stratification, and management of arrhythmogenic cardiomyopathy . Heart Rhythm (2019) . DOI: 10.1016/j.hrthm.2019.05.007 PubMed: 31078652
- [G5-15] Epsilon waves: Milestones in the discovery and progress . Ann Noninvasive Electrocardiol (2018) . DOI: 10.1111/anec.12571 PubMed: 29978588