A 46-year-old man presented with left ventricle posteromedial papillary muscle ventricular tachycardia, presyncope, and a type-1 Brugada pattern on the post-electrical cardioversion electrocardiogram. There was a probability of a Brugada syndrome with the expression of its disease in the left ventricle; or a left monomorphic ventricular tachycardia as a part of Brugada phenocopy; or a Brugada syndrome with left monomorphic ventricular tachycardia as an epiphenomenon. Cardiac magnetic resonance, electrophysiological study, and ajmaline test were the key diagnostic tools employed.

中文翻译：

---

左心室后内侧乳头肌室性心动过速暴露的 Brugada 综合征：巧合或后果

一名 46 岁男性因左心室后内侧乳头肌室性心动过速、先兆晕厥和电复律后心电图上的 1 型 Brugada 模式就诊。存在 Brugada 综合征的可能性，其疾病在左心室中表现出来；或左单形室性心动过速作为 Brugada 表型的一部分；或以左单形室性心动过速为伴生现象的 Brugada 综合征。心脏磁共振、电生理学研究和 ajmaline 测试是所采用的关键诊断工具。