Is Occult Genetic Substrate the Missing Link Between Arrhythmic Mitral Annular Disjunction Syndrome and Sudden Cardiac Death?

被引:14
作者
Appignani, Marianna [1 ]
Khanji, Mohammed Y. [2 ]
Arbustini, Eloisa [3 ]
Stuppia, Liborio [4 ]
Ceriello, Laura [1 ]
Di Girolamo, Enrico [1 ]
Mantini, Cesare [1 ]
Gallina, Sabina [5 ]
Chahal, C. Anwar A. [6 ]
Ricci, Fabrizio [5 ]
机构
[1] SS Annunziata Hosp, Chieti, Italy
[2] Barts Hlth NHS Trust, Barts Heart Ctr, London, England
[3] Univ Pavia, Fdn IRCCS Policlin San Matteo, Pavia, Italy
[4] G Annunzio Univ Chieti Pescara, Dept Psychol Hlth & Territorial Sci, Hlth & Territorial Sci, Chieti, Italy
[5] G Annunzio Univ Chieti Pescara, Dept Neurosci Imaging & Clin Sci, Via Vestini 33, I-66013 Chieti, Italy
[6] Univ Penn, Dept Cardiol, Philadelphia, PA 19104 USA
关键词
D O I
10.1016/j.cjca.2021.04.014
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
We present the case of a 28-year-old man with a history of unexplained syncope, frequent ventricular arrhythmias, familial LMNA-related dilated cardiomyopathy (DCM), and mitral annular disjunction (MAD). We provide the first association of a novel truncating LMNA variant serving as a potential vulnerable substrate for arrhythmogenic MAD syndrome. This could suggest a possible synergistic role between concealed genetic variants (resulting in fibrosis as a "substrate" for arrhythmogenesis) and the presence of mitral annular disjunction (the "trigger" with mechanical stretch initiating ventricular arrhythmias), which may provide a link between mitral valve prolapse and sudden cardiac death.
引用
收藏
页码:1651 / 1653
页数:3
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