Anti-Kv1.4 Antibody Without Myasthenia Gravis

Anti-Kv1.4 antibody is often detected in thymoma-associated myasthenia gravis patients with anti-acetylcholine receptor antibody. Herein, we describe 2 patients with concurrent myocarditis and myositis. In both cases, anti-Kv1.4 antibody was positive despite the absence of thymoma and anti-acetylcho...

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Veröffentlicht in:JACC. Case reports 2023-03, Vol.9, p.101734, Article 101734
Hauptverfasser: Kuyama, Naoto, Takashio, Seiji, Nagakura, Takumi, Imamura, Michie, Takamatsu, Koutaro, Takae, Masafumi, Hirakawa, Kyoko, Yamanaga, Kenshi, Hanatani, Shinsuke, Yamamoto, Eiichiro, Matsushita, Kenichi, Ueda, Mitsuharu, Tsujita, Kenichi
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Sprache:eng
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Zusammenfassung:Anti-Kv1.4 antibody is often detected in thymoma-associated myasthenia gravis patients with anti-acetylcholine receptor antibody. Herein, we describe 2 patients with concurrent myocarditis and myositis. In both cases, anti-Kv1.4 antibody was positive despite the absence of thymoma and anti-acetylcholine receptor antibody, and immunosuppressants eventually resolved their symptoms and cardiac function. (Level of Difficulty: Advanced.) [Display omitted]
ISSN:2666-0849
2666-0849
DOI:10.1016/j.jaccas.2023.101734