Highlights a rare presentation of apical hypertrophic cardiomyopathy (Yamaguchi syndrome) in an African-American patient manifesting as atrioventricular nodal re-entrant tachycardia.
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May broaden AVNRT differential to include apical HCM in African-Americans; hypothesis-generating case report requiring validation.
Apical hypertrophic cardiomyopathy (Yamaguchi syndrome) is a rare subtype of hypertrophic cardiomyopathy. The syndrome is more common in Japan where it was first described. Outside Asia, it is a very rare cause of hypertrophic cardiomyopathy. Apical hypertrophic cardiomyopathy is usually detected incidentally and has a good long-term outcome. We present a case of apical hypertrophic cardiomyopathy in an African-American patient manifesting as atrioventricular nodal re-entrant tachycardia.
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Candelario et al. (2017) studied this question.
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