apical hypertrophic cardiomyopathy

(redirected from Yamaguchi syndrome)

apical hypertrophic cardiomyopathy

An uncommon variant of hypertrophic cardiomyopathy (HCM), which is characterised by myocardial hypertrophy, predominantly in the left ventricular apex, which constitutes up to 25% of all HCM in Japan, but less than 5% of non-Japanese populations.
Associations, apical HCM Sudden cardiac death, severe arrhythmias, and apical infarctions with apical aneurysms, imparting a “spade-shaped” configuration of the LV cavity at end-diastole on ventriculography and “giant” T-wave negativity in the EKG.
Diagnosis Echocardiography, cardiac MRI should be performed if EKG raises suspicion of apical HCM.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
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References in periodicals archive ?
Yamaguchi syndrome, or apical hypertrophic cardiomyopathy (ApHCM), is a nonobstructive subtype of hypertrophic cardiomyopathy which predominantly affects the left ventricular apex.
It was first described in detail by Yamaguchi in the year 1979, and thus the other given name for ApHCM is Yamaguchi syndrome. It has a variable clinical presentation which ranges from being asymptomatic to sudden cardiac death.
As far as we explored, this is the first case report of Yamaguchi Syndrome without deep negative T waves and with findings of preexcitation in literature.

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