Cardiac Magnetic Resonance Identified the Fibrotic Lesion Associated with Syncope Attack Due to Complete Atrioventricular Block in a Patient with Hypertrophic Cardiomyopathy and Aortic Stenosis

An 84-year-old man presented with syncope. Prior to admission, ambulatory electrocardiogram had demonstrated non-sustained ventricular tachycardia. Echocardiography showed severe aortic stenosis. He was also diagnosed with hypertrophic cardiomyopathy (HCM) by cardiac magnetic resonance (CMR) showing...

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Bibliographic Details
Published in:Internal Medicine 2019/07/15, Vol.58(14), pp.2041-2044
Main Authors: Kawamura, Takayuki, Iwanaga, Yoshitaka, Nakamura, Takashi, Yasuda, Masakazu, Kurita, Takashi, Miyazaki, Shunichi
Format: Article
Language:English
Subjects:
Aortic stenosis
cardiac magnetic resonance
Cardiomyopathy
Case Report
complete atrioventricular block
Echocardiography
EKG
Electrocardiography
Etiology
Gadolinium
Heart
hypertrophic cardiomyopathy
Hypertrophy
Internal medicine
late gadolinium enhancement
Lesions
Resonance
Stenosis
Syncope
Tachycardia
Ventricle
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Description
Summary:An 84-year-old man presented with syncope. Prior to admission, ambulatory electrocardiogram had demonstrated non-sustained ventricular tachycardia. Echocardiography showed severe aortic stenosis. He was also diagnosed with hypertrophic cardiomyopathy (HCM) by cardiac magnetic resonance (CMR) showing remarkable inhomogeneous left ventricular hypertrophy and extensive late gadolinium enhancement (LGE) in the lesions at the upper border and right-ventricular side of the basal-mid septal wall. Finally, he showed complete atrioventricular (AV) block followed by a long pause and syncope several times after admission. In this case with several possible causes of syncope, the CMR findings suggested a clue concerning the etiology of his syncope: complete AV block in HCM.
ISSN:0918-2918
1349-7235
DOI:10.2169/internalmedicine.2563-18