Hypertrophic cardiomyopathy with dominant hypertrophy in the right anterobasal region of the ventricular septum: a case report.
A 62-year-old man was referred to our hospital for investigation of abnormal electrocardiography findings. The mean frontal plane QRS axis was directed toward the right superior quadrant(-125 degrees). Terminal S waves were present in all 3 bipolar standard leads and an R wave in lead aVR. RS complex was seen in lead V1 and deep S waves in leads V2-V6. Left ventricular hypertrophy associated with asymmetrical septal hypertrophy was suspected based on transthoracic echocardiography, but the echocardiographic quality was poor. Magnetic resonance imaging revealed hypertrophic cardiomyopathy with massive wall thickening involving the right anterobasal region of the ventricular septum. Magnetic resonance imaging may provide useful information about the distribution of ventricular myocardial hypertrophy in patients with hypertrophic cardiomyopathy and unusual electrocardiography findings.
First Department of Internal Medicine, Niigata University School of Medicine.
T
T
Matsubara
M
M
Yamazoe
M
M
Kimura
T
T
Hori
K
K
Ozaki
K
K
Hatada
Y
Y
Aizawa
D002312:Cardiomyopathy, Hypertrophic / Q000473:pathology* / Q000503:physiopathology; D004562:Electrocardiography; D006346:Heart Septum / Q000473:pathology*; D006801:Humans; D006984:Hypertrophy; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged