A 76-year old woman with a history of stage 3 arterial hypertension, paroxysmal atrial fibrillation, hypercholesterolemia and type 2 diabetes mellitus. Ventricular tachycardia was the first clinical manifestation of the disease. Echocardiography revealed hypertrophic cardiomyopathy with a high intraventricular gradient of 47 mmHg and midventricular obstruction at the level of the papillary muscles (the lumen of the left ventricle was 1-2 mm during systole). No ventricular aneurysm was found but the ventricle was elongated and dilated in the periapical part where systolic function was decreased but synchronized in time. Coronary angiograms showed no narrowing of coronary arteries. A single-chamber cardioverter-defibrillator (ICD, implantable cardioverter-defibrillator) was implanted to prevent sudden cardiac death. Modified-release metoprolol and amiodarone were administered in antiarrhythmic therapy. This case represents a rare kind of hypertrophic cardiomyopathy in an elderly woman which is characterized by midventricular obstruction.
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