[Non-invasive evaluation of left-ventricular function in hypertension].
Left-ventricular functions were assessed by means of mechanocardiography in patients with essential hypertension in the absence of signs of heart failure. A significant prolongation of the isovolumic relaxation phase, rapid filling phase, and an increase in the amplitude of apex-cardiographic "a" wave were found in hypertensive patients showing no ventricular hypertrophy. Similar but more pronounced disorders were observed in patients with ventricular hypertrophy where, in addition, the pre-ejection period was prolonged and there were signs of asynergic contraction. The findings testify to diastolic dysfunction of the left ventricle as a result of its impaired compliance, already present in the early phases of essential hypertension. Mechanocardiography is a suitable method for the detection of cardiac dysfunction in essential hypertension.
Vokrouglitskiĭ
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L
Iandik
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I
D000328:Adult; D006332:Cardiomegaly / Q000175:diagnosis / Q000209:etiology; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D007702:Kinetocardiography; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction
Neinvazivnaia otsenka funktsional'nogo sostoianiia levogo zheludochka serdtsa pri gipertonicheskoĭ bolezni.