Combined echo-apexcardiographic assessment of left ventricular function in cardiomyopathy.

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概要

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• Eleven patients with hypertrophic obstructive cardiomyopathy (HOCM) and 9 patients with congestive cardiomyopathy (COCM) were studied to determine the usefulness of mean normalized velocity of circumferential fiber shortening (VCFS), mean normalized velocity of circumferential fiber lengthening (VCFL) and left ventricular diastolic distensibility obtained noninvasively from com-bined recordings of simultaneously calibrated left apex cardiogram and M-mode echogram. Twenty-two normal subjects were similarly investigated and served as a control. In HOCM VCFS were increased (1.83±0.2s-1 versus 1.22±0.1s-1 for controls, p<0.02) and both VCFL and diastolic distensibility were decreased (VCFL: 0.50±0.1s-1 versus 1.32s-1 in controls, p<0.001; diastolic distensibility: 0.03±0.004cm/mmHg-1 compared with 0.18±0.003cm/mmHg-1 for controls, p<0.001). In COCM all investigated indexes were diminished (VCFS: 0.49±0.1s-1 versus 1.22±0.1s-1 for controls, p<0.001; VCFL: 0.70±0.1s-1 versus 1.32±0.1s-1 in controls, p<0.01 and diastolic distensibility: 0.05±0.003cm/mmHg-1 compared with 0.18±0.003cm/mmHg-1 for controls, p<0.01). The echo-apexcardiographic indexes were significantly correlated with many analogous invasive indexes. It is concluded that the value of both M-mode echocardiography and calibrated apex cardiography is enchanced by a combination of the two methods which opens the possibility of a fresh approach to the noninvasive study of cardiac performance in cardiomyopathy.

• International Heart Journal刊行会の論文

著者

• KOLEV Nikolai

  Medical Academy, Higher Medical Institute, Department of Internal Medicine

• ROMODA Tibor

  Hungarian Institute of Cardiology, Semmelweis University, Department of Cardiology

• CSERHALMI Livia

  Hungarian Institute of Cardiology, Semmelveis University, Department of Cardiology

• LENGYEL Maria

  Hungarian Institute of Cardiology, Semmelveis University, Department of Cardiology

• ROMODA Tibor

  Hungarian Institute of Cardiology, Semmelveis University, Department of Cardiology

関連論文

• Assessment of Left Ventricular Contraction and Relaxation by Systolic and Diastolic Time Intervals Measured from the First Derivative of Apexcardiogram in Cardiomyopathy
• Influence of Acute Hemodynamic Changes on the Peak Velocity of Contractile Element Shortening and Maximum Velocity Obtained by the Calibrated Apex Cardiography in Dogs
• Combined echo-apexcardiographic assessment of left ventricular function in cardiomyopathy.

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