Effects of quantitatively controlled left ventricular-atrial regurgitation on indicator-dilution curves in the dog.
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چکیده
منابع مشابه
Detection and assessment of mitral regurgitation by left atrial indicator-dilution curves.
IX THE CONTINUING search for an accurate method of assessing mitral regurgitation, an indicator has been injected into the left ventricle, and the subsequent dilution curves have been recorded from both the left atrium and a peripheral artery. ' With increasing mitral regurgitation, an increasing concentration of early appearing dye can be detected in the left atrium, when normally there is lit...
متن کاملHemodynamic effects of quantitatively varied experimental mitral regurgitation.
Mitral regurgitation was produced in the open-chest dog by permitting blood to flow from left ventricle through a flow meter into the left atrium during systole. The hemodynamic effects of known amounts of regurgitation were studied. Two liters per minute of mitral regurgitant flow had relatively little effect on effective cardiac output, aortic pressure, left atrial pressure and on the left ve...
متن کاملMeasurement of mitral regurgitation in man from simultaneous atrial and arterial dilution curves after ventricular injection.
THE MOST DIRECT APPROACH to measurement of the volume of blood regurgitating across an insufficient mitral valve consists of the injection of indicator into the left ventricle and simultaneous sampling of blood from the left atrium and from the aorta or one of its branches. If mixing is complete in the left ventricle, the distribution of indicator to upstream and downstream collection sites is ...
متن کاملIndicator-dilution curves in acyanotic congenital heart disease.
Dye dilution and cardiac catheterization technics were used to study 36 patients with a central left-to-right shunt due to patent ductus arteriosus, atrial septal defect or ventricular septal defect. The configuration of dilution curves following injection of dye into an antecubital vein was similar in all instances. Principal abnormalities of the curve were a prolongation of its disappearance ...
متن کاملComparison of left ventricular and pulmonary arterial injection sites in determination of cardiac output by indicator dilution technique.
Cardiac outputs calculated from left ventricular indicator dilution curves were compared to outputs calculated from pulmonary arterial curves in 58 patients with a variety of cardiac abnormalities. Cardiac outputs calculated from left ventricular and pulmonary arterial curves differed by only 0.037 ± 0.052 LI mm. Individual measurements of cardiac output using left ventricular curves had an est...
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عنوان ژورنال:
- Circulation research
دوره 9 شماره
صفحات -
تاریخ انتشار 1961