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Right ventricular pressure and coronary flow
American Journal of Physiology-Legacy Content, 1962A method is described which permitted separate, simultaneous measurement of blood flow in the left and right coronary arteries while the performance of the left or right ventricles was altered. As long as neither ventricle was overdistended and when arterial oxygen tension and pH were constant, blood flow in the right or the left coronary tree was a ...
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Left and right ventricular pressures in mice.
Journal of Applied Physiology, 1971Transthoracic measurements of left and right ventricular systolic pressures in anesthetized mice, using fiber optics and strain gage manometer ...
Kumar, R +3 more
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Hepatic response to right ventricular pressure overload
Gastroenterology, 2004Modifying the afferent blood supply to the liver does not change the zonal expression pattern of hepatic enzymes in the rat.We used pulmonary trunk banding (PTB) to study the effect of an efferent hindrance of blood flow on hepatic architecture and zonation of gene expression.Most PTB rats developed right ventricular hypertrophy and congestive heart ...
Gieling RG +8 more
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Ejection pressure and the diastolic left ventricular pressure-volume relation
American Journal of Physiology-Heart and Circulatory Physiology, 1977The influence of ejection pressure (EP) on the left ventricular end-diastolic pressure-volume (P-V) relation was examined in 24 paced, isolated canine hearts. A pressure servo system was used to control EP and monitor ventricular volume. For any given contractile state EP was varied: a) by 10- to 20-mmHg increments and the steady-state P-V response ...
J. S. Janicki, K. T. Weber
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Elevated right ventricular pressure
American Heart Journal, 1955T HE frequent use of cardiac catheterization in the study of many congenital and acquired heart diseases has permitted correlating the hemodynamic data with the electrocardiographic (ECG) pattern. LenPgre and co-workers’ established a relation between the main right ventricular pressure and the ECG pattern, finding that in diseases with elevated right ...
J. Gibert-Queraltó +2 more
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On the utility of Fourier analysis of left ventricular pressure
Archives Internationales de Physiologie et de Biochimie, 1976SCOPUS: ar.j ; info:eu-repo/semantics ...
Bernard, Paul P.J. +3 more
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Quantitative Assessment of Ventricular Septal Contour for Estimation of Right Ventricular Pressure
Echocardiography, 2015BackgroundQualitative assessment of ventricular septal flattening is commonly used in pediatric patients with pulmonary hypertension (PH) who lack adequate tricuspid regurgitation (TR) Doppler signal. We sought to determine the relation between quantitative measures of septal flattening including the eccentricity index (EIs) and a novel marker, the ...
William L. Border +5 more
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Influence of systolic pressure profile on rate of left ventricular pressure fall
American Journal of Physiology-Heart and Circulatory Physiology, 1991We examined the influence of the systolic left ventricular pressure (LVP) waveform on the rate of isovolumetric LVP fall, as assessed by the time constant tau. Seven open-chest dogs were instrumented with a micromanometer in the left ventricle, with segment length gauges in the anterior and posterior midwall of the left ventricle, and with a balloon ...
Gillebert, Thierry C., Lew, Wilbur Y.W.
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Left ventricular dimensions and function during right ventricular pressure overload
American Journal of Physiology-Heart and Circulatory Physiology, 1982The effects of right ventricular (RV) pressure overload on left ventricular (LV) function is controversial. Therefore, we examined LV dimensions and shortening after acute and chronic pulmonary artery (PA) constriction in six conscious dogs, preinstrumented with LV and RV catheters, an LV micromanometer, a PA inflatable cuff occluder, and ultrasonic ...
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