Results 271 to 280 of about 275,052 (295)
A clinical comparison of subdural screw pressure measurements with ventricular pressure [PDF]
Journal of Neurosurgery, 1983 ✓ Simultaneous recordings of intracranial pressure (ICP) from a single-lumen subdural screw and a ventricular catheter were compared in 10 patients with severe head injury. Forty-one percent of the readings corresponded within the same 10 mm Hg ranges, while 13% of the screw pressure measurements were higher and 46% were lower than the associated ...
J. O. Rowan +3 more
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Under-pressure: Right Ventricular Infarction
The American Journal of Medicine, 2015PRESENTATION When a 60-year-old woman’s electrocardiogram (ECG) indicated both anterior and inferior ST-segment elevation myocardial infarction, it was unclear which artery was blocked until treatment with nitroglycerin and morphine rendered her hypotensive.
Vladimir Lakhter +2 more
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Ventricular pressure-volume relations in vivo
European Heart Journal, 1992A number of fundamental mechanical properties of cardiac muscle as well as of the total ventricle are discussed. These include: Starling's law, shortening deactivation, homeometric autoregulation, and so-called hyperactivation associated with a small amount of ejection.
Jan Baan +2 more
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Right ventricular adaptation to pressure overload
Current Opinion in Critical Care, 2010Pressure overload of the right ventricle results in right ventricular failure and death. Identifying right ventricular dysfunction at less severe stages, which would allow for more effective intervention, has been limited largely due to complex three-dimensional geometry, complex left ventricular/septum interactions, and lack of accepted approaches to ...
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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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