A. PreloadB. AfterloadC. ContractilityD. Stroke volume variation A. PreloadNitroglycerin is both an arterial dilator and a venodilator. However, it is primarily a venodilator. As a result, nitroglycerin infusions increase the likelihood of blood pooling in the abdominal and dependent venous ...
From these results we have concluded that the cardiac output response to physical reduction of preload and afterload depends on both the type of heart disease and the height of the initial ventricular filling pressures. The small increases in cardiac output that occurred in patients with severely ...
Ventricular function can be analyzed from measures of the ejecting phase of contraction (e.g. velocity and extent of wall shortening) in terms of the appropriateness of the matching between afterload and the level of inotropic state, as modulated by the preload. In the normal heart, under contr...
rate (140 beats/min) to render CO proportional to stroke dimension.At a matched increase in afterload (effective arterial elastance), L-NMMA increased preload (end-diastolic dimension) to a lesser degree (3.8%+/-1.5%, p < .05) than phenylephrine (9.6%+/-1.6%, p < .05 vs. L-NMMA)...
with a concomitant increase in afterload. This increased afterload is best treated with pulmonary vasodilation using agents such asprostaglandin,milrinone, or NO. Maintaining coronary perfusion of the hypertensiveright ventricleis essential to preserving its function. Thus, adequatepreloadand inotropic...
百度试题 结果1 题目Cardiac contractility is influcenced by A. preload B. afterload C. heart rate D. cardiac rhythm E. all above is correct 相关知识点: 试题来源: 解析 ADE
The booster pump, also called contractile function, quantifies the amount of blood being pumped into the LV during LA contraction. It is modulated by the LV compliance, LA afterload, LA preload, and intrinsic LA contractility. In late ventricular diastole, the LA pumps all the remaining blood...
PRELOAD, AFTERLOAD, AND CARDIAC OUTPUT IN INFANT LAMBS DURING UNILATERAL POSITIVE END EXPIRATORY PRESSURE (PEEP).An abstract is unavailable. This article is available as a PDF only.doi:10.1097/00003246-198203000-00020Fuhrman, Bradley P.Everitt, John...
The Serum Level of Brain Natriuretic Peptide Increases in Severe Subarachnoid Hemorrhage thereby Reflecting an Increase in Both Cardiac Preload and Afterload. Background: The increase of serum brain natriuretic peptide (sBNP) is well known in patients with severe subarachnoid hemorrhage (SAH). However...
PreloadAfterloadAngiotensinProteins are folded in the endoplasmic reticulum (ER). ER stress initially leads to compensatory upregulation of ER chaperones and later to apoptosis, but the contribution of biomechanical load vs. neurohumoral stress to myocardial ER stress is unknown. We show that the ER...