The aim of this study was to compare the systemic hemodynamic effects of four commonly used anesthetic regimens in mice chronically instrumented for direct and continuous measurements of cardiac output (CO). Mice (CD-1, Swiss and C57Bl6) were instrumented with a transit-time flow probe placed around the ascending aorta for measurement of CO. An arterial catheter was inserted four to five days l...

Reactive cardiac hypertrophy has long been recognized as a compensatory process that enhances ventricular function through normalization of wall stress in the face of increased hemodynamic load. For almost as long, it has also been appreciated that the natural history of a hypertrophied heart faced with unremitting hemodynamic overload is progression from a state of functional compensation to o...

We evaluated the use of rapid atrial stimulation (RAS) to produce 2:1 atrioventricular (AV) block as a method for treating supraventricular tachycardias. We studied the cardiovascular hemodynamic changes before and after block in eight adult dogs and nine young dogs (3-4 1/2 weeks old). In each dog an electrocardiogram; cardiac index; aortic, pulmonary, and left ventricular (LV) systolic and en...

Assessment of hemodynamic status in a shock state remains a challenging issue in Emergency Medicine and Critical Care. As the use of invasive hemodynamic monitoring declines, bedside-focused ultrasound has become a valuable tool in the evaluation and management of patients in shock. No longer a means to simply evaluate organ anatomy, ultrasound has expanded to become a rapid and noninvasive met...

introduction: cardiac dysfunctions have been well known in patients with major thalassemia. some studies have focused on differences in blood pressure and heart rate between these patients and normal population, while this view has not been proven in other studies. given the importance of hemodynamic factors in the health of these individuals, we intend to test the hypothesis as to whether or n...

© 2017 International Journal of Critical Illness and Injury Science | Published by Wolters Kluwer Medknow The continued search for the ideal hemodynamic monitoring tool continues. Over time, the medical community has endeavored to identify correlates of hemodynamic status and resultant responses to volume expansion. Historically, we have pursued the use of physical examination alone (jugular he...

The hemodynamic findings in five patients are presented in order to demonstrate the variability in the clinical and physiologic patterns that may be encountered in restrictive disease of the pericardium. The mechanical effects of pericardial encasement previously described were confirmed. Furthermore, it was found that myocardial insufficiency and hypervolemia were not only important causative ...