If the one number (heart rate variability) changes, one cannot tell which part (parasympathetic or sympathetic) changed.
While the pathophysiologic mechanisms linking cardiovascular events to depression are unclear, there is evidence implicating lower HRV, sympathetic tone changes, arrhythmias, and changes in ventricular electrophysiological properties [ 15].
Liberal Jewish voters — the vast majority — were sympathetic to change; the liberal J Street lobby had been formed.
These peripheral changes (sympathetic afferent coupling, vascular changes, inflammatory changes, edema, and trophic changes) cannot be seen independent of the central changes [ 1, 69].
Live on air, Foster's ardent and sympathetic campaigning changed the sprinter's mind.
Pulmonary arterial (PA) vasoconstriction in cardiac surgery can originate from the action of combined humoral, endothelial, and sympathetic tone changes.
Data from animal studies suggest that sympathetic innervation changes lead to alterations rendering the atrium more vulnerable to the arrhythmogenic triggers originating from the pulmonary veins [23 26].
Pulse arterial tonometry (PAT) is a novel technique that provides noninvasive moment-to-moment measurements of sympathetic tone changes to the cutaneous vascular bed.
Beyond patient-related issues, the imaging method chosen in this clinical study allows for ventricular imaging only, since due to the low mass of the atria only left ventricular innervation can be assessed and local sympathetic innervation changes around the pulmonary veins could not be adequately measured.
In the present study, MCA Vmean was used as a measure of cerebral perfusion, assuming that in patients with sympathetic failure changes in MCA Vmean are representative of those in CBF.
