Systolic Time Ratio by Impedance Cardiography to Distinguish Preserved vs Impaired Left Ventricular Systolic Function in Heart Failure

Preserved Left Ventricular, Systolic Function in Clinical Congestive Heart Failure

Acute heart failure with preserved systolic function.

Many patients with acute heart failure have marked hypertension and preserved left ventricular ejection fraction. In these patients, the heart failure usually does not result from transient systolic dysfunction or valvular abnormalities but rather results from diastolic dysfunction. Treatment of this condition includes control of hypertension, cautious diuresis, and, if necessary, ventilatory s...

Systolic time ratio measured by impedance cardiography accurately screens left ventricular diastolic dysfunction in patients with arterial hypertension

Background The use of impedance cardiography (ICG) may play a role in the assessment of cardiac effects of hypertension (HT), especially its hemodynamic features. Hypertensive heart disease involves structural changes and alterations in left ventricular geometry that end up causing systolic and/or diastolic dysfunction. The IMPEDDANS study aims to assess the usefulness of ICG for the screening ...

Systolic time intervals and impedance cardiography.

Prognosis in heart failure with preserved left ventricular systolic function: prospective cohort study.

Chronic heart failure due to left ventricular systolic impairment is characterised by a poor prognosis and abnormalities of cardiac structure, autonomic and neurohumoral function, and fluid and electrolyte homoeostasis, all of which are thought to contribute to the pathophysiology of this condition. However, some studies have found that 30-50% of all patients with chronic heart failure have pre...