Usefulness and Limitations of Left Ventricular End-Systolic Indices, End-Systolie Volume and Left Ventricular Peak Systolic Pressure/End-Systolic Volume Ratio

Normal Value of Left Ventricular End-Systolic Elastance in Infants and Children

Background: In certain conditions, there is a need for a specific and improved measure of cardiac performance.  Routine methods for assessing left ventricular (LV) function are based on image-analysis or right heart monitoring which do not allow evaluation of ventriculo-arterial interaction. Chen et al presented a noninvasive method allowing measurement of end-systolic pressure–volume relation ...

Determination of left ventricular end-systolic pressure-volume relationships by the conductance (volume) catheter technique.

Using a multielectrode conductance catheter to estimate continuous left ventricular volume we determined the end-systolic pressure-volume relationship (ESPVR) in situ in open-chest anesthetized dogs. Dogs (n = 8) were studied in the control state and after pharmacologic sympathectomy (hexamethonium) and surgical vagotomy both before and after the administration of dobutamine. ESPVR was measured...

Effects of stroke volume and velocity of ejection on end-systolic pressure of canine left ventricle. End-systolic volume clamping.

To study the effects of contraction mode on ventricular end-systolic pressure-volume relationship, we compared the end-systolic pressure of isovolumic contraction with that of ejecting contraction at an identical end-systolic volume. The left ventricle of excised cross-circulated canine hearts was fitted with a water-filled balloon. The balloon was connected to a hydraulic pump that allowed the...

Arterial and left ventricular end-systolic elastance in normal children.

OBJECTIVE Assessing the left ventricular (LV) functions in Pediatric Intensive Care Unit, and those pediatric patients with compromised ventricular performance or enhanced systolic or diastolic load e.g. congestive heart failure, hypertension, dilated/hypertrophic cardiomyopathies is a real challenge. Currently used noninvasive methods fail giving quantitative measures to asses cardiac performa...

Use of tbe Left Ventricular Peak Systolic Pressure/End-Systolic Volume Ratio to Predict Symptomatic Improvement with Valve Replacement in Patients With Aortk Regurgitation and Enlarged End-Systolic Volume