Aging and the relationships between long-axis systolic and early diastolic excursion, isovolumic relaxation time and left ventricular length-Implications for the interpretation of aging effects on e`. [PDF]
PLoS One, 2019 Background Both the left ventricular (LV) long-axis peak early diastolic lengthening velocity (e`) and long-axis early diastolic excursion (EDExc) decrease with age, but the mechanisms underlying these decreases are not fully understood.
Peverill RE.
europepmc +4 more sources
Right Ventricular Myocardial Isovolumic Relaxation Time as Novel Method for Evaluation of Pulmonary Hypertension: Correlation with Endothelin-1 Levels [PDF]
Journal of the American Society of Echocardiography, 2007 Noninvasive assessment of pulmonary artery systolic pressure (PASP) has several limitations. Right ventricular (RV) isovolumic relaxation time (IVRT) is sensitive to changes in PASP. Blood pool-derived RV IVRT correlates well with PASP. However, because of complex parameter derivation, the method is rarely used. Endothelin (ET)-1 levels are elevated in
Ashraf A Dawood, Mohamed Fahmy Elnoamany
semanticscholar +4 more sources
Journal of the American College of Cardiology, 1990 Chunguang Chen +6 more
semanticscholar +4 more sources
The dependence of the time constant of left ventricular isovolumic relaxation (tau) on pericardial pressure. [PDF]
Circulation, 1990 The purpose of this study was to investigate the dependence of tau, the time constant of left ventricular (LV) isovolumic relaxation, on pericardial pressure and to compare values of tau as determined by the methods of previous investigators and by a standard exponential curve fit.
Eldon R. Smith +5 more
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Isovolumic relaxation intraventricular pressure difference predicts elevated left ventricular end-diastolic pressure in patients with coronary artery disease [PDF]
Scientific ReportsCurrent guideline for evaluating diastolic function requires multiple parameters to identify patients with elevated left ventricular end-diastolic pressure (LVEDP). However, the intermediate result still exists and may cause LVEDP undetermined.
Hongquan Lu +8 more
doaj +2 more sources
Diastolic And Systolic Right Ventricular Dysfunction Precedes Left Ventricular Dysfunction In Patients Paced From Right Ventricular Apex [PDF]
Indian Pacing and Electrophysiology Journal, 2006 Background: Cardiac dysfunction after right ventricular (RV) apical pacing is well known but its extent, time frame of appearance and individual effect on left ventricular (LV), RV systolic and diastolic parameters has not evaluated in a systematic ...
Dwivedi SK +7 more
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A Novel Noninvasive Method to Assess Left Ventricular −dP/dt Using Diastolic Blood Pressure and Isovolumic Relaxation Time [PDF]
Echocardiography, 2012 Rupal Parekh, Theodore J. Kolias
semanticscholar +3 more sources
Correction: Aging and the relationships between long-axis systolic and early diastolic excursion, isovolumic relaxation time and left ventricular length-Implications for the interpretation of aging effects on e`. [PDF]
PLoS One, 2019 Peverill RE.
europepmc +3 more sources
Japanese Circulation Journal, 1989 In order to determine whether isovolumic relaxation period (IRP) reflects left ventricular relaxation under different afterload conditions, 17 anesthetized, open chest dogs were studied, and the left ventricular pressure decay time constant (T) was calculated.
H. Ochi +5 more
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Analysis of Isovolumic Relaxation in Failing Hearts by Monoexponential Time Constants Overestimates Lusitropic Change and Load Dependence [PDF]
Circulation: Heart Failure, 2009 Hideaki Senzaki, David A. Kass
openalex +2 more sources