The peculiar shape of the right ventricle (RV), its position within the chest, and the thinness of its free wall have always represented a formidable challenge for the assessment of RV size and function by conventional 2-dimensional echocardiography. Over time, a large number of 2D echocardiography and Doppler parameters have been proposed to describe RV geometry and function. However, most of ...

BACKGROUND Right ventricular (RV) diastolic function has been associated with outcomes for patients with pulmonary hypertension; however, the relationship between biomechanics and hemodynamics in the right ventricle has not been studied. METHODS AND RESULTS Rat models of RV pressure overload were obtained via pulmonary artery banding (PAB; control, n=7; PAB, n=5). At 3 weeks after banding, RV...

OBJECTIVES The aim of this study was to assess the utility of tissue Doppler echocardiography in the setting of repaired transposition of the great arteries when the right ventricle (RV) functions as the systemic ventricle. BACKGROUND Myocardial acceleration during isovolumic contraction, "isovolumic myocardial acceleration" (IVA), has been validated as a sensitive non-invasive method of asse...

Right ventricular dysfunction is one of the more common causes of heart failure in patients with congenital heart defects. Use of computer-assisted procedures is becoming more popular in clinical decision making process and computer-aided surgeries. A 3D in vivo MRI-based RV/LV combination model with fluid-structure interaction (FSI), RV-LV interaction, and RV-patch interaction was introduced t...

Copyright © 2013, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran; Licensee Safnek Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is...

OBJECTIVES We sought to determine the impact of pregnancy on the systemic right ventricle (RV) after a Mustard operation for transposition of the great arteries. BACKGROUND Dysfunction of the RV remains a continuing problem after a Mustard operation. Concerns exist about the potentially deleterious effects of pregnancy on this ventricle. METHODS The records of 16 women who completed 28 preg...

Despite much improvement in the outcomes of patients undergoing implantation with left ventricular assist devices (LVADs), right ventricle (RV) failure remains a challenging clinical dilemma, particularly perioperatively as a significant cause of morbidity and mortality (1). In the patient freshly implanted with an LVAD, the RV becomes the limiting step to increase forward cardiac output. With ...

Background Patients who undergo surgical repair of Tetralogy of Fallot (TOF) often experience abnormal remodeling of the right ventricle (RV), notably with chamber dilatation and associated dysfunction. The ideal surgical technique is controversial, but RV outflow tract repair utilizing a transannular patch (TAP) is employed to overcome the RV outflow tract obstruction in many patients with TOF...

Background Mechanics of the left ventricle (LV) are important indicators of cardiac function. The role of right ventricular (RV) mechanics is unknown due to the technical limitations of imaging its thin wall and complex geometry and motion. By combining 3D Displacement Encoding with Stimulated Echoes (DENSE) with a local coordinate system analysis, it is possible to quantify RV strain, torsion,...

Background Movement abnormalities in the left ventricle (LV) were shown to be not really frequent in thalassemia major (TM) patients but they were associated with age, myocardial iron overload, LV dilation and dysfunction, and myocardial fibrosis. No data are available about the prevalence and the correlates of right ventricular (RV) wall motion abnormalities. This study investigated the relati...