Circulation. Cardiovascular imaging
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Circ Cardiovasc Imaging · Sep 2013
Comparative StudyNoninvasive assessment of pulmonary hemodynamics in patients with chronic thromboembolic pulmonary hypertension by high temporal resolution phase-contrast MRI: correlation with simultaneous invasive pressure recordings.
Right heart catheterization is the gold standard for assessment of pulmonary hemodynamics in patients with chronic thromboembolic pulmonary hypertension. To date, MRI has not been able to produce precise measurements of mean pulmonary arterial pressure (mPAP). The purpose of the study was to create a model for estimating mPAP and pulmonary vascular resistance in patients with chronic thromboembolic pulmonary hypertension by high temporal resolution phase-contrast MRI (PC-MRI) and to correlate the results with simultaneously acquired, invasive catheter-based measurements (simultaneously measured mPAP) and with right heart catheterization measurements. ⋯ PC-MRI-derived parameters enable noninvasive assessment of pulmonary hemodynamics in patients with chronic thromboembolic pulmonary hypertension.
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Circ Cardiovasc Imaging · Jul 2013
Randomized Controlled TrialEchocardiographic assessment of cardiac valvular regurgitation with lorcaserin from analysis of 3 phase 3 clinical trials.
Lorcaserin is a selective 5-HT2C agonist evaluated for weight management in clinical trials. Echocardiographic monitoring was conducted to test the hypothesis that selective 5-HT2C agonism would avoid valvular heart disease. ⋯ URL: http://www.clinicaltrials.gov. Unique identifiers: NCT00395135, NCT00603291, NCT00603902.
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Circ Cardiovasc Imaging · Jul 2013
Randomized Controlled Trial Multicenter StudyPercutaneous mitral valve repair in the initial EVEREST cohort: evidence of reverse left ventricular remodeling.
Percutaneous repair of mitral regurgitation (MR) permits examination of the effect of MR reduction without surgery and cardiopulmonary bypass on left ventricular (LV) dimensions and function. The goal of this analysis was to determine the extent of reverse remodeling at 12 months after successful percutaneous reduction of MR with the MitraClip device. ⋯ URL: http://www.clinicaltrials.gov. Unique identifiers: NCT00209339, NCT00209274.
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Circ Cardiovasc Imaging · Jul 2013
Multicenter StudyEchocardiographic features defining right dominant unbalanced atrioventricular septal defect: a multi-institutional Congenital Heart Surgeons' Society study.
Definition and management of right dominant unbalanced atrioventricular septal defect (AVSD) remains challenging because unbalance entails a spectrum of left heart hypoplasia. Previous work has highlighted atrioventricular valve (AVV) index as a reasonable defining echocardiographic measure. We sought to assess which additional echocardiographic features might provide further characterization. ⋯ The angle of right ventricle/LV inflow and other surrogates of inflow may be important defining echocardiographic measures of right dominant unbalanced AVSD, although confirmation is needed.