JACC. Cardiovascular imaging
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JACC Cardiovasc Imaging · Apr 2011
Historical ArticleAtherosclerosis in ancient Egyptian mummies: the Horus study.
The purpose of this study was to determine whether ancient Egyptians had atherosclerosis. ⋯ Atherosclerosis is commonplace in mummified ancient Egyptians.
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JACC Cardiovasc Imaging · Mar 2011
Echocardiographic predictors of adverse outcomes after continuous left ventricular assist device implantation.
The purpose of the study was to identify echocardiographic predictors of adverse outcome in patients implanted with continuous-flow left ventricular assist devices (LVAD). ⋯ The presence of either a relatively small left ventricle (<63 mm) or early systolic equalization of RV and right atrial pressure (short TRDc) demonstrated by echocardiography is associated with increased 30-day morbidity and mortality. Prediction of early adverse outcomes by echocardiographic parameters is additive to laboratory or hemodynamic variables.
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JACC Cardiovasc Imaging · Nov 2010
ReviewEchocardiography-guided biventricular pacemaker optimization.
Optimization of atrioventricular delay (AVD) and interventricular delay (VVD) in patients with a biventricular (Biv) pacemaker has been associated with improvement in cardiac output acutely, a reduction in heart failure symptoms, and improved exercise capacity. Several individual echocardiography (echo) Doppler parameters have been used for pacemaker optimization. ⋯ The goals of this paper are to discuss studies in echo-guided pacemaker optimization, provide a systemic guide to pacemaker interrogation and optimization in patients after Biv pacing who may have complex hemodynamic derangement, and finally, to discuss studies in optimization with exercise or atrial pacing. Case examples highlighting hemodynamic derangement in heart failure, tailoring of Biv pacemaker optimization to the underlying physiologic derangement, and its improvement with optimization are presented.
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JACC Cardiovasc Imaging · Nov 2010
Comparative StudyAn alternative isovelocity surface model for quantitation of effective regurgitant orifice area in mitral regurgitation with an elongated orifice application to functional mitral regurgitation.
The purpose of this study was to develop and test a simple, clinically practical alternative isovelocity surface (ISVS) model for calculating effective regurgitant orifice area (EROA) in mitral regurgitation (MR) when the regurgitant orifice is elongated, such as in functional MR. ⋯ The traditional spherical PISA model underestimates EROA in functional MR. For elongated MR orifices, an ISVS model that mirrors orifice shape yields more accurate EROA values. Correction to the ISVS area for obtuse leaflet angulation improves accuracy of EROA estimation.
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JACC Cardiovasc Imaging · Nov 2010
Letter Case ReportsReal-time 3D TEE for multiperforated interatrial septum.