Background—Undersized ring annuloplasty for ischemic mitral regurgitation (MR) is associated with variable results and 30% MR recurrence. We tested whether subvalvular repair by severing second-order mitral chordae can improve annuloplasty by reducing papillary muscle tethering. Methods and Results—Posterolateral myocardial infarction known to produce chronic remodeling and MR was created in 28...

BACKGROUND Mitral regurgitation (MR) is common in patients with dilated cardiomyopathy (DCM). It is unknown whether the criteria for MR classification are inadequate for patients with DCM. OBJECTIVE We aimed to evaluate the agreement among the four most common echocardiographic methods for MR classification. METHODS Ninety patients with DCM were included. Functional MR was classified using ...

BACKGROUND Mitral regurgitation (MR) is frequently reported in everyday echocardiograms; accurate assessment is essential for appropriate management and decision making. OBJECTIVE We performed a self-audit in order to define the prevalence and pattern of MR and to evaluate methods of assessment with the perspective of developing a quality improvement project. METHODS AND SETTING This retros...

BACKGROUND Analysis of procedural effects in patients undergoing percutaneous mitral valve repair (PMVR) using the edge-to-edge technique is complex, and common methods to define mitral regurgitation severity based on 2-dimensional (2D) echocardiography are not validated for postprocedural double-orifice mitral valve. This study used 3D transesophageal echocardiography (TEE) to determine the fu...

BACKGROUND Undersized ring annuloplasty for ischemic mitral regurgitation (MR) is associated with variable results and >30% MR recurrence. We tested whether subvalvular repair by severing second-order mitral chordae can improve annuloplasty by reducing papillary muscle tethering. METHODS AND RESULTS Posterolateral myocardial infarction known to produce chronic remodeling and MR was created in...

AIMS The effect of right ventricular (RV) pacing on tricuspid regurgitation (TR) is debatable and is presumed to be related to an interference with valve closure by the electrode. The aim of the study was to determine the impact of pacing per se on TR grade. METHODS AND RESULTS The study group included 23 clinically stable patients (13 males; mean age 78 +/- 12 years) with a permanent pacemak...

3D color Doppler echocardiography has recently been employed to evaluate 3D proximal isovelocity surface area (PISA) and vena contracta (VC) area measures of regurgitant valve severity. Computational fluid dynamics (CFD) modeling may provide insight into the strengths and limitations of emerging 3D color Doppler applications for the quantification of mitral regurgitation (MR). The objective of ...