Rafael Kuperstein

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BACKGROUND The purpose of this multicenter study was to determine the reliability of visual assessments of segmental wall motion (WM) abnormalities and global left ventricular function among highly experienced echocardiographers using contemporary echocardiographic technology in patients with a variety of cardiac conditions. METHODS The reliability of(More)
BACKGROUND Identification and quantification of segmental left ventricular wall motion abnormalities on echocardiograms is of paramount clinical importance but is still performed by a subjective visual method. We constructed an automatic tool for assessment of wall motion based on longitudinal strain. METHODS AND RESULTS Echocardiograms of 105 patients (3(More)
OBJECTIVES The aim of this study was to evaluate the significance of increased left atrial (LA) volume determined within the first 48 h of admission as a long-term predictor of outcome in patients with acute myocardial infarction (MI). BACKGROUND The LA volume reflects left ventricular (LV) diastolic properties. Whereas other LV Doppler diastolic(More)
OBJECTIVES The aim of this study was to evaluate whether certain post-Maze left atrial (LA) contractile profiles may pose a risk for ischemic stroke. BACKGROUND The mechanical contraction of the left atrium may be modified after the Maze procedure. Whether this imposes a risk for stroke, even in the presence of sinus rhythm and after removal of the LA(More)
Intravenous leiomyomatosis is a rare, benign neoplasm of the uterine, affecting adult women. We report two cases in whom intravenous leiomyomatosis extended through the inferior vena cava into the right heart chambers and the pulmonary artery. Both patients underwent staged operation with excision of the cardiac and primary tumour. The differential(More)
AIMS Peripartum cardiomyopathy (PPCM) is an infrequent form of cardiomyopathy causing significant maternal morbidity and mortality. We aimed to evaluate the risk factors, characteristics and prognosis of PPCM during the index and subsequent pregnancies. METHODS A retrospective cohort of 36 women with PPCM in a tertiary medical center was analyzed and(More)
The aim of the present study was to evaluate whether assessment of stroke volume index (SVI) can be used to improve risk stratification among patients with low-gradient severe aortic stenosis and preserved ejection fraction (EF). Study population comprised 409 patients with aortic valve area ≤1.00 cm(2), mean gradient <40 mm Hg, and a normal EF (≥50%) who(More)
One thousand fifty-one consecutive patients who had acute myocardial infarction were classified into 3 risk groups by 4 echocardiographic risk assessments: left ventricular ejection fraction, left ventricular filling pattern, estimated systolic pulmonary artery pressure, and mitral regurgitation, with 30-day mortality rates of 13.7%, 3.8%, and 1%,(More)
BACKGROUND Cardiac tumours are very uncommon and are the topic of little investigation. Imaging features offer reliable diagnostic evidence for cardiac tumours, but diagnostic confusion may arise when tumours with similar features are present. METHODS Between January 2003 and July 2008, 34 patients were operated on for cardiac tumours in this institute.(More)