OBJECTIVES To investigate the accuracy of measurement of the atrial septal defect (ASD)area and dynamic change by live three-dimensional echocardiography (L3DE). METHODS L3DE was performed in patients with ASD using a three-dimensional workstation to obtain the en face view of the ASD and measure its area at the peak of P-wave, the peak of R-wave, the initial and the destination point of T-wa...

Three-dimensional echocardiography (3DE) has become important in the management of patients with congenital heart disease (CHD), particularly with pre-surgical planning, guidance of catheter intervention, and functional assessment of the heart. 3DE is increasingly used in children because of good acoustic windows and the non-invasive nature of the technique. The aim of this paper is to provide ...

Correspondência: Vera Marcia Gimenes • Rua Coronel Oscar Porto, 569/31 – Paraíso 04003-002 São Paulo, SP, Brasil E-mail: [email protected], [email protected] Artigo recebido em 24/08/11, revisão recebido em 24/08/11, aceito em 24/08/11. A Terapia de Ressincronização Cardíaca (TRC) tem se mostrado eficaz concomitantemente ao tratamento com fármacos convencionais em pacientes refratários aos tratam...

almost 200 years after the initial descriptions of the cardiac involvement by Wells in 1812, and by Jean-Baptiste Bouillaud in 1836, rheumatic fever remains a significant challenge to those involved in providing health care.1 Although impressive data have been gathered by studies in several areas of investigation, all this knowledge has been unable to explain the pathogenesis of the condition. ...

BACKGROUND Measurements of left ventricular (LV) size, mass, and function are the most common and important tasks for echocardiography in clinical practice and research in children with congenital and acquired heart diseases. There are little data to compare the utility of M-mode (MM), 2-dimensional (2D), and 3-dimensional (3D) echocardiographic techniques for quantification of LV indices. The ...

INTRODUCTION Information on the changes of pulmonary function and the right cardiac structure in patients with coal worker's pneumoconiosis in China is very scarce. This study was performed to clarify the changes of pulmonary function and right cardiac structure in patients with coal worker's pneumoconiosis in China. MATERIAL AND METHODS Pulmonary function, pulmonary artery systolic pressure,...

Pulmonary ventilation and pulmonary arterial pressure both rise progressively during the first few hours of human acclimatization to hypoxia. These responses are highly variable between individuals, but the origin of this variability is unknown. Here, we sought to determine whether the variabilities between different measures of response to sustained hypoxia were related, which would suggest a ...

Transgenic mice displaying abnormalities in cardiac development and function represent a powerful new tool for understanding molecular mechanisms underlying normal cardiovascular function and the pathophysiological bases of human cardiovascular disease. Complete cardiac evaluation of phenotypic changes in mice requires the ability to noninvasively assess cardiovascular structure and function in...

Congenital abnormalities of the left atrioventricular (AV) valve are a significant diagnostic challenge. Traditionally, reliance has been placed on two-dimensional echocardiographic (2DE) imaging to guide recognition of the specific morphological features. Real-time 3DE can provide unique views of the left AV valve with the potential to improve understanding of valve morphology and function to ...

Background: Strenuous and endurance exercise training have been associated with morphological and functional heart remodeling. Two-dimensional speckle-tracking echocardiography (STE) is a novel technique that allows an accurate quantification of global myocardium deformation. Our aim was to evaluate together left and right cardiac remodeling in different long-distance running athletes: marathon...