Weidong Ren

Learn More
BACKGROUND Fetal interrupted aortic arch (IAA) is a rare cardiac anomaly and its prenatal diagnosis is challenging. The purpose of our report is to evaluate the use of two-dimensional echocardiography (2DE) and 4D echocardiography with B-flow imaging and spatiotemporal image correlation (4D BF-STIC) in detecting IAA type A (IAA-A). MATERIALS & METHODS(More)
The effect of atrial fibrillation on pulmonary venous flow patterns is still not well known. Twenty-four patients in atrial fibrillation and 21 patients in sinus rhythm were studied by transoesophageal echocardiography. In ninety-five percent (20/21) of sinus rhythm patients, the early systolic wave due to atrial relaxation or reverse wave due to atrial(More)
Left atrial (LA) function plays an important role in the maintenance of cardiac output. However, whether assessment of regional LA myocardial dysfunction is useful for differentiating between CP and restrictive cardiomyopathy (RCM) remains unclear. Thirty-five patients with CP, 30 patients with RCM, and 30 healthy volunteers (controls) were enrolled in this(More)
A number of case–control studies have been conducted to investigate the relationship between the ATP-binding cassette transporter A1 (ABCA1) gene polymorphisms and risk of coronary heart disease (CHD). However, the results have been inconclusive. The purpose of the present study is to investigate whether this polymorphism confers significant susceptibility(More)
Temporal relations of atrial fibrillation and congestive heart failure and their joint influence on mortality: the Framingham Heart Study. Mortality trends in patients diagnosed with first atrial fibrillation: a 21-year community-based study. Incident stroke and mortality associated with new-onset atrial fibrillation in patients hospitalized with severe(More)
From 71 consecutive patients with paracardiac neoplastic masses who underwent transesophageal echocardiography (TEE), obstruction of individual right upper pulmonary venous flow by compression by contiguous mass was detected by TEE in 4 patients before and disappeared after anti-neoplastic treatments. Pulmonary vein, contiguous neoplastic mass and their(More)
BACKGROUND Left ventricular diastolic function is impaired during pregnancy. However, changes in left atrial (LA) function remain unclear. We aimed to evaluate changes in LA function during pregnancy using two-dimensional speckle tracking echocardiography (2DSTE). METHODS AND RESULTS 50 pregnant and 50 healthy nulliparous (control group) women were(More)
OBJECTIVE The purpose of our report is to evaluate the use of color Doppler echocardiography (CDE) with four chamber view (4CV), scanning around left atrium, and four-dimensional echocardiography with B-flow imaging and spatiotemporal image correlation (4D BF-STIC) in detecting fetal pulmonary veins at 17 to 40 weeks' gestation. METHODS This was a(More)
BACKGROUND Although pulmonary artery systolic pressures (PASPs) are frequently measured in newborn infants using the tricuspid regurgitant jet velocity or ductal Doppler velocity, little is known about the reference range in the general population. METHODS This was a retrospective study of 296 neonates less than 14 days of age who were evaluated using(More)
Myxomas are the most common primary cardiac tumor, and neovascularization of cardiac myxoma has been shown in previous case reports. However, it is seldom reported that abnormal blood flow spurted from a neovascularized myxoma into the cardiac chamber. In this unusual case report, we present a left atrial myxoma in a 44-year-old woman with atypical angina.(More)