The case of a 16-year-old patient with atrioventricular tachycardia caused by a single left anterolateral accessory pathway is reported. When the patient underwent radiofrequency ablation, a lesion on the mitral annulus lateral wall produced changes in the retrograde atrial activation pattern determined by that pathway; changes ranged from a delay in depolarization of the annulus posterior port...

myocardial infarction using Doppler echocardiography provides important prognostic information.1,2 Evaluating left atrium volume is a good way to estimate prognosis in patients with acute myocardial infarction as it indicates time and severity of diastolic dysfunction and longer term results of acute myocardial infarction.3,4 The present study evaluated the effect of left atrium volume on patie...

A 67-year-old woman had progressive dyspnea, a loud murmur of mitral regurgitation, and a separate, continuous cardiac murmur suggesting shunt. Electrocardiographygated computed tomography demonstrated a 7-cm aneurysm of the left main coronary artery with possible connection to the right atrium (Figure, A), along with a thin tissue boundary between the aneurysm (Figure, B) and left atrium, rais...

The building atrium is a large space formed by integrating various functions. It runs through multiple floors and directly or indirectly connected with each floor. In the atrium, people can not only enjoy air quality of interior but also create an open natural environment characteristic outdoor space. this paper, winding corridor research object, using CFD simulation software to establish mathe...

In blood-perfused isolated canine atrium preparations, single injections of dibutyryl cyclic AMP at a dose range of 1 to 30 mg were made into the cannulated sinus node artery. At doses above 3 mg, dibutyryl cyclic AMP induced a biphasic chronotropic and inotropic response; there was a slight and rapid negative chronotropic and inotropic response, followed by a long-lasting positive chronotropic...

Cor triatriatum sinister is a rare congenital cardiac anomaly with an incidence of between 0.1 and 0.4% [1,2] whereby the left atrium is functionally and anatomically divided into two separate chambers by a thin membrane. Although there are a limited number of reports of successful ablation of left atrial focal tachycardia and simple pulmonary vein isolation in individuals with cor triatriatum ...

To cite: Thompson AT, Desai A, Ford SJ, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2016218234 DESCRIPTION A 40-year-old woman under investigation for a pelvic mass presented following a syncopal episode. A large fibroid-like pelvic mass and venous thrombus, extending from the left gonadal vein into the inferior vena cava and right atrium, were noted on...

O riginally described for the treatment of tricuspid atresia, the concept of ventricular exclusion and direction of systemic venous blood from the right atrium immediately into the pulmonary artery has been applied to a variety of forms of single ventricle. Theoretically, this operation should eliminate the right-to-left shunt and decrease the volume of systemic ventricular blood flow. Fontan's...

Extracorporeal membrane oxygenation (ECMO) can support neonates with severe respiratory failure. Currently, the most common application of ECMO requires venoarterial access. Venovenous (VV) ECMO is desirable to avoid common carotid artery ligation. However, the best technique of venous access for VV ECMO is not established. Using a single cannula with a double-lumen (DLC) in the right atrium fo...

Atrial fibrillation is a wide spread heart arrhythmia that can be treated by catheter ablation. This procedure may involve a planning step which can be performed based on a 3-D model of the patient’s left atrium (LA) segmented from a CT or MRI volume. One of the first decisions to make during treatment is whether to use a single-shot device or a radio-frequency catheter. This decision is based ...