• Two features of A-V transmission previously attributed to a dual conduction system; namely, "abnormal" delay in the A-V propagation of early premature atrial responses, and alteration of the configuration of the corresponding ventricular electrograms, have been adequately explained as due to aberrant conduction within the intraventricular conduction system,and more specifically as the result ...

We report a rare successful surgical repair of a common atrium (CA) with mild tricuspid valve (TV) regurgitation due to valvular annulus enlargement in a 39-year-old man, who had a complete atrial septum defect (ASD) without the characteristic of an endocardial cushion defect. The left-to-right shunt ratio was 85 percent and the Qp/Qs was 6.7 due to the CA. Left ventriculogram revealed no evide...

Lewis lead recording was done (Figure 2). The Lewis lead was developed by Thomas Lewis to obtain the most prominent atrial activity in atrial fibrillation, and recording was done as follows: a bipolar chest lead was used, with the right arm electrode applied to the right side of the sternum at the second intercostal space and the left arm electrode applied to the right side of the sternum at th...

Background: Mechanical occlusion of the Left atrial appendage (LAA) using a purpose-built device has emerged as an effective prophylactic treatment in patients with atrial fibrillation at risk of stroke and a contraindication for anticoagulation. A crucial step in procedural planning is the choice of the device size. This is currently based on the manual analysis of the “Device Landing Zone” fr...

conclusions pci was accompanied by some improvement in left atrial deformation indices as assessed by tissue doppler imaging. revascularization can, therefore, improve patient outcome. results regarding changes in left trial functional parameters after pci, those such as the strain of the septal wall and the anterior and inferior walls and the strain rate of the anterior and lateral walls signi...

propene dissociation channels were characterized by ab initio ccsd(t)/6-311++g(d,p) calculations. inthis work the detailed mechanism of propene dissociation to c2h4+ch2, c2h2+h+ch3, c2h2+ch4 andc3h3+h2+h have been investigated. according to our calculations, ten fragments can be classified intofive dissociated channels. our results point out that two mechanisms come into play in the h2 eliminat...

background: alcohol consumption has multiple side effects on heart which can be divided to six subgroups: heavy alcohol drinkers (80 g/day alcohol consumption) are most susceptible to cardiac complications. the aim of this study was to review alcohol side effects on heart and two present two alcoholic patients with alcoholic cardiomyopathy. case report: case a: a 52 year-old man presented with ...