Translocation of the atrial septum

Translocation of the atrial septum.

Intra-uterine closure of the atrial septum.

Two newborn babies with an intact atrial septum are described. In one, the two components of the atrial septum appeared to have become fused after relatively normal initial development; the left side of this heart was hypoplastic. In the other baby the formation of the atrial septum appeared to have been completely anomalous; this heart showed mitral atresia, absence of the left ventricle, and ...

Development and structure of the atrial septum.

Most cardiologists would probably consider that, during their training, they had received appropriate instruction concerning the mode of development and structure of the atrial septum. This is likely to be founded on the diagrams that exist in most standard textbooks of cardiac embryology. These illustrate the formation of primary and secondary atrial septums as overlapping muscular sheets that...

The normal and abnormal inter-atrial septum.

This paper is an elementary study of the normal and abnormal inter-atrial septum and an attempt to clarify the nomenclature and classification of the various kinds of septa on embryological grounds. During foetal life, the left ventricle receives almost no blood from the lungs, and must therefore get it from the vene cave via the common atrium, if it is to perform any work to help in its proper...

Focal Atrial Tachycardia Surrounding the Anterior Septum

F ocal atrial tachycardias (ATs) surrounding the region of the anterior atrial septum (AAS) and their characteristic P waves, electrophysiological characteristics and catheter abla-tion results have been the subject of previous reports. 1–10 The close proximity to the atrioventricular (AV) node and the complex anatomy of this region continue to pose challenges during catheter ablation, and alth...