Eva Elina Buschmann

AP accessory pathway AV atrioventricular AVNRT atrioventricular nodal reentry tachycardia Bpm beats per minute ECG electrocardiogram OAVRB orthodromic atrioventricular reentry bradycardia OAVRT orthodromic atrioventricular reentry tachycardia VA ventriculo-atrial VCG vectorcardiogram 1 Introduction An accessory pathway (AP) is a strand of functional myocardial cells that connects the atrial and ventricular myocardium across the electrically insulating annulus fibrosus, thereby bypassing the...

Abstract The interatrial septum morphology, shaped by the septum primum and secundum fusion, results in the formation of the fossa ovalis (FO) and its limbus. Incomplete fusion can lead to a patent foramen ovale (PFO), while complete fusion may produce septal ridges and pouches (SPs), with SPs in humans linked to ischemic stroke and atrial arrhythmias. In horses, atrial tachycardia and fibrillation often originate near the FO.

3D EAM three-dimensional electro-anatomical mapping ACT activated clotting time AF atrial fibrillation AI ablation index AT atrial tachycardia CF contact force cTnI cardiac troponin I RF radiofrequency RFCA radiofrequency catheter ablation VCG vectorcardiogram 1 INTRODUCTION Atrial tachycardia (AT) is a supraventricular tachyarrhythmia characterized by a rapid atrial rhythm with identifiable P′ waves on the surface ECG.