title: The atrial T wave: The elusive electrocardiographic wave exposed by a case of shifting atrial pacemaker.
abstract: The atrial T wave (Ta wave) is the body surface manifestation of atrial repolarisation and, unlike the P wave (atrial depolarisation), is little recognised. We report the case of a patient with shifting pacemaker which clearly demonstrates the effect of the Ta wave on ST segment and T wave. A simple conceptual model is used to explain the observed phenomenon. The case serves as a reminder of this often forgotten ECG wave and its potential effects on other ECG features.
authors.affiliation: School of Engineering, University of Hull, Hull, UK. Electronic address: p.langley@hull.ac.uk.
authors.forename: Philip
authors.initials: P
authors.lastname: Langley
authors.affiliation: Hull & East Yorkshire NHS Trust and Hull York Medical School, Hull, UK.
authors.forename: Jane
authors.initials: J
authors.lastname: Caldwell
mesh_terms: D001283:Atrioventricular Node / Q000503:physiopathology*; D001683:Biological Clocks; D003198:Computer Simulation; D004562:Electrocardiography / Q000379:methods*; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008955:Models, Cardiovascular
keywords: Atrial Depolarisation; Atrial Repolarisation; Electrocardiogram; Pacemaker; Simple conceptual model