Incessant Long R-P Tachycardia

Publication date: Available online 12 January 2016 Source:Cardiac Electrophysiology Clinics Author(s): Bernard Abi-Saleh, Marwan M. Refaat, Fadi F. Bitar, Maurice Khoury, Mariam ArabiTeaser A 13-year-old boy had a positive P wave in V1 with a negative P wave in lead I, aVL, and aVR, as well as a positive P wave in the inferior leads, which correlated with a left atrial appendage (LAA) atrial tachycardia (AT) focus. P-wave morphologies can provide clues regarding an AT’s origin, and this P-wave negative in lead I favored LAA AT. Careful mapping along the atria and coronary sinus to determine the earliest site of activation for the surface P wave is a reliable method for precisely localizing the AT origin as a target for catheter ablation.
Source: Cardiac Electrophysiology Clinics - Category: Cardiology Source Type: research