<<forEachTiddler where 'tiddler.tags.contains(context.inTiddler.title)' sortBy tiddler.title ascending write '"*[["+tiddler.title+"]]\n"'>> <<tiddler AutoRefresh with: force>> Congenital accessory conduction path between atria and ventricles so Atrioventricular re-entry tachycardia AF can degenerate to VF (as accessory path doesn't slow conduction) this is inc by sotalol which slows AV conduction so avoid if AF present ''ECG change (possible)'' short PR wide QRS with slurred upstroke (delta wave) non-specific ST and T changes (don't confuse with ischaemia) if R pathway - L axis deviation (type B) - no dominant R wave in V1 - more common if L pathway - R axis deviation (type A) - dominant R wave in V1 ''Associations'' HOCM Mitral valve prolapse Ebsteins anomaly Thyrotoxicosis secundum ASD ''Mx'' radiofrequency ablation of accessory path (definitive) medical - sotalol, amiodarone, flecainide