<<forEachTiddler where 'tiddler.tags.contains(context.inTiddler.title)' sortBy tiddler.title ascending write '"*[["+tiddler.title+"]]\n"'>> <<tiddler AutoRefresh with: force>> Types of heart block First degree heart block PR interval > 0.2 seconds Second degree heart block type 1 (Mobitz I, Wenckebach): progressive prolongation of the PR interval until a dropped beat occurs type 2 (Mobitz II): PR interval is constant but the P wave is often not followed by a QRS complex Third degree (complete) heart block there is no association between the P waves and QRS complexes ''Complete heart block Features'' syncope heart failure regular bradycardia (30-50 bpm) wide pulse pressure JVP: cannon waves in neck variable intensity of S1