3 results
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
Pacemaker Placement ... Class II: • Mobitz ... arrest, prolonged PR ... • Reversible causes ... BrighamMedRes #Pacemaker
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Vaughan Williams Classification ... depolarization • ↑ PR ... velocity) - ↑ PR ... #Pharmacology #Classification ... #Classes #pathophysiology
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
twitching CARDIAC CAUSES ... or sinus node dysfunction ... Nonarrhythmic Cardiac Causes ... valve prolapse • Pacemaker-mediated ... NON-CARDIAC CAUSES