4 results
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
Pacemaker Placement ... Class II: • Mobitz ... • First degree AV ... arrest, prolonged PR ... of AV block -
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Treatment 2nd Degree, Mobitz ... . 2nd Degree, Mobitz ... • Block in AV ... beyond AV node) ... HeartBlocks #Types #Classification
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
PR interval ... aka Mobitz II) ... by a junctional pacemaker ... an infra-Hisian pacemaker ... electrocardiogram #classification
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Vaughan Williams Classification ... depolarization • ↑ PR ... interval to prolong AV ... velocity) - ↑ PR ... #Pharmacology #Classification