9 results
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
1st Degree Heart Block ... Mobitz I Heart Block ... Complete Heart Block ... • Block in AV ... HeartBlocks #Types #Classification
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
Pacemaker Placement ... • Third degree block ... or 3rd degree block ... arrest, prolonged PR ... of AV block -
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
PR interval ... There is constant PR ... by a junctional pacemaker ... an infra-Hisian pacemaker ... electrocardiogram #classification
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... : • MOA: Block ... : • MOA: Block ... primarily) and block ... : • MOA: Block
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
: • MOA: Block ... : • MOA: Block ... primarily) and block ... : • MOA: Block ... velocity) - ↑ PR
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
The P wave and PR ... presence of AV block ... Wandering Atrial Pacemaker ... several cycle the pacemaker ... variants #clinical #comparison
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Differential Diagnosis Algorithm ... /3rd degree AV Block ... • Pacemaker ... Differential #Diagnosis #Algorithm ... #causes
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
The P wave and PR ... presence of AV block ... Wandering Atrial Pacemaker ... several cycle the pacemaker ... variants #clinical #comparison
This infographic provides a mnemonic tool called “WOBBLER” for assessing an ECG (electrocardiogram) in cases of
electrocardiogram) in cases ... of the ECG to focus ... first-degree AV block ... : Bifascicular Block ... A bifascicular block