9 results
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Summary of Heart Blocks ... • Prolonged PR ... • Treatment: Pacemaker ... • Treatment: Pacemaker ... HeartBlocks #Types #Classification
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
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
PR interval ... • During sinus ... by a junctional pacemaker ... an infra-Hisian pacemaker ... electrocardiogram #classification
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
Pacemaker Placement ... • Third degree block ... unclear origin • Sinus ... arrest, prolonged PR ... BrighamMedRes #Pacemaker
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
DANGER (2) Sinus ... Regular (1) Sinus ... 1º - long PR intervals ... successively longer PR ... - ventricular pacemaker
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 ... : • Sick Sinus ... /3rd degree AV Block ... • Pacemaker ... Differential #Diagnosis #Algorithm
Multifocal Atrial Rhythm vs Wandering Atrial Pacemaker
Mutifocal Atrial Rhythm / Multifocal Atrial Tachycardia:
Belong to a group
irregular PP and PR ... : VARIANT OF SINUS ... focus from the ... sinus node to latent ... electrocardiogram #comparison
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
Third Degree AV Block ... • In sinus rhythm ... • The PR interval ... by a junctional pacemaker ... an infra-Hisian pacemaker