10 results
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
Pacemaker Placement ... induced 2nd or 3rd ... unclear origin • Sinus ... BrighamMedRes #Pacemaker ... #Indications #PPM
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
• During sinus ... • In sinus rhythm ... by a junctional pacemaker ... an infra-Hisian pacemaker ... electrocardiogram #classification
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Differential Diagnosis Algorithm ... Syndrome • SA Block ... • AV Block (ISt ... /2nd /3rd degree ... Differential #Diagnosis #Algorithm
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Summary of Heart Blocks ... • Treatment: Pacemaker ... 3rd Degree, Complete ... • Treatment: Pacemaker ... HeartBlocks #Types #Classification
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
Third Degree AV Block ... • In sinus rhythm ... by a junctional pacemaker ... an infra-Hisian pacemaker ... #ThirdDegree #3rd
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Differential Diagnosis Algorithm ... : • Sick Sinus ... Node) • 2nd/3rd ... degree AV Block ... • Pacemaker
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
4 Variants of Sinus ... normal • The PP ... presence of AV block ... Wandering Atrial Pacemaker ... several cycle the pacemaker
Pacemaker Indications
Class I
 • Symptomatic sinus node dysfunction
 • 3° AV or type 2 2° AV
Pacemaker Indications ... • Symptomatic sinus ... or type 2 2° AV block ... etiology with sinus ... #PPM #indications
LAD
IWMI
LAHB
RAD
[PHB
RVH
Lateral wall infarct
Lead reversal
Dextrocardia
Wide ORS
RBBB - terminal delay
[BBB
IVED
WPW = delta wave
Hyperkalemia
Type l antiarrhythmic drugs
Pacemaker
ST elevation
Early repolarization
antiarrhythmic drugs Pacemaker ... Septal hypertrophy Sinus ... pause Sinus arrest ... SA block Nonconducted ... STdepression #Ischemia #DigEffect
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
4 Variants of Sinus ... normal • The PP ... presence of AV block ... Wandering Atrial Pacemaker ... several cycle the pacemaker