10 results
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
Pacemaker Placement ... with syncope • ... unclear origin • Sinus ... arrest, prolonged PR ... BrighamMedRes #Pacemaker
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Syncope - Differential ... Diagnosis Algorithm ... : • Sick Sinus ... /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 ... The P wave and PR ... presence of AV block ... Wandering Atrial Pacemaker ... several cycle the 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
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 ... atrioventricular #blocks #AVBlock
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
4 Variants of Sinus ... The P wave and PR ... presence of AV block ... Wandering Atrial Pacemaker ... several cycle the pacemaker
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
• In sinus rhythm ... • The PR interval ... by a junctional pacemaker ... an infra-Hisian pacemaker ... ThirdDegree #3rd #AVBlock
Pacemaker Indications
Class I
 • Symptomatic sinus node dysfunction
 • 3° AV or type 2 2° AV
Pacemaker Indications ... • Symptomatic sinus ... • Syncope of ... etiology with sinus ... EricsMedicalLectures/featured #Pacemaker
Causes of Syncope - Differential Diagnosis Algorithm
Cardiac - Arrhythmia:
 • Tachyarrhythmia
 • Bradyarrhythmia
 • Supraventricular Tachycardia
Differential Diagnosis Algorithm ... Tachycardia • Sick-Sinus ... Atrioventricular Block ... Volume • Carotid Sinus ... Differential #Diagnosis #Algorithm
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
with variable block ... atrioventricular block ... valve prolapse • Pacemaker-mediated ... consciousness • Near-syncope ... , or syncope: Hemodynamically