14 results
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
Causes of Tachycardia ... fibrillation • Multifocal ... atrial tachycardia ... aberrancy • Pacemaker-facilitated ... #Causes #cardiology
Multifocal Atrial Rhythm vs Wandering Atrial Pacemaker
Mutifocal Atrial Rhythm / Multifocal Atrial Tachycardia:
Belong to a group
Multifocal Atrial ... Pacemaker Mutifocal ... Multifocal Atrial ... Tachycardia: Belong ... #diagnosis #cardiology
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial ... Tachycardia (MAT ... ) • At least 3 ... #Atrial #Tachycardia ... #MAT #Cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Rhythm Abnormal Beats ... Conduction • Multifocal ... Atrial Tachycardia ... tachyarrhythmias #Cardiology ... #causes
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
block (3) Multifocal ... atrial tachycardia ... 200ms from longer pause ... - ventricular pacemaker ... electrocardiogram #cardiology
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
or CHF) - Treat ... underlying cause ... underlying cause ... #Treatment #management ... #cardiology #algorithm
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
flutter, or atrial ... sinus syndrome) • Multifocal ... atrial tachycardia ... valve prolapse • Pacemaker-mediated ... #Palpitations #Cardiology
Pacemaker Operating Modes
1 - Chamber paced
     A (atrium), V (ventricle), D (dual/both)
2
Pacemaker Operating ... allow the heart to beat ... tachycardia) Additional ... Pacing #settings #cardiology ... #management
Tachycardia - Differential Diagnosis and Management - Narrow vs Wide, Regular vs Irregular
Narrow - Regular:
Use P
Tachycardia - Differential ... • Atrial Flutter ... Each beat identical ... #cardiology #wide ... #narrow #algorithm
Pacemaker Timing Settings
 • Lower rate limit (50-60 bpm) - The lowest rate at which the
Pacemaker Timing ... allow the heart to beat ... tachycardia) ... Timing #Pacing #cardiology ... #management #settings