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Morphological Criteria for Discriminating Ventricular Tachycardia from Supraventricular Tachycardia with Aberration

Source Article: Wide Complex Tachycardia –
#Aberration #Aberrancy ... Distinguishing #Criteria #Cardiology ... #ECG #EKG #Electrocardiogram ... #Differences #Comparison ... #Brugada #Algorithm
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
- Differential Diagnosis ... Algorithm Narrow ... flutter • AV nodal ... #Algorithm #Causes ... #cardiology
Treatment of Stable Wide-Complex Tachycardia
Regular
 • If ventricular tachycardia or uncertain rhythm:
    -
known SVT with aberrancy ... - Avoid AV nodal ... agents (e.g., diltiazem ... #Treatment #management ... #cardiology #algorithm
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
- Differential Diagnosis ... Algorithm Bradyarrhythmia ... Escape Rhythm Abnormal ... with conduction aberrancy ... #Algorithm #causes
Algorithm for the Management of Ventricular Tachycardia Electrical Storm
ES diagnosed (≥ 3 episodes of VT/ICD therapies
Algorithm for the ... Storm ES diagnosed ... Polymorphic VT • Normal ... #Algorithm #Management ... #cardiology
Tachycardia - Differential Diagnosis and Management - Narrow vs Wide, Regular vs Irregular
Narrow - Regular:
Use P
Tachycardia - Differential ... Diagnosis and Management ... • DDx: SVT + Aberrancy ... #Management #cardiology ... #wide #narrow #algorithm
Myocarditis
Diagnosis 
• Endomyocardial biopsy (gold standard, rarely performed) 
• Clinical presentation 
• Cardiovascular MRI 
Clinical 
•
Myocarditis Diagnosis ... Unexplained sinus tachycardia ... summation gallop • Abnormal ... ECG, echocardiogram ... #Management #Cardiology
Multifocal Atrial Arrhythmias on ECG
Multifocal atrial rhythm & Multifocal atrial tachycardia
ECG Recognition:
 • Variable P wave
ECG Recognition ... waves will have normal ... QRS morphology (aberrant ... #cardiology #diagnosis ... #clinical #comparison
VT versus SVT with Aberration - Interpretation Cheat Sheet

Features favouring VT
● Absence of typical RBBB or
captured beats (normal ... Brugada algorithm ... SVT #Aberration #Aberrancy ... #Comparison #Diagnosis ... #Cardiology
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Control rate with AV nodal ... Control rate (e.g ... Control rate (e.g ... #Treatment #management ... #cardiology #algorithm