12 results
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
VT: - No RS complexes ... - Very broad complexes ... Fusion beats - a sinus ... VT #VTach #SVT #Comparison ... cardiology #diagnosis #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
4 Variants of Sinus ... encompassing a QRS complex ... intervening QRS complex ... diagnosis #ekg #ecg #electrocardiogram ... variants #clinical #comparison
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
Causes of Tachycardia ... Differential Diagnosis Algorithm ... - Regular: • Sinus ... Differential #Diagnosis #Algorithm ... #Causes #cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Differential Diagnosis Algorithm ... (<60 bpm) • Sinus ... Bradycardia • Sick Sinus ... Differential #Diagnosis #Algorithm ... #causes
VT versus SVT with Aberration - Interpretation Cheat Sheet

Features favouring VT
● Absence of typical RBBB or
beats (normal sinus ... beats (hybrid complex ... of normal sinus ... Brugada algorithm ... Aberration #Aberrancy #Comparison
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Vaughan Williams Classification ... • Widens QRS complex ... cells • Slows sinus ... cells • Slow sinus ... #Classes #cardiology
Morphological Criteria for Discriminating Ventricular Tachycardia from Supraventricular Tachycardia with Aberration

Source Article: Wide Complex Tachycardia –
Article: Wide Complex ... Cardiology #ECG #EKG #Electrocardiogram ... #Differences #Comparison ... #Brugada #Algorithm
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
4 Variants of Sinus ... encompassing a QRS complex ... intervening QRS complex ... diagnosis #ekg #ecg #electrocardiogram ... variants #clinical #comparison
EKG in Acute Pulmonary Embolism
The sensitivity and specificity for EKG findings in acute PE are low.
EKG
evaluating for other causes ... Adrenergic Drive: • Sinus ... Incomplete or Complete ... diagnosis #cardiology #electrocardiogram
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
Block • During sinus ... Heart Block • In sinus ... or slowing of sinus ... ecg #diagnosis #electrocardiogram ... #classification