184 results
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
through SA Node, Atrium ... • Atrial Tachycardia ... • Atrial Flutter ... • Atrial Fibrillation ... SVT #diagnosis #cardiology
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Atria: Premature ... Atrial Contractions ... (PACs), Atrial ... Flutter (AFL), Atrial ... Diagnosis #Causes #cardiology
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Atrial fibrillation ... Multifocal Atrial ... Atrial flutter ... (Ectopic) Atrial ... diagnosis #causes #cardiology
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
ST elevation in ACS ... diagnosis includes ACS ... aVR instead of ACS ... #leadAVR #ecg #electrocardiogram ... #differential #cardiology
The electrocardiogram in the ACS patient: high-risk electrocardiographic presentations lacking anatomically oriented ST-segment elevation

#Diagnosis #Cardiology #ECG
The electrocardiogram ... in the ACS patient ... #Diagnosis #Cardiology
Progression of EKG changes in ACS
 • Hyperacute T waves
 • ST depression and T waves
EKG changes in ACS ... Progression #EKG #ACS ... #ECG #electrocardiogram ... #Timeline #cardiology
Classic Digoxin-Associated Arrhythmias
 • Atrial fibrillation with an unusually slow ventricular response
 • Atrial Fibrillation with
Arrhythmias • Atrial ... Tachycardia with ... Bidirectional Ventricular Tachycardia ... Arrhythmias #diagnosis #cardiology ... #ecg #ekg #electrocardiogram
Multifocal Atrial Tachycardia (MAT) on EKG
 • Heart rate > 100 bpm (usually 100-150 bpm)
 •
Multifocal Atrial ... Tachycardia (MAT ... MAT #Multifocal #Atrial ... #cardiology #EKG ... #ECG #Electrocardiogram
Comparison of Multifocal Atrial Tachycardia, Atrial Fibrillation and Atrial Flutter
Multifocal Atrial Tachycardia - Atrial Rate >
of Multifocal Atrial ... Tachycardia, Atrial ... Tachycardia - Atrial ... Comparison #Diagnosis #Cardiology ... #Electrocardiogram
Sinus Tachycardia - Differential Diagnosis Framework
Autonomic System:
 • Excess Stimulation: Nicotine, Caffeine, Sympathomimetics, Anticholinergics
 • Withdrawal:
Sinus Tachycardia ... • Cardiogenic: ACS ... Inappropriate Sinus Tachycardia ... SCVMCMed #Sinus #Tachycardia ... Differential #Diagnosis #cardiology