24 results
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
3 different P wave ... retrograde) - AVNRT ... , AVRT, Junctional ... #differential #diagnosis ... #causes #cardiology
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
the atria and ventricles ... EKG of the same ... are enough to diagnose ... #AVNRT #PhysicalExam ... #JVP #Cardiology
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial ... Tachycardia (MAT ... 3 different P wave ... #Cardiology #Diagnosis ... #ECG #EKG #Management
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... aVR • Classic EKG ... , atrial tachycardia ... #AVR #leadAVR #ecg ... #ekg #differential
Multifocal Atrial Tachycardia (MAT) on EKG
 • Heart rate > 100 bpm (usually 100-150 bpm)
 •
) on EKG • Heart ... At-least 3 distinct P-wave ... #Tachycardia #diagnosis ... #cardiology #EKG ... #ECG #Electrocardiogram
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Caused by atrial ... activation from SVT (e.g ... 2LmUODZ #Cannon #AWaves ... #diagnosis #cardiology ... #CVP
Supraventricular Tachycardia EKG

Here’s a great ECG case of a 50-year-old lady who presented with palpitations

Her heart
EKG Here’s a ... great ECG case of ... @EM_RESUS #AVRT ... #EKG #ECG #Electrocardiogram ... #Cardiology #EKG
Cannon A Waves on Neck Examination

Cannon a waves! Notice that it occurs randomly, not predictably w/
for DDI and an atrial ... tachycardia much ... #Neck #PhysicalExam ... #JVP #Clinical ... #Video #Cardiology
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Converts - Probably AVnRT ... Control rate (e.g ... Treat underlying cause ... Control rate (e.g ... Treatment #management #cardiology
Abnormal Jugular Venous Pressure Waveforms - Differential Diagnosis
 - Absent a wave - Atrial fibrillation, sinus
- Differential Diagnosis ... , sinus tachycardia ... Jugular #Waveforms #JVP ... #PhysicalExam # ... cardiology