28 results
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial ... Tachycardia (MAT ... 3 different P wave ... #MAT #Cardiology ... #Diagnosis #ECG
Multifocal Atrial Tachycardia (MAT) on EKG
 • Heart rate > 100 bpm (usually 100-150 bpm)
 •
Multifocal Atrial ... Tachycardia (MAT ... At-least 3 distinct P-wave ... #Atrial #Tachycardia ... #diagnosis #cardiology
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Multifocal Atrial ... Tachycardia (MAT ... 3 different P wave ... #differential #diagnosis ... #causes #cardiology
Cannon A Waves in AVNRT on Neck Physical Exam

69 year old female patient comes with a
s the clinical sign ... shown , what’s the diagnosis ... EMdoc14 #CannonA #AWaves ... #AVNRT #Neck #PhysicalExam ... #JVP #Cardiology
Cannon A Waves on Neck Examination

Cannon a waves! Notice that it occurs randomly, not predictably w/
and an atrial tachycardia ... VivekKulkarniMD #CannonA #AWaves ... #Neck #PhysicalExam ... #JVP #Clinical ... #Video #Cardiology
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
EKG of the same ... are enough to diagnose ... the case as Typical ... #AVNRT #PhysicalExam ... #JVP #Cardiology
Giant A waves caused by pulmonary HTN. There are two clearly discernible descents (X and Y)
Giant A waves caused ... has Kussmaul's sign ... the underlying diagnosis ... amzn.to/2LmUODZ #AWaves ... #Neck #PhysicalExam
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
Multifocal Atrial Arrhythmias on ECG
Multifocal atrial rhythm & Multifocal atrial tachycardia
ECG Recognition:
 • Variable P wave
Arrhythmias on ECG ... atrial tachycardia ... ECG Recognition ... atrial #rhythm #tachycardia ... #cardiology #diagnosis
Abnormal Jugular Venous Pressure Waveforms - Differential Diagnosis
 - Absent a wave - Atrial fibrillation, sinus
- Differential Diagnosis ... fibrillation, sinus tachycardia ... Jugular #Waveforms #JVP ... #PhysicalExam # ... cardiology