13 results
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
transmitted to JV ... EKG of the same ... are enough to diagnose ... #JVP #Cardiology ... #Neck #Frog #Sign
Cannon A Waves in AVNRT on Neck Physical Exam

69 year old female patient comes with a
AVNRT on Neck Physical ... shown , what’s the diagnosis ... in AVNRT - EMdoc ... #AVNRT #Neck #PhysicalExam ... #JVP #Cardiology
Cannon A Waves on Neck Examination

Cannon a waves! Notice that it occurs randomly, not predictably w/
Neck Examination ... AV dissociation ... and an atrial tachycardia ... #Neck #PhysicalExam ... #JVP #Clinical
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Atrioventricular dissociation ... it indicates AV dissociation ... activation from SVT (e.g ... #diagnosis #cardiology ... #CVP
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... aVR • Classic EKG ... ddx: AVNRT, AVRT ... #AVR #leadAVR #ecg ... #ekg #differential
Abnormal Jugular Venous Pressure Waveforms - Differential Diagnosis
 - Absent a wave - Atrial fibrillation, sinus
- Differential Diagnosis ... fibrillation, sinus tachycardia ... Atrioventricular dissociation ... , ventricular tachycardia ... Jugular #Waveforms #JVP
Multifocal Atrial Arrhythmias on ECG
Multifocal atrial rhythm & Multifocal atrial tachycardia
ECG Recognition:
 • Variable P wave
on ECG Multifocal ... ECG Recognition ... #cardiology #diagnosis ... #ekg #electrocardiogram ... #clinical #comparison
Shock - Diagnosis and Management Summary
 • Hypotension: SBP<90, SBP drop >40, MAP<65 (Normotension, HTN possible
Shock - Diagnosis ... shock state) • Tachycardia ... telemetry, 12-Lead EKG ... - Distended neck ... crackles, elevated JVP
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
in the chest or neck ... exam • 12-lead ECG ... Valvular disease (e.g ... maneuvers: SVT-AVNRT ... bending over: AVNRT
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
SVT - Wide Tachycardias ... 160ms) - AV dissociation ... VT #VTach #SVT #Comparison ... VentricularTachycardia #Versus #ecg ... #ekg #cardiology