23 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
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 ... EMdoc14 #CannonA #AWaves ... #AVNRT #Neck #PhysicalExam ... #JVP #Cardiology
Abnormal Jugular Venous Pressure Waveforms - Differential Diagnosis
 - Absent a wave - Atrial fibrillation, sinus
, sinus tachycardia ... - Large cv waves ... Jugular #Waveforms #JVP ... #PhysicalExam # ... cardiology
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Caused by atrial ... dissociation + retrograde atrial ... activation from SVT (e.g ... #diagnosis #cardiology ... #CVP
Antecubital Vein examination to estimate JVP/CVP

In this video, the antecubital veins move between 

Below [RA +
examination to estimate JVP ... /CVP In this ... > overestimate JVP ... Antecubital #Vein #PhysicalExam ... #estimate #Cardiology
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
Jugular Waveform Components 
 • a wave - due to atrial contraction: It occurs just before
- due to atrial ... • c wave - caused ... y descent - is caused ... #Waveforms #JVP ... #PhysicalExam #cardiology
Giant A waves caused by pulmonary HTN. There are two clearly discernible descents (X and Y)
Giant A waves caused ... have elevated JVP ... #Giant #PHTN #JVP ... #Clinical #Video ... #Cardiology
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... Subepicardial atrial ... ddx: AVNRT, AVRT ... , atrial tachycardia ... #cardiology