11 results
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
Cannon A waves during ... the atria and ventricles ... EKG of the same ... rapid cannon a waves ... Hussainch #Cannon #Awaves
Cannon A Waves on Neck Examination

Cannon a waves! Notice that it occurs randomly, not predictably w/
Cannon A Waves on ... Cannon a waves ... for DDI and an atrial ... tachycardia much ... #JVP #Clinical
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Multifocal Atrial ... 3 different P wave ... retrograde) - AVNRT ... #differential # ... diagnosis #causes
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Cannon A Waves ... • Caused by atrial ... • The cannon a wave ... 2LmUODZ #Cannon #AWaves ... #CVP
Abnormal Jugular Venous Pressure Waveforms - Differential Diagnosis
 - Absent a wave - Atrial fibrillation, sinus
Pressure Waveforms - Differential ... Diagnosis - Absent ... a wave - Atrial ... Jugular #Waveforms #JVP ... #Differential #
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... overdose: Prominent R wave ... prominent terminal R wave ... , atrial tachycardia ... #ekg #differential
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
- Once the PAC ... P wave is hidden ... as 'pseudo-s' wave ... and 'pseudo-r' wave ... ECG usually shows
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... block (3) Multifocal ... atrial tachycardia ... 3 different P waves ... #EKG #diagnosis
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
Palpitations - Differential ... in the chest or neck ... exam • 12-lead ECG ... sinus syndrome) • Multifocal ... atrial tachycardia
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
heart disease Causes ... No associated P-wave ... , and the T-wave ... Diagnosis: • PAC ... #diagnosis #differential