12 results
Canon A waves in a patient with AV dissociation

Occurs due to the simultaneous contraction of atria
Canon A waves in ... contraction of atria ... MD @msocoMD #CanonA ... #AV #dissociation ... #Canon
Cannon A Waves on Neck Examination

Cannon a waves! Notice that it occurs randomly, not predictably w/
Cannon A Waves on ... Cannon a waves ... Cannon a waves indicate ... AV dissociation ... #AWaves #Neck #
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Cannon A Waves ... • The cannon ... SVT (e.g., junctional ... amzn.to/2LmUODZ #Cannon ... #AWaves #diagnosis
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
Cannon A waves during ... EKG of the same ... rapid cannon a ... waves are enough ... @Hussainch #Cannon
Abnormal Jugular Venous Pressure Waveforms - Differential Diagnosis
 - Absent a wave - Atrial fibrillation, sinus
Abnormal Jugular ... - Differential Diagnosis ... - Absent a wave ... pulmonic stenosis - Cannon ... dissociation, ventricular
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... junction origin (e.g ... (e.g. ectopic atrial ... @AmyChung #EKG ... Interpretation #ECG
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
DANGER Narrow - Regular ... junctional tachy not from ... 3 different P waves ... bradyarrhythmia #ECG ... #EKG #diagnosis
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
200 msec) • P wave ... intervals until a P wave ... completely absent, P waves ... heartblock #cardiology #ecg ... #ekg #diagnosis
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
non-conducted P wave ... Non-conducted P waves ... P and QRS • Atrial ... #EKG #electrocardiogram ... #ecg #cardiology
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
incoming current from ... In most case P wave ... as 'pseudo-s' wave ... and 'pseudo-r' wave ... ECG usually shows