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 ... neck #cardiology ... #Canon
Abnormal Jugular Venous Pressure Waveforms - Differential Diagnosis
 - Absent a wave - Atrial fibrillation, sinus
Abnormal Jugular ... pulmonic stenosis - Cannon ... dissociation, ventricular ... - Tricuspid regurgitation ... #JVP #Differential
Cannon A Waves of Complete Heart Block on Physical Exam
A patient presented to clinic with lightheadedness
Cannon A Waves of ... this results in “cannon ... a waves”! ... our patient have cannon ... UCSFIMChiefs #CannonA
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 ... #AWaves #Neck # ... PhysicalExam #JVP
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Cannon A Waves ... • The cannon ... a wave usually occurs ... amzn.to/2LmUODZ #Cannon ... #AWaves #diagnosis
Cannon A Waves in AVNRT on Neck Physical Exam

69 year old female patient comes with a
Cannon A Waves in ... ... regular cannon ... a waves in AVNRT ... EMdoc @EMdoc14 #CannonA ... #JVP #Cardiology
Jugular Waveform Components 
 • a wave - due to atrial contraction: It occurs just before
Components • a wave ... • c wave - caused ... the y descent cannot ... #Waves #Jugular ... #Waveforms #JVP
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
Cannon A waves during ... regular rapid cannon ... a waves are enough ... @Hussainch #Cannon ... #Awaves #AVNRT
Lancisi's sign on Physical Exam
Lancisi's sign = loss of the x descent (in tricuspid regurg) creating
creating a fused cv wave ... #PhysicalExam #Waveform ... #Clinical #Video ... #Neck #JVP #Tricuspid ... #Regurgitation
RA/CVP Waveform Interpretation

Central venous pressure (CVP) or right atrial pressure (RAP) waveform tracings can often times
RA/CVP Waveform ... ventricle (RV), tricuspid ... Classic “cannon ... with mitral regurgitation ... #Diagnosis #Cardiology