13 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 ... exaggerated A wave ... #Awaves #waves ... #jugular #neck
Abnormal Jugular Venous Pressure Waveforms - Differential Diagnosis
 - Absent a wave - Atrial fibrillation, sinus
- Absent a wave ... pulmonic stenosis - Cannon ... dissociation, ventricular ... #JVP #Differential ... #Diagnosis #PhysicalExam
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 ... a wave usually occurs ... activation from SVT (e.g ... #AWaves #diagnosis ... #cardiology #CVP
Cannon A Waves of Complete Heart Block on Physical Exam
A patient presented to clinic with lightheadedness
Cannon A Waves of ... is shown on the neck ... The a wave is the ... a waves”! ... Clinical #Video #JVP
Cannon A Waves in AVNRT on Neck Physical Exam

69 year old female patient comes with a
Cannon A Waves in ... a waves in AVNRT ... #AWaves #AVNRT ... #Neck #PhysicalExam ... #JVP #Cardiology
Jugular Waveform Components 
 • a wave - due to atrial contraction: It occurs just before
Components • a wave ... • c wave - caused ... • v wave - results ... #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 ... In AVNRT, the atria ... a waves are enough ... #Awaves #AVNRT ... #PhysicalExam #JVP
Giant A waves caused by pulmonary HTN. There are two clearly discernible descents (X and Y)
Giant A waves caused ... that the giant A waves ... causing the A waves ... in the venous waveform ... #Neck #PhysicalExam
RA/CVP Waveform Interpretation

Central venous pressure (CVP) or right atrial pressure (RAP) waveform tracings can often times
RA/CVP Waveform ... Classic “cannon ... waves” caused by ... with mitral regurgitation ... #Diagnosis #Cardiology