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Cannon A Waves on Physical Exam

Dr. Bruno Farnetano @bruno.farnetano

#Cannon #AWaves #CannonA #PhysicalExam #JVP #Jugular #clinical #video
Cannon A Waves on ... bruno.farnetano #Cannon #AWaves ... #PhysicalExam #JVP ... #Jugular #clinical
Jugular Waveform Components 
 • a wave - due to atrial contraction: It occurs just before
Jugular Waveform ... - due to atrial ... - due to right atrial ... #Waves #Jugular ... #Waveforms #JVP
Abnormal Jugular Venous Pressure Waveforms - Differential Diagnosis
 - Absent a wave - Atrial fibrillation, sinus
Abnormal Jugular ... - Atrial fibrillation ... - Atrial flutter ... tamponade #Abnormal #Jugular ... #Waveforms #JVP
Canon A waves on Physical Examination

Associated with complete heart block. Notice the relatively slow HR. Echocardiography
Canon A waves on ... drahmedmohsen85 #Canon #Awaves ... #CanonA #Waves ... PhysicalExam #cardiology #JVP ... #Jugular
Inverted P Waves:
(A) Ectopic atrial rhythm
(B) Junctional rhythm 

#Inverted #PWaves #cardiology #diagnosis #ekg #ecg #electrocardiogram #differential
Inverted P Waves ... : (A) Ectopic atrial ... #Inverted #PWaves ... cardiology #diagnosis #ekg ... #ecg #electrocardiogram
Atrial Flutter on Jugular Neck Examination

What does the neck / JVP exam suggest about the patient’s
Atrial Flutter on ... Jugular Neck Examination ... does the neck / JVP ... #Flutter #Jugular ... #JVP #Neck #PhysicalExam
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
In AVNRT, the atria ... simultaneously at regular ... transmitted to JV ... EKG of the same ... #PhysicalExam #JVP
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 ... 2LmUODZ #Cannon #AWaves ... diagnosis #cardiology #CVP
Differentiating A-Wave vs V-Wave on JVP Examination

Identifying waves in JVP without timing with carotid. A wave
vs V-Wave on JVP ... in JVP without ... A wave is quick ... DrRajeshG1 #AWave ... #VWave #JVP #Jugular
Canon A waves in a patient with AV dissociation

Occurs due to the simultaneous contraction of atria
contraction of atria ... in the JV. ... msocoMD #CanonA #Awaves ... clinical #video #JVP ... #jugular #neck