8 results
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Cannon A Waves ... a wave usually occurs ... , it indicates AV ... #AWaves #diagnosis ... #cardiology #CVP
Canon A waves in a patient with AV dissociation

Occurs due to the simultaneous contraction of atria
Canon A waves in ... contraction of atria ... #AV #dissociation ... #JVP #jugular # ... neck #cardiology
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 ... increase in CVP ... #AWaves #Complete ... #JVP
Cannon A Waves on Neck Examination

Cannon a waves! Notice that it occurs randomly, not predictably w/
Cannon A Waves on ... Cannon a waves ... AV dissociation ... #AWaves #Neck # ... PhysicalExam #JVP
Abnormal Jugular Venous Pressure Waveforms - Differential Diagnosis
 - Absent a wave - Atrial fibrillation, sinus
- Differential Diagnosis ... pulmonic stenosis - Cannon ... dissociation, ventricular ... - Large cv 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
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
(> 160ms) - AV ... dissociation (P ... nadir of the S-wave ... nadir of the S-wave ... #diagnosis #electrocardiogram
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 ... absent, P waves ... dissociation and ... #ekg #diagnosis