38 results
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Cannon A Waves ... , it indicates AV ... activation from SVT (e.g ... 2LmUODZ #Cannon #AWaves ... #diagnosis #cardiology
Canon A waves in a patient with AV dissociation

Occurs due to the simultaneous contraction of atria
a patient with AV ... contraction of atria ... #waves #AV #dissociation ... #jugular #neck ... #cardiology #Canon
Cannon A Waves on Neck Examination

Cannon a waves! Notice that it occurs randomly, not predictably w/
AV dissociation ... : 3rd deg AV block ... for DDI and an atrial ... #JVP #Clinical ... #Video #Cardiology
Hallmark ECG features of Ventricular Tachycardia (VT)
AV indicates atrioventricular; LAD, left axis deviation; LBBB, left bundle
Hallmark ECG features ... Tachycardia (VT) AV ... block; RWPT, R wave ... #EKG #Electrocardiogram ... #Diagnosis #Cardiology
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... interval < 120 ms = AV ... (e.g. ectopic atrial ... #ECG #Electrocardiogram ... #cardiology #diagnosis
Second Degree Heart Block, Mobitz Type I (Wenckebach)

P waves and QRS complexes are normal but... 
•
Wenckebach) P waves ... non-conducted P wave ... always within the AV ... #Cardiology #EKG ... #ECG #Electrocardiogram
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
(EKG) Digoxin ... - Decreases AV ... Digoxin effect on ECG ... or biphasic T waves ... #EKG #Cardiology
Ectopic atrial rhythm
 • The atrial rate is less than 100 bpm.
 • PR interval within
• Inverted P waves ... maybe mistaken as AV ... Customary to call AV ... #diagnosis #ekg ... #ecg #electrocardiogram
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 ... Hussainch #Cannon #Awaves ... #Cardiology #Neck
Premature atrial complex (PAC) - ECG Recognition
 • Prematurity and altered P wave morphology.
 • P
complex (PAC) - ECG ... • P wave will ... #complexes #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram