9 results
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
EKG of the same ... to diagnose the case ... That’s called Frog ... #AVNRT #PhysicalExam ... #JVP #Cardiology
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
vs SVT (AVNRT, ... AFIutter) • P-waves ... > SVT+conduction ... abnormality • Beware AV ... #cardiology
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Caused by atrial ... , it indicates AV ... atrial activation from ... SVT (e.g., junctional ... #diagnosis #cardiology
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
incoming current from ... - In most case ... : regular narrow ... Pathophysiology #cardiology ... #SVT
Supraventricular Tachycardia EKG

Here’s a great ECG case of a 50-year-old lady who presented with palpitations

Her heart
case of a 50-year-old ... distinguishing QRS from ... T wave in some ... @EM_RESUS #AVRT ... #Cardiology #EKG
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
DANGER Narrow - Regular ... 3 different P waves ... longer pause 2º ... #EKG #diagnosis ... electrocardiogram #cardiology
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
cardiac glycoside from ... - Decreases AV ... : - Scooping ST ... or biphasic T waves ... #Cardiology #Digitalis
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
• Rapid and regular ... Severe mitral regurgitation ... Severe aortic regurgitation ... vagal maneuvers: SVT-AVNRT ... #Palpitations #Cardiology
WOBBLER  for ECG assessment in Syncope 
W - Wolff Parkinson White 
O - Obstructed AV
O - Obstructed AV ... patient, going from ... is obstructed AV ... Mnemonic #Syncope #EKG ... #Cardiology