12 results
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
• Caused by atrial ... activation from SVT (e.g ... 2LmUODZ #Cannon #AWaves ... #diagnosis #cardiology ... #CVP
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial ... 3 different P wave ... • Irregular Etiology ... Tachycardia #MAT #Cardiology ... #Diagnosis #ECG
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
< 120 ms = AV junction ... (e.g. ectopic atrial ... • Saw-Tooth = Atrial ... Electrocardiogram #cardiology ... #diagnosis #system
Diastolic Function Grading - Schematic diastolic filling patterns

I: impaired relaxation, II: moderate diastolic dysfunction (pseudonormal), III:
Diastolic Function ... LV compliance), ECG ... progression, LA: left atrium ... #Diagnosis #Cardiology ... Classification #Grades #Criteria
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
In AVNRT, the atria ... EKG of the same ... are enough to diagnose ... #PhysicalExam #JVP ... #Cardiology #Neck
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
3 different P waves ... lower AV cells can function ... bradyarrhythmia #ECG ... #EKG #diagnosis ... electrocardiogram #cardiology
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Subepicardial atrial ... : Differential diagnosis ... : AVNRT, AVRT, atrial ... • Vereckei criteria ... #cardiology
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
physiological function ... Wandering Atrial ... Sinus #Arrhythmia #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
physiological function ... Wandering Atrial ... Sinus #Arrhythmia #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram
Multifocal Atrial Rhythm vs Wandering Atrial Pacemaker
Mutifocal Atrial Rhythm / Multifocal Atrial Tachycardia:
Belong to a group
electrocardiographic criteria ... for the diagnosis ... of a variable P-wave ... #cardiology #ekg ... #ecg #electrocardiogram