19 results
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Cannon A Waves ... • Caused by atrial ... atrial activation from ... #AWaves #diagnosis ... #cardiology #CVP
Typical ECG changes in acute pericarditis includes: stage 1 - diffuse, positive, ST elevations with reciprocal
depression in aVR ... PR segment in aVR ... indefinitely inverted #Diagnosis ... #EM #IM #Cardiology ... #Spodick #ECGEducator
ST depression & T wave inversion causes #Pathophys #Diagnosis #Cardiology #MedStudent #EKG #Differential #TWI #STD #TWaveInversion
inversion causes ... #Pathophys #Diagnosis ... #Cardiology #MedStudent ... #EKG #Differential ... Strain #Digitalis #ECGEducator
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... atrial injury from ... diagnosis includes ... #ekg #differential ... #cardiology
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 ... to diagnose the ... excludes other differentials ... #Awaves #AVNRT
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
by a blocked P wave ... #Clinical #EM #IM ... #Cardiology #MedStudent ... #EKG #MobitzI # ... Mobitz1 #Mobitz #ECGEducator
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
by a blocked P wave ... #Clinical #EM #IM ... #Cardiology #MedStudent ... #EKG #MobitzI # ... Mobitz1 #Mobitz #ECGEducator
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
ST elevation in aVR ... indistinguishable from ... #EKG #diagnosis ... #differential # ... cardiology #electrocardiogram
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... Elevation - Differential ... Diagnosis Framework ... #diagnosis #cardiology ... #ecg #ekg #electrocardiogram
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
Tachycardia - Differential ... Diagnosis Table ... AFIutter) • P-waves ... Don't rely on criteria ... #cardiology