13 results
Cannon A Waves of Complete Heart Block on Physical Exam
A patient presented to clinic with lightheadedness
Complete Heart ... ddx includes (1) complete ... She had complete ... #Complete #HeartBlock ... Clinical #Video #JVP
Premature atrial complex (PAC) - ECG Recognition
 • Prematurity and altered P wave morphology.
 • P
complex (PAC) - ... • P wave will ... premature junctional complex ... #complexes #cardiology ... #diagnosis #ekg
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 ... of narrow complex ... Hussainch #Cannon #Awaves
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Cannon A Waves ... against a closed tricuspid ... • The cannon a wave ... 2LmUODZ #Cannon #AWaves ... #CVP
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
(e.g. ectopic atrial ... Lose P • 3° Complete ... through) QRS Complex ... of depth of QRS complex ... in aVR Poor R wave
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
overdose: Prominent R wave ... prominent terminal R wave ... tachycardia • Narrow complex ... , AVRT, atrial tachycardia ... #ekg #differential
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
precedes the QRS complex ... discordant with the QRS complex ... S1Q3T3 pattern; complete ... or in-complete ... - Widened QRS complexes
EKG in Acute Pulmonary Embolism
The sensitivity and specificity for EKG findings in acute PE are low.
EKG
., A-Fib also a ... or Complete RBBB ... • Dominant R Wave ... Changes • STE in aVR ... Embolism #AcutePE #diagnosis
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
In most case P wave ... hidden in the QRS complex ... as 'pseudo-s' wave ... and 'pseudo-r' wave ... regular narrow complex
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... abberancy - N B Afib ... 3 different P waves ... (2) Sick Sinus Syndrome ... #EKG #diagnosis