12 results
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
• Caused by atrial ... against a closed tricuspid ... activation from SVT (e.g ... #diagnosis #cardiology ... #CVP
Abnormal Jugular Venous Pressure Waveforms - Differential Diagnosis
 - Absent a wave - Atrial fibrillation, sinus
- Differential Diagnosis ... atrioventricular block ... Atrioventricular dissociation ... Jugular #Waveforms #JVP ... #Differential #Diagnosis
Cannon A Waves of Complete Heart Block on Physical Exam
A patient presented to clinic with lightheadedness
patient presented to clinic ... is shown on the neck ... increase in CVP ... diastole, when the tricuspid ... #Video #JVP
Cannon A Waves on Neck Examination

Cannon a waves! Notice that it occurs randomly, not predictably w/
Neck Examination ... AV dissociation ... : 3rd deg AV block ... for DDI and an atrial ... #JVP #Clinical
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
Multifocal Atrial Arrhythmias on ECG
Multifocal atrial rhythm & Multifocal atrial tachycardia
ECG Recognition:
 • Variable P wave
tachycardia ECG ... are blocked or ... tachycardia #cardiology #diagnosis ... #ekg #electrocardiogram ... #clinical #comparison
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
independently of the atria ... leading to AV node dissociation ... heartblock #cardiology #ecg ... #ekg #diagnosis ... #electrocardiogram
Wellens' Sign: LAD-T Wave Inversion 
Life threatening T wave inversions in precordial leads. Often V2-V3 
Specific
Specific for critical ... week of becoming acute ... Serial EKGS in pts ... #ECG #Electrocardiogram ... #Diagnosis #Cardiology
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Acute myocardial ... Subepicardial atrial ... criteria only looks ... #electrocardiogram ... #diagnosis #ekg
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
presence of AV block ... Wandering Atrial ... Arrhythmia #cardiology #diagnosis ... #ekg #ecg #electrocardiogram ... #variants #clinical