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The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
and PR interval are ... presence of AV block ... #diagnosis #ekg ... #variants #clinical ... #comparison
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
and PR interval are ... presence of AV block ... #diagnosis #ekg ... #variants #clinical ... #comparison
Multiple Sclerosis - Summary

Multiple Sclerosis (MS) is an autoimmune-mediated neurodegenerative disease of the central nervous system
Sclerosis • Marburg Variant ... resonance imaging [MRI ... patients with clinically ... stimulation Clinical ... symptoms) • Acute
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 ... anterior wall MI ... are crucial. ... #Diagnosis #Cardiology
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
Invert III normal variant ... - Note: there are ... @AmyChung #EKG ... Electrocardiogram #cardiology ... #diagnosis #system
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
• This is a clinically ... concerning variant ... #Highgrade #AVBlock ... #Advanced #diagnosis ... #cardiology #ecg
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
• This is a clinically ... concerning variant ... atrioventricular #blocks #AVBlock ... #cardiology #ekg ... #ecg #diagnosis
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
- Differential Diagnosis ... weeks following an acute ... Elevation of Normal Variant ... #differential #diagnosis ... #cardiology #ecg
Peripartum Cardiomyopathy (PPCM)

What is PPCM?
• A form of acute systolic heart failure that develops late in
• A form of acute ... ., Black women are ... Cesarean delivery Clinical ... Key Point: High clinical ... Susceptibility • Genetic variants