12 results
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
presence of AV block ... #diagnosis #ekg ... #ecg #electrocardiogram ... #variants #clinical ... #comparison
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
(AV blocks) - ECG ... Diagnosis Summary ... group-beating" on the ECG ... concerning variant ... #ekg #ecg #diagnosis
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
presence of AV block ... #diagnosis #ekg ... #ecg #electrocardiogram ... #variants #clinical ... #comparison
Myocarditis 

5 Principles of
Myocarditis:
1. Build clinical suspicion
2. Decide on EMBx
3. Manage acute cardiac injury
4. Manage chronic
Manage acute cardiac ... Pericarditis, Tamponade EKG ... Findings: - AV block ... #Myocarditis #diagnosis ... #summary #biopsy
Myocarditis
Diagnosis 
• Endomyocardial biopsy (gold standard, rarely performed) 
• Clinical presentation 
• Cardiovascular MRI 
Clinical 
•
Myocarditis Diagnosis ... gallop • Abnormal ECG ... Dysrhythmia, heart block ... shock, sudden cardiac ... #Management #Cardiology
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
• This is a clinically ... concerning variant ... AVBlock #Advanced #diagnosis ... #cardiology #ecg ... #ekg #electrocardiogram
Multifocal Atrial Arrhythmias on ECG
Multifocal atrial rhythm & Multifocal atrial tachycardia
ECG Recognition:
 • Variable P wave
Arrhythmias on ECG ... atrial tachycardia ECG ... Some P waves are blocked ... #diagnosis #ekg ... #comparison #Arrhythmias
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
Ab to AChR blocks ... Fischer and PCB variants ... myasthenia Diagnosis ... and EMG Findings ... Imaging - CT Chest
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
Complexes (PVC's) - Summary ... manifestation of cardiac ... arrhythmia syndromes (e.g ... Bundle branch block ... 300 = NSVT EKG
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Endocarditis Summary ... ↑ ESR, CRP • EKG ... sided IE: heart block ... lesions, heart block ... #management #cardiology