12 results
Myocarditis
Diagnosis 
• Endomyocardial biopsy (gold standard, rarely performed) 
• Clinical presentation 
• Cardiovascular MRI 
Clinical 
•
Cardiovascular MRI ... • Unexplained sinus ... summation gallop • Abnormal ... ECG, echocardiogram ... Diagnosis #Management #Cardiology
Abnormal Jugular Venous Pressure Waveforms - Differential Diagnosis
 - Absent a wave - Atrial fibrillation, sinus
Abnormal Jugular ... fibrillation, sinus ... atrioventricular block ... Differential #Diagnosis #PhysicalExam ... #cardiology
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
PR interval are normal ... presence of AV block ... Wandering Atrial ... #Arrhythmia #cardiology ... #variants #clinical
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
• During sinus ... • This is a clinically ... • In sinus rhythm ... atrioventricular #blocks #AVBlock ... #cardiology #ekg
Ectopic atrial rhythm
 • The atrial rate is less than 100 bpm.
 • PR interval within
interval within the normal ... P wave during sinus ... rhythm if the PRI ... #rhythm #cardiology ... #ecg #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
PR interval are normal ... presence of AV block ... Wandering Atrial ... #Arrhythmia #cardiology ... #variants #clinical
Paroxysmal AV Block on ECG
 - Characterized by an abrupt and persistent AV block in the
presence of otherwise normal ... or slowing of sinus ... #diagnosis #cardiology ... #ekg #ecg #electrocardiogram ... #clinical
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
Approach to ECGs ... - RAD: AntLat MI ... ) - HiPR: AV block ... : WPW, ectopic atrial ... electrocardiogram #cardiology
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
Bundle branch block ... (≥ 0.12s) with abnormal ... capture of the atria ... tachycardia • Sinus ... #differential #cardiology
This is a parasternal long axis view of a young patient presenting with 3 days of
x-ray and and ECG ... with sinus tachycardia ... root, and left atrium ... Northwestern University #Clinical ... #EM #Radiology