8 results
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
PR interval are normal ... #Arrhythmia #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram ... variants #clinical #comparison
Vasospastic (Prinzmetal) Angina
Definition / Epidemiology:
 • Rest angina attributed to coronary artery vasospasm.
 • Patients often
Vasospastic (Prinzmetal) Angina ... • Normal exercise ... changes on tele/ECG ... #cardiology #diagnosis ... #management
Myocarditis
Diagnosis 
• Endomyocardial biopsy (gold standard, rarely performed) 
• Clinical presentation 
• Cardiovascular MRI 
Clinical 
•
• Unexplained sinus ... summation gallop • Abnormal ... ECG, echocardiogram ... cardiac death Management ... #Cardiology
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
PR interval are normal ... #Arrhythmia #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram ... variants #clinical #comparison
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
Approach to ECGs ... Fusion beats - a sinus ... VT #VTach #SVT #Comparison ... VentricularTachycardia #Versus #ecg ... #ekg #cardiology
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
bundle-branch block; and sinus ... Prinzmetal's Angina ... ST Elevation of Normal ... differential #diagnosis #cardiology ... #ecg #ekg #electrocardiogram
Intraoperative Cardiac Free Wall Rupture
Free wall rupture...yes we can save them
Following a syncope event, a 72-y
cardiac diseases, ECG ... showed normal sinus ... pericardial effusion, CT ANGIO ... the tear seen in Video ... surgery #clinical #video
Peripartum Cardiomyopathy (PPCM)

What is PPCM?
• A form of acute systolic heart failure that develops late in
of pregnancy (e.g ... Genetic variants (e.g ... deficiencies (e.g ... Consider biomarkers (e.g ... • Nonspecific: sinus