17 results
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial Tachycardia ... • Oxygen • Treatment ... #MAT #Cardiology ... #Diagnosis #ECG ... #EKG #Management
Wolff-Parkinson-White Syndrome

WPW is a congenital abnormality characterized by an abnormal accessory conduction pathway between the atria
characterized by an abnormal ... QRS interval on EKG ... The definitive treatment ... WolffParkinsonWhite #WPW #Cardiology ... #ECG #EKG #Electrocardiogram
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
Approach to ECGs ... SVT - Wide Tachycardias ... of normal duration ... VentricularTachycardia #Versus #ecg ... #ekg #cardiology
Vasospastic (Prinzmetal) Angina
Definition / Epidemiology:
 • Rest angina attributed to coronary artery vasospasm.
 • Patients often
Normal exercise ... changes on tele/ECG ... tests in cath lab Treatment ... #cardiology #diagnosis ... #management
Treatment of Stable Wide-Complex Tachycardia
Regular
 • If ventricular tachycardia or uncertain rhythm:
    -
Treatment of Stable ... Wide-Complex Tachycardia ... nodal agents (e.g ... #Treatment #management ... #cardiology #algorithm
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Narrow-Complex ... Control rate (e.g ... Control rate (e.g ... #Treatment #management ... #cardiology #algorithm
Myocarditis
Diagnosis 
• Endomyocardial biopsy (gold standard, rarely performed) 
• Clinical presentation 
• Cardiovascular MRI 
Clinical 
•
Unexplained sinus tachycardia ... summation gallop • Abnormal ... ECG, echocardiogram ... cardiac death Management ... #Cardiology
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
arrhythmia syndromes (e.g ... 300 = NSVT EKG ... (≥ 0.12s) with abnormal ... more intensive treatment ... #differential #cardiology
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Brady Management ... Pacemaker 3rd Degree, Complete ... summary #Diagnosis #EKG ... electrocardiogram #ecg ... #cardiology
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
block; and sinus tachycardia ... Prinzmetal's Angina ... ST Elevation of Normal ... differential #diagnosis #cardiology ... #ecg #ekg #electrocardiogram