24 results
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
, AV Node, Bundle ... of His, and Ventricle ... • Atrial Tachycardia ... AV Reentry Tachycardia ... conduction #pathways #avnrt
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
, AVNRT, Orthodromic ... AVRT, Atrial Tachycardia ... flutter w/ variable AV ... with variable AV ... Differential #Diagnosis #cardiology
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
blocks (1°, 3° and ... blocks (1°, 3°, and ... (AVRT), AV nodal ... (AVNRT) • Ventricles ... Diagnosis #Causes #cardiology
ASD on Bubble Contrast Echocardiogram (a4c)
A patient with an anterior STEMI (take a look at the
ASD on Bubble Contrast ... previously undiagnosed ASD ... Ivan_Echocardio #atrial ... septal #defect #ASD ... #Bubble #Contrast
Atrial Septal Defect (ASD) with Shunting on Echocardiogram with Contrast (a4c)

An elderly patient with dyspnea -
Atrial Septal Defect ... (ASD) with Shunting ... with dyspnea - ASD ... Septal #Defect #ASD ... #pocus #bubble #
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
Nodal Reentrant Tachycardia ... - Premature atrial ... depolarizes the atria ... ECG usually shows ... #cardiology #SVT
Hallmark ECG features of Ventricular Tachycardia (VT)
AV indicates atrioventricular; LAD, left axis deviation; LBBB, left bundle
Hallmark ECG features ... (VT) AV indicates ... wave peak time; and ... #VTach #ECG #EKG ... Electrocardiogram #Diagnosis #Cardiology
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Converts - Probably AVnRT ... and monitor ... Control rate with AV ... Control rate (e.g ... Treatment #management #cardiology
Classic Digoxin-Associated Arrhythmias
 • Atrial fibrillation with an unusually slow ventricular response
 • Atrial Fibrillation with
Complete Heart Block and ... Tachycardia with ... 2:1 AV Block • ... Arrhythmias #diagnosis #cardiology ... #ecg #ekg #electrocardiogram
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... Subepicardial atrial ... ddx: AVNRT, AVRT ... , atrial tachycardia ... #differential #cardiology