21 results
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
through SA Node, Atrium ... • Atrial Tachycardia ... • Atrial Flutter ... • Atrial Fibrillation ... conduction #pathways #avnrt
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Atria: Premature ... Atrial Contractions ... (PACs), Atrial ... (PST), Focal Atrial ... (AVNRT) • Ventricles
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 ... Ivan_Echocardio #Atrial ... Septal #Defect #ASD
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
Classic Digoxin-Associated Arrhythmias
 • Atrial fibrillation with an unusually slow ventricular response
 • Atrial Fibrillation with
Atrial fibrillation ... ventricular response • Atrial ... Complete Heart Block and ... Escape Rhythm • Atrial ... #diagnosis #cardiology
Negative contrast effect = a washout of the contrast (agitated saline) in the right atrium in
) in the right atrium ... patient with an ASD ... effect #washout #ASD ... #atrial #septal ... #defect #a4c #Echocardiogram
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Subepicardial atrial ... • Predictor of arrhythmia ... ddx: AVNRT, AVRT ... , atrial tachycardia ... #AVR #leadAVR #ecg
Multifocal Atrial Arrhythmias on ECG
Multifocal atrial rhythm & Multifocal atrial tachycardia
ECG Recognition:
 • Variable P wave
Multifocal Atrial ... atrial rhythm & ... Multifocal atrial ... tachycardia ECG ... MAT #Multifocal #atrial
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
and monitor ... convert - Possible atrial ... flutter, ectopic atrial ... Rhythm: • Probable atrial ... fibrillation or possible atrial
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
- Premature atrial ... pathway back up to atrium ... depolarizes the atria ... ECG usually shows ... #cardiology #SVT