28 results
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
: • ST vs SVT ... (AVNRT, OAVRT, AFIutter ... • Tx: Vagal maneuvers ... whether AF is cause ... Tx: Underlying cause
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Narrow Complex Tachycardias ... "PSVT" (atrioventricular ... retrograde) - AVNRT ... , AVRT, Junctional ... differential #diagnosis #causes
Supraventricular Tachycardia (SVT) - Differential Diagnosis Framework and Management

Regular SVT: Sinus Tachycardia, AVNRT, AVRT, Atrial Flutter,
(SVT) - Differential ... Management Regular SVT ... , AVNRT, AVRT, Atrial ... Modified Valsalva Maneuver ... #SVT #Differential
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
• Sinus Tachycardia ... Ectopic Atrial Tachycardia ... Aflutter • AVNRT ... • AVRT (ie ... Diagnosis #Algorithm #causes
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
(AVRT), AV nodal ... (AVNRT) • Ventricles ... VT, Polymorphic ... VT (i.e. ... Differential #Diagnosis #Causes
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Attempt vagal maneuvers ... or AVRT - Observe ... with caution in pulmonary ... Treat underlying cause ... Treat underlying cause
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
Pheochromocytoma • Pulmonary ... Arrhythmias: • SVT ... & termination: SVT ... or other vagal maneuvers ... : SVT-AVNRT or AVRT
Supraventricular Tachycardia EKG

Here’s a great ECG case of a 50-year-old lady who presented with palpitations

Her heart
Supraventricular Tachycardia ... ’s a great ECG case ... @EM_RESUS #AVRT ... #Tachycardia #EKG ... Cardiology #EKG #Clinical
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Respiratory: • Pulmonary ... Tachyarrhythmia: • VT ... AFlutter • AVNRT ... /AVRT - Bradyarrhythmia ... Diagnosis #Algorithm #causes
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
Nodal Reentrant Tachycardia ... - In most case ... narrow complex tachycardia ... Nodal #Reentrant #Tachycardia ... #cardiology #SVT