26 results
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
, Orthodromic AVRT ... , Atrial Tachycardia ... , Atrial flutter ... block, Antidromic AVRT ... #Diagnosis #cardiology
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
: Premature Atrial ... tachycardia (AVRT ... tachycardia (AVNRT ... #Diagnosis #Causes ... #cardiology
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Tachycardia, Atrial ... Flutter, AVRT ( ... WPW), AVnRT (ie ... • Irregular: Atrial ... Tachycardia, Antidromic AVRT
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... Subepicardial atrial ... , AVRT, atrial tachycardia ... #AVR #leadAVR #ecg ... cardiology
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Atrial fibrillation ... Multifocal Atrial ... Atrial flutter ... (Ectopic) Atrial ... , AVRT, Junctional
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
or AVRT - Observe ... 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 ... Pathophysiology #cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
• Premature atrial ... Monofocal Ectopic Atrial ... • AVRT (ie ... • Multifocal Atrial ... tachyarrhythmias #Cardiology
Supraventricular Tachycardia (SVT) - Differential Diagnosis Framework and Management

Regular SVT: Sinus Tachycardia, AVNRT, AVRT, Atrial Flutter,
Sinus Tachycardia, AVNRT ... , AVRT, Atrial Flutter ... , Ectopic Atrial ... Irregular SVT: Atrial ... Diagnosis #Management #cardiology
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Diuretics) • TIA • Psychiatric ... AFlutter • AVNRT ... /AVRT - Bradyarrhythmia ... Syndrome #Syncope #Cardiology ... Diagnosis #Algorithm #causes