32 results
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... in narrow cornplex ... tachycardia • Narrow ... tachycardia ddx: AVNRT ... #AVR #leadAVR #ecg
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Diagnosis Framework Narrow-Complex ... Atrial Flutter, AVRT ... WPW), AVnRT (ie ... Tachycardia, Antidromic AVRT ... cardiology #wide #narrow
Lead aVR on EKG
Lead aVR can provide some unique insight into 5 different conditions:

 - Acute
Lead aVR on EKG ... Lead aVR can provide ... TCA-like overdose - AVRT ... in narrow complex ... #ECG #Lead #AVR
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
Differential Diagnosis • Narrow ... Sinus tachycardia, AVNRT ... , Orthodromic AVRT ... tachycardia • Narrow ... block, Antidromic AVRT
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Narrow Complex Tachycardias ... ) Irregular Narrow ... retrograde) - AVNRT ... , AVRT, Junctional ... NarrowComplex #Narrow
Wolff-Parkinson-White (WPW)
- Orthodromic AVRT: Narrow complex, most common 
- Antidromic AVRT: wide complex because goes through
- Orthodromic AVRT ... : Narrow complex ... - Antidromic AVRT ... WPW #Cardiology #ECG ... #EKG #Electrocardiogram
Tachycardia - Differential Diagnosis and Management - Narrow vs Wide, Regular vs Irregular
Narrow - Regular:
Use P
and Management - Narrow ... vs Irregular Narrow ... deflection not AVRT ... /AVNRT. ... #algorithm #irregular
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Differential Diagnosis Algorithm ... (>100 bpm) - Narrow ... Aflutter • AVNRT ... • AVRT (ie ... WPW) - Narrow
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Treatment of Stable Narrow-Complex ... Converts - Probably AVnRT ... or AVRT - Observe ... Control rate (e.g ... management #cardiology #algorithm
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
A waves during AVNRT ... Physical Exam In AVNRT ... minute=rate of AVNRT ... case as Typical AVNRT ... differentials of narrow