20 results
Tachycardia - Differential Diagnosis and Management - Narrow vs Wide, Regular vs Irregular
Narrow - Regular:
Use P
Tachycardia - Differential ... vs Irregular Narrow ... Narrow - Irregular ... waves, is MAT ... Diagnosis #Management #cardiology
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Narrow Complex Tachycardias ... (MAT) ≥ 3 different ... P wave morphologies ... Atrial flutter ... diagnosis #causes #cardiology
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Diagnosis Framework Narrow-Complex ... Flutter, AVRT ( ... (MAT), Atrial Flutter ... Differential #Diagnosis #cardiology ... #wide #narrow #
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
(AVNRT, OAVRT, AFIutter ... ) • P-waves. ... : • AFib > AFIutter ... variable block >> MAT ... #cardiology
Multifocal Atrial Tachycardia (MAT) on EKG
 • Heart rate > 100 bpm (usually 100-150 bpm)
 •
Multifocal Atrial Tachycardia ... (MAT) on EKG ... irregular rhythm ... 3 distinct P-wave ... #diagnosis #cardiology
T Waves: Benign Early Repolarization vs Hyperacute T Waves vs Peaked T Waves 

BER = Notching
Notching or slurring at ... J-point; Prominent ... = Tall, narrow, ... symmetrically peaked #ECG ... #EKG #cardiology
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
- Irregular ... (MAT) - 3 ... different P waves ... #EKG #diagnosis ... electrocardiogram #cardiology
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial Tachycardia ... 3 different P wave ... Rate 100-180 • Irregular ... #MAT #Cardiology ... #EKG #Management
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Treatment of Stable Narrow-Complex ... Tachycardia Regular ... underlying cause Irregular ... or MAT - Control ... Treatment #management #cardiology
Treatment of Stable Wide-Complex Tachycardia
Regular
 • If ventricular tachycardia or uncertain rhythm:
    -
if necessary to max ... give adenosine Irregular ... nodal agents (e.g ... aberrancy - Follow narrow-complex ... Treatment #management #cardiology