Multifocal Atrial Tachycardia | Tachyarrhythmias - MedSchool
Sign up to start your free trial of MedSchool Premium!Get Started
 
Tachyarrhythmias
 
 
 

Multifocal Atrial Tachycardia

 
 
Bookmark

Overview

  • Multifocal atrial tachycardia is an irregular rhythm that occurs due to multiple atrial ectopic foci.
    • Look For

    • Heart rate >100bpm
    • At least three different P wave morphologies
    • Variable PP intervals
    • An isoelectric baseline (to differentiate from atrial fibrillation or flutter)
    •  
    • Causes of Multifocal Atrial Tachycardia

    • COPD exacerbation
    • Cor pulmonale
    • Ischaemic heart disease
    • Rheumatic heart disease
    • Hypokalaemia / hypomagnesaemia
    • Digoxin toxicity
Last updated on December 29th, 2018
 
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 
Feedback