Overview
Multifocal atrial tachycardia is an irregular rhythm that occurs due to multiple atrial ectopic foci.
Pathogenesis
Causes of Multifocal Atrial Tachycardia
- COPD exacerbation
- Cor pulmonale
- Ischaemic heart disease
- Rheumatic heart disease
- Hypokalaemia / hypomagnesaemia
- Digoxin toxicity
Diagnosis
ECG Findings
- Heart rate >100bpm
- At least three different P wave morphologies
- Variable PP intervals
- An isoelectric baseline (to differentiate from atrial fibrillation or flutter)
Next Page
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------