Multiple (3 or more) ectopic foci in the atria causing an irregular atrial tachycardia
Increased automaticity due to causes listed below
COPD
CHF
Sepsis
Methylxanthine toxicity / Theophylline toxicity
Electrolyte abnormalities
Other associations
Valvular heart disease
DM
Acute renal failure
Postoperative state
Pulmonary embolism
Pneumonia
Anemia
Digoxin toxicity
Valvular heart disease
DM
Acute renal failure
Postoperative state
Pulmonary embolism
Pneumonia
Anemia
Digoxin toxicity
Multifocal atrial tachycardia
Regular
Wandering atrial pacemaker
AV Node Independent
Wide-complex tachycardia
Sinus tachycardia
Narrow-complex tachycardia
Atrial tachycardia 