Caused by circular movement of electrical activity around atrium at rate of 300 times per minute
Ventricular rate determined by AV node conduction
MC is a 2: 1 heart block
History / PE:
Usually asymptomatic
Palpitations
Syncope Lightheadedness
Diagnosis:
Regular rhythm Atrial rate 240-320 bpm
"Sawtooth" appearance of P waves
Treatment:
Anticoagulation
Digoxin Rate control
Cardioversion
