Rapid Atrial Fibrillation Treatment Strategy

The patient will receive 1) amiodarone 150mg bolus over ten minutes followed by intravenous (IV) 1mg/min for 6 hours and then 0.5mg/min for 18hours, and 2) direct current cardioversion (DCC) at the completion of initial 6 hour IV bolus or within 24 hours of new onset of atrial fibrillation. Patient will be placed on by mouth amiodarone 400mg three times daily for seven days, then 400mg twice daily for seven days, then 400mg once daily for seven days, then 200mg daily until stop date which will be by provider discretion after discharge from ICU. If the patient does not convert to a normal sinus rhythm with routine DCC then they will remain in the rhythm-control strategy to receive amiodarone as directed. Amiodarone may be extended at discretion of provider for 30 days with discontinuation if adverse effects. If no contraindications, anticoagulation will be recommended prior to DCC with enoxaparin 1mg/kg every 12 hours.

The patient will receive 1) amiodarone 150mg bolus over ten minutes followed by intravenous (IV) 1mg/min for 6 hours and then 0.5mg/min for 18hours, and 2) direct current cardioversion (DCC) at the completion of initial 6 hour IV bolus or within 24 hours of new onset of atrial fibrillation. Patient will be placed on by mouth amiodarone 400mg three times daily for seven days, then 400mg twice daily for seven days, then 400mg once daily for seven days, then 200mg daily until stop date which will be by provider discretion after discharge from ICU. If the patient does not convert to a normal sinus rhythm with routine DCC then they will remain in the rhythm-control strategy to receive amiodarone as directed. Amiodarone may be extended at discretion of provider for 30 days with discontinuation if adverse effects. If no contraindications, anticoagulation will be recommended prior to DCC with enoxaparin 1mg/kg every 12 hours.

The patient will receive 1) amiodarone 150mg bolus over ten minutes followed by intravenous (IV) 1mg/min for 6 hours and then 0.5mg/min for 18hours, and 2) direct current cardioversion (DCC) at the completion of initial 6 hour IV bolus or within 24 hours of new onset of atrial fibrillation. Patient will be placed on by mouth amiodarone 400mg three times daily for seven days, then 400mg twice daily for seven days, then 400mg once daily for seven days, then 200mg daily until stop date which will be by provider discretion after discharge from ICU. If the patient does not convert to a normal sinus rhythm with routine DCC then they will remain in the rhythm-control strategy to receive amiodarone as directed. Amiodarone may be extended at discretion of provider for 30 days with discontinuation if adverse effects. If no contraindications, anticoagulation will be recommended prior to DCC with enoxaparin 1mg/kg every 12 hours.

At treating physician's discretion, one of the following, or a combination of the following, will be administered to the patient: Amiodarone, beta blockers or non-dihydropyridine calcium channel blockers, digoxin. The target heart rate is less than 120 beats per minute (bpm) or maintained hemodynamics. Patients in the rate-control arm who are hypotensive after new onset atrial fibrillation can undergo DCC at the provider's discretion and crossover into the rhythm-control arm.