Atrial fibrillation (AF)

Diagnostic and therapeutic approach

Treatment

When AF is diagnosed we have to decide about:

  1. Eventual anticoagulation based on CHADs-VASC score. Bleeding risk must be calculated with the HAS-BLED score.
  2. Rhythm control = cardioversion.
  3. Heart rate control.

Alternative to anticoagulation exists, like percutaneous closure of the left atrial appendage (LAA).

AF lasting for less than 48 hours

Anticoagulation and cardioversion

Electrical cardioversion

  • If AF 100-150 Joules in synchrone mode.
  • If atrial flutter begin with 50 Joules in synchrone mode.

Drug cardioversion

If underlying heart disease:

  • [Amiodarone] (# 286) (Cordarone) (i.v. (150-300 mg i.v. in 15 min, then 3x 200 mg / day p.o. for 10 days, then 200 mg / day). Otherwise (no underlying heart disease):
  • [Flecainide] (# 293) (Tambocor) (2 mg / kg in 10 min or 200-300 mg orally.).
  • [Propafenone] (# 295) (Rytmonorm) (2 mg / kg in 10 min or 300-450 mg per os.).
  • [Dronedarone] (# 292) (Multaq) (2x400 mg orally).
  • [Vernakalant] (# 299) (Brinavess) (3 mg / kg in 10 min).
  • [Ibutilide] (# 294) (Corvert) (10 ml in 10 min = 0.87 mg i.v. If <60 kg 0.1 ml / kg..).