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Atrial fibrillation

Prevalence
Causes
Clinical features
Investigations
Therapy
Prevention
Prognosis
Therapy

Chronic atrial fibrillation

Why?

  • Flecainide is more effective at cardioversion than procainamide a , propafenone a , digoxin a or verapamil a , though not clearly better than amiodarone. d
  • Watch for severe hypotension. a

Flecainide is more effective at cardioversion than procainamide, digoxin or verapamil

Patient Treatment Comparison Outcome CER RRR
(95% CI)
NNT
(95% CI)
acute AF a flecainide procainamide sinus rhythm
at 60 minutes
62% 32%
(13% to 48%)
3
(2 to 8)
recent onset AF a flecainide digoxin sinus rhythm
at 6 hours
35% 32%
(13% to 50%)
3
(2 to 8)
recent onset AF a flecainide digoxin severe hypotension
at 6 hours
5.9% -270%
(-1100% to -9%)
-6
(-37 to -3)
paroxysmal AF a flecainide verapamil sinus rhythm
at 60 minutes
5.0% 1300%
(100% to 9600%)
2
(1 to 2)
 

Flecainide is more effective at cardioversion than propafenone

Patient Treatment Comparison Outcome CER OR
(95% CI)
NNT
(95% CI)
persistent or paroxysmal AF a flecainide propafenone sinus rhythm
at 24 hours
30% 5.1
(2.3 to 11.0)
5.1
(2.3 to 11.0)

 


Expiry date: February 2003
Levels of Evidence used in grading these guides

Authors   CM   Ball , N   Shenker
Reviewer   R G   Hart
CAT Writers   CM   Ball , N   Shenker , CJ   Wotton