Updated guidelines for the treatment of AF 2010.
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Transcript of Updated guidelines for the treatment of AF 2010.
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Said KhaledProfessor of CardiologyAin Shams University
2010
Updated guidelines for the treatment of AF 2010.
الرحمن الله بسمالرحيم
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First diagnosed episode of atrial fibrillation
Paroxysmal(usually <48 h)
Persistent(>7 days or requires CV)
Long-standingPersistent (>1 year)
Permanent ( Accepted )
Camm et al., AF Guidelines 2010 Eur heart J 2010
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AF TREATMENT GOALS• Treatment goals in symptomatic pts
– frequency of recurrences– duration of recurrences– severity of recurrences
• Minimize risk of tachycardia induced cardiomyopathy
• Safety is primary concern
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Maintenance of SR
Pharmacologic
Stroke prevention
Nonpharmacologic
Class IA Class ICClass III-blocker
Catheter ablationSurgery (MAZE)Pacing
Pharmacologic• Warfarin• Thrombin inhibitor• Heparin• Aspirin
Nonpharmacologic• Removal / isolation
LA appendage
Rate control
Pharmacologic• Ca2+ blockers• -blockers• Digitalis• Amiodarone
Nonpharmacologic• Ablate and pace
Prevent remodeling ACE-IARB
AF: TREATMENT OPTIONS
Adapted from Prystowsky, Am J Cardiol. 2000;85:3D-11D.
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Camm et al., AF Guidelines 2010 Eur heart J 2010
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His Bundle Ablation
TransvenousCatheter Ablation
PermanentVentricular Pacing
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AV Node Ablation forAtrial Fibrillation
Pro’s Con’s Simple Pacemaker dependence High success Permanent Improved QOL Anticoagulation regular rate controlled rate
Indications If rate cannot be controlled with pharmacologic agents or tachycardia-mediated
cardiomyopathy is suspected, Class IIb, Level of evidence C
Circulation 2006;114:700-752
If pharmacologic therapy is insufficient or associated with side effects.” Class IIa, Level of evidence C
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Maintenance of SR
Pharmacologic
Stroke prevention
Nonpharmacologic
Class IA Class ICClass III-blocker
Catheter ablationSurgery (MAZE)Pacing
Pharmacologic• Warfarin• Thrombin inhibitor• Heparin• Aspirin
Nonpharmacologic• Removal / isolation
LA appendage
Rate control
Pharmacologic• Ca2+ blockers• -blockers• Digitalis• Amiodarone
Nonpharmacologic• Ablate and pace
Prevent remodeling ACE-IARB
AF: TREATMENT OPTIONS
Adapted from Prystowsky, Am J Cardiol. 2000;85:3D-11D.
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Maintenance of SR
Pharmacologic
Stroke prevention
Nonpharmacologic
Class IA Class ICClass III-blocker
Catheter ablationSurgery (MAZE)Pacing
Pharmacologic• Warfarin• Thrombin inhibitor• Heparin• Aspirin
Nonpharmacologic• Removal / isolation
LA appendage
Rate control
Pharmacologic• Ca2+ blockers• -blockers• Digitalis• Amiodarone
Nonpharmacologic• Ablate and pace
Prevent remodeling ACE-IARB
AF: TREATMENT OPTIONS
Adapted from Prystowsky, Am J Cardiol. 2000;85:3D-11D.
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Class IA
Quinidine
Procainamide
Disopyramide
Class IC
Propafenone
Propafenone SR
Flecainide
Class III
Sotalol
Amiodarone
DofetilideDronedarone
Miller and Zipes. In: Braunwald, et al (eds). Heart Disease. 6th ed. 2001.
Rhythm Control for AF: Commonly Used Oral Antiarrhythmic Drugs
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AF Efficacy: Maintaining NSR > 6 Months
0
10
20
30
40
50
60
70
NSR
, %
Nodrug
Quin Diso Prop Flec Sot Dof Azim Amio
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Camm et al., AF Guidelines 2010 Eur heart J 2010
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1. Honloser et al. Lancet 356:1789-94, 2000 2. Van Gelder et al. N Engl J Med 347:1834-00, 20023. Carlsson et al. J Am Coll Cardiol 41:1690-6, 2003 4. AFFIRM Investigators N Engl J Med 347:1825-33, 2002
Combined Results ofPIAF, RACE, STAF, and AFFIRM
STUDY N FU (YR) PRIMARY RHYTHM
SINUS EMBOLI HOSPADMIT DEATH
PIAF1 252 1.0 no difference 56% NA
24% / 69%p = 0.001
1.6% / 1.6%
p = ns
RACE2 522 2.3 no difference 39%
5.5% / 7.9%
p = nsNA
7.0% / 6.8%
p = ns
STAF3 200 1.6 no difference 38%
2.0% / 5.0%
p = ns
26% / 54%p < 0.001
8.0% / 4.0%
p = ns
AFFIRM4 4060 3.5 no difference 62%
3.8% / 3.9%
p = ns
60% / 68%p < 0.001
15% / 18%p = 0.08
TOTAL 5034 3.2 no difference 58%
4.4% / 4.9%
p = ns
57% / 67%p < 0.001
13% / 15%p = 0.11
Comparing Rate Control versus Rhythm Control
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Rate Control or Rhythm Control?
• Four trials (PIAF 2, AFFIRM, RACE and STAF) have shown that rate control is not inferior to rhythm control.
A trend toward an even better outcome for rate control therapy is consistent in all studies. Rate control = Rhythm control
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Maintenance of SR
Pharmacologic
Stroke prevention
Nonpharmacologic
Class IA Class ICClass III-blocker
PacingCatheter ablationSurgery (MAZE)
Pharmacologic• Warfarin• Thrombin inhibitor• Heparin• Aspirin
Nonpharmacologic• Removal / isolation
LA appendage
Rate control
Pharmacologic• Ca2+ blockers• -blockers• Digitalis• Amiodarone
Nonpharmacologic• Ablate and pace
Prevent remodeling ACE-IARB
AF: TREATMENT OPTIONS
Adapted from Prystowsky, Am J Cardiol. 2000;85:3D-11D.
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N Engl J Med 2002;346(26):2066
Devices for AF: Living Better Electrically
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Focal Origin of Atrial Fibrillation
Hassaiguerre M, NEJM, 1998
• 94% of AF triggers from Pulmonary Veins
• “90 – 95% of all AF is initiated by PV ectopy”
RA LA
CS
FO
SVC
IVC
Pulmonary Veins
17 31
6 11
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PV-d
HRA
CS-p
CS-5/6CS-3/4
PV-1/2
PV-3/4
PV-5/6PV-4/5
PV-2/3
PV-6/7PV-7/8PV-8/9
PV-9/10PV-10/1
CS-d
CS-7/8
I
100 ms PVA A
Before Ablation During Ablation
After Ablation
A PV
Lasso™ Guided PV Isolation
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Atrial Fibrillation: Catheter ablation of PV focus
The fluoroscopy images show the ablation catheter (ABL) in the left anterior oblique (LAO) and right anterior oblique (RAO) projections.
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Nathan, Circ Res, 1969?
Left Atrium, Posterior WallPulmonary Vein Isolation
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Atrial Flutter: Catheter mapping
Note sequential activation along the leads of the blue mapping catheter. The yellow ablation catheter is placed in the isthmus between the tricuspid valve and the eustachian valve of the IVC.
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Atrial Flutter: Catheter ablation
Ablation in the tricuspid isthmus creates a line of block that interrupts the flutter circuit. Subsequent pacing from the coronary sinus demonstrates bi-directional block along the line of ablation.
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Catheter ablation vs AAD
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Camm et al., AF Guidelines 2010 Eur heart J 2010
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Camm et al., AF Guidelines 2010 Eur heart J 2010
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Camm et al., AF Guidelines 2010 Eur heart J 2010
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Rate control plusanticoagulation preferred
Rhythm controlpreferred
• No or lesser AF symptoms• Longer AF Hx• More SHD• Toxicity Risk• Elderly• Greater risk of
proarrhythmia
• Greater AF symptoms• Symptoms despite rate
control• Younger age• No or lesser SHD• Rx option of class IC AAD
In anticoagulation candidates, continue anticoagulation indefinitely
APPROACHES TO AF THERAPY
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Maintenance of SR
Pharmacologic
Stroke prevention
Nonpharmacologic
Class IA Class ICClass III-blocker
Catheter ablationSurgery (MAZE)Pacing
Pharmacologic• Warfarin• Thrombin inhibitor• Heparin• Aspirin
Nonpharmacologic• Removal / isolation
LA appendage
Rate control
Pharmacologic• Ca2+ blockers• -blockers• Digitalis• Amiodarone
Nonpharmacologic• Ablate and pace
Prevent remodeling ACE-IARB
AF: TREATMENT OPTIONS
Adapted from Prystowsky, Am J Cardiol. 2000;85:3D-11D.
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Camm et al., AF Guidelines 2010 Eur heart J 2010
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Camm et al., AF Guidelines 2010 Eur heart J 2010
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3000838-18
• WATCHMAN LAA Closure Device
• In PROTECT AF, all cause stroke and all cause mortality risk are non-inferior to warfarin
Whats new in AF ttt 2010Transcathete LAA isolation:
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Amplatzer Cardiac (LAA) Plug Design
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AF in 2010Conclusions
No marked progress in the pharmaceutical cure of AF.
Dronedarone seems to be effective in AF patients with mild or no HF.
Ablation techniques are not yet recognized as a first line treatment.
If we initiate rhythm control therapy early, Could this result in sloweing progression of AF OR
prevent complications ??????
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Thank you