Skip to main content
Log in

Rationale for the Atrial Fibrillation and Congestive Heart Failure (AF-CHF) Trial

  • Published:
Cardiac Electrophysiology Review

Abstract

Congestive heart failure and atrial fibrillation (AF) are two important and growing problems in medicine and cardiology. Both conditions often coexist and complicate each other's management. Two therapeutic strategies are available for patients with AF and congestive heart failure: the first aims at restoring and maintaining sinus rhythm, whereas the second focuses exclusively on optimizing ventricular rate. Prior studies of AF and congestive heart failure were not randomized and most were retrospective. Although some studies suggested that AF had no effect on survival, in most recent large congestive heart failure trials, AF was reported to be an independent risk factor for mortality or major morbidity. The primary objective of the Atrial Fibrillation in Congestive Heart Failure (AF-CHF) trial is to compare the two widely used treatment strategies with respect to cardiovascular mortality. AF-CHF is a prospective, multicenter trial that will randomize 1450 CHF patients with left ventricular ejection fraction (LVEF) ≤35% and a documented recent episode of atrial fibrillation to either a rhythm control or a rate control strategy. From recent trial data, we anticipate an 18.75% 2-year cardiovascular mortality in the rate control arm and a 25% event reduction in the rhythm control group. As of December 2003, 960 patients have been randomized. Enrollment is expected to be completed in September 2004 with a minimum follow-up of 2 years.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Bourassa MG, Gurn´e O, Bangdiwala SI, Ghali JK, Young JB, Rousseau M, Johnstone DE, Yusuf S, for the Studies of Left Ventricular Dysfunction (SOLVD) investigators: Natural history and patterns of current practice in heart failure. J AmColl Cardiol 1993;22(Suppl A):14A-19A.

    Google Scholar 

  2. Carson PE, Johnson GR, Dunkman WB, Fletcher RD, Farrell L, Cohn JN, for the V-HeFT VA Cooperative Studies Group. The influence of atrial fibrillation on prognosis in mild to moderate heart failure. The V-HeFT Studies. Circulation 1993;87(Suppl VI):VI-102-VI-110.

    Google Scholar 

  3. Deedwania PC, Singh BN, Ellenbogen K, Fisher S, Fletcher R, Singh SN, for the Department of Veterans Affairs CHFSTAT Investigators. Spontaneous conversion and maintenance of sinus rhythm by amiodarone in patients with heart failure and atrial fibrillation. Observations from the Veterans Affairs Congestive Heart Failure Survival Trial of Antiarrhythmic Therapy (CHF-STAT). Circulation 1998;98:2574-2579.

    Google Scholar 

  4. Stevenson WG, Stevenson LW. Atrial fibrillation in heart failure [editorial]. N Engl J Med 1999;341:910-911.

    Google Scholar 

  5. Waktare JE, Camm AJ. Acute treatment of atrial fibrillation: Why and when to maintain sinus rhythm. Am J Cardiol 1998;81:3C-15C.

    Google Scholar 

  6. Lemery R, Brugada P, Cheriex E, Wellens HJ. Reversibility of tachycardia-induced left ventricular dysfunction after closed-chest catheter ablation of the atrioventricular junction for intractable atrial fibrillation. Am J Cardiol 1987;60:1406-1408.

    Google Scholar 

  7. Peters KG, Kienzle MG. Severe cardiomyopathy due to chronic rapidly conducted atrial fibrillation: Complete recovery after restoration of sinus rhythm. Am J Med 1988;85; 242-244.

    Google Scholar 

  8. Grogan M, Smith HC, Gersh BJ, Wood DL. Left ventricular dysfunction due to atrial fibrillation in patients initially believed to have idiopathic dilated cardiomyopathy. Am J Cardiol 1992;69:1570-1573.

    Google Scholar 

  9. Kieny JR, Sacrez A, Facello A, Arbogast R, Bareiss P, Roul G, Demangeat J-L, Brunot B, Constantinesco A. Increase in radionuclide left ventricular ejection fraction after cardioversion of chronic atrial fibrillation in idiopathic dilated cardiomyopathy. Eur Heart J 1992;13:1290-1295.

    Google Scholar 

  10. Rodriguez LM, Smeets JL, Xie B, de Chillou C, Cheriex E, Pieters F, Metzger J, den Dulk K, Wellens HJ. Improvement in left ventricular function by ablation of atrioventricular nodal conduction in selected patients with lone atrial fibrillation. Am J Cardiol 1993;72:1137-1141.

    Google Scholar 

  11. Gosselink AT, Crijns HJ, van den Berg MP, van den Broek SA, Hillige H, Landsman ML, Lie KI. Functional capacity before and after cardioversion of atrial fibrillation: A controlled study. Br Heart J 1994;72:161-166.

    Google Scholar 

  12. Clark DM, Plumb VJ, Epstein AE, Kay GN. Hemodynamic effects of an irregular sequence of ventricular cycle lengths during atrial fibrillation. JAmColl Cardiol 1997;30:1039-1045.

    Google Scholar 

  13. Daoud EG, Weiss R, Bahu M, Knight BP, Bogun F, Goyal R, Harvey M, Strickberger SA, Man KC, Morady F. Effect of an irregular ventricular rhythm on cardiac output. Am J Cardiol 1996;78:1433-1436.

    Google Scholar 

  14. Shinbane JS, Wood MA, Jensen DN, Ellenbogen KA, Fitzpatrick AP, Sheinmann MM. Tachycardia-induced cardiomyopathy: A review of animal models and clinical studies. J AmColl Cardiol 1997;29:709-715.

    Google Scholar 

  15. Pozzoli M, Cioffi G, Traversi E, Pinna GD, Cobelli F, Tavazzi L. Predictors of primary atrial fibrillation and concomitant clinical and hemodynamic changes in patients with chronic heart failure: A prospective study in 344 patients with baseline sinus rhythm. J Am Coll Cardiol 1998;32:197-204.

    Google Scholar 

  16. Middlekauf HR, Stevenson WG, Stevenson LW. Prognostic significance of atrial fibrillation in advanced heart failure. A study of 390 patients. Circulation 1991;84:40-48.

    Google Scholar 

  17. Dries DL, Exner DV, Gersh BJ, Domanski MJ, Waclawiw MA, Stevenson LW. Atrial fibrillation is associated with an increased risk for mortality and heart failure progression in patients with asymptomatic and symptomatic left ventricular systolic dysfunction: A retrospective analysis of the SOLVD trials. Studies of Left Ventricular Dysfunction. J AmColl Cardiol 1998;32:695-703.

    Google Scholar 

  18. Maggioni AP, Di Gregorio L, Gorini M, Midi P, Lucci D, Tavazzi L, on behalf of IN-CHF Investigators. Predictors of 1 year mortality in 2086 outpatients with congestive heart failure: Data from Italian network on congestive heart failure. J Am Coll Cardiol 1998: 34(Suppl A):218A (Abstract).

    Google Scholar 

  19. Matthew J, Hunsberger S, Fleg J, Mc Sherry F, Williford W, Yusuf S, for the Digitalis Investigation Group. Incidence, predictive factors and prognostic significance of supraventricular tachy-arrhythmias in congestive heart failure. J AmColl Cardiol 1998;34(Suppl A):218A (Abstract).

    Google Scholar 

  20. Mahoney P, Kimmel S, De Nofrio D, Wohl P, Loh E. Prognostic significance of atrial fibrillation in patients at a tertiary medical center referred for heart transplantation because of severe heart failure. Am J Cardiol 1999;83:1544-1547.

    Google Scholar 

  21. Crijns HJGM, Tjeerdsma G, de Kam PJ, Boomsma F, van Gelder IC, van den Berg MP, van Veldhuisen DJ. Prognostic value of the presence and development of atrial fibrillation in patients with advanced chronic heart failure. Eur Heart J 2000;21:1238-1245.

    Google Scholar 

  22. Wyse DG, Love JC, Yao Q, Carlson MD, Cassidy P, Greene LH, Martin JB, Ocampo C, Raitt MH, Schron E, Stamato NJ, Olarte A. Atrial fibrillation: A risk factor for increased mortality-an AVID registry analysis. J Interv Card Electrophysiol 2001;5:267-273.

    Google Scholar 

  23. Wang TJ, Larson MG, Levy D, Vasan RS, Leip EP, Wolf PA, D'Agostino RB, Murabito JM, Kannel WB, Benjamin EJ. Temporal relations of atrial fibrillation and congestive heart failure and their joint influence on mortality. The Framingham Heart Study. Circulation 2003;107:2920-2925.

    Google Scholar 

  24. Wyse DG, Waldo AL, DiMarco JP, Domanski MJ, Rosenberg Y, Schron EB, Kellen JC, Greene HL, Mickel MC, Dalquist JE, Corley SD; Atrial Fibrillation Follow-up Investigation of Rhythm Management (AFFIRM) Investigators. A comparison of rate control and rhythm control in patients with atrial fibrillation. N Engl J Med 2002;347:1825-1833.

    Google Scholar 

  25. Amiodarone Trials Meta-Analysis Investigators. Effect of prophylactic amiodarone on mortality after acute myocardial infarction and in congestive heart failure: Metaanalysis of individual data from 6500 patients in randomised trials. Lancet 1997;350:1417-1424.

    Google Scholar 

  26. Roy D, Talajic M, Dorian P, Connolly S, Eisenberg MJ, Green M, Kus T, Lambert J, Dubuc M, Gagne P, Nattel S, Thibault B. Amiodarone to prevent recurrence of atrial fibrillation. Canadian Trial of Atrial Fibrillation Investigators. N Engl J Med 2000;342:913-920.

    Google Scholar 

  27. The AFFIRM First Antiarrhythmic Drug Substudy Investigators. Maintenance of sinus rhythm in patients with atrial fibrillation. An AFFIRM substudy of the first antiarrhythmic drug. J AmColl Cardiol 2003;43:20-29.

    Google Scholar 

  28. The AF-CHF trial investigators. Rationale and design of a study assessing treatment strategies of atrial fibrillation in patients with heart failure: The atrial fibrillation and congestive heart failure (AF-CHF) trial. Am Heart J 2002;144:597-607.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Roy, D. Rationale for the Atrial Fibrillation and Congestive Heart Failure (AF-CHF) Trial. Card Electrophysiol Rev 7, 208–210 (2003). https://doi.org/10.1023/B:CEPR.0000012383.63580.c8

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/B:CEPR.0000012383.63580.c8

Navigation