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Updated: Aug 11, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Atrial fibrillation and congestive heart failure: risk factors, mechanisms, and treatment
E Kevin Heist1, Jeremy N Ruskin
1Cardiac Arrhythmia Service, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
Insights
Atrial fibrillation (AF) and congestive heart failure (CHF) often coexist, sharing risk factors and underlying mechanisms. Treatments range from medications and devices to ablation and novel biologic therapies.
Area of Science:
- Cardiology
- Internal Medicine
Background:
- Atrial fibrillation (AF) and congestive heart failure (CHF) are frequently comorbid conditions.
- Shared risk factors include age, hypertension, and myocardial infarction.
- Common pathophysiological mechanisms involve myocardial fibrosis and intracellular dysregulation.
Purpose of the Study:
- To review the relationship between AF and CHF.
- To discuss shared risk factors and mechanisms.
- To outline current and emerging treatment strategies.
Main Methods:
- Literature review of studies on AF and CHF.
- Analysis of shared etiological factors and pathophysiological pathways.
- Evaluation of pharmacological, device-based, and interventional therapies.
Main Results:
- Both AF and CHF share common risk factors and underlying mechanisms.
- Pharmacological treatments like beta-blockers and ACE inhibitors are beneficial for both.
- Device therapies (pacemakers, CRT) and ablation offer therapeutic options.
- Investigational cell and gene therapies show future promise.
Conclusions:
- AF and CHF are interconnected conditions with overlapping pathophysiology.
- A multifaceted treatment approach combining medications, devices, and interventions is often necessary.
- Future biologic therapies hold potential for addressing core disease mechanisms.
Abstract:
Atrial fibrillation (AF) and congestive heart failure (CHF) are commonly encountered together, and either condition predisposes to the other. Risk factors for AF and CHF include age, hypertension, valve disease, and myocardial infarction, as well as a variety of medical conditions and genetic variants. Congestive heart failure and AF share common mechanisms, including myocardial fibrosis and dysregulation of intracellular calcium and neuroendocrine function. Pharmacological treatments including beta-blockers, digoxin, angiotensin-converting enzyme inhibitors and angiotensin receptor blockers can be useful in treating both of these conditions. Antiarrhythmic medications intended to achieve and maintain sinus rhythm may be beneficial in some patients with AF and CHF. Advances in pacemaker and defibrillator therapy, including cardiac resynchronization therapy, may also benefit patients with AF and CHF. Surgical and catheter-based ablation therapy can restore sinus rhythm in patients with AF, with proven benefit in patients with concommitant CHF. Investigational biologic therapy, including cell and gene based therapy, offers promise for the future of reversing the pathophysiological mechanisms that underlie AF and CHF.
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