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Electrical Cardioversion for Persistent Atrial Fibrillation in the Era of Catheter Ablation: A Real-world Observational Study

Electrical cardioversion (ECV) for persistent AF is acutely efficacious, with a low incidence of major complications. However, during long-term follow-up, recurrence of AF is common, and ECV is not an effective long-term strategy for the maintenance of SR. We propose a strategy for using ECV in the management of persistent AF. Catheter ablation is effective, widely available, and should be the preferred strategy for the majority of patients with persistent AF.

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 Atrial Fibrillation: Should I Try Electrical Cardioversion?

For most people, cardioversion restores a normal heart rhythm right away. But atrial fibrillation often comes back. Many factors affect how long the heart stays in a normal rhythm. Your doctor can help you understand how well cardioversion might work for you.

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AFib: Cardioversion vs Ablation - Which Works Best?

In this video I discuss the pros and cons of cardioversion vs an afib ablation procedure. Learn when I suggest one procedure over another for my patients.

Cardioversion vs Ablation: Meaning And Differences

Ultimately, the choice between cardioversion and ablation will depend on a variety of factors, including the patient’s medical history, the severity of their condition, and their overall health. It is important to work closely with a doctor to determine which treatment option is best for each individual patient.

Cardioversion (for atrial fibrillation or atrial flutter)

In general, cardioversion is performed in those patients who are symptomatic. Thromboembolic disease is a major cause of morbidity and mortality in patients with AF or AFL. The use of transesophageal echocardiography can rule out any intracardiac thrombus, especially in the left atrial appendage, and facilitate earlier cardioversion.

Cardioversion and Atrial Fibrillation Ablation

I don’t feel that in general I wouldn’t pursue an atrial fibrillation ablation. I think if somebody who has paroxysmal AFib or, and really doesn’t tolerate AFib well, I think it’s not completely unreasonable to consider an atrial fibrillation or pulmonary vein isolation, ablation.

Cardioversion and Catheter Ablation of Atrial Fibrillation Using Novel Oral Anticoagulants

Based on strong clinical trial data, NOACS are now widely used for stroke prevention in AF patients. Data are more limited for NOACs (in comparison to warfarin) used during cardioversion and catheter ablation procedures, but the available data (with the exception of one published study of dabigatran versus warfarin for ablation) generally suggest that NOACS have similar safety profiles to warfarin for these procedures.

Cardioversion of atrial fibrillation and atrial flutter revisited: current evidence and practical guidance for a common procedure

Cardioversion is widely used as part of a rhythm control strategy in patients with AF. Nevertheless, a wait-and-see approach is reasonable in patients with recent-onset AF, as the majority will convert spontaneously within 48 h. Recurrences after ECV of persistent AF show a specific pattern which may help guide rhythm control. Although complications of cardioversion overall are rare, it is of utmost importance to assess thromboembolic risk before the procedure, initiate timely OAC and continue life-long in patients with increased stroke risk.

Early direct current cardioversion or ablation for atrial fibrillation or atrial flutter and acute decompensated heart failure

There is a paucity of data on the optimal management strategy for inpatients that are hospitalised for AF or AFL and ADHF and current guidelines recommend an initial rate control strategy. Except for patients with haemodynamic compromise, immediate or very early cardioversion is generally avoided due to the high rate of early recurrence.

Electrical Cardioversion for Atrial Fibrillation

Various studies have reported that electrical cardioversion is over 90 percent effective in converting to a normal sinus rhythm though many people revert back into afib shortly thereafter. Success has been shown to be enhanced when patients are on an antiarrhythmic drug beforehand, which helps prevent reverting back to afib. Success depends on the size of the left atrium as well as how long the patient has been in afib. Patients with a very large left atrium, one greater than 5 cm, or who have been in constant afib for a year or two, may find that electrical cardioversion is not effective in converting to or maintaining a normal sinus rhythm.

Outcomes after catheter ablation and cardioversion in patients with non-valvular atrial fibrillation:

The rates of adverse outcomes (i.e. symptomatic thromboembolic events and major bleeding) were low in this real-life cohort of patients with AF treated with rivaroxaban who underwent catheter ablation or cardioversion as part of the XANTUS study, with no deaths up to 30 days after the procedure. These results were similar to the results of prospective, randomized controlled trials, and observational studies and suggest that the use of rivaroxaban in patients with AF undergoing catheter ablation or cardioversion as part of routine clinical practice may be associated with an acceptable benefit–risk profile.

Pharmacological Cardioversion

Three types of cardioversion can be used to attempt to change the rhythm of the heart. The initial evaluation for which type to use is the patient’s hemodynamic status. Chemical cardioversion involves treating with a medication to convert the rhythm back into a normal sinus rhythm. The success of the chemical cardioversion depends on many factors, including the underlying cause of the arrhythmia, and the duration of the arrhythmia.

Risk of stroke after catheter ablation versus cardioversion for atrial fibrillation

In patients with AF, there is a small periprocedural stroke risk with ablation in comparison to cardioversion. However, over longer-term follow-up, ablation is associated with a slightly lower rate of stroke.

Shocking AF — What’s the rush?

If I had just one thing to say to patients and doctors about the disease atrial fibrillation it would be this: Be as scared of AF treatment as you are of the disease.

Ablation vs Medication for Atrial Fibrillation: what is the gold standard?

Definitive treatment to maintain normal sinus rhythm.

Catheter Ablation Versus Medical Therapy for Atrial Fibrillation

CA is associated with all-cause mortality benefit, that is driven by patients with AF and heart failure with reduced ejection fraction. CA reduces cardiovascular hospitalizations and recurrences of atrial arrhythmia for patients with AF. Younger patients and men appear to derive more benefit from CA.

My Approach to Selection of Atrial Fibrillation Patients for Ablation

Contemporary management strategies for atrial fibrillation vary widely, partly because of a lack of definitive recommendations, and partly because of the need to individualize therapy based on the patient’s symptoms and comorbidities.

Reverting Back to Afib After Cardioversion

There are many reasons why electrical cardioversion is more effective for some people than others. For instance, it seems to work better on people who also take medication to control their heart rhythm. It does not seem to work as well on people who have been in constant afib for more than a year. People with an enlarged left atrium may not respond as well to this treatment. Also, cardioversion is more likely to fail in people with untreated sleep apnea, a common sleep disorder.

Rewiring the Heart: Catheter Ablation for AFib

For patients in the early stages of AFib, with symptoms that come and go (known as paroxysmal AFib), catheter ablation has an 80 to 90 percent success rate. Even in patients with more advanced AFib, there is still about an 80 percent success rate when using adjunctive ablation strategies. If the first ablation is unsuccessful, most patients experience significant improvement with a second ablation procedure.

Treatment procedures for atrial fibrillation

Your treatment plan you will be decided based on several factors.

Use of Transesophageal Echocardiography to Guide Cardioversion in Patients with Atrial Fibrillation

The conventional treatment strategy for patients with atrial fibrillation who are to undergo electrical cardioversion is to prescribe warfarin for anticoagulation for three weeks before cardioversion. It has been proposed that if transesophageal echocardiography reveals no atrial thrombus, cardioversion may be performed safely after only a short period of anticoagulant therapy.

What clinical trials of ablation for atrial fibrillation tell us – and what they do not

Randomized clinical trials have evaluated ablation in several patient populations, including symptomatic patients as first-line or second-line therapy, asymptomatic patients, and patients with heart failure. These trials clarify the durability of ablation in arrhythmia control, clarify quality-of-life improvement, and identify patient populations in whom ablation may be expected to improve clinical outcomes.