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Reduce AFib-related stroke risk

Understanding atrial fibrillation and its connection to stroke risk helps you take control, so you can worry less and enjoy life more.

1 out of 3 people

with AFib will have a stroke in their lifetime2

5x higher stroke risk

in people with AFib vs. people with a regular heartbeat1

4 out of 5 people

with AFib taking a blood thinner would be willing to try a different treatment to reduce stroke risk3

What is Atrial Fibrillation?

Atrial fibrillation, also called AFib or AF, is a common kind of irregular heartbeat. Learn about types of AFib, symptoms and risks, and treatment for AFib, below.

Non-Valvular Atrial Fibrillation vs Valvular Atrial Fibrillation

There are two main types of atrial fibrillation: valvular and non-valvular. While valvular AFib is caused by a heart valve problem or condition such as narrowing , repair or replacement, non-valvular AFib (NVAF) refers to atrial fibrillation that is not caused by a heart valve problem and is the most common type of AFib.1,2

Treatment options may be different for non-valvular and valvular atrial fibrillation, but the effects of the disease are often the same.1,2

To better understand these effects, it’s helpful to know a little about how your heart works.

Atrial Fibrillation Symptoms

People with AFib may experience one or more of the following symptoms3:

  • Heart palpitations (a sudden pounding, fluttering, or racing feeling in the chest)
  • Lack of energy, feeling tired
  • Dizziness, or a feeling of faintness or light-headedness
  • Chest discomfort (pain, pressure, or tightness in the chest)
  • Shortness of breath

How does atrial fibrillation cause stroke?

Diagram of normal heart.

Your heart has an electrical system that controls the rate and rhythm of your heartbeat. In a healthy heart, the electrical signals produce a steady heartbeat and blood pumps normally.4

Diagram of disorganized signals in the atria.

In atrial fibrillation (AFib), the electrical signals are disorganized and the top two chambers of the heart, the atria, beat rapidly and irregularly (fibrillate).4

Diagram of blood clot in left atrial appendage.

Because blood isn’t pumped out of the heart normally, it’s easier for blood cells to stick together and form clots in an area of the heart called the left atrial appendage (LAA).5 If a blood clot escapes, it can travel through the bloodstream to the brain and cause a stroke.4,5

Reduce your AFib-related stroke risk

Orange icon of a medication bottle.

Blood thinners are the first line therapy option for AFib

The most common treatment for managing AFib-related stroke risk is the use of anticoagulants, such as vitamin K antagonist (VKA) and novel oral anticoagulants (NOACs).

Warfarin and NOACs effectively reduce the risk of cardioembolic stroke, however they are not well tolerated by some patients and carry a risk for bleeding complications.

  • Risk of bleeding 
  • High rate of discontinuation (at 2 years, 50% of patients on warfarin and 30% on NOAC treatment)
  • Interactions with certain foods and medications (Warfarin)
  • Frequent blood tests and dose adjustment (Warfarin)
Orange icon of the WATCHMAN Implant.

The WATCHMAN Implant is for people who need to consider an alternative to blood thinners

Ready to leave blood thinners behind?

WATCHMAN Implant is a safe, one-time alternative to blood thinners to reduce stroke risk.

The WATCHMAN Implant device reduces the risk of stroke by closing off the left atrial appendage in the heart, where more than 90% of stroke-causing clots are formed.2

Please talk with your doctor about the risks and benefits of the WATCHMAN Implant.

Questions to ask your doctor

If you’ve recently been diagnosed with atrial fibrillation, or if you’ve had symptoms of AFib, here are some questions to ask your cardiologist:

  • What is the cause of my atrial fibrillation?
  • What kinds of tests will I need?
  • Can a procedure restore my heart rhythm?
  • Should I take medicine to control my heart rate?
  • What treatment options can reduce my stroke risk?
  • What are the risks and benefits of these treatment options?
  • What is the long-term effect of AFib on my heart? 

If you’re already being treated for AFib and you need an alternative to blood thinners, find out if WATCHMAN could be right for you. 

Living with the WATCHMAN Implant

For people taking blood thinners, everyday small cuts can turn into a big bleeding event. Hear what these people feared on blood thinners and why they chose the WATCHMAN Implant to reduce AFib-related stroke risk.  


 

Understanding AFib risks factors

AFib can happen when there are changes or damage to the heart tissue or the electrical system of the heart.2 

Several factors can increase the risk of developing AFib, including: 2

  • Aging — the risk of AFib increases with age
  • Family history — having relatives with AFib increases your risk of AFib 
  • Unhealthy lifestyle habits — consuming alcohol or drugs, smoking, and stress can increase the risk of AFib 
  • Medical conditions — including heart disease, lung problems, kidney disease, thyroid problems, diabetes, and high blood pressure
  • Race — AFib is more common in the U.S. among white people than Black, Hispanic or Asian people; however, Black people have a higher risk of serious complications
  • Medical procedures — the risk of AFib is higher in the days or weeks following some types of surgery, like heart surgery  

How is Atrial Fibrillation treated?

There are different ways to treat atrial fibrillation depending on your symptoms and the information gathered from your diagnostic tests. Your doctor will discuss the options with you and help you decide what treatment is the most appropriate for your condition and your lifestyle.

If you’ve been diagnosed with AFib, there are several treatment options available to reduce your risk of stroke and manage symptoms.

Cardioversion

Cardioversion can be a scheduled procedure or used in emergencies.

Cardioversion can be a scheduled procedure or used in emergencies.
It involves delivering low-energy shocks to the heart in order to quickly restore a normal heart rhythm. Cardioversion can also be conducted with medication. While the risks are low, cardioversion is not generally a long-term solution. 

Drug treatments such as blood thinner

Drug therapy is often the first course of treatment for atrial fibrillation. A variety of different drug treatments are available, which fall into two main types:

  • Anti-arrhythmia drugs, such as sodium channel blockers and beta blockers, intended to control the rhythm and speed at which your heart beats
  • Blood-thinning drugs intended to reduce the risk of stroke by limiting the blood’s ability to clot

Your doctor will assess how well you tolerate the drugs, how they impact your lifestyle and how well they are controlling your atrial fibrillation and risk of stroke. This will help determine if they are a satisfactory treatment for you or if a different approach should be considered.

Left Atrial Appendage Closure (LAAC)

Blood is pumped from the left upper chamber of the heart (left atrium) to all parts of the body, including the brain. The left atrial appendage is the part of the heart where blood can pool and clot if the upper chambers (atria) of the heart are not contracting properly. By closing off this „clot-making reservoir“, the risk of stroke is significantly reduced and the need for long-term blood-thinning drugs can be avoided.

FARAPULSE™ Pulsed Field Ablation (PFA)*

The FARAPULSEᵀᴹ PFA system has been specifically developed to offer a next-generation ablation method with excellent precision and accuracy.

References: 

1. Noubiap JJ, Tang JJ, Teraoka JT, et al. Minimum National Prevalence of Diagnosed Atrial Fibrillation Inferred From California Acute Care Facilities. J Am Coll Cardiol. 2024 Oct 15;84(16):1501-1508.

​2. Atrial Fibrillation Causes and Risk Factors. National Heart, Lung, and Blood Institute website. Updated November 30, 2022. Accessed March 6, 2025. https://www.nhlbi.nih.gov/health/atrial-fibrillation/causes

3. What Are the Symptoms of Atrial Fibrillation? American Heart Association website. Updated March 27, 2023. Accessed March 6, 2025. https://www.heart.org/en/health-topics/atrial-fibrillation/what-are-the-symptoms-of-atrial-fibrillation-afib-or-af

4. Treatment Options for Atrial Fibrillation. American Heart Association website. Updated March 27, 2023. Accessed March 6, 2025. https://www.heart.org/en/health-topics/atrial-fibrillation/treatment-and-prevention-of-atrial-fibrillation/treatment-options-of-atrial-fibrillation-afib-or-af

5. Atrial Fibrillation (Afib). Cleveland Clinic. Available at: https://my.clevelandclinic.org/health/diseases/16765-atrial-fibrillation-afib. Accessed June 10, 2024.

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