Atrial Fibrillation

November 16, 2024

Understanding Atrial Fibrillation

Atrial fibrillation, often called A fib, is a common heart condition that affects many people, especially as they age.  If you or someone you know has been diagnosed with A fb, or if you’re curious about what it is, this article will help you understand the basics, including its causes, symptoms, risks and treatment options.

What is atrial fibrillation?

Atrial fibrillation is an irregular heartbeat (arrhythmia) that occurs when the electrical signals in the heart don’t work properly.  Instead of beating in a steady rhythm, the heart may flutter or beat very fast, which can lead to a variety of health issues.

Several factors can contribute to the development of A fib.  Having high blood pressure can strain the heart over time, making it more likely to develop A fib.  Conditions like coronary artery disease, heart valve issues, and previous heart attacks can lead to A fib.  The risk of developing A fib increases as people get older, especially for those over 60.  Certain conditions such as diabetes, thyroid problems, and lung diseases can increase the likelihood of A fib.  Factors like excessive alcohol consumption, smoking, obesity and a lack of physical activity can also contribute to A fib.  If someone in your family has had A fib, you might be at a higher risk as well

Symptoms of Atrial Fibrillation

Some people with A fib may not experience any noticeable symptoms, while others might have one or more of the following:

Palpitations, or a feeling of fluttering or a racing heart. 

Shortness of breath during normal activities.

Unusual tiredness or lack of energy

Dizziness or light headedness, feeling faint or weak

Chest discomfort or pain

If you experience any of these symptoms, especially chest pain or severe shortness of breath, it is important to seek medical attention right away.  If you experience other symptoms associated with A fib, check with your doctor.

Risk and Prognosis of Atrial Fibrillation

Atrial fibrillation is not just an annoying condition, it can lead to serious health problems.

One of the biggest risks of A fib is the increased chance of having a stroke.  When the heart beats irregularly, blood can pool in the heart and form clots.  If a clot travels to the brain, it can cause a stroke.

A fib can weaken the heart over time, leading to heart failure, where the heart is unable to pump enough blood to meet the body’s needs.

With prompt management and treatment, many people with A fib can live full and active lives.  Regular check-ups and following your doctor’s advice are key to managing the condition effectively.

Treatment Options for Atrial Fibrillation

There are multiple treatment options available that can help manage A fib.

Sometimes, simple lifestyle changes can make a big difference.  This includes eating a heart-healthy diet, exercising regularly, quitting smoking, and reducing alcohol intake

Your doctor may prescribe medications to help manage A fib.  Antiarrhythmics help restore the heart to a normal heartbeat.  These medications may have major side effects, however, and need to be closely monitored by your doctor.  In addition, they do not work for a good portion of patients.

Anticoagulants, or blood thinners, help prevent blood clots and reduce the risk of stroke.  Not everyone with A fib needs to use an anticoagulant.  Doctors typically assess your risk of stroke using a scoring system called the CHA2DS2-VASc score.  The factors considered include whether one has:

Congestive heart failure

High blood pressure

Age over 65

Diabetes Mellitus

Stroke or TIA history

Vascular disease

Age over 75 (two points)

Sex category (female)

If your score is 2 or higher, your doctor will probably recommend anticoagulation to help lower your risk of stroke.

Cardioversion is a procedure that uses electricity or medication to restore a normal heartbeat.  It can be done in a hospital setting and is often effective in treating A fib.  Often times it works for a while and a patient may go back into A fib.  If this happens more than twice, I would not recommend a third cardioversion as the benefit goes down each time the procedure is done.

Ablation is a procedure that targets the areas of the heart causing the irregular heartbeat.  It can help to eliminate A fib.  The best candidates for ablation therapy typically include those with significant symptoms from A fib that affect their quality of life, individuals who have not responded well to antiarrhythmic medications or cannot tolerate their side effects, patients with frequent episodes of A fib that are difficult to control with medication.  Younger patients and patients who have not been in A fib for a long period usually benefit more from ablation than more elderly patients.

For some patients the focus is on controlling the heart rate rather than restoring a normal rhythm.  Medications can help keep the heart rate at a manageable level.

If you experience any symptoms of atrial fibrillation, or if you have risk factors for heart disease, it is important to talk to your doctor.  Early detection and treatment can make a significant difference in our health and quality of life.  Remember, taking care of your heart is essential.  Regular check-ups and open communication with your healthcare provider are key steps to maintain a healthy heart.

Conclusion

Atrial fibrillation is a common heart condition that can lead to serious health issues if left untreated.  By understanding the causes, symptoms, risk and treatment options, you can take proactive steps to manage your heart health.  Don’t hesitate to reach out to your doctor if you have any questions or concerns about A fib. Your heart will thank you.

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