What is atrial fibrillation?
Atrial fibrillation (AFib) is an irregular, fast heart rhythm that starts in the top of your heart.
Is AFib dangerous?
Yes. AFib keeps blood from flowing like it should from the top of your heart to the bottom. This can cause blood clots, which can lead to a stroke, heart failure and even death.
What causes AFib?
- Age – Your risk grows as you get older.
- High blood pressure.
- Coronary artery disease ("hardening"/narrowing of the arteries).
- Heart valve disease.
- Heart failure.
- Other heart problems.
- Obesity.
- Sleep apnea.
- Thyroid disease.
- Lung disease.
How does AFib make me feel?
If you have AFib, you may:
- Have heart palpitations. These can feel like your heart is pounding, beating very fast or fluttering.
- Feel very tired.
- Get dizzy or feel faint.
- Have chest pain or pressure.
- Get short of breath.
- You may not have any symptoms. But, even without them, AFib can lead to a stroke and make your heart weak.
Can I be tested for AFib?
- If you think you have AFib, your doctor will check your heart rate and rhythm and talk to you about your symptoms.
- You will have an electrocardiogram (EKG/ECG) and may need to wear a heart rhythm monitor to get more information.
What can I do if I have AFib?
Your doctor will talk to you about the best treatment for you. You may need to:
- Take medicine to prevent blood clots/stroke.
- Take medicine to control your heart rate or rhythm.
- Have a procedure.
- Get treated for health problems that may be causing your AFib.
You may also need to:
- Lose weight.
- Get regular exercise.
- Cut back on caffeine and alcohol.
- Quit smoking.
