Many seemingly unrelated aspects of your health can contribute to or be causative factors in the development of AFib. They include heart or lung disease, as well as other conditions such as diabetes, kidney disease, or thyroid disease, and even sleep apnea.1 If you don’t have any of these conditions, but they run in your family, this will also be important information that your doctor will use to evaluate your risk for AFib. Additionally, lifestyle factors such as excessive caffeine or alcohol consumption are potentially significant contributors.2 The common areas of concern are:

Heart Disease

The most common causes of AFib are associated with abnormalities or damage to the structure of the heart3, such as the following4:

  • Coronary artery disease
  • Heart valve disease
  • Rheumatic heart disease
  • Heart failure
  • Weakened heart muscle (cardiomyopathy)
  • Heart birth defects
  • Inflamed membrane or sac around the heart (pericarditis)
  • History of heart attack or heart surgery


Drinking alcohol or caffeine – especially in large amounts – has been known to trigger AFib episodes, along with smoking and the consumption of other stimulant drugs. Dealing with lots of stress and/or exhaustion can also trigger AFib.3

Age, Family History and Other Chronic Ailments

The older you are, the greater your risk for AFib. Some families do have a history of increased risk for AFib, which can also be linked to a history of other chronic conditions such as3:

  • Obesity
  • High blood pressure
  • Thyroid problems
  • Sleep apnea
  • Metabolic syndrome
  • Diabetes,
  • Chronic kidney disease
  • Lung disease

If you or anyone in your immediate family have any of these risk factors or have habit that may be putting you at risk for AFib, you should familiarize yourself with the symptoms of AFib so you can watch for them4.

Are you experiencing any symptoms of AFib?

1Cardiac Surgery, UCSF,
2Cedars-Sinai, Atrial Fibrillation,
3Mayo Clinic, Atrial Fibrillation – Symptoms and causes,
4WebMd, Atrial Fibrillation: Causes, Risks, and Triggers,

Caution: US law restricts this device to sale by or on the order of a physician. Important information: Prior to use, refer to the instructions for use supplied with this device for indications, contraindications, side effects, warnings and precautions.

The NAVISTAR® THERMOCOOL®, EZ STEER® THERMOCOOL® NAV, THERMOCOOL® SF NAV, and THERMOCOOL SMARTTOUCH® Catheters are FDA approved for the treatment of drug refractory recurrent symptomatic paroxysmal atrial fibrillation, when used with compatible three-dimensional electroanatomic mapping systems. Catheter ablation for AF may not be an option for you if you have any of the following conditions: certain recent heart surgery; prosthetic valves; active systemic infection; certain cancers; intracardiac thrombus, or an interatrial baffle or patch. Consult your physician to find out if catheter ablation is right for you.

As with any medical treatment, individual results may vary. Only a cardiologist or electrophysiologist can determine whether ablation is an appropriate course of treatment. There are potential risks including bleeding, swelling or bruising at the catheter insertion site, and infection. More serious complications are rare, which can include damage to the heart or blood vessels; blood clots (which may lead to stroke); heart attack, or death. These risks need to be discussed with your doctor and recovery takes time.

THERMOCOOL® Navigation Catheters are indicated for the treatment of recurrent drug/device refractory sustained monomorphic ventricular tachycardia (VT) due to prior myocardial infarction (MI) in adults.