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Heart & Vascular

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Arrhythmia - Afib

It is the cause of 15 percent of preventable strokes among Americans,
and approximately 2 million Americans have it.

The condition is atrial fibrillation (Afib).

H2H - Fall 2011 Afib

Afib is the most common heart rhythm disorder. It is a condition that gets progressively worse in most people, but it is treatable, particularly if patients seek help early, when they first begin having symptoms or when their doctor first suspects it.

Understanding the “ABCs” – the basics of atrial fibrillation – is the first step in preventing its harmful complications, including stroke and heart failure.

About Atrial Fibrillation

When the heart beats regularly, its two upper chambers (atria) are beating in sync or in rhythm with the heart’s two lower chambers (ventricles). Atrial fibrillation is a condition in which the heart’s atria quiver and do not participate in blood transport.

This creates areas of slow blood flow that predispose to blood clot formation. If a blood clot breaks free and lodges in an artery leading to the brain, a stroke occurs. Blood thinners, when appropriate, dramatically reduce the risk of stroke.

Common symptoms of Afib include heart palpitations from erratic and irregular ventricular contractions (steady or come and go), shortness of breath, fatigue and the sensation of feeling weak from reduced cardiac output. Some patients experience no symptoms and find out they have the condition during a regular visit to their primary care physician. Asymptomatic patients still remain at risk for stroke. It is one more reason why people of all ages, particularly those over 65, should see their doctor at least once a year.

Aging is a risk factor for Afib. People age 65 and older are more likely to develop the condition than younger individuals. Other risk factors include:

  • Congestive heart failure
  • Diabetes
  • High blood pressure
  • Sleep apnea
  • Family history of Afi b
  • Alcohol and stimulants
  • Coronary artery disease
  • Thyroid disorder
  • Obesity

Treating Atrial Fibrillation

H2H Summer 2013, TAVR 2