Doctor's Notes on Atrial Fibrillation (AFib)
Atrial fibrillation is an irregular heart rhythm (arrhythmia) that is irregular, often rapid heart rhythm that causes the atrial chambers of the heart to beat rapidly. Signs and symptoms of atrial fibrillation (also termed A fib, AFib, A-fib) may include
- palpitations (sensation of a rapid and/or irregular heartbeat),
- dizziness or lightheadedness,
- chest pain and/or angina,
- shortness of breath and/or
The cause of atrial fibrillation is due to multiple sources of impulses in the atria that travel through the atria at the same time and cause irregular usually rapid contractions of the atria that are not correlated with ventricular contractions although ventricular contractions are also frequently increased. Other cardiac conditions may eventually cause atrial fibrillation. For example, heart valve disease, ventricular hypertrophy, coronary heart disease, congestive heart failure, advancing age and others.
Atrial Fibrillation (A-Fib) : Test Your Medical IQ QuizQuestion
Atrial fibrillation is a(n) ...See Answer
Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.