Intermediate
Technical
In the Industry Vocabulary Test
atrial fibrillation
A common cardiac arrhythmia characterized by irregular and rapid atrial contractions.
Full Definition
Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia, characterized by disorganized electrical activity in the atria leading to irregular ventricular response. It significantly increases stroke risk due to potential thrombus formation in the left atrial appendage. AF is classified as paroxysmal, persistent, or permanent based on duration and response to cardioversion. Management typically involves rate control, rhythm control, and anticoagulation strategies.
Usage
Usage note: Always spell out on first use in patient-facing documents; AF acceptable in clinical notes.
In Context
- "The patient presented with symptomatic atrial fibrillation requiring immediate cardioversion." — Clinical case report
- "Long-term atrial fibrillation management includes anticoagulation to reduce stroke risk." — Treatment guidelines
Also known as
AF
AFib
Contrasted with
sinus rhythm
normal sinus rhythm
Don't confuse with
atrial flutter
atrial tachycardia