Elderly-onset Atrial Fibrillation
Atrial fibrillation that first develops in patients aged 75 or older, often presenting with different characteristics and management considerations.
Full Definition
Elderly-onset atrial fibrillation refers to new-onset atrial fibrillation occurring in patients aged 75 years or older, representing a distinct clinical entity with unique epidemiological and therapeutic considerations. This condition often presents with more severe symptoms, higher stroke risk, and greater complexity in anticoagulation decisions due to increased bleeding risk. Elderly-onset atrial fibrillation is frequently associated with multiple comorbidities, structural heart disease, and may be precipitated by acute illness, surgery, or medication changes. The arrhythmia tends to be more persistent and less responsive to rhythm control strategies, often requiring a rate control approach with careful attention to medication tolerability and drug interactions in the context of polypharmacy.
Usage
Usage note: Age threshold of 75 years is commonly used but may vary between studies.
In Context
- "The patient's elderly-onset atrial fibrillation was managed with rate control and anticoagulation given her high stroke risk." — Geriatric cardiology note
- "Elderly-onset atrial fibrillation often requires more conservative rhythm management strategies." — Treatment planning documentation