AF Symposium 2015: A-Fib Doubles Silent Stroke Risk and is Associated with Dementia
Dr. John Day of the Intermountain Heart Institute, discussed how A-Fib doubles the risk of having a silent stroke. Many studies have shown that A-Fib is independently associated with dementia. “AF is associated with a higher risk for cognitive impairment and dementia, with or without a history of clinical stroke.”
In one study of 11,723 patients, those with arrhythmia were 4½ times more at risk of developing dementia.
Dr. Day described four possible mechanisms that may lead to A-Fib dementia:
1. Macro/Micro Thromboembolism (strokes)
2. Cerebral Bleeds
3. Weakened Cerebral Blood Flow
4. Systemic Inflammation
For more details about A-Fib and dementia, read my complete summary of Dr. John Day’s 2015 AF Symposium report.