"What causes postural hypotension in amyloidosis?"
Postural hypotension (also called orthostatic hypotension) in amyloidosis occurs when blood pressure drops significantly upon standing. This happens because amyloidosis can damage the autonomic nerves that help regulate blood pressure. When you stand up, gravity naturally Show Full Answer
"What causes postural hypotension in amyloidosis?"
Postural hypotension (also called orthostatic hypotension) in amyloidosis occurs when blood pressure drops significantly upon standing. This happens because amyloidosis can damage the autonomic nerves that help regulate blood pressure. When you stand up, gravity naturally pulls blood toward your legs, and in healthy people, the body quickly adjusts to maintain blood flow to the brain.
However, in amyloidosis, this adjustment mechanism doesn't work properly, making it harder for your body to maintain stable blood pressure when changing positions. Common triggers that can worsen postural hypotension include:
- Extended periods of bed rest
- Dehydration
- Standing up too quickly
- After eating meals
This condition affects 40-60% of people with hereditary ATTR amyloidosis and can lead to dizziness, lightheadedness, or even fainting when standing up. It's important to discuss these symptoms with your healthcare provider as they can increase fall risk.
July 25, 2025
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