Monitoring Carotid Blood Flow Using In-Ear Wearable Device During Tilt-Table Testing, 2023, Hemantkumar Tripathi MD et al

No info

https://www.sciencedirect.com/science/article/abs/pii/S2405500X23000907?via=ihub

A research letter:
https://www.jacc.org/doi/10.1016/j.jacep.2023.02.002

 

https://twitter.com/user/status/1639707935356907520

 

Very neat.

 

It would be ideal to compare the two techniques. Cerebral blood flow via the internal carotid artery is subject to cerebral autoregulation in order to protect the brain from under- or over- perfusion. The external system is probably negatively correlated, eg external carotid flows increase in order to shunt blood away and protect brain from over-circulation and vice versa.

Gravitational effects on intracranial pressure and blood flow regulation in young men: a potential shunting role for the external carotid artery (2020)
Dynamic cerebral autoregulation is unrelated to decrease in external carotid artery blood flow during acute hypotension in healthy young men (2016)

See also —
Stat Pearls: Physiology, Cerebral Autoregulation

Also this paper looks at diurnal and sex differences in cerebral autoregulation (none found) —
Comparison of diurnal variation, anatomical location, and biological sex within spontaneous and driven dynamic cerebral autoregulation measures (2020)

 

Has anyone preordered this? I tried, but no luck. I would assume one needs a US debit/credit card.

https://www.stat-health.com/

 

https://twitter.com/user/status/1724853804028379391

 

You can contact them on X or instagram.

 

That’s so interesting @Mij

I am about to have a tilt table test which I am dreading last one I had was a normal(ish?) result but I felt horrifically sick for a long time following it.

Shame I couldn’t have got one of these to take in with me to check it out. I’d thought due to how I did have symptoms while tilted but got normal results, maybe my OI was neurological rather than Cardiovascular.

ps I don’t fancy the subscription on something pretty much untested just yet. I hope if it works out it will be an affordable intervention for individuals or it works so well healthcare providers will fund it for patients.

 

Here is another thread on this Stat-Health device. I found the Solve ME/CFS webinar informative.

https://www.s4me.info/threads/new-i...nd-dizziness-and-brain-fog.33688/#post-483074