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Caltech Develops First Noninvasive Method to Continually Measure Blood Pressure

caltech.edu

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Re: Caltech Develops First Noninvasive Method to Continually Measure Blood Pressure

#31

Post by HPsquared »

coldcode wrote: post #4

As a person who had a hypertensive crisis late last year, nothing boils my blood (yes, a pun, I am fine now) more than how people measure blood pressure incorrectly in doctors offices and even hospitals. There are many different things than can increase a BP measurement above the "baseline" including talking, moving around, not having rested but also just waking up, not being in a supported position, only a single va…

I find doctors and nurses rush things too much in general. I guess they're paid flat-rate, like mechanics?

Re: Caltech Develops First Noninvasive Method to Continually Measure Blood Pressure

#32

Post by dredmorbius »

Mistletoe wrote: post #8
dredmorbius wrote: post #2

This approach has been tried before. Bill Softky describes a startup he'd worked for using a similar sound-transduction continuous non-invasive blood-pressure monitoring technique. It ... had problems: Our non-invasive device was supposed to measure blood pressure just as accurately [as an arterial line], but without the cutting, using specially-sculpted sonic vibrations and fancy algorithmic analysis, which was my j…

It’s just a blurb from a college PR team. As someone that came from academia, they don’t have to have solved any of that because these are generally pretty worthless. It can be as small as someone in a lab discovered how to do the smallest thing and the college wants to run with it to look good.

I'm aware. Which is why I'm pointing to someone who chased that "first" achievement for years, and has the scars to show for it.

Re: Caltech Develops First Noninvasive Method to Continually Measure Blood Pressure

#33

Post by ineedaj0b »

HPsquared wrote: post #31
coldcode wrote: post #4

As a person who had a hypertensive crisis late last year, nothing boils my blood (yes, a pun, I am fine now) more than how people measure blood pressure incorrectly in doctors offices and even hospitals. There are many different things than can increase a BP measurement above the "baseline" including talking, moving around, not having rested but also just waking up, not being in a supported position, only a single va…

I find doctors and nurses rush things too much in general. I guess they're paid flat-rate, like mechanics?

there's just no time. we have to write down everything you tell us, we have to come off genial, make you sure you aren't lying about something or mistaken, and fix you.

Re: Caltech Develops First Noninvasive Method to Continually Measure Blood Pressure

#34

Post by benmanns »

dgacmu wrote: post #26
coldcode wrote: post #4

As a person who had a hypertensive crisis late last year, nothing boils my blood (yes, a pun, I am fine now) more than how people measure blood pressure incorrectly in doctors offices and even hospitals. There are many different things than can increase a BP measurement above the "baseline" including talking, moving around, not having rested but also just waking up, not being in a supported position, only a single va…

It's frustrating. I usually bike to the doctor's office, and every time I warn them that they're going to get a systolic 10 higher than if they'll wait until the end of the appointment. They don't wait. The tech-taken entry gets put in the EMR. The doctor takes my BP again at the end, says "oh, great" and that reading gets ignored. :p As a sibling comment noted, I ended up deciding to just watch my BP at home every n…

However, as discovered during a family heart crisis, medical professionals will routinely ignore any kind of heart rate or blood pressure readings that you take at home. In my experience, it's not until they see the same measurement during the ($$$) ambulance ride that they take it seriously.

Re: Caltech Develops First Noninvasive Method to Continually Measure Blood Pressure

#35

Post by ineedaj0b »

blackeyeblitzar wrote: post #30
coldcode wrote: post #4

As a person who had a hypertensive crisis late last year, nothing boils my blood (yes, a pun, I am fine now) more than how people measure blood pressure incorrectly in doctors offices and even hospitals. There are many different things than can increase a BP measurement above the "baseline" including talking, moving around, not having rested but also just waking up, not being in a supported position, only a single va…

Totally agree and I think the malpractice comes from laziness and a lack of interest in their patients. If they cared, they would do it correctly per the guidelines they hand out to patients themselves! By which I mean these: https://www.heart.org/en/news/2020/05/22/how-to-accurately-m... It is especially bizarre to me when they don’t listen to patients and make medical decisions like deciding prescriptions and dosag…

i don't think it matters too much. we don't want to take it right after you just exercised obviously, but even taking it once is indicative of things. 'i have white coat etc. i have nerves!' these are all things we don't mind seeing. all those those things connect.

using up time to double check blood pressure is so/so useful but generally a waste. a patient's labs tell much more, and are better to hedge suspicions against.

white coat hypertension at 320lbs!? alright sir we can check again if you like...

Re: Caltech Develops First Noninvasive Method to Continually Measure Blood Pressure

#36

Post by barbazoo »

HPsquared wrote: post #31
coldcode wrote: post #4

As a person who had a hypertensive crisis late last year, nothing boils my blood (yes, a pun, I am fine now) more than how people measure blood pressure incorrectly in doctors offices and even hospitals. There are many different things than can increase a BP measurement above the "baseline" including talking, moving around, not having rested but also just waking up, not being in a supported position, only a single va…

I find doctors and nurses rush things too much in general. I guess they're paid flat-rate, like mechanics?

They have a million patients. I bet no one on that moment thinks, oh I’m only paid $10.75 for this, I better rush this so I can earn more money.

Re: Caltech Develops First Noninvasive Method to Continually Measure Blood Pressure

#38

Post by hereme888 »

coldcode wrote: post #4

As a person who had a hypertensive crisis late last year, nothing boils my blood (yes, a pun, I am fine now) more than how people measure blood pressure incorrectly in doctors offices and even hospitals. There are many different things than can increase a BP measurement above the "baseline" including talking, moving around, not having rested but also just waking up, not being in a supported position, only a single va…

I'm a resident physician and I deny having my BP taken in outpatient clinics.

The techniques used are ridiculously inappropriate:

"Ok, Mr. So-and-so, come with me." calls the nurse, as the pt who is irritated for having to wait 30 minutes quickly gets up to walk along unknown hallways, while rushing to finish a phone conversation, stressed and not knowing where to turn next..."Ok, now we're going to weigh you on this scale" while the pt thinks 'oh man, I've probably gained weight', followed by "ok, now we're going to measure your blood pressure." 'I don't want BP meds...let me try to relax...breathe slooowly...but I don't want the nurse to notice I may be trying to cheat this sudden examination.'

That's why the most appropriate way nowadays is to measure it at home, and keep a BP log.

Re: Caltech Develops First Noninvasive Method to Continually Measure Blood Pressure

#39

Post by hn72774 »

teamspirit wrote: post #27
coldcode wrote: post #4

As a person who had a hypertensive crisis late last year, nothing boils my blood (yes, a pun, I am fine now) more than how people measure blood pressure incorrectly in doctors offices and even hospitals. There are many different things than can increase a BP measurement above the "baseline" including talking, moving around, not having rested but also just waking up, not being in a supported position, only a single va…

I had hypertension for about 15 years and after quitting drinking and smoking no longer do. I still suffer from white cost hypertension regularly and frequently have to tell nurses to just press the button again - second time drops back to normal range with a drop of about 20/10.

I had it too. When I was under stress, sometimes I could hear my pulse in my ears like a whooshing sound.

I stopped drinking and my BP is now completely normal, and RHR is low 40's. Sleep is much better too.

Re: Caltech Develops First Noninvasive Method to Continually Measure Blood Pressure

#40

Post by samstave »

coldcode wrote: post #4

As a person who had a hypertensive crisis late last year, nothing boils my blood (yes, a pun, I am fine now) more than how people measure blood pressure incorrectly in doctors offices and even hospitals. There are many different things than can increase a BP measurement above the "baseline" including talking, moving around, not having rested but also just waking up, not being in a supported position, only a single va…

This would be the best use of the "AI Pin" fiasco of a device;

Create an AI pin that takes in all the activity associated with the BP monitoree, including telemtry for environment, movement, and diet. if I had a pin that did this (and recorded all audio for the day, and snapped pictures when I wanted and transcribed all audio via whisper and I had a full searchable day-runner...

Yay!

EDIT: The above desire is fully capable of a phone - except battery life...

I have a boatload of old phones. It would be interesting to just build a mini-build for an android phone to simply be a daily recorder. to capture audio/video only and run a slow app that will transcribe all audio to text on the device (even if it does so once its on lan, then it connects to an endpoint running locally on your docker desktop fast api to capture the audio that auto uploads as soon as on home lan. Sorts the files and pics and everything onto the NAS with simple txAI workflow to ffmpeg as needed.

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