This 2024 study looked at three methods of CO rebreathing and found discrepancies: Duplicate measures of hemoglobin mass within an hour:...
Different angle of dicussion: We know that blood volume decreases when activity levels decrease. How could researchers distinguish between...
Hmm, I thought that the recent articles that I have read found that healthy controls had a decrease in cerebral blood flow of less than 10%, and...
@EndME , the first (?) article describing POTS in what you might call the modern era was focused on idiopathic hypovolemia rather than orthostatic...
Article about CO rebreathing: Validation of a clinically applicable device for fast and accurate quantification of blood volume...
Apologies. Have fixed this. Thank you for pointing it out.
This is why the 30BPM increase is only one part of the diagnostic criteria. The patient also has to be symptomatic: chronic OI symptoms of more...
Complete guess on my part: The researchers included male controls even though there weren't any male subjects because they were interested in...
I don't think there is any good data on the male/female make-up of POTS patients, but this survey (which obviously suffers from being a survey,...
It is touched on in the paper at several points – I am not scientifically literate enough to comment on what is said about it. They compare...
The researchers also used a technique called segmental body impedance, which I don't know much about. Would be interested to hear people's...
The device used in the study: https://detalo-health.com/ Carbon monoxide rebreathing is not a brand new testing method, has been used at NASA for...
Blood Volume Deficit in Postural Orthostatic Tachycardia Syndrome Assessed by Semi-Automated Carbon Monoxide Rebreathing Kulapatana, Urechie,...
@Haveyoutriedyoga, thank you for the link. I asked my daughter and she did consider dumping syndrome a some years ago, but it was before we knew...
A complicating factor is that she had her colon removed in her twenties due to ulcerative colitis, and she noticed after the surgery that this...
My reason for asking is that since being unwell my daughter has been struggling with uncharacteristic irritable and even angry outbursts that...
Disclosure: Question relates to my daughter, who has been tentatively diagnosed with OCHOS, orthostatic cerebral hypoperfusion syndrome. I hope...
Some of the questions raised in this thread are addressed in this video from the company: [MEDIA] Sorry, it is a long video, and it was my...
Also, I wonder whether there were any common findings between this study and this (much smaller) one on potential biomarkers in POTS...
I am interested in the SOd3 finding, but can’t quite follow the information in the article. Was it raised or lowered? And what might this mean?...
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