POTS - definition, diagnosis and symptoms

[ChronicallyOverIt]

Sorry, only POTS is.

POTS implies that there exists a syndrome where tachycardia upon standing is key to the syndrome. That doesn’t seem to be the case, and regardless it’s pure speculation.

OI is just «intolerance to not being horisontal». The use of HR to measure OI is flawed for much of the same reasons as for POTS - HR might not be relevant at all.

If you can’t call it Postural orthostatic tachycardia syndrome what do you call it? All POTS patients have the same symptom of heart rate staying abnormally elevated after standing, that not a syndrome?

Syndrome: a group of symptoms which consistently occur together, or a condition characterized by a set of associated symptoms.

 

[ChronicallyOverIt]

I thought tachycardia referred to a resting HR above 100 bpm? So POT would be resting HR > 100 bpm while standing but not lying down?

That is not POTS. If that was the criteria everyone would have POTS. The postural and orthostatic part you are completely ignoring.

It’s defined a jump in 30 BPM sustained over 10 minutes when going from lying to standing. Key is sustained.

 

[Utsikt]

If you can’t call it Postural orthostatic tachycardia syndrome what do you call it?

Call it what it is: OI. That’s the important part, that you get unwell when not horisontal.

All POTS patients have the same symptom of heart rate staying abnormally elevated after standing,

Yes, because POTS has been defined that way. That argument is circular.

that not a syndrome?

There is nothing that indicated that >30 bpm HR increase when standing is the sensible defining or diagnostic feature when trying to pick out people that feel unwell then standing/sitting and where it might be for the same reasons. There is also nothing to indicate that lowering the HR of the patient helps with their OI.

 

[Utsikt]

That is not POTS. If that was the criteria everyone would have POTS.

I was responding to a question about POT there, not POTS.

The postural and orthostatic part you are completely ignoring.

Where?

 

[ChronicallyOverIt]

Call it what it is: OI. That’s the important part, that you get unwell when not horisontal.

Yes, because POTS has been defined that way. That argument is circular.

POTS is under OI but it is with the increase of BPM. OI does not have to have the increase in BPM. Again it’s a syndrome since it has a collection of distinct symptoms, one of those being that increase in BPM.