The Postural Tachycardia Syndrome (POTS) can be diagnosed if certain clinical criteria are met.

Baseline status: recumbent without tachycardia


Criteria for the diagnosis of POTS:

(1) sustained tachycardia – one of the following:

(1a) increase >= 30 beats per minute from baseline for an adult

(1b) increase >= 40 beats per minute from baseline for a pediatric patient 12 to 19 years of age

(2) onset of tachycardia <= 10 minutes after standing up (postural change)

(3) without orthostatic hypotension

(4) not explained by another condition (prolonged bed rest, medication, etc).



• The increment in heart rate for children less than 12 years old is uncertain. >= 30 beats per minute will be used in the implementation.


Additional features:

(1) The standing heart rate is typically >= 120 beats per minute.

(2) The tachycardia may be accompanied by symptoms associated with autonomic overactvity and/or cerebral hypoperfusion.

(3) Accompanying symptoms are often relieved by recumbency.

(4) Raj (2013) specified that the findings should be present for >= 6 months.



• The criteria may not be applicable to some patients with baseline bradycardia.

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