|
KMID : 1044320190210010030
|
|
Annals of Clinical Neurophysiology
2019 Volume.21 No. 1 p.30 ~ p.35
|
|
|
Prognosis of patients with postural tachycardia syndrome: a follow-up study
|
|
Kang Sa-Yoon
Kim Hong-Jun
Ko Keun-Hyuk
|
|
|
Abstract
|
|
|
Background: Postural tachycardia syndrome (POTS) refers to the presence of orthostatic intolerance symptoms associated with a heart rate increment of greater than 30 beats/min, usually up to 120 beats/min, on head-up tilt test. Symptoms related to POTS are usually lightheadedness, palpitations and tremor, but syncope can also occur. The pathophysiology of POTS is heterogeneous and its prognosis is uncertain.
Methods: We prospectively evaluated patients who met the criteria for POTS, at baseline and follow-up, using composite autonomic symptom scores and autonomic tests to assess the autonomic function. We compared the clinical and autonomic test results between baseline and follow-up.
Results: Sixty-eight patients met the inclusion criteria for POTS and forty-five patients were ultimately followed up for at least 1 year after baseline. The patients were predominantly young females (84%), with a mean age of 21 years. Most patients showed improved orthostatic symptoms and more than a quarter of patients had no longer met the criteria for POTS at follow-up.
Conclusions: Most patients had a benign outcome in that they could resume their daily activities without great limitations. Our results demonstrated a relatively favorable prognosis in most patients with POTS.
|
|
|
KEYWORD
|
|
|
Autonomic nervous system, Orthostatic intolerance, Postural tachycardia syndrome, Prognosis
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
 
|