Annals of Clinical Neurophysiology

The Korean Society of Clinical Neurophysiology (대한임상신경생리학회)
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Orthostatic Intolerance: Postural Tachycardia Syndrome

기립성 못견딤증: 기립성 빈맥 증후군

  • Park, Ki-Jong (Department of Neurology, School of Medicine, Gyeongsang National University, Gyeongsang Institute of Health Science)
  • 박기종 (경상대학교 의학전문대학원 신경과학교실, 건강과학연구원)
  • Received : 2009.05.21
  • Accepted : 2009.05.25
  • Published : 2009.06.30
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Abstract

Orthostatic intolerance is defined as the development of various symptoms during standing that are relieved by recumbency. Postural tachycardia syndrome (POTS) is another nomenclature of orthostatic intolerance. POTS characterized by a heart rate increase ${\geq}30$ bpm from supine to standing or >120 bpm at standing without orthostatic hypotension. POTS is a heterogenous in presentation with various pathophysiologic mechanisms. Important mechanisms are hypovolemia, denervation, hyperadrenergic and deconditioning state. There are presented as lightheadness or dizziness, palpitations, presyncope, sense of weakness, tremulousness, shortness of breath. POTS are classified under 3 groups that are neuropathic, hyperadrenergic, and deconditioning POTS. Most patients can be improved from a pathophysiologically based regimen of management.

Keywords

References

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