기립성 못견딤증: 기립성 빈맥 증후군 = Orthostatic Intolerance: Postural Tachycardia Syndrome

다국어 초록 (Multilingual 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 ≥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.

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