目的探讨直立不耐受患儿生活质量的现状及其影响因素。
Objective to study the quality of life (QOL) and influencing factors of children with Orthostatic Intolerance.
当交感肾上腺系统不能维持直立位的脑灌注压时，就会发生直立不耐受。
Orthostatic intolerance results when the sympathoadrenal system is unable to maintain cerebral perfusion pressure in the upright posture.
当交感肾上腺系统不能维持直立位的脑灌注压时，就会发生直立不耐受。
Orthostatic intolerance results when the sympathoadrenal system is unable to maintain cerebral perfusion pressure in the upright posture.
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