体位性心动过速综合征为一种直立不耐受伴心动过速的疾病。发病机制可能与中心低血容量及自主神经功能障碍有关。此外,血管活性介质(组织胺)释量增加以及肌泵功能缺陷亦起有重要作用。按体位性心动过速综合征亚型实施个体化给药方案,可获较好的疗效。 Postural tachycardia is an upright intolerance with tachycardia. The pathogenesis may be related to central hypovolemia and autonomic dysfunction. In addition, increased vaso-active mediators (histamine) and muscle pump dysfunction also play an important role. According to the body type of tachycardia syndrome subtype of individualized dosing regimen, can be a better effect.