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背景:血管迷走神经性晕厥是由复杂的大脑和心血管反射机制致使全身血管扩张和心动过缓而导致的脑血流灌注不足所引起。方法:在复发性血管迷走神经性晕厥患者中,前瞻性研究了体位血压试验(PBT)和头高
BACKGROUND: Vasovagal syncope is caused by a complex cerebral and cardiovascular reflex mechanism resulting in inadequate cerebral blood flow due to systemic vasodilation and bradycardia. Methods: In patients with recurrent vasovagal syncope, prospective study of the position blood pressure test (PBT) and head height