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  • Title: [Autonomic nervous function of the patients with neurally mediated syncope].
    Author: Saitoh H, Ono T, Nomura A, Iwasaki Y, Ohno N, Matsumoto S, Kobayashi Y, Atarashi H, Katoh T, Kishida H, Hayakawa H.
    Journal: Rinsho Byori; 1998 Oct; 46(10):1043-8. PubMed ID: 9816917.
    Abstract:
    Although diagnosis of neurally mediated syncope (NMS) using head-up tilt (HUT) test has been established, the exact mechanism of NMS has not yet been elucidated. We evaluated beta and alpha-adrenergic function in NMS patients by pharmacological autonomic function test. The alpha-adrenergic sensitivity of NMS patients was significantly lower than that of control subjects. The patients who need low dose isoproterenol for provocation of syncope showed higher beta-adrenergic sensitivity than patients who developed syncope without isoproterenol. Thus, pharmacological autonomic function test was useful for evaluation of NMS patients.
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