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      Response of Plasma Renin Activity to Postural Change in Vasovagal Syncope in Children, with Observations on Syncope

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          Abstract

          37 children aged 7–14 years with a history of repetitive fainting (vasovagal syncope) were studied. Plasma renin activity (PRA), blood pressure and heart rate were measured before and after standing for 15 min. Standing PRA was significantly higher in cases of fainting (n = 14) than in cases of nonfainting (n = 23). A significant positive correlation was observed between PRA and fall in systolic blood pressure on standing in cases of fainting, but not in cases of nonfainting. These findings suggest that the renin-angiotensin system may respond to the fall in blood pressure in children subject to fainting, unlike their adult counterparts previously reported.

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          Author and article information

          Journal
          HRE
          Horm Res Paediatr
          10.1159/issn.1663-2818
          Hormone Research in Paediatrics
          S. Karger AG
          1663-2818
          1663-2826
          1986
          1986
          28 November 2008
          : 23
          : 3
          : 147-150
          Affiliations
          Department of Paediatrics, Niigata University School of Medicine, Niigata, Japan
          Article
          180310 Horm Res 1986;23:147–150
          10.1159/000180310
          3512398
          © 1986 S. Karger AG, Basel

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          Pages: 4
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