缩短的头向上倾斜测试,指导神经心脏病发作性失眠时的缩压力下降
Mariavittoria Pitzalis1, Francesco Massari, Pietro Guida
1Institute of Cardiology, and Innovative Technologies for Signal Detection and Processing Center, University of Bari, Bari, Italy. mariavittoria.pitzalis@cardio.uniba.it
Circulation
|January 16, 2002
概括
昏前缩性动脉压 (SAP) 的降低可以预测未解释的昏迷患者的倾斜表测试结果呈阳性. 监测这些压力下降有助于确定测试持续时间.
科学领域:
- 心脏病学 心脏病学
- 腎臟病學 (nephrology) 是一種醫學專業.
- 神经学 神经学
背景情况:
- 动脉压的无症状降低可能会先于倾斜诱导的昏迷.
- 研究了这些压力降低对倾斜测试结果的预测值.
研究的目的:
- 评估在被动倾斜表测试的最初15分钟期间无症状静脉压 (SAP) 降低的预测值,以确定神经心脏病性.
主要方法:
- 238名健康的未知原因昏迷的受试者接受了被动倾斜表测试.
- 使用Finapres记录了节奏到节奏的SAP.
- 计算了在倾斜的前15分钟内SAP下降到基线值的次数.
主要成果:
- 被诊断为神经心脏性昏迷或在15分钟后昏倒的受试者显示,SAP减少 (328±400) 比负测试 (119±284) 显著多.
- 在最初的15分钟内,超过14次SAP减速预测了93%的灵敏度和98%的负预测值的积极倾斜测试.
- 使用在线视觉分析的前性研究 (80名受试者) 实现了80%的灵敏度和85%的特异性.
结论:
- 在倾斜的最初15分钟内,SAP的减少是先前昏迷的缩压力不稳定性的标志.
- 这种简单的评估是对倾斜测试结果的良好预测.
- 可用于指导倾斜表测试的持续时间.
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Purposes