Effect of Backrest Position on Intracranial and Cerebral Perfusion Pressures
Effect of Backrest Position on Intracranial and Cerebral Perfusion Pressures
复制标题
靠背位置对颅内和脑灌注压的影响
DOI：
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发表时间：
1990
影响因子：
2.3
通讯作者：
R. Winn
中科院分区：
文献类型：
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作者：
K. March;P. Mitchell;S. Grady;R. Winn
患者;预防颅内压（ICP）升高引起的继发性损伤和促进充足的脑血流量是护理神经系统患者的卫生保健专业人员的主要关注点。过去二十年的研究表明，抬高床头会降低颅内压。然而，当灌注压与ICP一起测量时，结果是相互矛盾的。一些研究者发现脑灌注压（CPP）随着头部升高而降低；其他人则没有发现变化。本研究考察了四种靠背姿势（平躺、头部抬高30°、抬高膝垫和反向Trendetenberg）对四名受试者ICP、CPP和经颅多普勒血流速度的影响。每个人都被放置在平面位置15分钟，然后在随机分配的三个高架靠背位置中的一个上15分钟。研究结果表明，在分析ICP、CPP和血流速度对该位置的反应后，应单独指定靠背位置。
&NA; Prevention of secondary injury resulting from increased intracranial pressure (ICP) and the promotion of adequate cerebral blood flow are major concerns of health care professionals caring for the neurologic patient. For the past two decades studies have indicated raising the head of the bed lowers ICP. However, when perfusion pressure has been measured along with ICP, results have been conflicting. Some investigators found cerebral perfusion pressure (CPP) decreased with head elevation; others found no change. This study examined the effect of four backrest positions (flat, head elevated 30° head elevated 30° with knee gatch elevated and reverse Trendetenberg) on ICP, CPP and transcranial doppler flow velocities in four subjects. Each was placed in the flat position for 15 minutes followed by 15 minutes in one of the three randomly assigned elevated backrest positions. Findings suggest backrest position should be individually assigned after analysis of the response of the ICP, CPP and blood flow velocities to that position.