脑电双频指数与严重颅脑外伤程度的相关性及预后分析

目的观察脑电双频指数（BIS）与严重颅脑外伤严重程度的相关性及与预后的关系。方法观察2008年3月～2009年12月84例严重颅脑外伤患者，监测BIS并分析其与病情严重程度及预后的相关性。结果入院72h后GCS评分〉5分组同GCS评分≤5分组相比，两组BIS值差异有统计学意义（P〈0．01）。入院72h后BIS≤40与BIS〉40两组之间，其预后差异有统计学意义（P〈0．01）。结论入院时病情越重，BIS值越低，其预后越差。因此，BIS可以作为严重颅脑外伤患者病情严重程度及预后判断的一个指标。

The Relativity and Prognosis of Bispectral Index with Severe Craniocerebral Injury

Objective To observe the relativity and prognosis of bispectral index （ BIS ） with severe craniocerebral injury. Methods All 84 patients with craniocerebral injury hospitalized in from Mar 2008 to Dec 2009, monitoring their BIS, then analyse the relativity of the order of disease severity and prognosis. Results Comparing the GCS after patients hospitalized 72h, between GCS score 〉 5 with GCS ≤ 5, there were significant differences statistically in comparison between any two groups （P ~ O.O1 ）. The BIS after patients hospitalized 72h, between BIS score 〉 40 with BIS score ≤40, there were significant differences statistically in comparison between any two groups （ P 〈 0.01 ）. Conclusion While the patient with more serious eraniocerebral injury and lower BIS, he will got worse prognosis. So BIS could be a index for us to judge patient＇s craniocerebral injury severity and its prognosis.