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        west china medical publishers
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        find Author "MA Youbing " 1 results
        • Study for the Correlation Among Bispectral Index and Blood Propofol Concentration with Level of Sedation in the Elderly

          目的:探討老年手術患者椎管內麻醉后應用異丙酚鎮靜,腦電雙頻指數、異丙酚血藥濃度和鎮靜深度之間的相關性[1]。方法:48例ASAⅠ~Ⅱ級擇期手術患者,分為老年組(65~85歲)和年輕組(18~40歲),每組24例。為盡快達到穩態血藥濃度,采用靶控輸注方式給藥。異丙酚靶濃度從0.5 μg/mL起逐漸增加,直至患者對輕推無反應(意識消失),每個濃度維持5min。連續記錄EEG參數,在每一穩態血藥濃度末,記錄BIS、95%SEF, 橈動脈取血(高效液相色譜法測定異丙酚血藥濃度),并評定鎮靜深度(OAA/S評分法)。用Spearman’s等級相關進行相關分析,并計算預測概率 (Pk) 值。結果:兩組BIS (r=0.935~0.955) 與鎮靜水平的相關性優于血藥濃度(r =0.849~0.870)和95%SEF(r =0.503~0.571),BIS的Pk值高(0.942~0.972)。在同一鎮靜評分(OAA/S 4~1)時,老年組BIS值明顯高于年輕組(Plt;0.01),而血藥濃度低于年輕組(Pgt;0.05)。結論:BIS在監測異丙酚鎮靜水平及預測意識消失方面有重要價值,在同一鎮靜評分時,老年人BIS值高于年輕人。

          Release date:2016-09-08 10:02 Export PDF Favorites Scan
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