右美托咪定对老年食管癌术中单肺通气患者手术后早期认知功能障碍的影响
发布时间:2018-12-06 08:29
【摘要】:目的探讨持续泵注右美托咪定(Dex)对食管癌全身麻醉术中单肺通气(OLV)患者手术后早期认知功能障碍(POCD)的影响及其与S100β和脑氧摄取率变化的关系。方法选择择期食管癌根治需行全身麻醉术中OLV的胸科手术患者60例(ASAⅠ~Ⅱ级),随机分为两组,D组(n=30):麻醉诱导前静脉泵注负荷剂量Dex 1μg/kg,泵注时间15 min,随后以Dex 0.5μg/(kg·h)维持至手术结束前约30 min,顺序静脉注射咪达唑仑-芬太尼-丙泊酚-顺式阿曲库铵麻醉诱导,双腔气管插管后麻醉机行机控呼吸,调整吸入麻醉药七氟烷浓度维持适宜的麻醉深度(脑电双频指数40~60);C组(n=30):先泵注等体积的生理盐水,其麻醉诱导与维持方法同D组。术中持续监测患者心电图、HR、MAP、Sp O2、PETCO2、气道峰压值、脑电双频指数,分别于术前1 d和术后第3天行精神状态评价量表(MMSE)神经心理测验,并于诱导前(T0)、OLV开始即刻(T1)、OLV结束(T2)、术毕24 h(T3)抽取颈内静脉血测血清中S100β蛋白含量,采集桡动脉及颈静脉球部的血样行血气分析,记录并计算脑氧摄取率(CEO2)。结果两组患者T0时MMSE评分比较差异无统计学意义(P0.05),术中两组患者MAP、HR比较差异无统计学意义(P0.05);术后C组MMSE评分比D组显著降低(P0.05),D组POCD发生率(6.7%)低于C组(26.7%),差异有统计学意义(P0.05),两组T3时Ca O2、Da-jv O2、CEO2比T1均降低(P0.05),T2、T3时,S100β蛋白均升高(P0.05);T2时D组Ca O2高于C组,而Da-jv O2、CEO2低于C组(P0.05),T2、T3时,D组S100β蛋白含量低于C组(P0.05)。结论食管癌全身麻醉围术期持续泵注Dex可降低OLV患者术后POCD的发生率,其机制可能与降低术中脑氧代谢和缓减S100β蛋白升高有关。
[Abstract]:Objective to investigate the effect of continuous pump infusion of dexmetidine (Dex) on (POCD) in patients with early cognitive dysfunction (POCD) and the changes of S100 尾 and cerebral oxygen uptake rate in patients with single lung ventilation (OLV) during general anesthesia of esophageal cancer. Methods A total of 60 patients (ASA 鈪,
本文编号:2365750
[Abstract]:Objective to investigate the effect of continuous pump infusion of dexmetidine (Dex) on (POCD) in patients with early cognitive dysfunction (POCD) and the changes of S100 尾 and cerebral oxygen uptake rate in patients with single lung ventilation (OLV) during general anesthesia of esophageal cancer. Methods A total of 60 patients (ASA 鈪,
本文编号:2365750
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