摘要
目的探讨术中知晓的危险因素及预防术中知晓的有效方法。方法2011年8月至2012年10月期间对北京大学第一医院麻醉科给予肌肉松弛(肌松)剂的全身麻醉患者进行术后随访,明确术中知晓的发生率,与2004年5月至2005年9月的结果进行历史对照。两组患者的一般情况、手术情况、麻醉技术、术中情况等相关因素分别与术中知晓发生的相关性进行单因素分析,筛选出P〈0.10的若干因素进入多元Logistic回归分析。结果2011年8月至2012年10月期间共入选全麻患者6305例(近期组),其中发生术中知晓的患者为16例,术中知晓的发生率为0.25%;2004年5月至2005年9月共入选全麻患者2025例(历史对照组),其中发生术中知晓28例,术中知晓的发生率为1.38%。与历史对照组比较,近期组术中知晓的发生率显著降低(P〈0.05)。近期组与历史对照组患者共8330例,共发生术中知晓4J4例,多元Logistic回归分析结果显示,5个因素与术中知晓的发生风险显著相关(P〈0.05),其中增加术中知晓发生风险的有3个:采用全凭静脉麻醉(OR=6.671),术中只吸N20持续〉30rain(OR=8.791),术中发生明显循环波动(OR=9.995);其中有助于使术中知晓的发生风险降低,对患者起到保护作用的因素有2个:术前应用咪达唑仑(OR=0.060),术中进行麻醉气体监测(OR=0.441)。结论对麻醉科医生加强有关术中知晓知识的宣教及采取措施改善麻醉管理与监护可有效地降低术中知晓的发生率。本研究中5个因素是术中知晓的独立预测因素。
Objective To evaluate the effect of our prophylaxis job against awareness during general anesthesia and identify the effective methods. To analyze the risk factors of awareness. Methods Patients who received general anesthesia requiring muscle relaxants were interviewed postoperatively. The cases with explicit recall (ER) were identified as the cases of awareness. The results of the patients were compared with a historical group of 2025 cases in a previous study. Results 16 patients in the later group (6305 eases), 0. 25% , had ER as compared with 1.38% in the earlier group (P 〈0. 05). 8330 patients were included in a Logistic analysis and factors associated with awareness were: TIVA technique (OR = 6. 671 ), O2/N2O-based anesthesia 〉 30 rain ( OR = 8. 791 ), obvious intraoperative blood pressure fluctuation ( OR = 9. 995 ), midazolam as a premedication ( OR = 0. 060 ) , anesthetic gas monitoring ( OR =0. 441 ). Conclusion Attentiveness on the knowledge of awareness and improvement in anesthetic management and monitoring were associated with a significantly reduced incidence of awareness as compared with a historical control population.
出处
《中华医学杂志》
CAS
CSCD
北大核心
2013年第41期3272-3275,共4页
National Medical Journal of China
关键词
全身麻醉
麻醉深度
术中知晓
Anesthesia, general
Anesthesia, depth
Awareness