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目的 评价实时动态血糖监测系统(RT-CGMS)与传统间断血糖监测方法(IGM)在危重症胰岛素强化治疗(ⅡT)中的作用是否存在差异,以探讨RT-CGMS在危重症强化降低血糖治疗中的意义.方法 系统性检索中文、西文文献数据库中的相关临床随机对照试验(RCT),应用Review Manager 5.2软件进行荟萃分析.评价指标包括:低血糖事件发生率、平均血糖水平、血糖达标时间比例、短期病死率等.结果 共有6篇文献,总计531例患者纳入本次研究.平均血糖水平合并SMD=-0.21(95％ SMD:-0.43 ～0.01,P=0.07);血糖达标比例时间合并SMD=0.20(95％ SMD:-0.09～0.49,P=0.18);低血糖事件发生率合并OR=0.20 (95％ CI:0.09～0.43,P＜0.01);短期病死率合并OR=0.35 (95％ CI:0.14～0.89,P=0.03).结论 危重症强化胰岛素治疗(ⅡT)过程中应用RT-CGMS可明显减少低血糖事件的发生率,但RT-CGMS在保持血糖于理想水平方面比较传统间断血糖监测(IGM)未见明显优势.

Objective To evaluate the value of real time continuous blood glucose monitoring system (RT-CGMS) versus intermittent blood glucose monitoring (IGM) in the critically ill patients under intensive insulin therapy (IIT).Methods A systematic searching randomized and controlled trials (RCT) in databases was performed for meta-analysis by Review Manager 5.2 software.Outcomes were hypoglycemia episode,alteration of mean blood glucose level,the percentage of time at a blood glucose level within optimal target range,and the early mortalities.Results Six studies,totally 531 patients,were included in this meta-analysis.The pooled SMD of mean blood glucose level was =-0.21 (95％ SMD:-0.43-0.01,P=0.07).The pooled SMD of percentage of time at a blood glucose level within optimal target range was 0.20 (95％ SMD:-0.09-0.49,P =0.18).The pooled OR of hypoglycemia episode frequency was 0.20 (95％ CI:0.09-0.43,P ＜ 0.01).The pooled OR of early mortalities was 0.35 (95％ CI:0.14-0.89,P =O.03).Conclusions In critically ill patients under the intensive insulin therapy,RT-CGMS had obvious beneficial effect on reducing hypoglycemic events.RT-CGMS had no obvious beneficial effect on keeping blood glucose level within optimal target range.