摘要
目的系统分析45。半卧位对机械通气患者呼吸机相关性肺炎(VAP)发生率和其他结局的影响,并综合评价45°半卧位是否较25°-30°具有优势。方法检索1990年1月1日至2012年7月20日Cochrane临床试验数据库、美国《医学索引》(MEDLINE)、生物医学与药物学文摘数据库(Embase)、中国期刊全文数据库(CNKI)、万方数据库中有关不同床头角度对机械通气患者结局影响的随机对照临床研究(RCT),应用RevMan5.0软件进行荟萃分析(Meta分析)。结果最终纳入5个RCT研究,共427例患者。45°半卧位患者的VAP发生率显著低于非45。卧位患者[15.96%(34/213)比26.64%(57/214),相对危险度(RR)=0.57,95%可信区间(95%CI)为(0.39,0.83),P=0.003];而不同体位对患者VAP病死率[27.04%(53/196)比28.22%(57/202),RR=0.93,95%CI(0.68,1.27),P=0.66]、住重症监护病房(ICU)时间[加权均数差(WMD)=-0.45,95%CI(-1.08,0.18),P=0.16]、抗菌药物应用率[71.11%(32/45)比60.87%(28/46),RR=1.14,95%(21(0.85,1.53),P=0.37]无显著影响。对5项研究中的2项(91例)进行了45°(45例)和25°-30°(46例)的亚组分析,结果显示,45°半卧位对MV患者的临床结局较25°~30°卧位并无显著优势。结论45°半卧位对降低机械通气患者VAP发生率确实有效,但其是否优于25°~30°卧位仍须大样本的RCT研究来证实。
Objective To systemically analyze the effect of 45° semirecumbent position on the incidence of ventilator-associated pneumonia (VAP) and other outcomes in mechanical ventilated patients, and to evaluate whether 45° semirecumbent position is superior to 25° -30° head of bed (HOB). Methods The randomized controlled trials (RCTs) comparing the effect of different HOB on the outcomes of mechanical ventilated patients were searched (from 1st January 1990 to 20th July 2012) from five databases including the Cochrane Central Register of Controlled Trials, MEDLINE, Embase, China Knowledge Resource Integrated Database (CNKI), and Wanfang Database. Meta analysis was conducted using RevMan 5.0 software. Results Data extracted from five RCTs with a total of 427 patients were analyzed. The risks of developing clinically diagnosed VAP were significantly lower among the patients in semirecumbent 45° position compared to the patients in lower position [ 15.96% (34/213) vs. 26.64% (57/214), relative risk (RR)= 0.57, 95% confidence interval (95% CI) 0.39 to 0.83, P=0.003], while no significant differences were detected between the two groups regarding the mortality rate [ 27.04% (53/196) vs. 28.22% (57/202), RR: 0.93, 95% CI 0.68 to 1.27, P:0.66°, the length of intensive care unit (ICU) stay weighted mean difference (WMD):-0.45, 95%CI -1.08 to 0.18, P----0.16° and the percentage of antibiotics treatment [71.11% (32/45) vs. 60.87% (28/46), RR= 1.14, 95%CI0.85 to 1.53, P:0.37°. Two of the five trials (91 patients) were included in the sub-analysis between 45° group (45 patients) and 25° -30° group (46 patients). The results showed that comparing with 25° -30°, 45° semirecumbent position had no signifieance in improving patients' clinical outcomes. Conclusion This study proved that the clinically preferred semirecumbent 45° position did have effect in reducing the incidence of VAP, nevertheless, whether it's superior to 25° -30° needs
出处
《中国危重病急救医学》
CAS
CSCD
北大核心
2012年第10期587-591,共5页
Chinese Critical Care Medicine
基金
首都医学发展科研基金资助项目(2009-1014)
关键词
体位
45°半卧位
25°~30°卧位
机械通气
呼吸机相关性肺炎
荟萃分析
Body position
45° semirecumbent position
25° -30° position
Mechanical ventilation
Ventilator associated pneumonia
Meta analysis