摘要:目的:评价II代引流型喉管(LTS II)和Proseal喉罩(PLMA)在择期手术中应用效果。方法:检索了Cochrane图书馆(2009年第3期)、Pubmed(1950～2009)、EMBase(1989～2009)、CNKI(1979～2009)、VIP(1989～2009)、CBM(1978～2009)中相关II代引流型喉管(LTS II)和Proseal喉罩在择期手术中应用的随机对照试验(RCT),同时筛检纳入文献的参考文献。由2名研究者对文献质量进行严格评价和资料提取,根据指标相应异质性进行描述性分析或Meta分析(RevMan 5.0)。结果:共纳入3个RCT,共244例研究对象,文献质量均为B级。3个RCT的结果显示与PLMA相比,LTS II具有相似的首次置入成功率(P=0.45)、术毕即刻上呼吸道损伤发生率(P=1.00)、术后24 h咽痛发生率(P=0.81)、术后24 h吞咽困难发生率(P=0.12)。2个RCT的结果显示两组引流管置入均较容易。1个RCT的结果显示两组的操作者主观评价相近(OR=1.86,95%CI 0.39～ 8.99)。气道封闭效果由于采用方法学差异性较大,指标也不尽相同,尚不能得出准确结果。结论:LTS II在择期手术中用于气道管理具有较好的前景。但是现时仍不宜用于需在择期术中进行控制通气的病人。关于气道封闭效果,尚需采用更合理规范的指标、更高质量的研究设计进一步研究。Abstract: Objective: To assess the efficacy of laryngeal tube suction II (LTS II) and LMAProseal (PLMA) for airway management in elective surgery. Methods:We searched Cochrane Library (2009),Pubmed (19502009)、EMBase (19892009),CNKI (19792009),VIP (19892009),CBM (19782009). The quality of the trials was assessed by two reviewers independently. RevMan 5.0 software provided by the Cochrane Collaboration was used for statistical analysis. Results:Three studies involving 244 participants were included. Same rates of fist successful attempt (P=0.45),upper airway trauma (P=1.00),sore throat (P=0.81) and dysphagia (P=0.12) were observed in LTS II and PLMA in all studies. Two studies indicated that the insertion of gastric tube was easy in both groups. The similarity of subjective maneuverability in two groups was reported in one study (OR=1.86, 95%CI 0.39 to 8.99). The correct result of effectiveness of airway seal could not be made because of various methods and measurements. Conclusion:LTS II have a good perspective in the airway management. Otherwise, it is not safe for patient required control ventilation because of lack of evidence on the effectiveness of airway seal. More RCTs of high quality need to be undertaken in the future.
0bjective To compare the effect of closed airway management system and open suction system on distribution and drug susceptibility of pathogenic bacteria in lower respiratory tract of mechanical ventilated patients.Methods Fifty-nine cases in ICU who received mechanical ventilation for more than 48 h from May 2006 to Dec 2006 were randomly divided into two groups.Group A(29 patients)received closed—tracheal suction and Group B(30 patients)received open-tracheal suction.Quantitative bacteriological culture and sensitivity of antibacterial drugs were conducted on lower respiratory tract secretion samples.Results In group A，a total of 91 strains were isolated，in which a single pathogen infection(41.4％)was the most frequent，followed by mixed infection of two pathogens(34.5％)and three or more pathogens(24.1％).In group B，a total of 141 strains were isolated，in which three or more pathogen infection(53.33％)was the most frequent，followed by two pathogen infection(30％)and a single pathogen infection(16.7％ ).Pathogen distribution between the two groups was not significantly different(Pgt;0.05).Drug susceptibility test did not show significant difference in main pathogens between the two groups(Pgt;0.05).Conclusions Closed airway management system can reduce the infection or colonization of mixed pathogens，but can not change the distribution and drug susceptibility of pathogens.
ObjectiveTo summarize the experiences of artificial airway management for inhalation injury patients undergoing tracheotomy. MethodsA retrospective analysis was made on the clinical data of 16 patients with inhalation injury who accepted artificial airway implantation after tracheotomy from January 2012 to October 2014. Certain measures were taken for the patients such as timely sputum suction in a correct way, effective airway moist, timely airway lavage, strict aseptic operation, reasonable position management, dynamic observation and health education. ResultsFifteen patients were cured, and one died. Among the cured patients, there were one case of catheter change due to blocked sputum, and one case of catheter outward portion sliding depth adjusting. ConclusionStrengthening artificial airway management after tracheotomy is the key to keep airway unobstructed, to prevent complications, and to guarantee the safety and a speedy recovery of patients.