Effects of subglottic secretion drainage at different intervals on ventilator-associated pneumonia
10.3760/cma.j.issn.1672-7088.2017.29.010
- VernacularTitle:不同间隔时间清除气管导管气囊上滞留物对呼吸机相关性肺炎的影响
- Author:
Fenlian LIU
1
;
Hong FEI
;
Fangbao HU
;
Ying WANG
;
Lili DAI
Author Information
1. 201499,上海市奉贤区中心医院ICU
- Keywords:
Mechanical;
mechanical;
Pneumonia;
ventilator-associated;
Subglottic secretion
- From:
Chinese Journal of Practical Nursing
2017;33(29):2280-2283
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effects of subglottic secretion drainage at different intervals on ventilator- associated pneumonia(VAP). Methods A total of 150 patients receiving tracheostomy during January 2015 to December 2016 were divided into A, B, C group according to the order of intubation time. The subglottic secretion drainage was attracted at intervals of 2, 4, and 6 h respectively.The differences in balloon secretion on occult blood test(after intubation,intubation time,3 d, 5 d,7 d), the content of airborne bacteria in the air sac, the number of VAP and the time of VAP occurrence between the 3 groups were analyzed. Results The 3 groups that group A had 78 positive cases,group B had 46 cases and group C had 38 cases had statistical significance differences compared with balloon retentate occult blood test(χ2=28.23,P=0.00);there were statistical significance differences between the 3 groups of bacteria (Z=11.91, P =0.00 ), there were statistically significant differences between group A and group C (Z=-3.01, P=0.00), between group B and group C (Z=-2.19, P=0.01). There were statistical significance differences between the 3 groups of the number of VAP cases(χ2=7.50, P =0.00) that there were 12 cases happening in group A, 13 cases in group B and 23 cases in group C. There were statistical significance differences between group A and group C(χ2=5.32,P=0.02),between group B and group C (χ2=4.34, P =0.04). The occurrence time of VAP which was (169.25 ± 20.80) h in group A,(168.35±18.04)h in group B and(129.47±18.13)h in group C,there was significantly different between the 3 groups(F=2 788.19,P=0.00),the differences between group A and group C(t=3.19,P=0.00),group B and group C(t=68.40,P=0.00)were statistically significant. Conclusions The subglottic secretion drainage at intervals of 4 hours will not only reduce the damage to the airway mucosa,but also reduce the incidence of airway bacteria and the incidence of VAP and delay the occurrence of late VAP.
