1Hospital infection control practice advisory committee. Guideline for prevention of nosocomial pneumonia. Centers for Disease Control and Prevention [J]. Respir Care, 1994, 39(12): 1191 - 1236.
2GOLDMAN D A, LECLAIR J, MACONE A. Bacterial colonization of neonates admitted to an intensive care environment [J] . J Pediatr,1978, 93(2): 288 - 293.
3APISARNTHANARAK A, HOLZMANN-PAZGAL G, HAMVAS A, et al. Ventilator-associated pneumonia in extremely preterm neonates in a neonatal intensive care unit: characteristics, risk factors, and outcomes[J]. Pediatrics, 2003, 112(6 Pt 1): 1283- 1289.
7FINK B, KRAUSE S A, BARRTT L, et al. Extending ventilator circuit change intervalbe beyond 2 days reduces the likelihood of ventilator-associated pneumonia [J]. Chest, 1998, 113 (2) : 405 - 411.
8CORDERO L,SANANES M,AYERS L W,et al. A comparison of two airway suctioning frequencies in mechanically ventilated, very-low-birthweight infants [J]. Respir Care,2001, 46(8): 783 - 788.
9BERGMANS D C, BINTEN M J, GAILLARD C A, et al. Prevention of ventilator-associated pneumonia by oral decontamination: a prospective, randomized, double-bllnd, placebo-controlled study [J].Am J Respir Crit Care Med, 2001, I64(3): 382 - 388.
10BAKER C J, MELISH M E, HALL R T, et al. Intravenous immune globulin for the prevention of nosocomial infaction in low-birth-weigh neonates [J]. N Engl J Med, 199,327(4): 213-219.
2Meduri GU, Joanson WG JR. International consensus conference:clinical investigation of ventilator-associated pneumonia. Chest,1992; 102 (5): 551.
3Georage DL, Fak PS, Wunderink RG, et al.Epidemiology of ventilator-acquired pneumonia based on protected bronchoscopic sampling. Am J Respir Crit Care Med, 1998; 158 (6): 1839.
4Tablan OC, Anderson L J, Arden NH, et al. Guideline for prevention of nosocomial pneumonia. The hospital infection control practices advisory committee, centers for disease control and prevention.Infect Control Hosp Epidemiol, 1994,15 (9):587.
5Cordero L, Ayers LW, Miller RR, et al. Surveillance of ventilatorassociated pneumonia in very-low-birth-infants. Am J infect Control, 2002; 30 (1): 32.
6Fink JB,Krause SA,Barrett L,et al.Extending ventilator circuit change interval beyond 2 days reduces the likelihood of ventilator-associated pneumonia[].Chest.1998
7Han JN,Liu YP,Ma S,et al.Effects of decreasing the frequency of ventilator circuit changes to every 7 days on the rate of ventilatorassociated pneumonia in a Beijing hospital[].Respiratory Care.2001
8Lien TC,Lin MY,Chu CC,et al.Ventilator-associated pneumonia with circuit changes every 2 days versus every week[].Zhonghua Yi Xu Za Zhi(Taipei).2001
9Hess D.Infection control in the intensive care unit:the role ofthe ven-tilator circuit[].Minerva Anestesiologica.2002
