Weekly Versus no Routine Ventilator Circuit Changes in NICU

Weekly Versus no Routine Ventilator Circuit Changes in Neonatal Intensive Care Unit: Prospective, Randomized Study

The purpose of this study is to determine incidence of ventilator-associated pneumonia compared between weekly and no routine ventilator circuit changes in neonatal intensive care unit

Parents were received informed consent. Enrolled neonates was randomly assigned to 2 groups as 7-day ventilator circuit change and no change group by computerization with allocated of concealment. The investigation team opened the next sequentially numbered study pack, which was stored in the neonatal unit. The assignment sequence was generated with balance within random block sizes of 4. Stratification according to birthweight was done before randomization to control for differences in patient populations. Patient characteristics were recorded as gestational age, sex, birthweight, underlying disease, date of intubation, date of extubation, duration of mechanical ventilator, reintubation, length of hospital stay, parenteral nutrition, medication (H2-blocker, PPI, narcotic drugs), transfusion and oral immune therapy. Laboratory data and radiographic data were recorded. Both groups received similarly care as the nurse was assigned to take care of patient in ratio 1-2 patients: 1 nurse, new disposable circuits were use in both groups and the VAP prevention protocol and the endotracheal suctioning protocol which followed by an American Academy of Respiratory Care (AARC) clinical practice guidelines were performed in both groups. When the VAP was suspected the radiographic data were reviewed by two pediatric radiologists on the day of diagnosis, 3 days prior to the diagnosis and/or 2 and 7 days after diagnosis to confirm diagnosis of VAP if there is different in the results, the consensus must be made.

incidence of ventilator-associated pneumonia (percentage of ventilator-associated pneumonia (events)/mechanically ventilated infant)

incidence of ventilator-associated pneumonia (ventilator-associated pneumonia (events)/1,000 ventilator days)

Inclusion Criteria: All neonates who admitted at neonatal intensive care unit (NICU) and required ventilator support with both intubated at time of neonatal resuscitation and within the NICU as indicated Exclusion Criteria: Patient was extubated or died within 2 calendar days of endotracheal intubation Pneumonia was diagnosed before intubation Outborn who was intubated before referred Parents declined to participate Incompatibility of disposable circuits and ventilator Chromosome abnormality or moribund

Cernada M, Aguar M, Brugada M, Gutierrez A, Lopez JL, Castell M, Vento M. Ventilator-associated pneumonia in newborn infants diagnosed with an invasive bronchoalveolar lavage technique: a prospective observational study. Pediatr Crit Care Med. 2013 Jan;14(1):55-61. doi: 10.1097/PCC.0b013e318253ca31.

Apisarnthanarak A, Holzmann-Pazgal G, Hamvas A, Olsen MA, Fraser VJ. Ventilator-associated pneumonia in extremely preterm neonates in a neonatal intensive care unit: characteristics, risk factors, and outcomes. Pediatrics. 2003 Dec;112(6 Pt 1):1283-9. doi: 10.1542/peds.112.6.1283.

Afjeh SA, Sabzehei MK, Karimi A, Shiva F, Shamshiri AR. Surveillance of ventilator-associated pneumonia in a neonatal intensive care unit: characteristics, risk factors, and outcome. Arch Iran Med. 2012 Sep;15(9):567-71.

Kawanishi F, Yoshinaga M, Morita M, Shibata Y, Yamada T, Ooi Y, Ukimura A. Risk factors for ventilator-associated pneumonia in neonatal intensive care unit patients. J Infect Chemother. 2014 Oct;20(10):627-30. doi: 10.1016/j.jiac.2014.06.006. Epub 2014 Jul 4.

Han J, Liu Y. Effect of ventilator circuit changes on ventilator-associated pneumonia: a systematic review and meta-analysis. Respir Care. 2010 Apr;55(4):467-74.

Makhoul IR, Kassis I, Berant M, Hashman N, Revach M, Sujov P. Frequency of change of ventilator circuit in premature infants: Impact on ventilator-associated pneumonia. Pediatr Crit Care Med. 2001 Apr;2(2):127-132. doi: 10.1097/00130478-200104000-00006.