Three versus seven day circuit changes of humidified oxygen circuitry : Pilot study to test the feasibility of conducting a randomised controlled trial
Webster, Joan, Hall, Laurie A., Goodwin, Di, Feodoroff, Silvana, Bligh, Susan, & Coyer, Fiona M. (2008) Three versus seven day circuit changes of humidified oxygen circuitry : Pilot study to test the feasibility of conducting a randomised controlled trial. Australian Journal of Advanced Nursing, 25(4).
Aim: To compare the rate of humidifier-acquired pneumonia between patients in whom circuitry is changed every three days (current practice) with patients in whom circuitry is changed every 7 days.
Background: Published guidelines for the prevention of nosocomial pneumonia state that ventilator circuitry should be changed no more frequently than every 48 hours, there are no recommendations for the optimal length of time humidified oxygen circuits should be used.
Design: Prospective randomised controlled trial.
Methods: Patients receiving humidified oxygen in surgical, medical and infectious diseases units in a 942 bed general teaching hospital in Queensland, Australia were eligible. Those consenting were randomly allocated to either 3-day (control) or 7-day (intervention) circuit changes. The primary outcome measure was rate of nosocomial pneumonia.
Results: Of the 51 eligible patients, 32 were included in the study (17 patients were randomized to the control group and 15 patients to the intervention group; recruitment rate 63%). During the study, four cases of nosocomial pneumonia occurred; two in the intervention group (13.3%) and two in the control group (11.8%)(χ21 = 0.018, p = 0.894). No patients died during the study period .
Conclusion: Conducting a large-scale randomised controlled trial in this area would be feasible. Relevance to clinical practice: This study is a first attempt to provide evidence on which to base practice guidelines for the management of humidified oxygen in a hospital setting.
Impact and interest:
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|Item Type:||Journal Article|
|Additional Information:||The published version of this article is freely available online via the Official URL.|
|Keywords:||Oxygen inhalation therapy, Humidification, Pneumonia, Randomised controlled trials, Respiratory nursing|
|Subjects:||Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > NURSING (111000) > Clinical Nursing - Secondary (Acute Care) (111003)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > NURSING (111000)
|Divisions:||Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
|Copyright Owner:||Copyright 2005 (The authors)|
|Deposited On:||06 Apr 2006|
|Last Modified:||09 Jun 2010 12:27|
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