Three versus seven day circuit changes of humidified oxygen circuitry: a feasibility study

Webster, J., Hall, L., Goodwin, D., Bligh, S. and Coyer, F. (2008) Three versus seven day circuit changes of humidified oxygen circuitry: a feasibility study. Australian Journal of Advanced Nursing, 25 4: 23-30.


Author Webster, J.
Hall, L.
Goodwin, D.
Bligh, S.
Coyer, F.
Title Three versus seven day circuit changes of humidified oxygen circuitry: a feasibility study
Journal name Australian Journal of Advanced Nursing   Check publisher's open access policy
ISSN 1447-4328
Publication date 2008-01-01
Sub-type Article (original research)
Open Access Status Not yet assessed
Volume 25
Issue 4
Start page 23
End page 30
Total pages 7
Editor Jill Iliffe
Place of publication Melbourne, VIC, Australia
Publisher Australian Nursing Federation
Language eng
eng
Subject C1
920210 Nursing
1110 Nursing
Formatted abstract
Objective The study compared the rate of humidifier acquired pneumonia between patients in whom humidifier circuitry is changed every three days with patients in whom circuitry is changed every 7 days in order to assess the feasibility of conducting a large scale randomised controlled trial to test the safety of extending the period between humidified circuit changes from three to seven days.

Design The study was a randomised controlled trial. Setting The setting for the study was a 942 bed general teaching hospital in Queensland, Australia. Subjects The subjects of the study were patients receiving humidified oxygen in surgical, medical and infectious diseases units of the hospital. Interventions Consenting subjects were randomly allocated to either 3-day (control) or 7-day (intervention) circuit changes.

Main outcome measures The primary outcome measure was nosocomial pneumonia and the secondary outcome measures were death and length of humidification therapy.

Results Of the 51 eligible patients, 32 were included in the study (17 patients were randomised 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%) (X2 = 0.018, p = 0.894). No patients died during the study period.

Conclusion No high quality evidence exists to assist nurses to make a decision about how frequently to change humidifier circuitry. Potential cost savings involved in extending the time frame between humidifier circuitry changes indicate that a large scale randomised controlled trial is both feasible and important.
Keyword Oxygen inhalation therapy
Humidity
Pneumonia
Humidifier circuitry
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: ERA 2012 Admin Only
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Created: Sun, 19 Apr 2009, 00:53:53 EST by Allison Peacock on behalf of School of Nursing, Midwifery and Social Work