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Are frequent inner cannula changes necessary?: A pilot study
S M Burns1, M Spilman, D Wilmoth
1University of Virginia Health Sciences Center, Charlottesville 22903, USA.
Heart & Lung : the Journal of Critical Care
|March 11, 1998
Summary
Daily inner cannula changes for tracheostomy patients in intensive care units did not significantly reduce colonization or obstruction. This suggests current practices may be unnecessary, warranting a re-evaluation of tracheostomy care standards.
Area of Science:
- Critical Care Medicine
- Surgical Nursing
- Infectious Disease Control
Background:
- Tracheostomy care protocols in intensive care units often include daily inner cannula changes.
- The necessity and impact of routine inner cannula changes on obstruction and colonization are not well-established.
Purpose of the Study:
- To compare the incidence of inner cannula obstruction and bacterial colonization in adult intensive care unit patients undergoing tracheostomy.
- To evaluate the effectiveness of daily inner cannula changes versus less frequent changes.
Main Methods:
- A quasi-experimental prospective study was conducted with 60 adult patients within 24 hours of tracheostomy.
- Patients were randomly assigned to either daily inner cannula changes or a control group.
- Inner cannulas were assessed daily for obstruction and cultured on postoperative days 1 and 3.
Main Results:
- No statistically significant difference in bacterial colonization was observed between the daily change group and the control group (p = 0.13).
- No instances of inner cannula obstruction were reported in either group.
Conclusions:
- Routine daily inner cannula changes for tracheostomy patients in critical care settings may not be necessary.
- These findings challenge current practice standards and suggest a need for evidence-based re-evaluation of tracheostomy care protocols.