Document Detail


Semirecumbent positioning in ventilator-dependent patients: a multicenter, observational study.
MedLine Citation:
PMID:  21041187     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
BACKGROUND: Positioning of patients is a modifiable risk factor for ventilator-associated pneumonia. Current guidelines for prevention of ventilator-associated pneumonia recommend semirecumbency at 30º, with 45º preferable unless contraindicated.
OBJECTIVE: To assess the use of semirecumbency for ventilator patients in Australian and New Zealand intensive care units.
METHODS: In a multicenter, observational study, backrest elevation, mean arterial pressure, use of inotropic agents, enteral feeding, and weaning status were recorded 3 times per day by using a predetermined randomization schedule for 7 consecutive days (maximum 21 observation episodes). Severity of illness was recorded daily by using the Sepsis-Related Organ Failure Assessment (SOFA) score.
RESULTS: Measurements (n = 2112) were recorded for 371 ventilator patients in 32 intensive care units. Backrest elevation at ≥45º was noted for 112 of 2112 (5.3%; 95% confidence interval [CI], 4.3-6.3) measurements; elevation ≥30º but <45º for 472 of 2112 (22.3%; 95% CI, 20.6-24.1). Contraindications to semirecumbency were noted during 447 measurements. Increased back-rest elevation occurred during enteral feeding (2.2º, P < .001) and weaning (3.1º, P < .001). Decreased backrest elevation was associated with inotropic support (2.8º, P < .001), decreased mean arterial pressure (0.7º/10 mm Hg, P < .001), and organ failure (0.5º/1-point increment in SOFA(max) score, P < .001). For measurements recorded with no contraindication to semirecumbency, weaning status (P = .003) and SOFA(max) score (P = .008) remained associated with the degree of backrest elevation.
CONCLUSIONS: The findings of this multicenter, observational study suggest that backrest elevation was less than recommended and was influenced by clinical practices and patient condition.
Authors:
Louise Rose; Ian Baldwin; Tom Crawford; Rachael Parke
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  American journal of critical care : an official publication, American Association of Critical-Care Nurses     Volume:  19     ISSN:  1937-710X     ISO Abbreviation:  Am. J. Crit. Care     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-11-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9211547     Medline TA:  Am J Crit Care     Country:  United States    
Other Details:
Languages:  eng     Pagination:  e100-8     Citation Subset:  IM; N    
Affiliation:
Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Ontario, Canada. louise.rose@utoronto.ca
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