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Soril LJJ, Noseworthy TW, Dowsett LE, Memedovich K, Holitzki HM, Lorenzetti DL, Stelfox HT, Zygun DA, Clement FM. Behaviour modification interventions to optimise red blood cell transfusion practices: a systematic review and meta-analysis. BMJ Open 2018; 8:e019912. [PMID: 29776919 PMCID: PMC5961610 DOI: 10.1136/bmjopen-2017-019912] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
OBJECTIVE To assess the impact of behaviour modification interventions to promote restrictive red blood cell (RBC) transfusion practices. DESIGN Systematic review and meta-analysis. SETTING, PARTICIPANTS, INTERVENTIONS Seven electronic databases were searched to January 2018. Published randomised controlled trials (RCTs) or non-randomised studies examining an intervention to modify healthcare providers' RBC transfusion practice in any healthcare setting were included. PRIMARY AND SECONDARY OUTCOMES The primary outcome was the proportion of patients transfused. Secondary outcomes included the proportion of inappropriate transfusions, RBC units transfused per patient, in-hospital mortality, length of stay (LOS), pretransfusion haemoglobin and healthcare costs. Meta-analysis was conducted using a random-effects model and meta-regression was performed in cases of heterogeneity. Publication bias was assessed by Begg's funnel plot. RESULTS Eighty-four low to moderate quality studies were included: 3 were RCTs and 81 were non-randomised studies. Thirty-one studies evaluated a single intervention, 44 examined a multimodal intervention. The comparator in all studies was standard of care or historical control. In 33 non-randomised studies, use of an intervention was associated with reduced odds of transfusion (OR 0.63 (95% CI 0.56 to 0.71)), odds of inappropriate transfusion (OR 0.46 (95% CI 0.36 to 0.59)), RBC units/patient weighted mean difference (WMD: -0.50 units (95% CI -0.85 to -0.16)), LOS (WMD: -1.14 days (95% CI -2.12 to -0.16)) and pretransfusion haemoglobin (-0.28 g/dL (95% CI -0.48 to -0.08)). There was no difference in odds of mortality (OR 0.90 (95% CI 0.80 to 1.02)). Protocol/algorithm and multimodal interventions were associated with the greatest decreases in the primary outcome. There was high heterogeneity among estimates and evidence for publication bias. CONCLUSIONS The literature examining the impact of interventions on RBC transfusions is extensive, although most studies are non-randomised. Despite this, pooled analysis of 33 studies revealed improvement in the primary outcome. Future work needs to shift from asking, 'does it work?' to 'what works best and at what cost?' PROSPERO REGISTRATION NUMBER CRD42015024757.
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Affiliation(s)
- Lesley J J Soril
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, The University of Calgary, Calgary, Alberta, Canada
| | - Thomas W Noseworthy
- O'Brien Institute for Public Health, The University of Calgary, Calgary, Alberta, Canada
| | - Laura E Dowsett
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, The University of Calgary, Calgary, Alberta, Canada
| | - Katherine Memedovich
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, The University of Calgary, Calgary, Alberta, Canada
| | - Hannah M Holitzki
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, The University of Calgary, Calgary, Alberta, Canada
| | - Diane L Lorenzetti
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, The University of Calgary, Calgary, Alberta, Canada
| | - Henry Thomas Stelfox
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, The University of Calgary, Calgary, Alberta, Canada
- Department of Critical Care Medicine, Cumming School of Medicine, University of Calgary, Foothills Medical Centre, Calgary, Alberta, Canada
- Critical Care Strategic Clinical Network, Alberta Health Services, Edmonton, Alberta, Canada
| | - David A Zygun
- Critical Care Strategic Clinical Network, Alberta Health Services, Edmonton, Alberta, Canada
- Department of Critical Care Medicine, Alberta Health Services and Faculty of Medicine and Dentistry, University of Alberta, Calgary, Alberta, Canada
| | - Fiona M Clement
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, The University of Calgary, Calgary, Alberta, Canada
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