Reducing Central Line Infections Through Structured Quality Improvement
Central line-associated bloodstream infections (CLABSIs) remain one of the most preventable causes of harm in modern healthcare, affecting patients across intensive care, oncology, and renal services in hospitals from Brisbane to regional Queensland. A quality improvement initiative targeting these infections can deliver measurable reductions in morbidity, mortality, and length of stay while supporting the broader safety culture championed by Brisbane Diamantina Health Partners and its network of research and clinical collaborators.
When a central venous catheter is inserted or maintained without rigorous adherence to evidence-based protocols, the risk of bacteraemia rises sharply. Australian hospitals participating in the national surveillance programme coordinated through the Australian Commission on Safety and Quality in Health Care have demonstrated that consistent application of insertion and maintenance bundles can cut infection rates by half or more within twelve months.
Understanding the Burden of CLABSIs
Each year, thousands of Australians acquire a healthcare-associated bloodstream infection during inpatient treatment. The Australian Institute of Health and Welfare reports that these events contribute to prolonged hospitalisation, additional antimicrobial exposure, and increased risk of complications such as septic shock and metastatic infection. For patients in neonatal units, cancer centres, and dialysis programmes at facilities like the Royal Brisbane and Women's Hospital, the consequences can be devastating.
Beyond the human cost, the economic impact is significant. Prolonged intravenous antibiotic therapy, repeat imaging, and extended admissions place pressure on state health system funding. A single CLABSI episode in an Australian tertiary centre can extend a patient's stay by more than a week, compounding the demand on an already stretched workforce. Recognising the scale of the problem is the first step toward designing a credible improvement programme.
Building a Local Quality Improvement Framework
Successful CLABSI reduction begins with governance. In Queensland, initiatives are typically nested within a health service's safety and quality committee, with executive sponsorship from the Director of Nursing or a designated clinical champion. Aligning the project with statewide priorities from Queensland Health and the Clinical Excellence Queensland programme helps secure the data analyst support, audit resources, and frontline education time required for sustained change.
A clearly defined charter, measurable aims, and a multidisciplinary steering group provide the scaffolding. Membership usually includes intensivists, infection prevention nurses, vascular access clinicians, pharmacists, and consumer representatives. Frontline ownership is strengthened when staff at sites such as the Princess Alexandra Hospital or regional facilities in Townsville and Toowoomba can see their own unit-level data feeding into the broader collaborative.
Deploying Evidence-Based Insertion and Maintenance Bundles
The clinical literature consistently supports the use of standardised care bundles. The insertion bundle typically includes hand hygiene, maximal barrier precautions, chlorhexidine skin antisepsis, optimal catheter site selection, and daily review of line necessity. The maintenance bundle focuses on aseptic access technique, dressing integrity, prompt line removal when no longer required, and routine catheter site assessment.
In the Australian context, bundle elements are often adapted to align with Therapeutic Goods Administration-registered antiseptic products and the consumables available through national procurement contracts. Education is reinforced through simulation training at centres across the Translational Research Institute precinct, where interprofessional teams practise sterile insertion on task trainers before approaching real patients. Such hands-on rehearsal improves compliance and confidence simultaneously.
Engaging the Multidisciplinary Workforce
Quality improvement fails when it is perceived as the infection control team's project alone. Ward-based nurses, junior medical officers, allied health staff, and even patient transport personnel all influence line integrity. Structured education sessions, visible wall-mounted checklists, and peer audit feedback loops create shared accountability. The translational approaches adopted by Brisbane Diamantina Health Partners, including its childhood obesity prevention guide, demonstrate how research evidence can be converted into practical, ward-ready tools, and the same methodology applies to catheter care.
Clinical leaders should also consider cultural factors unique to Australian healthcare settings. Shift handover practices, the rotation of registrars between metropolitan and rural placements, and the prevalence of agency nursing staff during weekends all influence compliance. Designing education that fits within existing in-service time, rather than adding to it, increases uptake and reduces change fatigue.
Measuring, Auditing, and Iterating
Reliable measurement is the engine of improvement. Standardised CLABSI definitions, expressed as infections per 1000 catheter days, allow meaningful benchmarking between intensive care units at the Gold Coast University Hospital and those at smaller regional sites. Monthly feedback of unit-level infection rates, paired with process measures such as bundle compliance, enables teams to identify drift early and respond before infections occur.
Audit cycles of three to six months help distinguish signal from noise. Where an upward trend appears, a root cause analysis using the "five whys" or a fishbone diagram can uncover latent contributors such as staffing gaps, equipment shortages, or documentation failures. Sharing these findings transparently, without blame, builds psychological safety and encourages ongoing reporting.
Scaling Improvement Across the Network
Once a CLABSI reduction strategy proves effective in one service, the natural next step is spread. Queensland's public hospital system offers an ideal test bed, with shared electronic medical records, common procurement frameworks, and established clinical networks. Clinical innovation hubs associated with Brisbane Diamantina Health Partners can support the translation of pilot outcomes into standardised protocols adopted across multiple hospital and health services.
Research-evaluation partnerships with universities such as the University of Queensland, QUT, and Griffith University provide opportunities to publish findings, secure competitive funding, and train the next generation of clinician-researchers. Embedding improvement science within undergraduate nursing and medical curricula further reinforces the message that infection prevention is everyone's responsibility.
Practical Recommendations for Clinical Teams
- Appoint a named clinical lead for catheter-related infection prevention with protected time for the role.
- Adopt insertion and maintenance bundles consistent with the National Safety and Quality Health Service standards.
- Provide quarterly simulation-based education that addresses both technical insertion and decision-making about line necessity.
- Display unit-level CLABSI rates and bundle compliance data in real time on ward quality boards.
- Conduct monthly audits of line necessity documentation and remove any catheter that no longer meets clinical criteria.
- Partner with academic and research networks, including Brisbane Diamantina Health Partners, to evaluate outcomes and share learnings.
- Engage patients and families through plain-language information about line care and the warning signs of infection to watch for at home.
Implementing these recommendations requires patience, persistence, and a willingness to learn from both successes and setbacks. Teams across Brisbane, the Sunshine Coast, and beyond are already showing that disciplined quality improvement can move CLABSI rates to historic lows, protecting patients and reinforcing the reputation of Queensland's health system as a leader in safe, evidence-based care.
Take the next step by exploring the research themes and collaborative programmes available through Brisbane Diamantina Health Partners, and consider how your own service could contribute to the statewide effort to eliminate preventable bloodstream infections.
