Low Risk of Central Line-associated Bloodstream Infections in Pediatric Hematology/Oncology Patients

Background: Central venous lines (CVLs) are essential for standard care of pediatric hematology/oncology patients providing safe administration of cytotoxic drugs and pain-free blood sampling. Central line-associated bloodstream infections (CLABSIs) cause significant morbidity. This study describes the epidemiology, microbiology, and risk factors for CLABSI in all children with malignancies in Iceland. Methods: All children that were diagnosed with malignancy in Iceland and received a CVL during 2008-2017 were included in the study. Characteristics of CVLs and patients were registered, information on risk factors, and microbiology was collected. International standards were used for CLABSI definition. Results: One hundred forty-three CVLs were placed in 94 children. Acute lymphoblastic leukemia was the most common underlying disease (31/94). Median age was 7 years. Implantable ports were the most commonly placed CVLs (82/143, 57%), tunneled lines were 39 (27%). Overall CLABSI rate was 0.24 infections/1000 line-days (14 episodes in 58,830 line-days), with little fluctuations. No CLABSI episodes occurred for 4 consecutive years (2012-2015). Staphylococci (of which 7 Staphylococcus aureus) were the cause of 10/14 episodes. Nine CLABSI episodes led to line removal, but no deaths were linked to CLABSIs. Conclusion: We report very low CLABSI rates over a 9-year period at our hospital, with 4 consecutive CLABSI-free years. Even with the addition of episodes of possible CLABSI, rates were still very low and lower than most published reports.