ABSTRACT
Objectives@#To determine the efficacy of low-dose heparin in preventing central catheter occlusion and its safety among neonates.@*Materials and Methods@#A randomized controlled trial was conducted among 42 neonates requiring peripherally inserted central catheter (PICC) lines. The neonates were divided into two groups: low dose heparin (0.5 units/kg/hr =0.2 units/ml) and control group (0.5 units/ml). The efficacy outcomes were duration of catheter patency, completion of catheter use, and the presence of catheter occlusion or thrombosis. The safety outcomes include heparin complications.@*Results@#The study participants had a mean age of 17 days old at 35 weeks gestational age and mean weight of 1.97 kg. The participants given low dose heparin were 36% more likely to complete the use of central line and 12% less likely to develop catheter occlusion. Analyses showed non-statistically significant risk ratio of active bleeding, thrombocytopenia, and deranged prothrombin time in the low dose heparin group.@*Conclusion@#The use of low dose heparin (0.5 units/kg/hr = 0.2 units/ml) appears as effective as the control dose in completion of catheter use and prevention of catheter occlusion. There was also no significant difference in the adverse effects. Low dose heparin can be used as continuous infusion for preventing central line occlusion; however, it has no advantage in lowering the risk of complications.
Subject(s)
HemorrhageABSTRACT
OBJECTIVES@#To determine efficacy of continuous heparin infusion vs placebo on maintenance of peripherally inserted central catheter line among neonates admitted at the NICU.@*METHODS@#This is a meta-analysis of randomized controlled trials reported in accordance with PRISMA checklist. Cochrane Risk-of-bias tool was used in assessment of reporting biases. Pooled risk ratios were estimated using random- or fixed-effects model.@*RESULTS@#Of 4519 studies identified, 4 studies were included, and all have low risk of bias. Meta-analysis showed that continuous heparin infusion on PICCs had significantly higher duration of catheter patency compared to the placebo group (MD=2.22, 95%CI=1.03-3.14, pvalue<0.00001). Heparin group also had decreased risk of occlusion (RR=0.47, 95%CI=0.94, pvalues=0.03) compared to control. The risk for other adverse events such as thrombosis, infection, IVH progression, and mortality was comparable between the two groups. @*CONCLUSION@#Continuous heparin infusion in PICC fluids can prolong duration of catheter patency by 2.2 days and reduce risk of catheter-related occlusion by 50%, without having significant effect on incidence of other adverse events.@*RECOMMENDATIONS@#Continuous heparin infusion on PICC fluids should be part of maintenance and care policy at the NICU, but precautions should be followed to prevent adverse outcomes. Systematic review of intermittent heparin flushing can be a window of opportunity.