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Concentrated citrate locking in order to reduce the long-term complications of central venous catheters: a randomized controlled trial in patients with hematological malignancies

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Abstract

Purpose and methods

Central venous catheter (CVC)-related thrombosis and infections are frequently occurring complications in patients with hematological malignancies. At present, heparin is most often used as a locking solution. Trisodium citrate (TSC) had been shown to be a very effective antimicrobial catheter locking in hemodialysis patients. We performed a prospective randomized phase III multicenter trial to determine the efficacy of TSC as a locking solution compared to heparin in preventing CVC-related thrombosis and infections in patients with hematological malignancies.

Results

Thirty-four episodes of CVC-related bloodstream infections (CVC-BSI) occurred in the 108 patients who were randomized to locking with heparin compared with 35 episodes in the 99 patients who were randomized to locking with TSC (P = 0.654). We did find seven times more CVC-BSI with gram-negative rods in CVCs locked with heparin (P = 0.041). The cumulative incidence of symptomatic thrombosis was 10 % in the heparin group and 5 % in the TSC group (hazard ratio 0.525; 95 % confidence interval 0.182–1.512).

Conclusion

This study shows that locking with TSC in patients with hematological malignancies significantly reduced the incidence of CVC-BSI with gram-negative rods. However, the incidence of CVC-BSI with coagulase-negative staphylococcus or CVC-related thrombosis was not reduced by TSC locking.

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Conflict of interest

This work was supported in part by a grant of Dirinco B.V. The authors have full control of all primary data and agree to allow the journal to review the data if requested.

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Correspondence to R. S. Boersma.

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Boersma, R.S., Jie, K.S., Voogd, A.C. et al. Concentrated citrate locking in order to reduce the long-term complications of central venous catheters: a randomized controlled trial in patients with hematological malignancies. Support Care Cancer 23, 37–45 (2015). https://doi.org/10.1007/s00520-014-2320-2

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  • DOI: https://doi.org/10.1007/s00520-014-2320-2

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