There is a need for a simple and safe method of reducing the occurrence of CRBSI in immunocompromised children receiving chemotherapy for malignant diseases. Various catheter lock solutions in stead of using heparin have been investigated in experimental models. Taurolidine is a chemically modified amino acid with broad spectrum antimicrobial activity in vitro. It is claimed to prevent the formation of luminal biofilm in TCVCs in a CVC model and it has been demonstrated to eradicate infected CVC in a three reports with a total of 18 patients.