difficult recruiting

The aim of the study is to verify if the periodic flush with normal saline 0.9% NaCl causes a longer or equal duration of patency of peripheral venous catheters, compared with heparin solution 50 U / ml flush, in children from 2 years to 14 years. Only 22 and 24 gauge catheters Will be included in the study.The study will assess in particular:

• the difference of permanence in situ of the device
• the difference in incidence of complications (in detail: obstruction, phlebitis, thrombocytopenia, systemic anticoagulation)
• the difference in costs between use of saline normal saline 0.9% NaCl solution and heparinized 50 U / ml.

Inclusion Criteria:

• Age between 2 years and 14 years old
• Medical prescription of intravenous antibiotic therapy for at least 2 doses on the day
• Presence of informed consent to participate to the study provided by the parents
• No known hypersensitivity to heparin
• No known hypersensitivity to the patch fixing materials (polyurethane and / or glue)
• Absence of diseases buoyancy coagulation (haemophilias and / or thrombophilias)
• No antecedents trombopenie dued to the use of any type of heparin or a pentosan polysulfate
• No existing treatment based on corticosteroids and / or anti-inflammatory

Exclusion Criteria:

• age outside the range 2 - 14 years
• children for which there is no prescription of intravenous antibiotic therapy for at least 2 times a day
• children for which the parents have not consented to the study
• children with known hypersensitivity to heparin
• children with known hypersensitivity to the patch fixing materials (polyurethane and / or adhesive)
• children with disease-causing buoyancy coagulation (Hemophilia and / or thrombophilia)
• children with antecedents of trombopenie occurring by the use of any type of heparin or of a pentosan polyphosphate
• children in treatment with corticosteroids and / or anti-inflammatory