Silicone gel sheet to improve cosmetic outcome of the scar after removal of an implantable central venous access device in childhood cancer survivors

INTERVENTION: The application of a silicone gel sheet to optimise wound healing after removal of the ICVAD, and to reduce the size of the scar. CONDITION: Hypertrophic scarring ; Signs and Symptoms ; Scarring PRIMARY OUTCOME: Outcome variables regarding scar aspect: ; 1. Width in millimetres; 2. Length in millimetres; 3. Height (normal, 1 ‐ 2 mm, 3 ‐ 4 mm, 5 ‐ 6 mm, more than 6 mm); 4. Vascularisaty (normal, pink, red, purple); 5. Pigmentation (normal, hypopigmentation, mixed pigmentation, hyperpigmentation); 6. Pliability (normal, supple, yielding, firm, adherent); 7. Pain (nine point scale); 8. Itching (nine point scale); ; Children whose age is of twelve to eighteen years get standardised questionnaires on body image (minimum score eight, maximum score 40), and quality of life (functional and symptom status: 11 items with a range from one to four, global health status: two items with a range from one to seven). SECONDARY OUTCOME: No secondary outcome measures INCLUSION CRITERIA: 1. Children who are in follow‐up for cancer treatment, and have an ICVAD, which is planned to be removed, are eligible for the study 2. The children should be between one and eighteen years old