Surgical Complications

The rationale for this study is to evaluate whether a standardized, preoperative, short-term Low Calorie Diet (LCD) reduces intraoperative bleeding and postoperative morbidity in liver surgery. Participants with a BMI of 30 or higher, scheduled for liver surgery, if accepting participation, will be randomized to a 7 day LCD or no intervention. A previous small single center RCT have shown significantly reduced intraoperative blood loss and a tendency towards less postoperative complications. This multi-centre study aims to include enough patients with power to analyze also postoperative complications.

Totally implantable venous access devices (TIVADs) offer long-term central venous access for children requiring intravenous treatments. Their use is recommended in infants (31 days - 1 year old) for \>31 days of non-peripherally compatible therapy, and in children and adolescents (\>1 year old) for any intravenous therapy lasting more than 31 days. Indications include chemotherapy administration and chronic disease management, avoiding repeated peripheral venous punctures and causing less interference with the activities of the patients. There are several methods for TIVAD placement, but the optimal evidence-based method remains unclear . The two main approaches for TIVAD placement are closed cannulation of a vein, followed by insertion of the catheter in Seldinger technique, and the surgical insertion of the catheter into a vein through an open cut-down technique 5-7. Different location of insertion are possible: by closed cannulation, the catheter is usually placed in subclavian vein, internal jugular vein, and brachiocephalic vein; by open cut-down it can be placed in external jugular vein, axillary vein, or cephalic vein. Thanks to progress in medical and surgical care, children are nowadays surviving previously fatal illnesses, but with the need of long-term treatments. For this reason, it's essential to preserve their vessel health. With this objective, in the CHU of Angers, physicians prefer trying first the cephalic vein cutdown for TIVAD positioning in children, reserving the use of other venous accesses in case of failure of this procedure or the need for multiple devices implantations. To date, few reports have been published about cephalic vein cutdown in children. It is a common opinion that this technique can't be successfully performed in patients under a certain limit of weight or age. In this context, the investigators conducted a retrospective single-centre study to analyse the results of cephalic vein cutdown in children. The primary aim was to describe the feasibility of this technique in paediatric population and identify the risks factors associated with its failure. In addition, this study describes indications, outcomes, and complications of TIVAD implantation.