Vacuum dressing may keep heart surgery scars closed

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * All patients undergoing scheduled or semi-urgent cardiac surgery, with or without extracorporeal circulation. * Patients managed by complete vertical median sternotomy. * Patients benefiting from a Social Security scheme or benefiting from it through a third party. * Informed consent signed by the patient after clear and complete information about the clinical investigation. All patients included in this clinical investigation must not have any of the non-inclusion criteria listed below: Exclusion Criteria: * Known allergy to one of the dressings: PREVENA®, PICO® or standard dressing * Patient with a contraindication to PICO® dressing * Patient with a contraindication to PREVENA® dressing: * Sensitivity to silver * Patient with a history of cardiac surgery prior to inclusion * Patient with skin infection (folliculitis) of the sternotomy site before the operation. * Urgency and extreme urgency (patient operated within 24 hours of admission). * Patient already participating in a clinical investigation whose main objective or secondary objectives are likely to have an impact on the main objective of this clinical investigation * Patient with antibiotherapy ongoing (endocarditis patients) * Minimal sternotomy (8-10 cm) * Pregnant or breastfeeding women, women of childbearing age who do not have effective contraception (hormonal/mechanical: oral, injectable, transcutaneous, implantable, intrauterine device, or surgical: tubal ligation, hysterectomy, total oophorectomy), or having a positive pregnancy test at inclusion * The inability of the patient to complete informed consent before any study procedure * Persons benefiting from enhanced protection, namely minors, persons deprived of their liberty by a judicial or administrative decision, adults under legal protection