Study on Pressure Ulcers Prevention With Mepilex® Border Sacrum Dressing in Scheduled Cardiovascular Surgery

Inclusion Criteria: * Subject over 18 years of age, * Subject programmed to benefit from cardiac surgery with sternotomy, * Subject capable and willing to comply with the protocol and willing to give his written consent, * Subject affiliated to a social security system Exclusion Criteria: * Subject with a skin lesion in the sacral area upon admission, * Subject admitted for emergency cardiovascular surgery (unscheduled subject), * Subject admitted for heart transplant surgery, * Subject participating in another clinical study or in a period of exclusion from a study previous, * Subject with a linguistic or psychological disability to sign informed consent, * Subject refusing to give written consent, * Subject deprived of liberty by administrative or judicial decision, under guardianship or curatorship.