Inclusion Criteria:  Male over 40 and under 75 Patient scheduled for a robot assisted radical prostatectomy within the center Affiliation to a social security scheme or beneficiary of such a scheme Patient having signed the free and informed consent  Exclusion Criteria:  Minor, age ≤ 40 years or ≥ 75 years ASA 4 or more Severe or poorly balanced associated conditions Covid + declared in the previous 3 months Refusal to participate in the study Protected patient: adult under guardianship, curatorship or other legal protection, deprived of liberty by judicial or administrative decision