Resting Energy Expenditure of the COronaVirus (COVID19) Patient in Reanimation Context

Inclusion Criteria

• •Age ≥ 18 years;
• •Patient followed in the nutrition service;
• •Patient who benefited from an indirect calorimetry whatever the indication between 01/01/20 and 31/12/2020;
• •BMI\> 30.
• •Age ≥ 18 years;
• •Patient having undergone a resuscitation stay
• •Patient on mechanical ventilation (intubated or tracheotomized) during their stay in intensive care;
• •Patient having benefited from an indirect calorimetry upon arrival in intensive care;
• •Only for the COVID Group:
• •Patient hospitalized in intensive care for COVID 19 infection diagnosed by a positive PCR via nasopharyngeal sampling or endotracheal aspiration.
• •Patient who has not yet carried out his post-resuscitation visit;
• •Only for the Resuscitation Control Group:
• •\- Patient hospitalized in intensive care for an indication other than an infectious cause.
• •Person deprived of liberty;
• •Person subject to legal protection measures;
• •Patient's opposition to participate in research.
• •For patients intubated during the resuscitation stay Fi02\> 70% which does not allow a correct interpretation of the calorimetry;
• •Pregnancy ;
• •Person deprived of liberty;
• •Person subject to legal protection measures;
• •Opposition of the patient or the person of trust to participate in the research.
• •Only for the COVID Group:
• •Contraindication to indirect calorimetry (claustrophobia for post-resuscitation patients where calorimetry is performed with a mask);
• •Contraindication to bioimpedancemetry (electronic implants, limb amputation, weight \<30kg or\> 300kg);