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

Inclusion criteria

For the Ambulatory Obese Control Group, the inclusion criteria are:

• 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.

For the COVID Group and the Resuscitation Control Group, the inclusion criteria are:

• 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.

Exclusion criteria

Non-inclusion criteria for the Ambulatory Obese Control Group:

• Person deprived of liberty;
• Person subject to legal protection measures;
• Patient's opposition to participate in research.

The non-inclusion criteria for the COVID Group and the Resuscitation Control Group:

• 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);