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);