Inclusion Criteria:

- Hospitalized in intensive care medicine between 01/03/2030 and 01/09/2022 (with
invasive mechanical ventilation for at least 48 hours for a SARS-CoV-2 infection
documented by RT-PCR) who were followed in pulmonary outpatient medicine at least 3
months after their hospitalization in intensive care medicine and before 01/12/2022
and who had respiratory sequelae during this period.

- Hospitalized in intensive care medicine between 01/03/2020 and 01/12/2021 (with
invasive mechanical ventilation for at least 48 hours for SARS-CoV-2 infection
documented by RT-PCR) who were followed up in pulmonary outpatient medicine but did
not have respiratory sequelae between 01/06/2020 and 01/12/2022.

Exclusion Criteria:

- Documented underlying respiratory pathology.

- Pneumothorax within the first 10 days.

- Patient requiring extracorporeal circulatory support.

- Refusal to participate

- Persons referred to in articles L. 1121-5, L. 1121-7 and L1121-8 of the public
health code: Pregnant woman, parturient or breastfeeding mother / Minor (not
emancipated) / Adult subject to a legal protection measure (guardianship,
curatorship, safeguard of justice) / Adult unable to express his consent

- Persons deprived of liberty by a judicial or administrative decision, persons under
psychiatric care under articles L. 3212-1 and L. 3213-1.

- Respiratory system compliance data not available on the computer software