Altered Respiratory Compliance Under Invasive Mechanical Ventilation in SARS-CoV-2 & Development of Respiratory Sequels

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