Impact of COVID-19 Infection on the Incidence of Ventilator-acquired Infections

COVAPID is a multicenter cohort study with two retrospective control groups. No intervention will be performed in included patients, only patient characteristics and data on VA-LRTI will be collected. Patients with confirmed SARS-CoV-2 community-acquired pneumonia, admitted to the participating ICUs from the start of COVID epidemic will be eligible for this study. Those admitted before the beginning of this study will be included retrospectively, and those admitted after the beginning of the study will be included prospectively. 10-20 patients per center will be included in this group. SARSCoV2 infection will be confirmed by a nasopharyngeal PCR or respiratory secretions (tracheal aspirate or bronchoalveolar lavage) PCR. Two retrospective groups will be constituted in order to give some insight of potential impact of SARS-CoV2 infection on the incidence of VALRTI :1) Influenza group : patients with influenza (A or B) community-acquired pneumonia. All patients with influenza community acquired pneumonia and admitted in the same ICU will be eligible in this group. The number of patients included in this group per center will be similar as that of patients included in the SARS-CoV-2 pneumonia group (10-20 patients). These consecutive patients will by identified using the files of Virology Lab. The first included patient will be the last of the current influenza season (2019-2020), and others will be taken consecutively back to 2019 of 2018 if necessary. PCR (nasopharyngeal or respiratory secretions) confirmation of influenza (A ou B) is required for patients in this group. 2) No viral infection group: patients with no viral community acquired pneumonia. All patients receiving invasive mechanical ventilation for more than 48h before COVID epidemic, for any reason other than viral pneumonia are eligible for this group. The number of included patients in this group will be similar as that of patients included in the SARS-CoV-2 group in the same center (10-20 patients) These consecutive patients will be included starting at the end of January 2020 and going back to 2019 if necessary. VAT and VAP are defined using clinical, radiological and quantitative microbiological criteria.