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Financial support was provided by the Instituto de Salud Carlos III de Madrid (COV20/00110, ISCIII), Fondo Europeo de Desarrollo Regional (FEDER), "Una manera de hacer Europa" and the Centro de Investigacion Biomedica En Red - Enfermedades Respiratorias (CIBERES). D. de Gonzalo-Calvo has received financial support from the Instituto de Salud Carlos III (Miguel Servet 2020: CP20/00041), co-funded by European Social Fund (ESF)/"Investing in Your Future". Funding information for this article has been deposited with the Crossref Funder Registry.

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Effects of intubation timing in patients with COVID-19 throughout the four waves of the pandemic: a matched analysis

Publicated to:European Respiratory Journal. 61 (3): 2201426- - 2023-03-01 61(3), DOI: 10.1183/13993003.01426-2022

Authors: Riera, Jordi; Barbeta, Enric; Tormos, Adrian; Mellado-Artigas, Ricard; Ceccato, Adrian; Motos, Anna; Fernandez-Barat, Laia; Ferrer, Ricard; Garcia-Gasulla, Dario; Penuelas, Oscar; Lorente, Jose Angel; Menendez, Rosario; Roca, Oriol; Palomeque, Andrea; Ferrando, Carlos; Sole-Violan, Jordi; Novo, Mariana; Boado, Maria Victoria; Tamayo, Luis; Estella, Angel; Galban, Cristobal; Trenado, Josep; Huerta, Arturo; Loza, Ana; Aguilera, Luciano; Garmendia, Jose Luis Garcia; Barbera, Carme; Gumucio, Victor; Socias, Lorenzo; Franco, Nieves; Valdivia, Luis Jorge; Vidal, Pablo; Sagredo, Victor; Ruiz-Garcia, Angela Leonor; Varela, Ignacio Martinez; Lopez, Juan; Pozo, Juan Carlos; Nieto, Maite; Gomez, Jose M; Blandino, Aaron; Valledor, Manuel; Bustamante-Munguira, Elena; Sanchez-Miralles, Angel; Penasco, Yhivian; Barberan, Jose; Ubeda, Alejandro; Amaya-Villar, Rosario; Martin, Maria Cruz; Jorge, Ruth; Caballero, Jesus; Marin, Judith; Anon, Jose Manuel; Sipmann, Fernando Suarez; Albaiceta, Guillermo M; Castellanos-Ortega, Alvaro; Adell-Serrano, Berta; Catalan, Mercedes; Gandara, Amalia Martinez de la; Ricart, Pilar; Carbajales, Cristina; Rodriguez, Alejandro; Torre, Mari C de la; Gallego, Elena; Carbonell, Nieves; Gonzalez, Jessica; de Gonzalo-Calvo, David; Barbe, Ferran; Torres, Antoni

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Abstract

Background The primary aim of our study was to investigate the association between intubation timing and hospital mortality in critically ill patients with coronavirus disease 2019 (COVID-19)-associated respiratory failure. We also analysed both the impact of such timing throughout the first four pandemic waves and the influence of prior noninvasive respiratory support on outcomes.Methods This is a secondary analysis of a multicentre, observational and prospective cohort study that included all consecutive patients undergoing invasive mechanical ventilation due to COVID-19 from across 58 Spanish intensive care units (ICUs) participating in the CIBERESUCICOVID project. The study period was between 29 February 2020 and 31 August 2021. Early intubation was defined as that occurring within the first 24 h of ICU admission. Propensity score matching was used to achieve a balance across baseline variables between the early intubation cohort and those patients who were intubated after the first 24 h of ICU admission. Differences in outcomes between early and delayed intubation were also assessed. We performed sensitivity analyses to consider a different time-point (48 h from ICU admission) for early and delayed intubation.Results Of the 2725 patients who received invasive mechanical ventilation, a total of 614 matched patients were included in the analysis (307 for each group). In the unmatched population, there were no differences in mortality between the early and delayed groups. After propensity score matching, patients with delayed intubation presented higher hospital mortality (27.3% versus 37.1%; p=0.01), ICU mortality (25.7% versus 36.1%; p=0.007) and 90-day mortality (30.9% versus 40.2%; p=0.02) compared with the early intubation group. Very similar findings were observed when we used a 48-h time-point for early or delayed intubation. The use of early intubation decreased after the first wave of the pandemic (72%, 49%, 46% and 45% in the first, second, third and fourth waves, respectively; first versus second, third and fourth waves p

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