Background: Prone position has been diffusely applied in mechanically ventilated COVID-19 patients. Our aim is ascertaining the association between the physiologic response and the length of the first cycle of prone position and intensive care unit (ICU) mortality. Methods: International registry including COVID-19 adult patients who underwent prone positioning. We measured the difference for arterial partial pressure of oxygen to inspired fraction of oxygen ratio (PaO2/FiO2), ventilatory ratio, and respiratory system compliance (Crs) between baseline supine position and at either the end of the first cycle of prone position (Delta-PP) or re-supination (Delta-PostPP). Results: We enrolled 1816 patients from 53 centers. Delta-PP and Delta-PostPP for PaO2/FiO2 were both associated with ICU mortality [OR (95% CI) 0.48 (0.38, 0.59), and OR (95% CI) 0.60 (0.52, 0.68), respectively]. Ventilatory ratio had a non-linear relationship with ICU mortality for Delta-PP (p = 0.022) and Delta-PostPP (p = 0.004). Delta-PP, while not Delta-PostPP, for Crs was associated with ICU mortality [OR (95% CI) 0.80 (0.65, 0.98)]. The length of the first cycle of prone position showed an inverse relationship with ICU mortality [OR (95% CI) 0.82 (0.73, 0.91)]. At the multivariable analysis, the duration of the first cycle of prone position, Delta-PP and Delta-PostPP for PaO2/FiO2, and Delta-PostPP for ventilatory ratio were independently associated with ICU mortality. Conclusion: In COVID-19 patients with acute respiratory failure receiving invasive mechanical ventilation and prone positioning, the physiological response to prone position is associated with ICU mortality. Prolonging the duration of the first cycle of prone position is associated with improved survival.
Oxygenation improvement and duration of prone positioning are associated with ICU mortality in mechanically ventilated COVID-19 patients / De Rosa, S.; Sella, N.; Bellani, G.; Foti, G.; Cortegiani, A.; Lorenzoni, G.; Gregori, D.; Boscolo, A.; Cattin, L.; Elhadi, M.; Fullin, G.; Garofalo, E.; Gottin, L.; Grassetto, A.; Maggiore, S. M.; Momesso, E.; Peta, M.; Poole, D.; Rona, R.; Tiberio, I.; Zanoletti, A.; Rezoagli, E.; Navalesi, P.; Zoppellaro, E.; Zini, F.; Zardin, M.; Zarantonello, F.; Zanaty, M.; Zambelli, V.; Vetrugno, L.; Vergine, S.; Vergano, P.; Vallecoccia, M. S.; Valente, P.; Liouras, R. V.; Urso, L.; Turvani, F.; Troisi, L.; Tritapepe, L.; Tritapepe, F.; Travaglini, T.; Torsello, G.; Tonzar, M.; Toniolo, A.; Toffoletto, F.; Testini, D.; Terranova, F.; Tenaglia, T.; Tartivita, C. N.; Talarico, F.; Talamonti, M.; Spina, S.; Spadaro, S.; Sorrentino, S.; Soragni, A.; Soccorsi, F.; Smiraglia, S.; Simoni, C.; Simari, S.; Shames, H.; Shalabi, L. E.; Serano, L.; Serana, T.; Serafini, E.; Schweiger, V.; Schinetti, V.; Schiavolin, C.; Scaramuzzo, G.; Saraceni, E.; Santi, C.; Santi, J.; Sammarco, A. M.; Salvagno, M.; Salih, R.; Saliga, A. A.; Sales, G.; Said, A.; Saglietti, F.; Saggioro, D.; Russotto, V.; Rondelli, E.; Rodi, A.; Rocco, M.; Roat, E.; Rizzello, V.; Ricci, M.; Restivo, A.; Repishti, M.; Randon, G.; Ramahi, L.; Rama, J.; Cominesi, D. R.; Premoli, C.; Predonzani, N.; Prandini, A.; Pozzi, M.; Ponzone, G.; Fritz, M. P.; Polati, E.; Pistollato, E.; Pezzi, A.; Pettenuzzo, T.; Persona, P.; Perona, M.; Pavan, F.; Pasqua, L. A.; Pasin, L.; Parimisi, Z.; Parente, M.; Papaccio, F.; Paolo, V.; Panciera, G.; Paluzzano, G.; Pagani, M.; Ottolina, D.; Othman, E.; Orlando, A.; Ongaro, S.; Olivieri, S.; Olivieri, A. M.; Nuzzo, N.; Nova, A.; Nicoletti, R.; Neri, G.; Munari, E.; Moschini, G.; Moretto, L.; Montrucchio, G.; Montomoli, J.; Mongodi, S.; Mojoli, F.; Mogahed, M.; Milan, B.; Menato, L.; Melchior, L.; Medici, F.; Mazzanti, F.; Maugeri, J. G.; Mattson, J.; Matteo, M.; Martini, A.; Martinez, E.; Martinetti, N.; Martin, M. A.; Marrazzo, F.; Marinello, A.; Mariani, I.; Maiorelli, G.; Magliocca, A.; Lucchini, A.; Luccarelli, G.; Lubian, M.; Longhini, F.; Lombardo, A.; Scrudato, G. L.; Lion, J.; Linassi, F.; Lerose, A.; Langer, T.; Landolfi, L.; La Spisa, C.; La Rosa, R.; Kredan, A. A.; Khalleefah, A.; Jovinelli, C.; Isgro, S.; Ippolito, M.; Iovino, G. C.; Iob, T.; Ilaria, B.; Hussein, A. A. R. M.; Hashim, H. T.; Haddud, A.; Guzzardella, A.; Guerra, D.; Greco, M.; Grande, A.; Gottardi, B.; Golino, G.; Godi, I.; Giuntoli, L.; Girardis, M.; Giani, M.; Geremia, M.; Geraldini, F.; Gatto, I.; Gasperi, S.; Ganzerla, B.; Gandolfi, L.; Gamberini, E.; Gamberini, E.; Gamberini, L.; Furlani, E.; Fumagalli, R.; Frontera, R.; Frisella, S.; Franchetti, N.; Francesconi, A. G.; Francesco, S.; Fracchia, R.; Fossali, T.; Forin, E.; Fior, I.; Finotto, E.; Filippone, F.; Ferrante, L.; Ferluga, M.; Fabbris, M.; Esaadi, H.; Emara, M. M.; Elisa, G.; Elbakheet, D. E.; Donatelli, C.; Donadello, K.; Di Tizio, L.; Di Noto, G.; Di Matteo, L.; Di Giannatale, P.; Di Giannantonio, A.; Di Fede, A.; Di Blasi, S.; Devigili, A.; De Cassai, A.; Davicco, L.; Danzi, V.; Dall'Ara, L.; Mora, E. D.; Cursio, W.; Crivellari, C.; Cricca, V.; Corrado, S.; Cornacchia, N.; Corea, A.; Congedi, S.; Coloretti, I.; Colombo, R.; Colombo, E.; Cilloni, N.; Cesana, M.; Graziadei, M. C.; Cedrone, M.; Cecconi, M.; Ceccaroni, F.; Cavinato, M.; Catalisano, G.; Castelli, A.; Carrara, A.; Carlon, R.; Canepa, C.; Campagnolo, M.; Calocero, T.; Caironi, P.; Bussone, G.; Busani, S.; Bruscagnin, C.; Bruni, A.; Brumana, N.; Bristot, A.; Brazzi, L.; Bozzon, V.; Boscolo, G.; Bosco, V.; Borga, S.; Boni, E.; Bonetta, E.; Bonazzi, B.; Bombino, M.; Boffa, N.; Bitondo, M. M.; Bisi, M.; Binnawara, M.; Biasetto, M.; Bianchin, A.; Bianchetti, G.; Biamonte, E.; Biagioni, E.; Berti, M.; Berta, G.; Berruto, F.; Benini, A.; Bellissima, A.; Bellin, M.; Bellandi, M.; Bassi, M.; Barotti, M.; Barattini, M.; Ballin, A.; Bakri, A.; Bakeer, H. B.; Badii, F.; Awad, A. K.; Aritzu, M.; Anzellotti, G. M.; Antonini, B.; Anna, B.; Andriolo, E.; Andrea, C.; Anderloni, M.; Al-Sadawi, M.; Alqandouz, R. A.; Al-juaifari, M.; Alessio, R.; Aldhalia, A.; Alampi, D.; Addesa, S.; Aceto, R.; Abuzaid, T. A.; Abusalama, A.; Abuelyamen, A.; Abodina, A. M.; Abdullah, E.; Abdelmageed, A. A.; Abdel-Maboud Abdel-Maboud, M.; Abastanotti, M.. - In: ANNALS OF INTENSIVE CARE. - ISSN 2110-5820. - 15:1(2025), pp. 20-30. [10.1186/s13613-025-01438-y]
Oxygenation improvement and duration of prone positioning are associated with ICU mortality in mechanically ventilated COVID-19 patients
Lorenzoni G.;Garofalo E.;Navalesi P.;Vergine S.;Valente P.;Torsello G.;Talamonti M.;Spina S.;Spadaro S.;Saraceni E.;Santi C.;Russotto V.;Roat E.;Rizzello V.;Pozzi M.;Pezzi A.;Pagani M.;Munari E.;Mongodi S.;Medici F.;Mazzanti F.;Matteo M.;Ippolito M.;Girardis M.;Gamberini L.;Filippone F.;Di Noto G.;Di Fede A.;Dall'Ara L.;Crivellari C.;Corrado S.;Coloretti I.;Cesana M.;Carrara A.;Campagnolo M.;Bonazzi B.;Biagioni E.;Berti M.;Benini A.;Bassi M.;
2025
Abstract
Background: Prone position has been diffusely applied in mechanically ventilated COVID-19 patients. Our aim is ascertaining the association between the physiologic response and the length of the first cycle of prone position and intensive care unit (ICU) mortality. Methods: International registry including COVID-19 adult patients who underwent prone positioning. We measured the difference for arterial partial pressure of oxygen to inspired fraction of oxygen ratio (PaO2/FiO2), ventilatory ratio, and respiratory system compliance (Crs) between baseline supine position and at either the end of the first cycle of prone position (Delta-PP) or re-supination (Delta-PostPP). Results: We enrolled 1816 patients from 53 centers. Delta-PP and Delta-PostPP for PaO2/FiO2 were both associated with ICU mortality [OR (95% CI) 0.48 (0.38, 0.59), and OR (95% CI) 0.60 (0.52, 0.68), respectively]. Ventilatory ratio had a non-linear relationship with ICU mortality for Delta-PP (p = 0.022) and Delta-PostPP (p = 0.004). Delta-PP, while not Delta-PostPP, for Crs was associated with ICU mortality [OR (95% CI) 0.80 (0.65, 0.98)]. The length of the first cycle of prone position showed an inverse relationship with ICU mortality [OR (95% CI) 0.82 (0.73, 0.91)]. At the multivariable analysis, the duration of the first cycle of prone position, Delta-PP and Delta-PostPP for PaO2/FiO2, and Delta-PostPP for ventilatory ratio were independently associated with ICU mortality. Conclusion: In COVID-19 patients with acute respiratory failure receiving invasive mechanical ventilation and prone positioning, the physiological response to prone position is associated with ICU mortality. Prolonging the duration of the first cycle of prone position is associated with improved survival.| File | Dimensione | Formato | |
|---|---|---|---|
|
2025 DeRosaPROVENT.pdf
Open access
Tipologia:
VOR - Versione pubblicata dall'editore
Dimensione
2.41 MB
Formato
Adobe PDF
|
2.41 MB | Adobe PDF | Visualizza/Apri |
Pubblicazioni consigliate

I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris




