• F Frutos-Vivar, O Peñuelas, A Muriel, J Mancebo, A García-Jiménez, R de Pablo, M Valledor, M Ferrer, M León, J M Quiroga, S Temprano, I Vallverdú, R Fernández, F Gordo, A Anzueto, and A Esteban.
• Hospital Universitario de Getafe, Madrid, España. Electronic address: fernando.frutos@salud.madrid.org.
• Med Intensiva. 2021 Jun 4.

PurposeTo evaluate changes in the disconnection of mechanical ventilation in Spain from 1998 to 2016.DesignPost-hoc analysis of four cohort studies.Ambit138 Spanish ICUs.Patients2141 patients scheduled extubated.InterventionsNone.Variables Of InterestDemographics, reason for mechanical ventilation, complications, methods for disconnection, failure on the first attempt at disconnection, duration of weaning, reintubation, post-reintubation tracheotomy, ICU stay and mortality.ResultsThere was a significant increase (p<0.001) in the use of gradual reduction of support pressure. The adjusted probability of using the gradual reduction in pressure support versus a spontaneous breathing trial has increased over time, both for the first attempt at disconnection (taking the 1998 study as a reference: odds ratio 0.99 in 2004, 0.57 in 2010 and 2.43 in 2016) and for difficult/prolonged disconnection (taking the 1998 study as a reference: odds ratio 2.29 in 2004, 1.23 in 2010 and 2.54 in 2016). The proportion of patients extubated after the first attempt at disconnection has increased over time. There is a decrease in the ventilation time dedicated to weaning (from 45% in 1998 to 36% in 2016). However, the duration in difficult/prolonged weaning has not decreased (median 3 days in all studies, p=0.435).ConclusionsThere have been significant changes in the mode of disconnection of mechanical ventilation, with a progressive increase in the use of gradual reduction of pressure support. No relevant changes in outcomes have been observed.Copyright © 2021 Elsevier España, S.L.U. y SEMICYUC. All rights reserved.

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