Post-ICU Syndrome Over Time in Patients With Respiratory Failure

Intensive Care Units (ICU) stabilize and maintain vital functions in critically ill patients, optimizing their survival. However, patients with prolonged stays may develop Post-ICU syndrome , characterized by physical, cognitive and psychological dysfunctions. This syndrome considerably affects the quality of life of patients. The risk of post-ICU syndrome is associated with factors such as advanced age, delirium, prolonged sedation and mechanical ventilation. The main objective of this study is to assess the temporal evolution of post-ICU syndrome in patients who required mechanical ventilation for more than 48 hours, analyzing its incidence, associated risk factors and the impact on their long-term quality of life. This cross-sectional study evaluates the presence of post-ICU syndrome in 2025 in patients who have been admitted to the ICU during 2021 and 2024 who required invasive mechanical ventilation for more than 48 hours. Of this total, deceased persons, those who did not give their consent, and minors will not be included.