Evaluating the Clinical Utility of Modified Ventilator-Associated Event Criteria in Predicting ICU Mortality and Ventilator Duration: Can Less Restrictive Definitions Improve Prediction?

Inclusion Criteria: * Adult patients (age ≥ 18 years) undergoing mechanical ventilation for ≥ 48 hours. * Patients admitted to ICU for * medical * trauma * surgical conditions. Exclusion Criteria: * Age below 18 years. * extracorporeal life support (ECLS). * Incomplete or inconsistent daily monitoring data. * Patients with confirmed or suspected respiratory viral infections (e.g., influenza, COVID-19). * undergoing palliative care or with a do-not-intubate (DNI) status. * Pregnant patients due to altered physiological responses. * Patients ventilated for less than 48 hours. * chronic ventilator dependency prior to ICU admission. * incomplete medical documentation impacting data collection or outcome analysis. * severe immunosuppression, such as recent bone marrow or organ transplant recipients, and those on high-dose corticosteroids.