Inclusion Criteria: Patients aged 18-99 who were admitted to Internal Medicine Department A at Meir Hospital in Kfar Saba from January 2020 to January 2021 (inclusive), and required mechanical ventilation.  -  Exclusion Criteria: Patients who were sedated and ventilated for palliative care only without any fututre plan for weaning them of ventilation, or patients in whom there was a deviation from the treatment protocol  -