The purpose of this study is to develop a new tool that uses information collected before life-sustaining treatments are withdrawn to better predict whether a patient will die within the time needed for organ donation to be possible. The tool created should help improve planning for organ donation and provide families and healthcare teams with more accurate information.

Inclusion Criteria:

1. Age ≥ 19;
2. Eligible for DCD

Exclusion Criteria:

Exclusion criteria will consist of :

1. concurrent vasopressor doses of norepinephrine >0.05 mcg/kg/min (or dose equivalent)
2. PaO2/FiO2 ratio <150 mmHg
3. complete high cervical spinal cord injury (C5 and above)
4. cardiac support devices (e.g., ECMO, balloon pump, ventricular assist device)
5. pacemaker in situ
6. tracheostomy

ICU

Data will be avaiable to be shared on demand. However, statistical analysis and prediction modeling computer code will be made publicly available on GitHub.