# IMPACT (Index for Mortality Prediction After Cardiac Transplantation)

### IMPACT score is a risk assessment tool used to predict 1-year mortality risk following a Heart Transplantation based on 12 parameters

#### Following parameters are needed
| Parameter | Range | unit |
| --------- | ----- | ---- |
| Age | - | - |
| Serum Bilirubin | >0 | mg/dL |
| CrCl (Creatinine Clearance) | - | mL/min |
| Whether Dialysis was done between listing and transplantation | - | - |
| Gender | - | - |
| Cause of Heart Failure | - | - |
| Whether the patient had a recent infection | - | - |
| Whether Intra-Aortic Balloon Pump was implanted | - | - |
| Whether Mechanical Ventilation was done pre-transplant | - | - |
| Race of the patient | - | - |
| Whether Temporary Circulation Support was needed (incl. ECMO and e-VADs) | - | - |
| Ventricular Assist Device used | - | - | 

### Few important points:-
#### A maximum of 50 points are possible while calculating the score, Here are the ranges of the score along with the predicted risk of mortality

| Range | Risk |
| ------- | ------ |
| 0 - 4 | really low |
| 5 - 9 | low |
| 10 - 14 | moderate |
| **15 - 19** | **high** | 
| **>= 20** | **really high** | 


### Notice
Many researches state that the IMPACT score is not as accurate and that it is false in many of the cases. Clinical clues are to be referred to aswell