Table 1: Open in new tab The...

The IMPACT score	The UNOS score	The RSS
Age >60 years	3	Recipient factors		Recipient age: >70 years	2.1
Serum bilirubin, mg/dl		Age >65 years	1	Recipient age: 55–70 years	1.2
0–0.99	0	Body mass index (kg/m²)		Previous cardiac surgery	1.3
1–1.99	1	30–35	1	Aetiology: congenital	2.3
2–3.99	3	>35	2	Aetiology: amyloidosis	1.8
≥4	4	MPAP >30 mmHg	1	Diabetes complicated by CVA	1.4
Creatinine clearance, ml/min		Total bilirubin		eGFR <33	2.8
≥50	0	1.5–1.9	1	eGFR 33–53	1.4
30–49	2	>1.9	2	Total bilirubin >2	1.7
<30	5	Creatinine		Intubated	1.8
Dialysis between listing and transplant	4	1.5–2.0	1	Hospitalized	1.2
Female sex	3	>2.0	2	RVAD-only	4.7
Heart failure aetiology		Previous transplant	2	ECMO	3.9
Idiopathic	0	Previous cancer	2	Extracorporeal LVAD	2.7
Ischaemic	2	Ventilator	2	Total artificial heart	2.4
Congenital	5	Mechanical circulatory support		Paracorporeal LVAD	2.7
Others	1	Noncontinuous-flow ventricular assist device	2	Hepatitis C (+) donor	2.1
Recent infection	3	Donor age: 50–55 years	1	Insulin-dependent donor	1.8
Intra-aortic balloon pump	3	Donor age: >55 years	2	Donor age: 50–59 years	1.7
Mechanical ventilation pretransplant	5	Ischaemia time >4 h	2	Donor age: 40–49 years	1.5
Race		Gender mismatch	1	Donor age: 30–39 years	1.3
White	0	Diabetes	1	Ischaemic time >6 h	1.7
African American	3	Total points	22	Ischaemic time 4–6 h	1.4
Hispanic	0			Female donor: male recipient	1.2
Others	0			Female donor: female recipient	1.2
Temporary circulatory support^a	7			Total points	49.3
Ventricular assist device
Older-generation pulsatile	3
Newer-generation continuous^b	5
HeartMate II	0
Total points	50

The IMPACT score

The UNOS score

The RSS

Recipient variable

Points

Risk factors

Points

Risk factors

Points

Age >60 years

Recipient factors

Recipient age: >70 years

2.1

Serum bilirubin, mg/dl

Age >65 years

Recipient age: 55–70 years

1.2

0–0.99

Body mass index (kg/m²)

Previous cardiac surgery

1.3

1–1.99

30–35

Aetiology: congenital

2.3

2–3.99

>35

Aetiology: amyloidosis

1.8

≥4

MPAP >30 mmHg

Diabetes complicated by CVA

1.4

Creatinine clearance, ml/min

Total bilirubin

eGFR <33

2.8

≥50

1.5–1.9

eGFR 33–53

1.4

30–49

>1.9

Total bilirubin >2

1.7

<30

Creatinine

Intubated

1.8

Dialysis between listing and transplant

1.5–2.0

Hospitalized

1.2

Female sex

>2.0

RVAD-only

4.7

Heart failure aetiology

Previous transplant

ECMO

3.9

Idiopathic

Previous cancer

Extracorporeal LVAD

2.7

Ischaemic

Ventilator

Total artificial heart

2.4

Congenital

Mechanical circulatory support

Paracorporeal LVAD

2.7

Others

Noncontinuous-flow ventricular assist device

Hepatitis C (+) donor

2.1

Recent infection

Donor age: 50–55 years

Insulin-dependent donor

1.8

Intra-aortic balloon pump

Donor age: >55 years

Donor age: 50–59 years

1.7

Mechanical ventilation pretransplant

Ischaemia time >4 h

Donor age: 40–49 years

1.5

Race

Gender mismatch

Donor age: 30–39 years

1.3

White

Diabetes

Ischaemic time >6 h

1.7

African American

Total points

Ischaemic time 4–6 h

1.4

Hispanic

Female donor: male recipient

1.2

Others

Female donor: female recipient

1.2

Temporary circulatory support^a

Total points

49.3

Ventricular assist device

Older-generation pulsatile

Newer-generation continuous^b

HeartMate II

Total points

The IMPACT score	The UNOS score	The RSS
Age >60 years	3	Recipient factors		Recipient age: >70 years	2.1
Serum bilirubin, mg/dl		Age >65 years	1	Recipient age: 55–70 years	1.2
0–0.99	0	Body mass index (kg/m²)		Previous cardiac surgery	1.3
1–1.99	1	30–35	1	Aetiology: congenital	2.3
2–3.99	3	>35	2	Aetiology: amyloidosis	1.8
≥4	4	MPAP >30 mmHg	1	Diabetes complicated by CVA	1.4
Creatinine clearance, ml/min		Total bilirubin		eGFR <33	2.8
≥50	0	1.5–1.9	1	eGFR 33–53	1.4
30–49	2	>1.9	2	Total bilirubin >2	1.7
<30	5	Creatinine		Intubated	1.8
Dialysis between listing and transplant	4	1.5–2.0	1	Hospitalized	1.2
Female sex	3	>2.0	2	RVAD-only	4.7
Heart failure aetiology		Previous transplant	2	ECMO	3.9
Idiopathic	0	Previous cancer	2	Extracorporeal LVAD	2.7
Ischaemic	2	Ventilator	2	Total artificial heart	2.4
Congenital	5	Mechanical circulatory support		Paracorporeal LVAD	2.7
Others	1	Noncontinuous-flow ventricular assist device	2	Hepatitis C (+) donor	2.1
Recent infection	3	Donor age: 50–55 years	1	Insulin-dependent donor	1.8
Intra-aortic balloon pump	3	Donor age: >55 years	2	Donor age: 50–59 years	1.7
Mechanical ventilation pretransplant	5	Ischaemia time >4 h	2	Donor age: 40–49 years	1.5
Race		Gender mismatch	1	Donor age: 30–39 years	1.3
White	0	Diabetes	1	Ischaemic time >6 h	1.7
African American	3	Total points	22	Ischaemic time 4–6 h	1.4
Hispanic	0			Female donor: male recipient	1.2
Others	0			Female donor: female recipient	1.2
Temporary circulatory support^a	7			Total points	49.3
Ventricular assist device
Older-generation pulsatile	3
Newer-generation continuous^b	5
HeartMate II	0
Total points	50

Table 1:

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The characteristics of the Index for Mortality Prediction After Cardiac Transplantation and the United Network for Organ Sharing risk scores and the risk stratification Scores

The IMPACT score		The UNOS score		The RSS
Recipient variable	Points	Risk factors	Points	Risk factors	Points
Age >60 years	3	Recipient factors		Recipient age: >70 years	2.1
Serum bilirubin, mg/dl		Age >65 years	1	Recipient age: 55–70 years	1.2
0–0.99	0	Body mass index (kg/m²)		Previous cardiac surgery	1.3
1–1.99	1	30–35	1	Aetiology: congenital	2.3
2–3.99	3	>35	2	Aetiology: amyloidosis	1.8
≥4	4	MPAP >30 mmHg	1	Diabetes complicated by CVA	1.4
Creatinine clearance, ml/min		Total bilirubin		eGFR <33	2.8
≥50	0	1.5–1.9	1	eGFR 33–53	1.4
30–49	2	>1.9	2	Total bilirubin >2	1.7
<30	5	Creatinine		Intubated	1.8
Dialysis between listing and transplant	4	1.5–2.0	1	Hospitalized	1.2
Female sex	3	>2.0	2	RVAD-only	4.7
Heart failure aetiology		Previous transplant	2	ECMO	3.9
Idiopathic	0	Previous cancer	2	Extracorporeal LVAD	2.7
Ischaemic	2	Ventilator	2	Total artificial heart	2.4
Congenital	5	Mechanical circulatory support		Paracorporeal LVAD	2.7
Others	1	Noncontinuous-flow ventricular assist device	2	Hepatitis C (+) donor	2.1
Recent infection	3	Donor age: 50–55 years	1	Insulin-dependent donor	1.8
Intra-aortic balloon pump	3	Donor age: >55 years	2	Donor age: 50–59 years	1.7
Mechanical ventilation pretransplant	5	Ischaemia time >4 h	2	Donor age: 40–49 years	1.5
Race		Gender mismatch	1	Donor age: 30–39 years	1.3
White	0	Diabetes	1	Ischaemic time >6 h	1.7
African American	3	Total points	22	Ischaemic time 4–6 h	1.4
Hispanic	0			Female donor: male recipient	1.2
Others	0			Female donor: female recipient	1.2
Temporary circulatory support^a	7			Total points	49.3
Ventricular assist device
Older-generation pulsatile	3
Newer-generation continuous^b	5
HeartMate II	0
Total points	50

The IMPACT score		The UNOS score		The RSS
Recipient variable	Points	Risk factors	Points	Risk factors	Points
Age >60 years	3	Recipient factors		Recipient age: >70 years	2.1
Serum bilirubin, mg/dl		Age >65 years	1	Recipient age: 55–70 years	1.2
0–0.99	0	Body mass index (kg/m²)		Previous cardiac surgery	1.3
1–1.99	1	30–35	1	Aetiology: congenital	2.3
2–3.99	3	>35	2	Aetiology: amyloidosis	1.8
≥4	4	MPAP >30 mmHg	1	Diabetes complicated by CVA	1.4
Creatinine clearance, ml/min		Total bilirubin		eGFR <33	2.8
≥50	0	1.5–1.9	1	eGFR 33–53	1.4
30–49	2	>1.9	2	Total bilirubin >2	1.7
<30	5	Creatinine		Intubated	1.8
Dialysis between listing and transplant	4	1.5–2.0	1	Hospitalized	1.2
Female sex	3	>2.0	2	RVAD-only	4.7
Heart failure aetiology		Previous transplant	2	ECMO	3.9
Idiopathic	0	Previous cancer	2	Extracorporeal LVAD	2.7
Ischaemic	2	Ventilator	2	Total artificial heart	2.4
Congenital	5	Mechanical circulatory support		Paracorporeal LVAD	2.7
Others	1	Noncontinuous-flow ventricular assist device	2	Hepatitis C (+) donor	2.1
Recent infection	3	Donor age: 50–55 years	1	Insulin-dependent donor	1.8
Intra-aortic balloon pump	3	Donor age: >55 years	2	Donor age: 50–59 years	1.7
Mechanical ventilation pretransplant	5	Ischaemia time >4 h	2	Donor age: 40–49 years	1.5
Race		Gender mismatch	1	Donor age: 30–39 years	1.3
White	0	Diabetes	1	Ischaemic time >6 h	1.7
African American	3	Total points	22	Ischaemic time 4–6 h	1.4
Hispanic	0			Female donor: male recipient	1.2
Others	0			Female donor: female recipient	1.2
Temporary circulatory support^a	7			Total points	49.3
Ventricular assist device
Older-generation pulsatile	3
Newer-generation continuous^b	5
HeartMate II	0
Total points	50

Temporary circulatory support includes extracorporeal membrane oxygenation and extracorporeal ventricular assist device support.

Excluding HeartMate II.

CVA: cerebrovascular accident; ECMO: extracorporeal membrane oxygenation; eGFR: estimated glomerular filtration rate; IMPACT: Index for Mortality Prediction After Cardiac Transplantation; LVAD: left ventricular assist device; MPAP: mean pulmonary artery pressure; RSS: risk stratification score; RVAD: right ventricular assist device; UNOS: United Network for Organ Sharing.

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