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Low Risk
Intermediate Risk
High Risk
Select all variables that apply. Low-risk variables are assigned 1 point, intermediate-risk variables are assigned 2 points, high-risk variables are assigned 3 points.
Low Risk
Intermediate Risk
High Risk
Variables
Score
(<5%*)
(5%-10%*)
(>10%*)
WHO FC
6MWD
NT-proBNP
plasma levels
RAP
Clinical signs of
right heart failure
Progression
of symptoms
Syncope
RA area
Pericardial
effusion
CI
2
2
2
SvO2
Divide the sum of all grades by the number of
Total Risk Score
available variables and round to the nearest integer
1 to <1.5
1.5 to <2.5
2.5 to 3
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*Likelihood of mortality after 1 year
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6MWD=6-minute walk distance; CI=cardiac index; ESC/ERS=European Society of Cardiology/European Respiratory Society; FC=functional class; RA=Right atrium; RAP=right atrial pressure; SvO2=mixed venous oxygen saturation.
†Occasional syncope during brisk exercise or orthostatic syncope ‡Repeated episodes of syncope, even with minimal physical activity
References:1. Galiè N, et al. Eur Heart J. 2016;37(1):67-119. 2. Kylhammar D, et al. Eur Heart J. 2018;39(47):4175-4181. 3. Hoeper MM, et al. Eur Respir J. 2017;50(2). pii:1700740
The parameters and thresholds in the above table are taken from the 2015 ESC/ERS Guidelines for PAH1. The scoring methodology (1=low risk, 2=intermediate risk, 3=high risk) was adapted from the Swedish PAH Registry2,3.