Right Ventricular Failure Risk Score (RVFRS) of Matthews et al for Predicting Right Heart Failure in a Patient with Left Ventricular Assist Device (LVAD)
Matthews et al reported a score for identifying a patient who may be at risk for right-sided heart failure after being placed on a left ventricular assist device (LVAD). The authors are from the University of Michigan.
Patient selection: left ventricular assist device (LVAD)
Outcome: right ventricular failure
Parameters:
(1) need for vasopressors
(2) serum AST in IU/L
(3) serum total bilirubin in mg/dL
(4) serum creatinine in mg/dL
Parameter
Finding
Points
need for vasopressors
no
0
yes
4
serum AST
< 80 IU/L
0
>= 80 IU/L
2
serum total bilirubin
< 2.0 mg/dL
0
>= 2.0 mg/dL
2.5
serum creatinine
< 2.3 mg/dL
0
>= 2.3 mg/dL
3
total score =
= SUM(points for all 4 parameters)
Interpretation:
• minimum score: 0
• maximum score: 11.5
• The higher the score the greater the risk of right-sided heart failure.
Score
Risk Group
Percent with RV Failure
0 to 3
low
20%
4 to 5
intermediate
60%
5.5 to 11.5
high
80%
Performance:
• The area under the ROC curve is 0.73.
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