Parasiliti-Caprino et al reported a model for predicting the risk of recurrent pheochromocytoma after radical surgery. This can help to identify a patient who should be monitored more closely. The authors are from multiple institutions in Italy.
Patient selection: status post radical surgery for pheochromocytoma
Parameters:
(1) age in years
(2) PASS score (Pheochromocytoma of the Adrenal Gland Scaled Score), from 0 to 20
(3) tumor diameter in mm
(4) genetic status (any of the pheochromocytoma-related susceptibility genes such as NF-1, VHL, etc)
Parameter
Finding
Points
age in years
-0.0309 * (age)
PASS
0.1456 * (PASS)
tumor diameter
0.0124 * (diameter)
genetic status
negative
0
positive
1.6367
value of X =
= SUM(points for all of the parameters)
Years
Baseline Survival
2
0.9654
5
0.9382
10
0.8807
recurrence-free survival for z years =
= (baseline survival for z years)^(EXP(X))
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