Ficarra et al reported a "simplified" PADUA score for evaluating a patient with a renal tumor who may be a candidate for a partial nephrectomy. The authors are from multiple institutions in Italy.
PADUA = Preoperative Aspects and Dimensions Used for an Anatomical
SPARE = Simplified PADUA REnal
Patient selection: renal tumor, candidate for partial nephrectomy
Parameters:
(1) exophytic rate
(2) renal rim
(3) renal sinus
(4) tumor size in cm
Parameter
Finding
Points
exophytic rate
>= 50%
0
> 0 and < 50%
1
0% (entirely endophytic)
2
rim location
lateral
0
medial
2
renal sinus involvement
no
0
yes
3
diameter of tumor
<= 4.0 cm
0
4.1 to 7 cm
2
> 7 cm
4
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 11
• The higher the score the greater the risk of complications associated with surgery.
Score
Risk Group
0 to 3
low
4 to 7
intermediate
8 to 10
high
The tumor can also be designated as anterior or posterior facing, with the suffix "a" or "p".
The score can also by extended by adding points for the tumor CSA (contact surface area), polar location and/or urinary collecting system involvement.
Parameter
Finding
Points
tumor CSA
<= 20 square cm
0
> 20 square cm
2
polar location
upper or lower
0
medium
1
urinary collecting system involvement
no
0
yes
2
Performance:
• The area under the ROC curve is 0.66.
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