Zhang et al reported the Peritumoral Artery Scoring System (PASS) for predicting a decline in renal function after partial nephrectomy for tumor. The authors are from Shanghai Jiao Tong University in China.
Patient selection: partial nephrectomy for tumor
Outcome: decline in renal function after surgery
Parameters:
(1) type of peritumoral artery
(2) diameter of peritumoral artery
Peritumoral Artery
Diameter
Risk Group
interlobar (IV), interlobar branch and arcuate arteries (V), or N/A on CTA
< 2 mm
low
segmental (III)
NA
intermediate
III, IV, V
>= 2 mm
intermediate
anterior or posterior divisions (II); renal arteries (I)
NA
high
Performance:
• The area under the ROC curve for decline in eGFR was 0.87.
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