Halls et al reported the Southampton score for predicting the difficulty of performing a laparoscopic liver resection. The authors are from University Hospital Southampton, University of Southampton, Ghent University, Groeninge Hospital, San Raffaele Hospital, Oslo University Hospital, University of Oslo, Antoine-Beclere Hospital and University of Navarra Hospital.
Patient selection: laparoscopic liver resection
Parameters:
(1) neoadjuvant chemotherapy
(2) previous open liver resection
(3) type of lesion
(4) diameter of the lesion in cm
(5) classification of the resection
Parameter
Finding
Points
neoadjuvant chemotherapy
no
0
yes
1
previous open resection
no
0
yes
5
type of lesion
benign
0
malignant
2
diameter
< 3 cm
0
3 to 5 cm
2
> 5 cm
3
resection
minor
0
technically major
2
anatomically major
4
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 15
Score
Risk Group
0 to 2
low (< 10%)
3 to 5
moderate (10-20%)
6 to 9
high (20-50%)
10 to 15
extremely high (> 50%)
Performance:
• The area under the ROC curve for intra-operative complications was 0.68.
• The area under the ROC curve for 90-day mortality was 0.77.
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