Rees et al reported scores for predicting survival following resection of hepatic metastases from a colorectal cancer. One score gives a preoperative assessment and the second postoperative. The authors are from North Hampshire Hospital in Basingstoke and Imperial College London.
Patient selection: resectable hepatic metastases from a colorectal cancer
Outcome: various measures of cancer-specific survival
Parameters:
(1) lymph nodes status of primary tumor (N)
(2) differentiation of primary colorectal cancer
(3) CEA level at time of hepatectomy in ng/mL
(4) largest tumor diameter in cm
(5) hepatic resection margin
(6) extrahepatic metastatic disease
Parameter |
Finding |
Points |
lymph node status |
negative (N0) |
0 |
|
positive (N1 or N2) |
2 |
differentiation |
well-differentiated |
0 |
|
moderately differentiated |
2 |
|
poorly differentiated |
4 |
CEA level |
< 6 ng/mL |
0 |
|
6 to 60 ng/mL |
1 |
|
> 60 ng/mL |
3 |
largest tumor diameter |
< 5 cm |
0 |
|
5 to 10 cm |
2 |
|
> 10 cm |
7 |
hepatic resection margin |
negative |
0 |
|
positive |
11 |
extrahepatic metastases |
no |
0 |
|
yes |
4 |
total score =
= SUM(points for all parameters)
Interpretation:
• minimum score: 0
• maximum score: 31
• The higher the score the worse the survival.
Total Score |
5-Year Cancer Specific Survival |
Median Survival in Years |
0 |
64% |
7.4 |
5 |
49% |
4.9 |
10 |
34% |
3.4 |
15 |
21% |
2.2 |
20 |
11% |
1.5 |
25 |
5% |
1.1 |
30 |
2% |
0.7 |
Specialty: Hematology Oncology, Gastroenterology