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Colorectal Peritoneal Metastases Prognostic Surgical Score (COMPASS) of Simkens et al

Description

Simkens et al reported the Colorectal Peritoneal Metastases Prognostic Surgical Score (COMPASS). This can help in the evaluation of a patient with colorectal cancer metastatic to the peritoneum. The authors are from Catharina Hospital Eindhoven and Erasmus MC in The Netherlands.


Patient selection: metastatic colorectal cancer to the peritoneum

 

Management: cytoreductive surgery and HIPEC (hyperthermic intraperitoneal chemotherapy)

 

Parameters:

(1) age in years from 20 to 90 years

(2) PCI score from 0 to 30

(3) N2 lymph node status

(4) signet ring cell histology

 

Parmeter

Finding

Points

age in years

 

(0.5714 * (age)) - 11.42857

PCI score

 

3.33 * (PCI)

N2 lymph node status

no

0

 

yes

19.22

signet ring cell histology

no

0

 

yes

39.30

 

total score =

= SUM(points for all 4 parameters)

 

Interpretation:

• minimum score: 0

• maximum score: 198.52

• The higher the score the worse the survival.

 

Score

2 Year Overall Survival

< 21.2

> 90%

21.2 to 123.3

(-0.000041273 * ((score)^2)) - (0.0022598 * (score)) + 0.97915

> 123.3

< 10%

 

Performance:

• The area under the ROC curve is 0.72.


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