Evaluation of the prognostic value of systemic inflammation and socioeconomic deprivation in patients with resectable colorectal liver metastases
Received 9 May 2008; received in revised form 20 August 2008; accepted 22 August 2008. published online 13 October 2008.
Abstract
Background
There is increasing evidence that the presence of a pre-operative systemic inflammatory response (SIR) independently predicts poor long-term outcome in patients with colorectal cancer (CRC). Socioeconomic deprivation was reported to correlate with the presence of the SIR and to independently predict poor outcome following primary CRC resection. The aim of this study was to determine the prognostic value of pre-operative systemic inflammatory biomarkers and socioeconomic deprivation in patients undergoing resection of colorectal liver metastases (CLM) and to examine correlations between these variables in this context.
Patients and methods
Clinicopathological data, including the Memorial Sloan-Kettering Cancer Centre Clinical Risk Score (CRS), were obtained from a prospectively maintained database for 174 patients who underwent hepatectomy for CLM between January 2000 and December 2005 at a single United Kingdom (UK) tertiary referral hepatobiliary centre. Inflammatory biomarkers (total and differential leucocyte counts, neutrophil–lymphocyte ratio, platelet count, haemoglobin, and serum albumin) were measured from routine pre-operative blood tests. Socioeconomic deprivation was measured using the Carstairs deprivation score.
Results
On multivariable analysis, poor CRS (3–5), high neutrophil count (>6.0×109/l) and low serum albumin (<40g/dl) were the only independent predictors of shortened overall survival following metastasectomy, with neutrophil count representing the greatest relative risk of death. These factors were also the only independent predictors of shortened disease-free survival following hepatectomy. Socioeconomic deprivation was associated with neither systemic inflammation nor long-term outcome in this context.
Conclusions
The presence of a pre-operative systemic inflammatory response, but not socioeconomic deprivation, independently predicts shortened survival following resection of CLM.
aCancer Biomarkers and Prevention Group, Biocentre, Departments of Biochemistry and Oncology, University of Leicester, University Road, Leicester LE1 7RH, United Kingdom
bDepartment of Hepatobiliary and Pancreatic Surgery, Leicester General Hospital, Gwendolen Road, Leicester LE5 4PW, United Kingdom
cCancer Studies and Molecular Medicine, 5th Floor, The Robert Kilpatrick Clinical Sciences Building, The Leicester Royal Infirmary, Leicester LE2 7LX, United Kingdom
Corresponding author: Address: Cancer Biomarkers and Prevention Group, Biocentre Departments of Biochemistry and Oncology, University of Leicester, University Road, Leicester LE1 7RH, United Kingdom. Tel.: +44 116 223 1822; fax: +44 116 223 1840.
ABSTRACT