Systemic inflammatory response and survival in patients with localised prostate cancer: 10-year follow-up

Abstract

Aim: To examine the prognostic value of circulating C-reactive protein concentrations at diagnosis in patients with organ-confined prostate cancer.

Patients and methods: Ninety-eight patients with histologically proven clinically localised prostate cancer were studied. Clinical stage, tumour grade, circulating PSA and C-reactive protein concentrations at diagnosis were recorded.

Results: The majority of patients was under the age of 70 years and had low-grade tumours. Approximately half the patients received radical local treatment. During the follow-up period (median 10 years) 38 patients died, of whom 18 died of prostate cancer, 6 of other cancers and 14 of non-cancer causes. On univariate survival analysis, age (p < 0.001), Gleason score (p < 0.05), C-reactive protein (p < 0.05) and treatment (p < 0.05) were significant predictors of overall survival. On univariate survival analysis, age (p < 0.001), Gleason score (p < 0.05) and C-reactive protein (p < 0.05) were significant predictors of prostate cancer-specific survival. On multivariate analysis of these significant variables age (HR 4.88, 95% CI 1.79-13.29, p < 0.01), Gleason score (HR 2.16, 95% CI 1.23-3.78, p < 0.01) and C-reactive protein (HR 1.88, 95% CI 1.01-3.52, p < 0.05) remained significant independent predictors of prostate cancer-specific survival.

Conclusion: The results of the present study show that the presence of a systemic inflammatory response, at diagnosis, independently predicts poor long-term cancer outcome in patients with localised prostate cancer.