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Partl, R; Lukasiak, K; Thurner, EM; Renner, W; Stranzl-Lawatsch, H; Langsenlehner, T.
The Elevated Pre-Treatment C-Reactive Protein Predicts Poor Prognosis in Patients with Locally Advanced Rectal Cancer Treated with Neo-Adjuvant Radiochemotherapy.
Diagnostics (Basel). 2020; 10(10): Doi: 10.3390/diagnostics10100780 [OPEN ACCESS]
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Führende Autor*innen der Med Uni Graz
Partl Richard
Co-Autor*innen der Med Uni Graz
Langsenlehner Tanja
Paal Katarzyna
Renner Wilfried
Stranzl-Lawatsch Heidi
Thurner Eva-Maria

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The aim of the present study was to investigate the association of the pre-treatment C-reactive protein (CRP) plasma level with survival outcomes in a cohort of 423 consecutive patients with locally advanced rectal cancer treated with neo-adjuvant radiochemotherapy followed by surgical resection. To evaluate the prognostic value of the CRP level for clinical endpoints recurrence-free survival (RFS), local-regional control (LC), metastases-free survival (MFS), and overall survival (OS), uni- and multivariate Cox regression analyses were applied, and survival rates were calculated using Kaplan-Meier analysis. The median follow-up time was 73 months. In univariate analyses, the pre-treatment CRP level was a significant predictor of RFS (hazard ratio (HR) 1.015, 95% CI 1.006-1.023; p < 0.001), LC (HR 1.015, 95% CI 1.004-1.027; p = 0.009), MFS (HR 1.014, 95% CI 1.004-1.023; p = 0.004), and OS (HR 1.016, 95% CI 1.007-1.024; p < 0.001). Additionally, univariate analysis identified the MRI circumferential resection margin (mrCRM) and pre-treatment carcinoembryonic antigen (CEA) as significant predictor of RFS (HR 2.082, 95% CI 1.106-3.919; p = 0.023 and HR 1.005, 95% CI 1.002-1.008; p < 0.001). Univariate analysis also revealed a significant association of the mrCRM (HR 2.089, 95% CI 1.052-4.147; p = 0.035) and CEA (HR 1.006, 95% CI 1.003-1.008; p < 0.001) with MFS. Age and CEA were prognostic factors for OS (HR 1.039, 95% CI 1.013-1.066; p = 0.003 and HR 1.005, 95% CI 1.002-1.008; p < 0.001). In multivariate analysis that included parameters with a p-level < 0.20 in univariate analysis, the pre-treatment CRP remained a significant prognostic factor for RFS (HR 1.013, 95%CI 1.001-1.025; p = 0.036), LC (HR 1.014, 95% CI 1.001-1.027; p = 0.031), and MFS (HR 1.013, 95% CI 1.000-1.027; p = 0.046). The results support the hypothesis that an elevated pre-treatment CRP level is a predictor of poor outcome. If confirmed by additional studies, this easily measurable biomarker could contribute to the identification of patients who might be candidates for more aggressive local or systemic treatment approaches or the administration of anti-inflammatory drugs.

Find related publications in this database (Keywords)
locally advanced rectal cancer
neo-adjuvant radiochemotherapy
C-reactive protein (CRP)
prognostic factor
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