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Published in: International Journal of Clinical Oncology 3/2017

01-06-2017 | Original Article

Preoperative platelet–lymphocyte ratio is an independent prognostic marker and superior to carcinoembryonic antigen in colorectal peritoneal carcinomatosis patients undergoing cytoreductive surgery and hyperthermic intraperitoneal chemotherapy

Authors: Tiffany Sin Hui Bong, Grace Hwei Ching Tan, Claramae Chia, Khee Chee Soo, Melissa Ching Ching Teo

Published in: International Journal of Clinical Oncology | Issue 3/2017

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Abstract

Objective

The aim of this study was to examine the prognostic significance of preoperative inflammatory-based indices, platelet–lymphocyte ratio (PLR), neutrophil–lymphocyte ratio (NLR), and carcinoembryonic antigen (CEA) in predicting overall survival (OS) in patients with colorectal peritoneal carcinomatosis (CPC) treated with cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC).

Methods

Sixty patients with pathologically confirmed CPC treated with CRS and HIPEC between 2003 and 2015 were included. Levels of preoperative PLR, NLR, and CEA were recorded. Univariate and multivariate analyses were conducted to identify prognostic factors associated with OS.

Results

Median OS was 36 months (95% CI, 26.6–45.4) and 5-year OS was 40.5% (95% CI, 27.3–51.6%). Preoperative PLR (p = 0.034) and CEA (p = 0.036) were found to be significant prognostic markers of OS, whereas NLR did not affect OS. PLR remained significant on multivariate analysis (hazard ratio, 1.035; 95% CI, 1.027–1.043; p < 0.001).

Conclusion

Our study indicates that preoperative PLR may be used as a prognostic marker in CPC patients undergoing CRS and HIPEC and could be useful in the preoperative setting when selecting patients for surgery. The subset of patients with PLR > 300 have a median OS of 5 months (95% CI, 0–24.6 months), indicating that CRS and HIPEC may not be superior to systemic chemotherapy in this subset of patients.
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Metadata
Title
Preoperative platelet–lymphocyte ratio is an independent prognostic marker and superior to carcinoembryonic antigen in colorectal peritoneal carcinomatosis patients undergoing cytoreductive surgery and hyperthermic intraperitoneal chemotherapy
Authors
Tiffany Sin Hui Bong
Grace Hwei Ching Tan
Claramae Chia
Khee Chee Soo
Melissa Ching Ching Teo
Publication date
01-06-2017
Publisher
Springer Japan
Published in
International Journal of Clinical Oncology / Issue 3/2017
Print ISSN: 1341-9625
Electronic ISSN: 1437-7772
DOI
https://doi.org/10.1007/s10147-017-1092-3

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