Oncotarget

Research Papers:

Comparison of the prognostic impact and combination of preoperative inflammation-based and/or nutritional markers in patients with stage II gastric cancer

Takahiro Toyokawa _, Kazuya Muguruma, Tatsuro Tamura, Katsunobu Sakurai, Ryosuke Amano, Naoshi Kubo, Hiroaki Tanaka, Masakazu Yashiro, Kosei Hirakawa and Masaichi Ohira

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Oncotarget. 2018; 9:29351-29364. https://doi.org/10.18632/oncotarget.25486

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Abstract

Takahiro Toyokawa1, Kazuya Muguruma1, Tatsuro Tamura1, Katsunobu Sakurai2, Ryosuke Amano1, Naoshi Kubo2, Hiroaki Tanaka1, Masakazu Yashiro1, Kosei Hirakawa1 and Masaichi Ohira1

1Department of Surgical Oncology, Osaka City University Graduate School of Medicine, Abeno-ku, Osaka 545-8585, Japan

2Department of Gastroenterological Surgery, Osaka City General Hospital, Miyakojima-ku, Osaka 534-0021, Japan

Correspondence to:

Takahiro Toyokawa, email: t-toyokawa@med.osaka-cu.ac.jp

Keywords: gastric cancer; gastrectomy; prognostic factor; nutrition; inflammation

Received: October 05, 2017     Accepted: May 07, 2018     Published: June 29, 2018

ABSTRACT

Background: The aim of this study was to evaluate and compare the prognostic value of preoperative established inflammation-based and/or nutritional markers, C-reactive protein-to-albumin ratio (CAR), neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio, Prognostic Nutritional Index (PNI), Glasgow Prognostic Score, and prognostic index in patients with stage II gastric cancer. We then developed a new prognostic index based on the results of our investigation.

Methods: This study retrospectively reviewed 240 consecutive patients who underwent R0 resection for stage II gastric cancer. Time-dependent receiver operating characteristic curve analyses were performed to assess discrimination ability and to determine optimal cut-off values. Prognostic factors predicting overall survival (OS) were analyzed using Cox proportional hazards models.

Results: Among inflammation-based and/or nutritional markers, multivariate analyses demonstrated CAR and PNI as independent prognostic factors for OS (hazard ratio (HR) 1.707, 95% confidence interval (CI) 1.016-2.867, p=0.044 and HR 0.415, 95%CI 0.234-0.736, p=0.003, respectively). CAR-PNI score, constructed as the combination of CAR and PNI, was significantly associated with OS, relapse-free survival and cancer-specific survival (p<0.001 each). Multivariate analysis revealed CAR-PNI score as an independent prognostic factor for OS (HR for CAR-PNI score 1: 2.432, 95%CI 1.155-5.118; HR for CAR-PNI score 2: 4.099, 95%CI 1.835-9.157; p=0.002).

Conclusions: CAR and PNI are independent prognostic factors providing superior prediction of survival compared to other inflammation-based and/or nutritional markers. CAR-PNI score offers a novel and promising prognostic indicator for patients with stage II gastric cancer.


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