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Modified Systemic Inflammation Score is Useful for Risk Stratification After Radical Resection of Squamous Cell Carcinoma of the Esophagus

Mitsuro Kanda MD, FACS, Masahiko Koike MD, Chie Tanaka MD, Daisuke Kobayashi MD, Norifumi Hattori MD, Masamichi Hayashi MD, FACS, Suguru Yamada MD, FACS, Kenji Omae MD, Michitaka Fujiwara MD, Yasuhiro Kodera MD, FACS
Thoracic Oncology
Volume 26, Issue 13 / December , 2019

Abstract

Background

Inflammation plays a critical role in the development and progression of cancers. We evaluated the clinical significance of the preoperative modified systemic inflammation score (mSIS) to predict long-term outcomes of patients with esophageal squamous cell carcinoma (ESCC).

Methods

We included 443 patients who underwent curative resection of ESCC. The mSIS was formulated according to the serum albumin level (ALB) and lymphocyte-to-monocyte ratio (LMR) as follows: mSIS 0 (ALB ≥ 4.0 g/dL and LMR ≥ 3.4), mSIS 1 (ALB < 4.0 g/dL or LMR < 3.4), and mSIS 2 (ALB < 4.0 g/dL and LMR < 3.4).

Results

Patients were categorized into preoperative mSIS 0 (n = 165), mSIS 1 (n = 183), and mSIS 2 (n = 95) groups. Preoperative mSIS was significantly associated with age, preoperative body mass index, and pathological disease stage. The disease-specific survival times of patients in preoperative mSIS 0, 1, and 2 sequentially shortened (P = 0.009), and mSIS 2 was identified as an independent prognostic factor (hazard ratio 2.63, 95% confidence interval 1.33–5.27, P = 0.0053). In most patient subgroups, the mSIS was associated with greater risk of disease-specific death. A stepwise increase in the prevalence of hematogenous recurrences was directly proportion to the mSIS. When patients were subdivided by mSIS before neoadjuvant treatment, there were no significant differences in disease-specific survival.

Conclusions

Our findings demonstrate that the preoperative mSIS may serve as a powerful prognosticator of ESCC that definitively stratifies clinical outcomes as well as a tool for selecting treatment strategies.

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