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Use of Body Mass Index to Predict the Prognosis of Patients with Remnant Gastric Cancer.
Yonago Acta Medica 2017 June
BACKGROUND: Remnant gastric cancer (RGC) is an uncommon form of gastric cancer. The aim of this study was to investigate factors influencing the prognosis of patients with RGC.
METHODS: A total of 49 patients diagnosed with RGC and 214 patients with primary upper third gastric cancer (PUGC) at our institution between January 1990 and December 2014 were included. The clinicopathological characteristics, prognosis, and factors influencing prognosis were compared.
RESULTS: The body mass index (BMI) of RGC was significantly lower than that for PUGC (P < 0.0001). Multivariate analysis revealed that BMI and the depth of tumor invasion were independent prognostic factors in RGC. ROC analysis indicated that an optimal cut-off value for BMI was 20.6. Based on this value, patients were divided into two groups: BMI(High) (≥ 20.6) and BMI(Low) (< 20.6). The 5-year survival rates of patients with BMI(High) early gastric cancer, BMI(High) advanced gastric cancer, BMI(Low) early gastric cancer, and BMI(Low) advanced gastric cancer were 90%, 83.3%, 64.3% and 33.8%, respectively, and the difference was statistically significant (P = 0.00023).
CONCLUSION: Our retrospective study indicated a poor prognosis of RGC compared with PUGC, and that BMI could predict the prognosis of RGC. The prognosis of patients with BMI(Low) advanced RGC was extremely poor.
METHODS: A total of 49 patients diagnosed with RGC and 214 patients with primary upper third gastric cancer (PUGC) at our institution between January 1990 and December 2014 were included. The clinicopathological characteristics, prognosis, and factors influencing prognosis were compared.
RESULTS: The body mass index (BMI) of RGC was significantly lower than that for PUGC (P < 0.0001). Multivariate analysis revealed that BMI and the depth of tumor invasion were independent prognostic factors in RGC. ROC analysis indicated that an optimal cut-off value for BMI was 20.6. Based on this value, patients were divided into two groups: BMI(High) (≥ 20.6) and BMI(Low) (< 20.6). The 5-year survival rates of patients with BMI(High) early gastric cancer, BMI(High) advanced gastric cancer, BMI(Low) early gastric cancer, and BMI(Low) advanced gastric cancer were 90%, 83.3%, 64.3% and 33.8%, respectively, and the difference was statistically significant (P = 0.00023).
CONCLUSION: Our retrospective study indicated a poor prognosis of RGC compared with PUGC, and that BMI could predict the prognosis of RGC. The prognosis of patients with BMI(Low) advanced RGC was extremely poor.
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