Journal
DIGESTIVE SURGERY
Volume 32, Issue 6, Pages 480-486Publisher
KARGER
DOI: 10.1159/000440654
Keywords
Gastric cancer; Body mass index; Surgery
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Background: The clinical significance of body mass index (BMI) on the surgical outcomes in gastric cancer patients still remains controversial. Methods: The subjects included 427 patients who underwent gastrectomy between January 2001 and December 2005. The patients were principally divided into 3 groups on the basis of BMI: low (< 18.5 kg/m(2)), normal (>= 18.5-<25.0 kg/m(2)) and high (>= 25.0 kg/m(2)). Results: The low-BMI patients had more advanced disease than the other patients. There were no statistically significant differences in the characteristics of the normal- and high-BMI patients. The operation time was longer in the high-BMI group, but there were no differences in terms of lymph node dissection and postoperative complications among these 3 groups. The overall survival and disease-specific survival of the low-BMI group were worse than the other 2 groups. These survival rates of high-BMI group tended to be better than those of the normal BMI group; however, it was not statistically different. A multivariate analysis of these survival rate showed that a low BMI was an independent predictor of a poor prognosis. Conclusions: A low-BMI was an independent factor of poor prognosis for overall and disease-specific survivals after surgery in Japanese patients with gastric cancer. A high-BMI was not a risk factor. (C) 2015 S. Karger AG, Basel
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