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  • Title: Influence of overweight on patients with gastric cancer after undergoing curative gastrectomy: an analysis of 689 consecutive cases managed by a single center.
    Author: Ojima T, Iwahashi M, Nakamori M, Nakamura M, Naka T, Ishida K, Ueda K, Katsuda M, Iida T, Tsuji T, Yamaue H.
    Journal: Arch Surg; 2009 Apr; 144(4):351-8; discussion 358. PubMed ID: 19380649.
    Abstract:
    HYPOTHESIS: Overweight (body mass index [calculated as weight in kilograms divided by height in meters squared], > or =25.0) has an effect on surgical results, postoperative complications, and long-term survival in patients with gastric cancer who underwent curative gastrectomy. DESIGN: Retrospective study from January 1, 1992, through December 31, 2002. SETTING: Wakayama Medical University Hospital. PATIENTS: This study included 689 patients who underwent curative gastrectomy (R0). Patients who underwent laparoscopic gastrectomy, gastrectomy with pancreaticoduodenectomy, gastrectomy with another organ resection (liver, colon, or ovary), or gastrectomy with thoracotomy were not included. MAIN OUTCOME MEASURES: Duration of operation, amount of blood loss, incidence of postoperative complications, and survival analysis. RESULTS: The mean (SD) duration of the operation was longer in the overweight group (315 [75] minutes) than in the normal-weight group (277 [85] minutes) (P < .001). The mean (SD) intraoperative blood loss was larger in the overweight group (882 [764] mL) than in the normal-weight group (536 [410] mL) (P < .001). The rates of postoperative complications (anastomotic leakage, pancreatic fistula, and intra-abdominal abscess) were significantly higher in the overweight group (P < .05). Multivariate logistic regression analysis identified that postoperative complications were significantly associated with being overweight (P = .01) and with undergoing pancreatectomy (P = .03). Disease-specific and overall survival did not show any significant difference between the 2 groups. CONCLUSIONS: Being overweight is not a poor risk factor for survival in patients with gastric cancer, although it is independently predictive of postoperative complications.
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