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  • Title: Does obesity affect outcomes of cytoreductive surgery and hyperthermic intraperitoneal chemoperfusion for disseminated mucinous appendiceal neoplasms?
    Author: Polanco PM, Sanchez AI, Ramalingam L, Jones H, Zureikat A, Holtzman M, Ahrendt S, Pingpank J, Zeh HJ, Bartlett DL, Choudry HA.
    Journal: Ann Surg Oncol; 2014 Nov; 21(12):3963-9. PubMed ID: 24916747.
    Abstract:
    BACKGROUND: Obesity has been described as a risk factor for surgical complications and may play a prominent role in the progression, recurrence, and survival rates of various cancers. Our objective was to investigate the impact of being overweight or obese on perioperative and oncologic outcomes after cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemoperfusion (HIPEC) for peritoneal carcinomatosis (PC) from mucinous appendiceal neoplasms (MAN). METHODS: From a prospectively maintained database (2001-2010) of CRS/HIPEC for PC from MAN, we evaluated the body mass index (BMI) of patients, categorizing them into normal weight (NW < 25 kg/m(2)), overweight (OW = 25 to 29.9 kg/m(2)), and obese (OB ≥ 30 kg/m(2)). We compared the perioperative and oncologic outcomes among groups. RESULTS: Of the 282 patients in the database, 234 had BMI data available, and 81, 79, and 74 patients were categorized as NW, OW, and OB, respectively. Although there was a trend toward increased risk of overall complications, wound infections, deep vein thrombosis, respiratory and renal complications, and anastomotic leaks in the OW and OB groups, these differences only achieved statistical significance for renal (p = 0.03) and pulmonary (p = 0.02) complications in the OW and OB groups, respectively. The 5-year survival rate for NW, OW, and OB patients was 63.9, 48, and 54.4 %, respectively (p = 0.63). The median time to progression was 21.1 (NW), 21.7 (OW), and 23.9 (OB) months (p = 0.83). CONCLUSIONS: OW and OB patients may have an increased risk of renal and pulmonary complications, respectively. Obesity has no major impact on perioperative mortality and long-term oncologic outcomes in patients undergoing CRS/HIPEC for MAN.
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