• Yaniv Berger, Samantha Aycart, John P Mandeli, Marina Heskel, Umut Sarpel, and Daniel M Labow.
• Department of Surgery, Division of Surgical Oncology, Mount Sinai Medical Center, New York, NY, USA.
• Surg Oncol. 2015 Sep 1; 24 (3): 264-9.

BackgroundMultivisceral resection as part of cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS/HIPEC) may be required in order to achieve optimal debulking. This study aimed to assess perioperative and long-term outcomes of the most extensive CRS/HIPEC procedures.MethodsAll patients who underwent CRS/HIPEC at our institution between March 2007 and July 2014 were retrospectively reviewed. Patients undergoing extreme cytoreduction (n = 50), defined as a resection of ≥5 organs or ≥3 bowel anastomoses, were compared with patients who underwent less extensive procedures (n = 219).ResultsComplete cytoreduction (CC score ≤1) was achieved in 76% of the extreme CRS/HIPEC group, which included patients with colorectal cancer (CRC, n = 17), appendiceal adenocarcinoma (n = 20), gastric cancer (n = 6), and low-grade appendiceal neoplasm (n = 3). When compared with other patients undergoing CRS/HIPEC, the extreme CRS/HIPEC group had higher median PCI score, increased intraoperative blood loss, longer duration of surgery and longer hospital stay (all p values < 0.001). Major 30-day morbidity was significantly higher among the extreme CRS/HIPEC group (34% vs. 17.4%, p = 0.008) and there was also a trend towards higher 90-day mortality (12% vs. 5.1%, p = 0.07). Median disease free survival and overall survival in CRC patients undergoing extreme CRS/HIPEC was poorer (4.1 vs. 14.3 months, p = 0.01 and 10.1 vs. 43.8 months, p < 0.001, respectively). Extreme CRS/HIPEC was found to independently predict decreased overall survival in CRC patients.ConclusionsExtreme multivisceral resection as part of CRS/HIPEC is associated with higher major morbidity and inferior oncologic outcomes; therefore CRS/HIPEC provides the best outcomes in patients with fewer organs involved.Copyright © 2015 Elsevier Ltd. All rights reserved.

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