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Factors affecting dietary progression post cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy
Allysha Stibbard1, Morgan Brown2, Rachel Pons2
1St George Hospital, Department of Nutrition and Dietetics, Level 2, Pritchard Wing, Kogarah, NSW, 2217, Australia; School of Medicine, Smart Foods Centre, Illawarra Health and Medical Research Institute, University of Wollongong, Building 32, Northfields Ave, Keiraville, NSW, 2500, Australia.
Background & Aims:
Peritoneal carcinomatosis (PC) is treated by cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC). Timely postoperative nutrition is required to reduce the risk of malnutrition and other complications; thus the present study aims to evaluate factors that may impact dietary progression following CRS/HIPEC treatment.
Methods:
Forty-two patients undergoing CRS/HIPEC at a tertiary hospital were audited between April 2019 and August 2020. Patients were classified into two groups: fast dietary progression (FDP) and slow dietary progression (SDP), based on commencement of a full fluid diet (FF) within 7 days or after 7 days postoperatively. Between-group differences in patient characteristics, surgical factors and postoperative complications were evaluated statistically (significant at p < 0.05).
Results:
FDP and SDP groups comprised of 22 (52%) and 20 (40%) patients, respectively. A FF diet was established on a median of 7 (4.25-9.75) days, but not before day 2. Nineteen of the 31 (61.3%) patients receiving parenteral nutrition (PN) were in the SDP group (p = 0.009). The SDP group had longer surgery duration (p = 0.05), more gastrointestinal anastomoses (GIAs) (p = 0.02), more enterotomies (p = 0.008), higher rates of prolonged ileus (p = 0.007), longer duration to first bowel motion (p = 0.002), more returns to theatre (p = 0.03), higher Clavien Dindo scores ≥ IIIb (p = 0.01) and longer postoperative length-of-stay (p = 0.001), compared to the FDP group.
Conclusions:
Postoperative complications were associated with SDP in PC patients undergoing CRS/HIPEC. Strategies that aim to limit SDP through timely commencement of nutrition, including PN, are important to improve postoperative outcomes in this patient group.
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