The effect of intraoperative fluid administration on outcomes of patients undergoing cytoreductive surgery with hyperthermic intraperitoneal chemotherapy

Raphael Shamavonian, Rohan McLachlan, Oliver M. Fisher, Sarah J. Valle, Nayef A. Alzahrani, Winston Liauw, David L. Morris


Background: Determine the effect of intraoperative fluids (IOFs) administered during cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) on postoperative patient outcomes.
Methods: Retrospective cohort study of patients that underwent CRS/HIPEC from February 2010 to June 2017.
Results: A total of 335 patients formed the cohort study. Patients who received higher IOFs had longer hospital length of stay (LOS) (34 vs. 22.5 days; P<0.001), extended intensive care unit (ICU) admission (5.3 vs. 3.2 days; P<0.001) and a 12% increase in grade 3/4 complications (P<0.001). Greater amounts of blood product transfusion were associated with longer hospital LOS (33.7 vs. 23 days; P<0.001), and ICU admission (5 vs. 3.4 days; P<0.001) and 12% increase in grade 3/4 complications (P<0.001). When corrected for weight and peritoneal cancer index (PCI), increased transfusion of blood products still resulted in longer hospital LOS (31.2 vs. 25.2 days; P=0.04) and longer ICU admission (4.7 vs. 3.6 days; P=0.03). On multivariable analysis, less blood product transfusions demonstrated a decreased LOS in hospital by 4.8 days (P=0.01) and fewer grade 3/4 complications (OR 0.59; 95% CI, 0.35–0.99; P=0.05).
Conclusions: Greater IOF administration is associated with an increase in postoperative morbidity, including hospital LOS, ICU admission and grade 3/4 complications, in patients undergoing CRS/HIPEC.