Factors Associated with 60-Day Readmission Following Cytoreduction and Hyperthermic Intraperitoneal Chemotherapy.

INTRODUCTION: Readmission rates following surgery are subject to scrutiny in efforts to control health care costs. This study was designed to define the 60-day readmission rate following cytoreduction and HIPEC at a high-volume center and to identify factors associated with readmission.

METHODS: Patients who underwent complete cytoreduction and HIPEC at a single institution from August 2007 through June 2014 were identified from a prospectively maintained database. Multiple preoperative and operative factors were analyzed for their ability to predict 60-day readmission following surgery.

RESULTS: A total of 250 patients were identified. Forty patients (17%) experienced readmission within 60 days of surgery. The most common reasons for readmission were ileus/dehydration (12, 31%), deep space infection (8, 21%), and DVT/PE (6, 15%). Initial postoperative length of stay was longer for patients readmitted within 60 days (median 12 vs. 9 days, p = 0.013). Of categorical variables analyzed, including gender, histology, HIPEC agent, intraoperative transfusion, and individual procedures performed during cytoreduction, adjuvant systemic therapy, and postoperative morbidity, only Charlson comorbidity index CCI (odds ratio (OR) = 3.80 [1.68-8.60]) and stoma creation (OR = 6.04 [1.56-12.14]) were associated with 60-day readmission.

CONCLUSIONS: Few measurable variables are associated with readmission following cytoreduction and HIPEC. Patients with high CCI and those with stomas created at the time of CRS/HIPEC may be at increased risk of readmission within 60 days. Earlier or more frequent follow-up for high-risk patients should be considered as a strategy to reduce readmissions.