94.02 Discharge Disposition Following HPB Surgery: Impact on Readmission Risk and Site of Readmission

A. Z. Paredes1, R. Mehta1, E. W. Beal1, F. Bagante2, A. Diaz1, K. Merath1, M. E. Dillhoff1, J. M. Cloyd1, T. M. Pawlik1  1Ohio State University,Department Of Surgery, Division Of Surgical Oncology,Columbus, OH, USA 2University of Verona,Surgery,Verona, Italy

Introduction: Hepatopancreatobiliary (HPB) surgeries are complex procedures that may require discharge to a facility other than home.  As surgical patients age, the number of patients requiring post-discharge care may increase. We sought to identify factors associated with discharge disposition, as well as assess readmission risk relative to discharge services.

Methods: The National Readmissions Database (NRD) was used to identify patients who underwent HPB surgery between 2010-2015. Patients were stratified based on discharge destination: home, SNF/intermediate care, home with home health care (HHC). Factors associated with discharge disposition were assessed and 30-day and 90-day readmission were compared.

Results: Among 47,955 patients who underwent HPB surgery, mean age was 58 years (IQR, 50-69), 53.4% were female and 48.9% had >3 comorbidities. Surgery consisted of hepatectomy (N=26,135, 54.5%), pancreatectomy (N=13,180, 27.5%) or biliary procedure (N=8,640, 18.0%).  At the time of discharge, the majority of patients were discharged to home (N=34,046, 71.0%), while a smaller proportion were discharged to SNF/intermediate care (N=3,385, 7.1%) or HHC (N=10,524, 21.9%).  On multivariable analysis, older age (OR 1.07, 95%CI 1.07-1.08), >3 comorbidities (OR 2.09, 95%CI 1.46-2.99), and a high preoperative mortality risk score (OR 3.28, 95%CI 2.32-4.62) were associated with an increased risk of discharge to SNF/intermediate care (all p<0.05). Similarly, a high preoperative mortality risk score (OR 1.43, 95%CI 1.23-1.67), and loss of function (OR 3.21, 95%CI 2.48-4.16) were associated with discharge to HHC.  While 13.7% and 15.8% of patients were readmitted following discharge to home or HCC, respectively, the incidence of 30-day readmission was 23.5% following discharge to SNF/intermediate care (p<0.001). In contrast, by 90 days the incidence of readmission was similar among patients discharged to SNF/intermediate care (34.2%) or HHC (30.5%), yet lower for patients who had been discharged home (19.1%) (p<0.001). Of note, patients discharged to SNF/intermediate care (23.1%) were at a higher odds of being readmitted to a non-index hospital (home, 13.7%, HHC, 15.8%)(p<0.001).

Conclusion: Following HPB surgery, 1 in 3 patients were either discharged with HHC or to SNF/intermediate care. Discharge with HHC or to SNF/intermediate care was associated with increased risk of both 30- and 90-day readmission, as well as readmission to a non-index hospital.