The Impact of Discharge Timing on Readmission Following Hepatopancreatobiliary Surgery: a Nationwide Readmission Database Analysis.

Objective: Decreasing hospital length-of-stay (LOS) may be an effective strategy to reduce costs while also improving outcomes through earlier discharge to the non-hospital setting. The objective of the current study was to define the impact of discharge timing on readmission, mortality, and charges following hepatopancreatobiliary (HPB) surgery.
Methods: The Nationwide Readmissions Database (NRD) was used to identify patients undergoing HPB procedures between 2010 and 2014. Length of stay (LOS) was categorized as early discharge (4-5 days), routine discharge (6-9 days), and late discharge (10-14 days). Univariable and multivariable analyses were utilized to identify factors associated with 90-day readmission.
Results: A total of 28,114 patients underwent HPB procedures. Overall median LOS was 7 days (IQR 5-11); 10,438 (37.1%) patients had an early discharge, while 13,665 (48.6%) and 4011 (14.3%) patients had a routine or late discharge. The probability of early discharge increased over time (referent 2010: 2011-4% (OR 1.04, 95% CI 0.96-1.15) vs. 2012-10% (OR 1.10, 95% CI 1.01-1.20) vs. 2013-21% (OR 1.21, 95% CI 1.11-1.32) vs. 2014-32% (OR 1.32, 95% CI 1.21-1.44)) (p < 0.001). Early discharge was associated with insurance status, diagnosis (benign vs. malignant disease), general health, and overall hospital volume (all p < 0.05). Among patients who had an early discharge, 30- and 90-day readmission was 11.5 and 17.4%, respectively. In contrast, 30- and 90-day readmission was 16.9 and 24.7%, respectively, among patients who had a routine discharge group (p < 0.001). Among patients readmitted within 90 days, in-hospital mortality was similar among patients who had early (n = 43, 2.4%) versus routine discharge (n = 65, 1.9%). Median charges were lower among patients who had an early versus routine versus late discharge ($54,476 [IQR 40,053-79,100] vs. $75,192 [IQR 53,296-113,123] vs. $115,061 [IQR 79,162-171,077], respectively) (p < 0.001).
Conclusions: Early discharge after HPB surgery was not associated with increased 30- or 90-day readmission. Overall 90-day in-hospital mortality following a readmission was comparable among patients with an early, routine, and late discharge, while median charges were lower in the early discharge group.