# Predictors of 30-Day Unplanned Readmission in Necrotizing Pancreatitis: A 12-Year Experience From a Tertiary Care Center

## TL;DR

This study identifies factors that increase the risk of hospital readmission within 30 days for patients with necrotizing pancreatitis, aiming to improve patient outcomes.

## Contribution

The study provides new insights into specific predictors of unplanned readmission in necrotizing pancreatitis patients over a 12-year period.

## Key findings

- 37.8% of necrotizing pancreatitis patients experienced unplanned readmission within 30 days.
- Abdominal pain and sepsis were the most common reasons for readmission.
- Larger necrosis collection size, prolonged pre-transfer hospital stay, and need for percutaneous feeding tube at discharge were independent predictors of readmission.

## Abstract

Hospital readmission rate is a key hospital metric and represents a substantial burden to patients and the healthcare system. Necrotizing pancreatitis (NP) patients are at high risk of unplanned readmission. The aim of this study was to determine the incidence and predictors of 30-day unplanned readmission after index hospitalization for NP.

Adult NP patients who were managed at a single tertiary referral center between 2009 and 2022 were identified from a prospective database and categorized into 2 groups based on 30-day unplanned readmission after index hospitalization. Patients with no follow-up who died during index admission or within 30 days of discharge were excluded. Baseline data on admission including demographic, clinical, interventional, imaging, and discharge characteristics were compared. Multivariable analysis was completed to identify independent predictors of 30-day readmission.

Among 505 patients with NP (male patients—347 [69%], median age—50 years [inter quartile range 37–63]) 191 (37.8%) had at least 1 unplanned readmission. The most common causes of readmission were abdominal pain (40%) and sepsis (27%). On multivariable analysis, independent predictors for early readmission were necrosis collection size ≥ 6 cm (adjusted odds ratio [aOR] 1.91 [1.11–3.30], P < 0.03), stay at outside hospital ≥ 14 days before transfer to tertiary center (aOR 2.89 [1.27–6.60], P < 0.01), and need for percutaneous feeding tube at the time of discharge (aOR 2.06 [1.01–4.21], P < 0.05).

Readmission after NP is common and associated with greater mortality at 6 months. Expedited transfer to tertiary center for timely intervention, assiduous follow-up of other high-risk patients (large collections and those who need enteral nutrition) could help avoid readmissions and optimize outcomes.