Abstract
OBJECTIVES: Opioid administration in acute pancreatitis (AP) exacerbates its severity, prompting concerns regarding the increased requirement for intensive care and its potential impact on patient survival. We aimed to elucidate the influence of analgesic patterns on mortality among patients with AP hospitalized in the ICU. METHODS: We included 784 patients (198 receiving opioid monotherapy and 586 receiving opioid polytherapy) from the Medical Information Mart for Intensive Care database. The primary outcome was in-hospital mortality. Propensity score matching was used to account for baseline differences. We used Kaplan-Meier survival curves and multivariate regression models to indicate survival discrepancies and potential associations. RESULTS: Polytherapy group exhibited prolonged hospital survival (79.8 vs. 57.3 days, P < 0.001); polytherapy was associated with decreasing in-hospital mortality adjusted for confounders (HR = 0.49, 95% CI: 0.26-0.92; P = 0.027). Stratification analysis indicated that patients receiving adjunctive acetaminophen had prolonged hospital survival (opioid vs. opioid + acetaminophen, P < 0.001; opioid vs. opioid + NSAIDs + acetaminophen, P = 0.026). Opioid polytherapy benefited patients with APACHE III scores >83 and those with mean oral morphine equivalent >60 mg/day (HR = 0.17, 95% CI: 0.1-0.3, P < 0.001 and HR = 0.32, 95% CI: 0.2-0.52, P < 0.001, respectively). CONCLUSION: Our findings suggest that an opioid-based analgesic regimen offers a survival advantage for patients with AP, particularly those in critical condition or with concerns about opioid use. This approach provides a viable clinical strategy for pain management. Further randomized clinical trials are warranted to validate these results.