COVID-19 and acute pancreatitis clinical outcomes among hospitalized patients in the United States: A propensity matched analysis of national inpatient sample

Background: Pancreatitis is one of the leading causes of gastrointestinal-related hospitalization, with significant morbidity and mortality. SARS-COV-2 virus can access the pancreas via angiotensin-converting enzymes and can cause direct and indirect injury to the pancreatic parenchyma. The objective of this study to understand clinical outcomes of hospitalized patients with COVID-19 with and without pancreatitis utilizing National Inpatient Sample database.

Methods: We utilized the United States National Inpatient Sample database to study clinical outcomes in hospitalized patients with COVID-19 infection (a total of 1,659,040 hospitalized patients with 10,075 (0.6 %) with pancreatitis) between January 1 to December 31, 2020, along with propensity matching.

Results: While after propensity matching, we did not find a statistical difference in in-hospital mortality amongst COVID-19 patients with pancreatitis compared to COVID-19 patients without pancreatitis (13.2 % vs 10.3 %, adjusted odds ratio: 0.7 [95 % CI 0.5-1], p = 0.11). Patients with COVID-19 and pancreatitis had more episodes of septic shock, higher incidence of acute kidney injury and acute kidney injury requiring hemodialysis. We also found an increased prevalence of NASH cirrhosis, alcohol liver cirrhosis, and a lesser incidence of pulmonary embolisms in the COVID-19 with pancreatitis cohort.

Conclusion: Worse in-hospital outcomes, including increased incidence of septic shock, acute kidney injury, and acute kidney injury requiring hemodialysis in hospitalized patients with COVID-19 infection and pancreatitis, emphasize the need for more research to understand the effect of COVID-19 disease in hospitalized patients with pancreatitis and in the role of vaccination to improve long term outcome in this patient population.