Abstract

Pancreatic fungal infection (PFI) in patients with necrotizing pancreatitis can lead to significant morbidity and mortality. The incidence of PFI has increased during the past decade. Our study aimed to provide contemporary observations on the clinical characteristics and outcomes of PFI in comparison to pancreatic bacterial infection and necrotizing pancreatitis without infection. We conducted a retrospective study of patients with necrotizing pancreatitis (acute necrotic collection or walled-off necrosis), who underwent pancreatic intervention (necrosectomy and/or drainage) and had tissue/fluid culture between 2005 and 2021. We excluded patients with pancreatic procedures prior to hospitalization. Multivariable logistic and Cox regression models were fitted for in-hospital and 1-year survival outcomes. A total of 225 patients with necrotizing pancreatitis were included. Pancreatic fluid and/or tissue was obtained from endoscopic necrosectomy and/or drainage (76.0%), CT-guided percutaneous aspiration (20.9%), or surgical necrosectomy (3.1%). Nearly half of the patients had PFI with or without concomitant bacterial infection (48.0%), while the remaining patients had either bacterial infection alone (31.1%) or no infection (20.9%). In multivariable analysis to assess the risk of PFI or bacterial infection alone, only previous pancreatitis was associated with an increased odds of PFI vs. no infection (OR 4.07, 95% CI 1.13-14.69, p=.032). Multivariable regression analyses revealed no significant differences in in-hospital outcomes or one-year survival between the 3 groups. Pancreatic fungal infection occurred in nearly half of necrotizing pancreatitis. Contrary to many of the previous reports, there was no significant difference in important clinical outcomes between the PFI group and each of the other two groups.

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