Systemic lupus erythematosus-related acute pancreatitis

Introduction Systemic lupus erythematosus (SLE) is a complex autoimmune pathology that can involve any organ. Lupus-related acute pancreatitis (AP) is, together with lupus mesenteric vasculitis, an important cause of SLE-induced acute abdominal pain. Methods A literature search was conducted using the terms Pancreatitis and Lupus Erythematosus, Systemic on PubMed/Medline and Web of Science from January 2007 to January 2020. Clinical characteristics, diagnostic approach, and treatment principles in SLE-related AP are presented in this review. Results Mainly retrospective reports were identified. The reported incidence of SLE-associated AP ranges from 0.9 to more than 5% of patients. A total of 264 SLE patients were found in the selected research, with a net female predominance (sex ratio 9:1) and mean age of 31.4 years. Abdominal pain was virtually present in all cases. AP occurrence was more frequent in SLE patients with short disease duration, high activity scores, and multiorgan involvement. The AP definition was based on currently available guidelines and after exclusion of any other known causes (including iatrogenic, i.e. drugs), a diagnosis of idiopathic SLE-related AP might be sustained. Management is difficult, as there is no standardized therapeutic approach. Of note, glucocorticoid use remains still controversial as, especially for high doses, subsequent pancreatic injury may occur. Monitoring serum lipase levels after high dose steroids might be considered. One study reported beneficial prognostic effect of plasma exchange. Moreover, AP in SLE might raise awareness about macrophage activation syndrome association. Mortality up to one third of AP cases in SLE was reported. Conclusion The SLE-related AP is a rare, but severe, life-threatening complication. Corticosteroids must be used with caution. Plasma exchange could be considered in selected cases.

Automated summary

SLE-related acute pancreatitis is a rare but severe complication, predominantly affecting females with an average age of around 30 years. It is more frequent in patients with short disease duration, high activity scores, and multiorgan involvement. There is no standardized therapeutic approach, and caution should be exercised when using corticosteroids, while plasma exchange may be beneficial in selected cases.