305. Cholecystitis as a Possible Immunologic Consequence of COVID-19; Case Series from a Large Healthcare System
Abstract Background Gastrointestinal manifestations are commonly seen in COVID-19 disease with up to 50% of patients reporting nausea or diarrhea. Cholecystitis has been described in rare cases related to COVID-19, possibly in consequence of immune activation, but biliary disease from SARS-CoV-2 infection is not well described. We examined a case series of patients with both COVID-19 and cholecystitis at our institution. Methods We performed a retrospective chart review of all patients with a diagnosis of cholecystitis within 3 months of SARS-CoV-2 infection; looking at clinical, laboratory, and radiographic characteristics of this population. Results 30 individuals were identified with a diagnosis of cholecystitis within 3 months of diagnosis of SARS-CoV-2 infection. Most patients presenting with cholecystitis were female and obese (see Table 1). 14 individuals were diagnosed with SARS-CoV-2 infection during the same presentation as their cholecystitis diagnosis, usually as part of pre-operative screening. Of 16 individuals diagnosed with SARS-CoV-2 prior to their cholecystitis presentation, a mean of 24 and 17 days elapsed between SARS-CoV-2 infection and cholecystitis symptom onset and radiographic diagnosis, respectively (see Figure 1). Most of these patients had mild respiratory disease, with only 9 developing an oxygen requirement, and only 3 requiring mechanical ventilation. While 17 patients were treated surgically for their cholecystitis, this did not appear to impact symptom resolution. Table 1. Patient Characteristics Figure 1. Time between COVID-19 and Cholecystitis Conclusion Cholecystitis may be an uncommon complication of COVID-19 disease. Cholecystitis may manifest most often 2-4 weeks following SARS-CoV-2 infection. This timing is similar to that in Multisystem Inflammatory Syndrome following SARS-CoV-2 infection and given similarities in timing to we hypothesize that cholecystitis in our patients could be driven by immune activation. Disclosures Christopher Polk, MD, Atea (Research Grant or Support)Gilead (Advisor or Review Panel member, Research Grant or Support)Humanigen (Research Grant or Support)Regeneron (Research Grant or Support) Mindy Sampson, MD, Regeneron (Grant/Research Support) Catherine Passaretti, MD, Nothing to disclose