COVID-19 infection and large intestinal perforation: A case series.

Introduction: COVID-19 is a viral illness characterized primarily by respiratory symptoms. However, patients with COVID-19 infection may also present with gastrointestinal symptoms. Subsequent complications can be associated with high morbidity and mortality.

Methods: This is a retrospective observational study of three COVID-19 positive patients who developed large intestinal perforations and an analysis of their clinical characteristics, diagnosis, surgical treatment and outcomes. Three patients aged 45, 51 and 82 years old presented to our institution between November 2021 and March 2022 and were diagnosed with COVID-19 pneumonia requiring admission to the intensive care unit (ICU). All three patients received steroids and underwent surgery during their admission. None of our patients had prior history of bowel perforation or risks factors justifying their presentation.

Presentation Of Cases: Our first patient was found to have an ascending colon perforation and underwent right colon resection and end ileostomy. Our second patient was found to have a cecal perforation and underwent ileocecectomy with end ileostomy and mucus fistula creation. Our third patient was found to have a large cecal perforation and underwent right hemicolectomy and was left in discontinuity during the index operation.

Discussion: GI perforation is a less common but serious extra-pulmonary complication of COVID-19. The cases in the present study involve ascending colon perforations in the setting of active COVID-19 infection that occurred within two to five weeks after initial COVID-19 diagnosis. Given viral replication in GI cells, the local inflammatory effect of viral infection in the GI may play a role in bowel perforation. Providers should additionally be aware of the risk of perforation with steroids and immunomodulators. Immunosuppressive effects of these therapies may mask the classical signs of abdominal sepsis and lead to possible missed diagnoses.

Conclusion: Gastrointestinal perforation is a rare but serious complication of COVID-19 infection. A high degree of clinical suspicion is necessary for timely diagnosis and management.