Fatal Case of Perforated Cytomegalovirus Colitis: Case Report and Systematic Review.

We describe a patient with history of heart transplant on maintenance immunosuppression who presented with sigmoid colon perforation from cytomegalovirus (CMV) colitis and performed a systematic review of outcomes after perforated CMV colitis. Cytomegalovirus enterocolitis is uncommon among solid organ transplant patients and can result in small or large bowel perforation. We systematically reviewed articles describing patients with CMV enterocolitis with small or large bowel perforations from PubMed, Embase, and Web of Science from database inception to February 2021. Seventy-seven articles were identified containing 84 patients with perforated CMV enterocolitis. The most prevalent comorbid diagnosis was human immunodeficiency virus (HIV; 27 patients, 32%), and 37 patients (44%) were taking corticosteroids at time of presentation. The ileum was the most common location for a perforation (26 patients, 31%). Odds of survival were lower for patients with small bowel perforation (odds ratio [OR], 0.38; 95% confidence interval [CI], 0.14-0.98) and HIV/acquired immunodeficiency syndrome (AIDS; OR, 0.32; 95% CI, 0.11-0.88). Odds of survival were higher for patients with large bowel perforation (OR, 2.64; 95% CI, 1.03-7.09), radiographically diagnosed perforation (OR, 3.45; 95% CI, 1.12-11.60) and those who received a CMV antiviral (OR, 9.19; 95% CI, 3.26-28.48). Perforated CMV enterocolitis is uncommon even in immunocompromised hosts. Clinicians should maintain a high level of suspicion for CMV-induced bowel perforation in this population because antiviral treatment is associated with increased odds of survival.