Antiviral therapy in cytomegalovirus-positive ulcerative colitis: A systematic review and meta-analysis

Uri Kopylov*, Noa Eliakim-Raz, Andrew Szilagy, Ernest Seidman, Shomron Ben-Horin, Lior Katz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


AIM: to evaluate the impact of antiviral treatment on cytomegalovirus (CMV)-positive ulcerative colitis patients. METHODS: We performed a systematic review and meta-analysis (MA) of comparative cohort and casecontrol studies published between January 1966 and March 2013. Studies focusing on colectomy series and studies including only less than 3 patients in the treated or non-treated arm were excluded. The primary outcome was colectomy within 30 d of diagnosis. Secondary outcomes included colectomy during the follow-up period Subgroup analyses by method of detection of CMV, study design, risk of bias and country of origin were performed. Quality of studies was evaluated according to modified New-Castle Ottawa Scale. RESULTS: After full-text review, nine studies with a total of 176 patients were included in our MA. All the included studies were of low to moderate quality. Patients who have received antiviral treatment had a higher risk of 30-d colectomy (OR = 2.40; 95%CI: 1.05-5.50; I 2 = 37.2%). A subgroup analysis including only patients in whom CMV diagnosis was based did not demonstrate a significant difference between the groups (OR = 3.41; 95%CI: 0.39-29.83; I 2 = 56.9%). Analysis of long-term colectomy rates was possible for 6 studies including 110 patients. No statistically significant difference was found between the treated and untreated groups (OR = 1.71; 95%CI: 0.71-4.13; 6 studies, I 2 = 0%). Analysis of mortality rate was not possible due to a very limited number of cases. Stratification of the outcomes by disease severity was not possible. CONCLUSION: No positive association between antiviral treatment and a favorable outcome was demonstrated. These findings should be interpreted cautiously due to primary studies' quality and potential biases.

Original languageEnglish
Pages (from-to)2695-2703
Number of pages9
JournalWorld Journal of Gastroenterology
Issue number10
StatePublished - 14 Mar 2014


  • Antiviral treatment
  • Colectomy
  • Cytomegalovirus
  • Foscarnet
  • Gancyclovir
  • Ulcerative colitis


Dive into the research topics of 'Antiviral therapy in cytomegalovirus-positive ulcerative colitis: A systematic review and meta-analysis'. Together they form a unique fingerprint.

Cite this