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자료유형
학술저널
저자정보
저널정보
대한장연구학회 Intestinal research Intestinal research Vol.13 No.1
발행연도
2015.1
수록면
50 - 59 (10page)

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Background/Aims: Patients with ulcerative colitis (UC) are at high risk for cytomegalovirus (CMV) reactivation. The usefulnessof the CMV antigenemia assay in active UC patients has rarely been studied. We assessed whether the assay detects CMVcolitis and predicts clinical outcomes in patients with UC. Methods: We retrospectively reviewed the medical records of patientshospitalized for moderate-to-severe UC from 2003 to 2012. Positive CMV antigenemia was defined as ≥1 pp65-positivecell per 2×105 polymorphonuclear neutrophils. CMV colitis was defined as the presence of inclusion bodies and/or positive immunohistochemistryin the colonic mucosa. The primary outcome was steroid refractoriness, defined as the absence of clinicalimprovement after intravenous high-dose steroid administration. Results: A total of 43 patients were enrolled. CMV antigenemiawas detected in 12 (27.9%) patients. Positive CMV antigenemia was significantly associated with CMV colitis (P =0.001). The sensitivity and specificity of positive CMV antigenemia for diagnosing CMV colitis were 66.7% and 87.1%, respectively. Steroid refractoriness was found in 11 of 12 (91.7%) and 12 of 31 (38.7%) patients with positive and negative CMV antigenemia,respectively (P =0.002). The independent predictors for steroid refractoriness were positive CMV antigenemia (adjusted oddsratio [OR], 7.73; 95% confidence interval [CI], 1.22−49.19; P =0.030) and a shorter duration from the diagnosis of UC (adjustedOR, 0.99; 95% CI, 0.98−0.99; P =0.025). Conclusions: The CMV antigenemia assay shows low sensitivity but high specificity fordetecting CMV colitis and may predict steroid-refractory UC. Early rescue therapy might be considered in UC patients positivefor CMV antigenemia.

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