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  • Title: Impact of cytomegalovirus gastrointestinal disease on the clinical outcomes in patients with gastrointestinal graft-versus-host disease in the era of preemptive therapy.
    Author: Cho BS, Yahng SA, Kim JH, Yoon JH, Shin SH, Lee SE, Choi SM, Lee DG, Eom KS, Park G, Kim YJ, Kim HJ, Lee S, Min CK, Cho SG, Kim DW, Lee JW, Min WS, Park CW.
    Journal: Ann Hematol; 2013 Apr; 92(4):497-504. PubMed ID: 23180439.
    Abstract:
    Cytomegalovirus gastrointestinal (CMV-GI) disease in GI graft-versus-host disease (GI-GVHD) has not been properly evaluated in the era of preemptive therapy for CMV infection. We investigated 103 patients with GI-GVHD who underwent endoscopic biopsies with immunohistochemical staining for CMV. All recipients and/or donors were seropositive for CMV and monitored with a strategy of preemptive therapy based on real-time quantitative polymerase chain reaction. Twenty-six patients (25 %) developed CMV-GI disease, especially in HLA-mismatched transplants (P = 0.023) and with initial gut involvement of GVHD (P = 0.009). The CMV-GI diseases were diagnosed at follow-up endoscopies (n = 10, 39 %), comprising 19 % of 52 patients who underwent follow-up endoscopies, as well as initial endoscopies (n = 16, 61 %), comprising 16 % of all GI-GVHD patients. In seven cases, either at initial (n = 5) or follow-up endoscopies (n = 2), CMV-GI disease was diagnosed in the absence of histopathologic evidence for GI-GVHD. Notably, only 11 patients (42 %) had prior CMV DNAemia before the diagnosis of CMV-GI disease, while 12 (46 %) and three (12 %) had concurrent and no CMV DNAemia, respectively. Sixty-five percent of CMV-GI disease was resolved by additional antiviral therapies, but CMV-GI disease (P = 0.032) as well as severity of GVHD (P = 0.001) negatively affected GVHD-specific survival. In conclusion, our data demonstrate that CMV-GI disease was a cause of initial or persistent GI manifestations after the initiation of therapy in a considerable proportion of GI-GVHD. These suggest the necessity of novel strategies to reduce CMV-GI disease as well as an effort to confirm CMV with repeated endoscopies.
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