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Temporal trends in transfusion-transmitted cytomegalovirus infection among cytomegalovirus-seronegative HSCT recipients

Year: 2026
Type: article
Study design: Observational Study
Abstract: BACKGROUND: The incidence of transfusion-transmitted cytomegalovirus (TT-CMV) after hematopoietic stem cell transplantation (HSCT) in the era of universal leukoreduction remains unclear. This study evaluated temporal changes in TT-CMV and clinically significant CMV infection (csCMVi) in Japan. METHODS: Data from 5,016 CMV-seronegative HSCT recipients registered between 1999 and 2022 were retrospectively analyzed. TT-CMV was defined as CMV antigenemia and/or CMV disease, and csCMVi as the initiation of pre-emptive therapy or CMV disease. RESULTS: Random donor (RD) blood products were independently associated with TT-CMV (odds ratio 2.35, 95% confidence interval 1.75-3.15, P < 0.001) and csCMVi (subdistribution hazard ratio 2.22, 95% CI 1.67-2.96, P < 0.001). Among allogeneic HSCT recipients receiving RD blood products, TT-CMV decreased from 25.7% in 2007-2020 to 12.7% in 2021-2022, while the 100-day cumulative incidence of csCMVi decreased from 24.7% to 8.3% over the same periods. During 2021-2022, differences between RD and CMV-seronegative donor blood products were not statistically significant. CMV disease incidence did not differ between groups. CONCLUSIONS: TT-CMV and csCMVi decreased substantially over time. Although RD blood products remained associated with higher overall risk, the additional benefit of CMV-seronegative blood products may be limited under contemporary transfusion practices.
Language: English
Subfield: Epidemiology
Field: Medicine
Open Access status: hybrid
Estimated APC paid: $4,390
OpenAlex ID: W7222316532
FWCI:
Cites: 20
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