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  • Title: The incidence of veno-occlusive disease following allogeneic hematopoietic stem cell transplantation has diminished and the outcome improved over the last decade.
    Author: Carreras E, Díaz-Beyá M, Rosiñol L, Martínez C, Fernández-Avilés F, Rovira M.
    Journal: Biol Blood Marrow Transplant; 2011 Nov; 17(11):1713-20. PubMed ID: 21708110.
    Abstract:
    The evolution of the incidence, morbidity, and mortality of veno-occlusive disease (VOD) was analyzed in 845 allogeneic hematopoietic stem cell transplantations (allo-HSCTs) performed over 24 years. A total of 117 patients and 73 patients developed VOD following the Seattle and the Baltimore diagnostic criteria, respectively (cumulative incidence 13.8% and 8.8%). The cumulative incidence was significantly higher in the period 1985 to 1996 than in 1997 to 2008 (11.5% vs 6.5%; P = .01). This decline was because of the low incidence of VOD among reduced-intensity conditioning-HSCT (RIC-HSCT) (2.1%) and the reduction among those receiving myeloablative-HSCT from unrelated donors (32.7% vs 10.5%, P = .001). A total of 35 patients had severe VOD (26 with multiorgan failure [MOF]), and 20 died by VOD (cumulative mortality rate 17.3%, Seattle, or 22.5%, Baltimore). The mortality declined since 1997 (from 22% to 9%; P = .06, Seattle, and from 36% to 14%; P = .04, Baltimore), with the introduction of defibrotide being the only relevant change in the management of patients. This occurred even though the severity of VOD was similar in both periods. Among those with MOF, only 2 of 8 (25%) receiving defibrotide died versus 14 of 18 (78%) receiving other treatments (P = .007). Myeloablative conditioning, previous liver disease, poor performance status, and alternative donors were the variables with higher impact on VOD development. In summary, although VOD remains a dreaded early complication of HSCT, technical and therapeutic progress in recent decades have notably reduced its incidence and improved the outcome.
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