We investigated the effects of early recombinant thrombomodulin (rTM) treatment on long-term prognosis after hematopoietic stem cell transplantation (HSCT). Subjects included 300 patients who underwent allogeneic HSCT (131 in the rTM(+) group and 169 in the rTM(-) group). The control group received heparin or no anti-coagulation therapy. When we examined patients with confirmed complications (day 1-100), the frequencies of acute graft-versus-host disease (aGVHD) and thrombotic microangiopathy (TMA) were significantly lower in the rTM(+) group, while the frequencies of veno-occlusive disease did not show such differences. rTM administration was associated with significant differences in the cumulative incidence of aGVHD (any grade and II-IV grades) and TMA. The cumulative overall survival probability was significantly higher in the rTM(+) group (42.3% versus 26.2%, p = .037). Therefore, some causes of a poor prognosis included aGVHD and TMA. The present findings suggest that rTM plays a preventive role in transplant-related complications, such as aGVHD and TMA, after allogeneic HSCT.
Keywords: Cumulative overall survival probability aGVHD; Hematopoietic stem cell transplantation; Recombinant thrombomodulin; TMA.
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