ACHIEVEMENTS AND CHALLENGES IN THE DIAGNOSIS AND TREATMENT OF APLASTIC ANEMIA

Hue Hoang Thi1, , Vinh Pham Quang2, Phuong Vu Minh1, Linh Duong Thi Thuy
1 Trường Đại học Y Hà Nội
2 Bach Mai Hospital

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Abstract

Idiopathic aplastic anemia is a condition characterized by decreased bone marrow production due to an immunological mechanism involving activated autoreactive T lymphocytes attacking hematopoietic stem cells. The definitive diagnosis of idiopathic aplastic anemia (IAA) lacks a gold standard, thus presenting significant challenges in clinical diagnosis. The two primary treatment modalities comprise allogeneic stem cell transplantation and immunosuppressive therapy. The selection of treatment regimen depends on factors such as age, comorbidities, and the availability of stem cell sources. Treatment outcomes for IAA have improved through immunosuppressive therapy utilizing a three-drug regimen consisting of hATG (horse anti-thymocyte globulin), CSA (Cyclosporin A), and eltrombopag (revolade). However, a proportion of patients still experience nonresponse, relapse, or clonal evolution. Allogeneic hematopoietic stem cell transplantation from HLA (human leukocyte antigen)-matched related donors remains the most effective treatment modality. Nevertheless, only approximately 25% of patients have the possibility of finding a suitable stem cell donor. Alternative transplantation methods, such as haploidentical transplantation and umbilical cord blood transplantation, coupled with advancements in conditioning regimens and graft-versushost disease prophylaxis, are yielding promising results for patients with aplastic anemia.

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References

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