Etiologies and Treatment Burden in Adult Patients with Pure Red Cell Aplasia: A Single-Center Experience and Review of Literature. (16th March 2020)

• Record Type: Journal Article
• Authors: Niparuck, Pimjai; Kanoksil, Wasana; Wacharapornin, Pathawut; Chantrathammachart, Pichika; Boongird, Sarinya
• Other Names: Canatan Duran Academic Editor.
• Is Part Of: Anemia. Volume 2020(2020)
• Publication Date: 2020-03-16
• Subjects: Anemia -- Periodicals; 616.152005
• DOI: 10.1155/2020/4812759
• Languages: English
• ISSNs: 2090-1267

Abstract

Abstract : Background . Pure red cell aplasia (PRCA) is less common blood disorder; the causes and the treatments of PRCA are varied. Methods . We conducted a retrospective study during January 2010–December 2017, to explore the etiologies and to evaluate the response and treatment burden in adult patients with PRCA. Results . Of 32 PRCA patients, median age was 57 years (18–90 years). Median hemoglobin level and reticulocyte count at the time of diagnosis were 5.6 g/dL (3.3–7.3 g/dL) and 0.3% (0.1–0.7%), respectively. Median time to hematologic recovery was 12 weeks (3–72 weeks), and median number of red blood cell transfusion (RBC) was 20 units (4–100 units). Causes of PRCA were erythropoiesis-stimulating agent (ESA) (47%), parvovirus B19 infection (19%), thymoma (13%), zidovudine (6%), primary autoimmune PRCA (6%), Kaposi's sarcoma (3%), systemic lupus erythematosus (3%), and ABO-mismatched stem cell transplantation (3%). Only 9 out of 24 treated patients achieved hematologic response within 8 weeks of treatment. Intravenous immunoglobulin therapy provided 100% response rate in patients with parvovirus B19-associated PRCA and primary autoimmune PRCA. Low response rate was found in patients receiving immunosuppressants and chemotherapy for the treatment of ESA and thymoma-associated PRCA, respectively. Conclusions . Treatment outcome of PRCA depended upon the causes and the types of treatment, and the burden of RBC transfusion was very high in patients with ESA and thymoma-associated PRCA.