Peripheral blood cell abnormalities in hospitalized patients with systemic lupus erythematosus at Bach Mai Hospital

Bui Van Dan, Phuong Nguyen Thu, Trinh Cao Thi

Main Article Content

Abstract

This cross-sectional descriptive study included 50 hospitalized patients with systemic lupus erythematosus (SLE) at the Center for Allergy and Clinical Immunology, Bach Mai Hospital. The study aimed to describe peripheral blood cell abnormalities and explore their associations with selected clinical manifestations and disease activity. All patients fulfilled the 2019 EULAR/ACR classification criteria for SLE and had at least one complete blood count abnormality. Female patients accounted for 90% of the cohort, and renal-urinary involvement was the most frequent clinical manifestation (82%). Most patients had high or very high disease activity according to SLEDAI-2K. In this selected inpatient cohort, anemia was the most common abnormality (92%), mainly mild to moderate, with normocytic normochromic anemia accounting for 67.4%. Lymphopenia and thrombocytopenia were observed in 38% and 16% of patients, respectively. Renal-urinary involvement was associated with lower red blood cell counts and hemoglobin levels, while neuropsychiatric manifestations were associated with lower platelet counts. Patients with high or very high disease activity had lower red blood cell counts, hemoglobin levels, and platelet counts than those with mild or moderate activity. Complete blood count may provide supportive information for assessing and monitoring hospitalized patients with SLE.

Article Details

References

1. Kaul A, Gordon C, Crow MK, et al. Systemic lupus erythematosus. Nat Rev Dis Primer. 2016;2(1):16039.
2. Rees F, Doherty M, Grainge MJ, Lanyon P, Zhang W. The worldwide incidence and prevalence of systemic lupus erythematosus: a systematic review of epidemiological studies. Rheumatology. 2017;56(11):1945-1961.
3. Hochberg MC. Updating the American college of rheumatology revised criteria for the classification of systemic lupus erythematosus. Arthritis Rheum. 1997;40(9):1725-1725.
4. Petri M, Orbai A, Alarcón GS, et al. Derivation and validation of the Systemic Lupus International Collaborating Clinics classification criteria for systemic lupus erythematosus. Arthritis Rheum. 2012;64(8):2677-2686.
5. Aringer M, Costenbader K, Daikh D, et al. 2019 European League Against Rheumatism/American College of Rheumatology Classification Criteria for Systemic Lupus Erythematosus. Arthritis Rheumatol. 2019;71(9):1400-1412.
6. Velo-García A, Castro SG, Isenberg DA. The diagnosis and management of the haematologic manifestations of lupus. J Autoimmun. 2016;74:139-160.
7. Adwan MH, Qasem U, Mustafa KN. In-hospital mortality in patients with systemic lupus erythematosus: a study from Jordan 2002–2017. Rheumatol Int. 2020;40(5):711-717.
8. Vương Tuyết Mai, Trịnh Thị Thúy, Đinh Thị Kim Dung. Khảo sát một số chỉ số huyết học ở bệnh nhân viêm thận lupus điều trị nội trú. Tạp chí Y học TP Hồ Chí Minh. 2016;20(1):413-419.
9. Santamaría Alza Y, Sánchez-Bautista J, Alarcón-Gómez ZM, Coy-Quiroga A. Anemia in Colombian patients with systemic lupus erythematosus. CES Med. 2023;37(2):25-33.
10. Al Sheef A, Khalid L, Almutairi R, et al. Hematologic Manifestations in Systemic Lupus Erythematosus:A Systematic Review of Clinical Patterns, Prognostic Implications,and Epidemiology. Pharm Pract. 2026;23(4):1-10.
11. Yuce Inel T, Uslu S, Demirci Yildirim T, Gulle S, Sen G. Hematologic Involvement in Systemic Lupus Erythematosus: Clinical Features and Prognostic Implications in a Hematology-Referred Cohort. J Clin Med. 2025;14(20):7304.
12. Ruiz-Irastorza G, Crowther M, Branch W, Khamashta MA. Antiphospholipid syndrome. Lancet. 2010;376(9751):1498-1509.
13. Wang H, Li X, Fang K, Zhu H, Jia R, Wang J. Analysis of characteristics related to the disease activity of systemic lupus erythematosus and construction of an evaluation model. Beijing Da Xue Xue Bao. 2024;56(6):1017-1022.