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Yamaguchi K, Yamamoto H, Izutsu K, Yuasa M, Kaji D, Nishida A, Ishiwata K, Takagi S, Yamamoto G, Asano-Mori Y, Uchida N, Taniguchi S. Fatal outcome of BK virus encephalitis in an allogeneic stem cell transplantation recipient. J Infect Chemother 2024:S1341-321X(24)00096-5. [PMID: 38514025 DOI: 10.1016/j.jiac.2024.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 03/15/2024] [Accepted: 03/18/2024] [Indexed: 03/23/2024]
Abstract
BK virus (BKV) encephalitis is a rare complication after hematopoietic stem cell transplantation (HSCT). A 43-year-old woman with recurrent follicular lymphoma after autologous HSCT received allogeneic bone marrow transplantation from a human leukocyte antigen-matched related donor. Neutrophil engraftment was achieved on post-transplant day 13. Memory loss and noncooperative attitude toward the medical staff were observed on day 16, and her mental status worsened progressively. Magnetic resonance imaging (MRI) showed nonspecific findings on day 19; however, cerebrospinal fluid (CSF) analysis including real-time polymerase chain reaction on day 20 revealed elevated levels of BKV 4.67 × 104 copy/mL. BKV encephalitis was diagnosed based on CSF findings, intravenous administration of immunoglobulin and cidofovir was started, and the immunosuppressive agent dose was reduced. Diffusion-weighted MRI on day 28 showed signal abnormalities in the bilateral periventricular white matter. Although the follow-up CSF analysis on day 35 was negative for BKV, her mental status and MRI findings did not improve, and she died on day 55 because of respiratory failure. This case emphasizes the importance of considering BKV encephalitis as a differential diagnosis of post-transplant encephalitis, considering the central nervous system-associated immune reconstitution inflammatory syndrome in patients with worsening central nervous system findings after eradication of BKV in the CSF.
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Affiliation(s)
| | | | - Koji Izutsu
- Department of Hematology, Toranomon Hospital, Tokyo, Japan
| | | | - Daisuke Kaji
- Department of Hematology, Toranomon Hospital, Tokyo, Japan
| | - Aya Nishida
- Department of Hematology, Toranomon Hospital, Tokyo, Japan
| | | | | | - Go Yamamoto
- Department of Hematology, Toranomon Hospital, Tokyo, Japan
| | | | - Naoyuki Uchida
- Department of Hematology, Toranomon Hospital, Tokyo, Japan
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Liu S, Huo F, Dai G, Wu J, Qin M, Mao H, Wang Q. Case Report: Immune reconstitution inflammatory syndrome after hematopoietic stem cell transplantation for severe combined immunodeficiency. Front Immunol 2022; 13:960749. [PMID: 36225916 PMCID: PMC9548620 DOI: 10.3389/fimmu.2022.960749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 09/06/2022] [Indexed: 12/04/2022] Open
Abstract
We report a case of immune reconstitution inflammatory syndrome (IRIS) after hematopoietic stem cell transplantation (HSCT). The patient had sever bacillus Calmette–Guerin (BCG) vaccine–caused disseminated infection and had received allogeneic HSCT for X-linked severe combined immunodeficiency disease. After HSCT, complicated by treatment-responding veno-occlusive disease and acute graft-versus-host disease, at the time when immunosuppressants were withdrawn, the patient experienced recurrent fever accompanied by elevated inflammatory indicators. After receiving glucocorticoids and ibuprofen, the patient’s condition improved, and a diagnosis with BCG-related IRIS was made.
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