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Ono R, Kitagawa I. SARS-CoV-2 infection-induced immune thrombocytopenia: a systematic review of current reports. Ann Hematol 2024:10.1007/s00277-024-05765-1. [PMID: 38652242 DOI: 10.1007/s00277-024-05765-1] [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: 02/08/2024] [Accepted: 04/17/2024] [Indexed: 04/25/2024]
Abstract
Immune thrombocytopenia (ITP) is an autoimmune disorder characterized by a low platelet count with increased risk of bleeding, and viral infection may trigger ITP. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection-induced ITP has been increasingly reported. We systemically reviewed the previously reported cases of SARS-CoV-2 infection-induced ITP and identified a total of 105 patients from 68 studies. The median age was 61 years, and 14 patients (12%) were < 18 years old (pediatric cases). In adult cases, a total of 53% patients were classified as moderate to severe SARS-CoV-2 infection. The median platelet count at diagnosis and nadir were 6,000/µL and 4,000/µL, respectively. When comparing platelet levels between non-severe SARS-CoV-2 infection and moderate to severe SARS-CoV-2 infection, the median values of platelet levels at diagnosis were not significantly different between the groups (4,000/µL in non-severe SARS-CoV-2 infection and 9,000/µL in moderate to severe SARS-CoV-2 infection, p-value = 0.22). Median nadir platelet levels were also not significantly different between groups (4,000/µL in non-severe SARS-CoV-2 infection and 8,000/µL in moderate to severe SARS-CoV-2 infection, p-value = 0.27). More than half of the cases (53 patients) were treated with combination therapy including steroid, intravenous immunoglobulin, and eltrombopag. Major bleeding and intracranial hemorrhage occurred in ten (11%) and six (6.6%) cases, respectively. The overall mortality rate was 7%. In pediatric cases, none of the patients experienced major bleeding and lethal outcomes.
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Affiliation(s)
- Ryohei Ono
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-Ku, Chiba, 260-8670, Japan.
| | - Izumi Kitagawa
- Department of General Internal Medicine, Shonan Fujisawa Tokushukai Hospital, Japan, 1-5-1 Tsujido Kandai, Fujisawa, Kanagawa, 251-0041, Japan
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Ioannou M, Zacharouli K, Doukas SG, Diamantidis MD, Tsangari V, Karakousis K, Koukoulis GK, Vageli DP. Hemophagocytic lymphohistiocytosis diagnosed by bone marrow trephine biopsy in living post-COVID-19 patients: case report and mini-review. J Mol Histol 2022; 53:753-762. [PMID: 35699822 PMCID: PMC9192937 DOI: 10.1007/s10735-022-10088-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/31/2022] [Indexed: 12/15/2022]
Abstract
Hemophagocytic lymphohistiocytosis (HLH) constitutes a life-threatening inflammatory syndrome. Postmortem histological findings of bone marrow (BM) from COVID-19 patients showed histiocytosis and hemophagocytosis and supported the hypothesis that secondary HLH (sHLH) may be triggered by SARS-CoV-2 infection. However, there are a limited number of sHLH cases in which trephine has been performed in living post-COVID-19 patients. Here we present a recent case and a mini-review of sHLH diagnosed by trephine biopsy in living patients after COVID-19. An 81-year-old man with a past medical history of hypertension, diabetes, ischemic stroke, was referred to the hospital to evaluate leukocytosis, pyuria, and elevation of inflammatory markers four weeks after recovering from COVID-19. Computed tomography of the abdomen did not reveal focal signs of infection or hepatosplenomegaly. The patient received intravenous meropenem and two packed red blood cell units. Leukocytes and C-reactive protein were gradually decreased. A BM biopsy was performed and the patient was discharged on cefixime. BM smear revealed severe anemia, lymphopenia, and dysplastic morphologic findings of erythroblasts, neutrophils, and megakaryocytes. Trephine biopsy revealed hypercellular marrow dyserythropoiesis, plasmacytosis, lymphocytosis, histiocytosis, hemophagocytosis, and the absence of granulomas or carcinoma. Immunohistochemistry documented a mixed population of T lymphocytes (CD3+) and B lymphocytes (CD20+). Strong positivity for CD68 confirmed histiocytosis. CD138 κ, λ staining proved polyclonal plasmacytosis. Perl's staining showed excess hemosiderin deposits. Based on our findings, we document sHLH in trephine BM biopsy of a living post-COVID-19 patient and persistent leukocytosis, underscoring the diagnostic value of trephine biopsy in preventing life-threatening conditions such as COVID-19.
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Affiliation(s)
- Maria Ioannou
- Department of Pathology, Faculty of Medicine, Medical School, School of Health Sciences, University of Thessaly, Biopolis, 41500, Larissa, Greece
| | - Konstantina Zacharouli
- Department of Pathology, Faculty of Medicine, Medical School, School of Health Sciences, University of Thessaly, Biopolis, 41500, Larissa, Greece
| | - Sotirios G Doukas
- Department of Toxicology Department of Forensic Sciences and Laboratory of Toxicology, Medical School, University of Crete, 71003, Heraklion, Greece
- Department of Medicine, Rutgers/Saint Peter's University Hospital, 08901, New Brunswick, NJ, USA
| | - Michael D Diamantidis
- Thalassemia and Sickle Cell Disease Unit, Department of Hematology, General Hospital of Larissa, Larissa, Greece
| | - Vaya Tsangari
- Department of Pathology, Faculty of Medicine, Medical School, School of Health Sciences, University of Thessaly, Biopolis, 41500, Larissa, Greece
| | | | - George K Koukoulis
- Department of Pathology, Faculty of Medicine, Medical School, School of Health Sciences, University of Thessaly, Biopolis, 41500, Larissa, Greece
| | - Dimitra P Vageli
- Department of Pathology, Faculty of Medicine, Medical School, School of Health Sciences, University of Thessaly, Biopolis, 41500, Larissa, Greece.
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