ArticleJournal of Korean medical science2024
Long-Term Outcomes of COVID-19 and Risk Factors for Prolonged or Persistent COVID-19 in Lymphoma Patients: A Multicenter, Retrospective Cohort Study.
Article in Journal of Korean medical science, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Diagnostic Pitfall: Prolonged COVID-19 Presenting as Organising Pneumonia in a Rituximab-Treated Patient with Rheumatoid Arthritis.Mediterranean journal of rheumatology · 2026Article
- Prolonged SARS-CoV-2 infection in hematologic malignancies: clinical impact, risk factors and intra-host viral evolution.Frontiers in immunology · 2026Observational
- Chemotherapy and anti-CD20 monoclonal antibody impact on SARS-CoV-2 nucleic acid amplification tests in hematologic malignancies: a retrospective study.BMC infectious diseases · 2025Observational
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14 authors.
Funding
Abstract
backgroundPatients with hematologic malignancies exhibit persistent severe acute respiratory syndrome coronavirus 2 positivity over long periods after coronavirus disease 2019 (COVID-19) diagnosis. However, the frequency of, risk factors for, and prognosis of prolonged COVID-19 in immunocompromised patients remain unclear. Therefore, we investigated the long-term outcomes of COVID-19 in lymphoma patients and identified the associated factors and impact of prolonged COVID-19 on mortality.
methodsA multicenter retrospective cohort study of 583 lymphoma patients was conducted in 3 tertiary hospitals in South Korea. Patients receiving lymphoma treatment who were quarantined after obtaining a diagnosis of COVID-19 by polymerase chain reaction (PCR) or antigen test from August 2021 to September 2022 were examined.
resultsOverall, 115 patients (19.7%) were diagnosed with COVID-19. Among 77 patients with clinical data, 24 had prolonged COVID-19. Patients in the prolonged COVID-19 group showed higher rates of receiving rituximab maintenance therapy following bendamustine and rituximab (BR) treatment for follicular lymphoma. This group did not show significant differences in clinical presentation within 30 days of COVID-19 diagnosis; however, it showed higher rates of re-admission due to COVID-19 pneumonia compared with the non-prolonged COVID-19 group. BR treatment followed by rituximab maintenance therapy is one of the risk factors for persistent PCR positivity, delayed or persistent pneumonia, and COVID-19 related admission after quarantine period. Prolonged COVID-19 was an independent risk factor for 1-year mortality.
conclusionProlonged COVID-19 was more frequent in lymphoma patients who received BR treatment followed by rituximab maintenance therapy and associated with unfavorable long-term outcomes and higher 1-year mortality.
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