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Practice Guideline
Clinical Practice Guideline: Diffuse Large B-Cell Lymphoma and Related Entities—Diagnosis, Treatment, and Follow-Up.
- Moritz Ernst, Ulrich Dührsen, Dirk Hellwig, Georg Lenz, Nicole Skoetz, and Peter Borchmann.
- Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne; Clinic for Hematology, University Hospital Essen; Department for Nuclear Medicine, University Hospital Regensburg; Department of Medicine A for Hematology, Oncology, and Pneumology, University Hospital Münster.
- Dtsch Arztebl Int. 2023 Apr 28; 120 (17): 289296289-296.
BackgroundDiffuse large B-cell lymphoma (DLBCL) is the most common malignant B-cell neoplasm, with an incidence of 5.6 per 100 000 persons per year and a mean age of onset of approximately 65 years. It is an aggressive type of non-Hodgkin's lymphoma requiring urgent treatment with curative intent. Evidence-based guidelines have not been available to date.MethodsFor this first international evidence-based DLBCL-specific guideline, various systematic literature searches were performed. 5 systematic reviews, 21 randomized controlled trials (RCTs), and 36 non-randomized studies were used to formulate 42 recommendations. 142 were formulated on the basis of expert consensus. All recommendations were approved in a structured consensus-finding process.ResultsFor staging, combined positron emission tomography and computed tomography (PET/CT) should be performed (evidence: a prospective registry study). For all patients with a new diagnosis of DLBCL and without contraindications, R-CHOP based immunochemotherapy (rituximab, cyclophosphamide, doxorubicin, vincristine, prednisone) should be initiated with curative intent (evidence: RCTs). The individual treatment strategy is tailored to the patient's age and risk constellation. Once immunochemotherapy has been completed, PET/CT should be performed again to check for remission. Patients with PET-positive residual disease that is amenable to radiotherapy should be treated with consolidating irradiation (evidence: retrospective cohort study).ConclusionThis clinical practice guideline on the diagnosis, treatment, and followup of patients with DLBCL and related entities provides a standardized clinical management approach, identifies areas where improvement would be desirable, and can serve as a basis for the development of further studies.
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