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Infection in Multiple Myeloma: Microbiological Profile and Prognosis in Senegalese Patients

Open Journal of Blood Diseases 2024年第2期14卷 47-58页

作者： Seynabou Fall El Hadj Daouda Niang Khadim Sarr Lolita Mariéme Camara-Tall Modou Moustapha Ciss Amy Thiam Aminata Dakono Awa Ndiaye Fatou Samba Diago Ndiaye clinical hematology department of dalal jamm hospital Gudiawaye Dakar Sngal hematology Clinic Unit of Aristide Le Dantec hospital Dakar Sngal

Introduction: Infections are additional factors of morbidity and mortality in multiple myeloma (MM), and the current recommendation is antibiotic prophylaxis. In sub-Saharan Africa, few data on infectious complications of MM are available. We aim to describe the microbiological features of infections in MM, and their impact on survival in Senegalese patients. Methods: A retrospective (January 2005-January 2022), analytic, multicenter study on infections in patients followed for MM (IMWG criteria) in Senegalese clinical hematology services. The socio-epidemiological, diagnostic, microbiological, evolutionary and survival aspects were analyzed. Results: The study included 106 patients with multiple myeloma who had an infection at admission or during the treatment. Ten patients have the comorbidity (hypertension, lupus, type 2 diabetes). These patients had 136 infectious events identified at diagnosis (79.2%) or during chemotherapy (20.8%). The sites of infection are lung (42.6%), urinary (29.4%), dermatological (6.6%), digestive (5.2%), osteoarticular (4.4%), ear, nose and throat (3.7%), central nervous system (1.5%), or without site. We recorded 26.4% of patients with multi-site infections. The causal pathogens are bacteria (Gram-negative bacilli: 22.1%;Gram positive bacilli: 9.5%, Mycobacterium tuberculosis: 13.3%), parasitique (plasmodium falciparum 6.6%), viruses (SARS-COV2: 2.9%, VZV: 2.2%) and fungal (2.9%). Survival was reduced in patients who had an infection at the time of multiple myeloma diagnosis (p: 0.189) and those who had multiple infectious foci (p: 0.011). Conclusion: Infections in multiple myeloma are more frequent at diagnosis. The germs are varied and mostly bacteria, particularly gram-negative bacteria, and Kochs bacillus. Our study reveals that multiple infectious foci are a poor prognosis factor. It is necessary to evaluate the infectious risk early, and to adopt an antibiotic prophylaxis based on our tropical environment.

关键词： Multiple Myeloma Infections Tuberculosis Senegal

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Extranodal Locatio of Lymphoma: Presentation and Evolutionary in Senegalese Patients

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Open Journal of Blood Diseases 2023年第1期13卷 1-10页

作者： Seynabou Fall Mariéme Lolita Camara-Tall El Hadj Daouda Niang Khadim Sarr Awa Ndiaye Modou Moustapha Ciss Aminata Dakono Amy Thiam Fatou Samba Diago Ndiaye clinical hematology department of dalal jamm hospital guediawaye Guediawaye Senegal

Introduction: The frequency of extranodal involvement in lymphoma is not rare, but variously described by authors in Africa. The objective of our work is to describe the profile of patients followed for lymphoma with extranodal locations. Methods: We conducted a descriptive, retrospective and analytic study at the clinical hematology department of dalal jamm hospital, from September 2016 to June 2022. We included patients with a diagnosis of lymphoma immunohistochemistry, with extranodal involvement. The epidemiological, diagnostic, prognostic and survival aspects were studied. Results: Fifty-two (52) patients with extranodal localizations of their lymphoma were included. The mean age was 44.2 ± 17.6 years and the sex ratio was 1.2. The average time to diagnostic was 9.4 ± 3.6 months. We found a performance status ≥ 2 in 65.4% and at least one B symptom in 71.2% of cases. The extranodal manifestations were digestive (19%), cutaneous (17.5%), pleuropulmonary (17.5%), bone marrow (4.8%), thyroid (1.6%), parotid gland (1.6%) and breast (1.6%). Patients presented with Hodgkin’s lymphoma (HL) in 19.2% of cases and non-Hodgkin’s lymphoma (NHL) in 80.8% of cases. At the end of the extension checkup reviews, 61.5% were at an advanced stage and prognostic indices were unfavorable in 32% of patients. Conventional chemotherapy was conducted in 63.5% of patients of which 24 had NHL and 9 had HL. Immuno-chemoterapy was used in 26.9% of patients (13 cases of NHL, 1 case of HL). During the follow-up, we noted only 29.7% of complete remission. The median overall survival was 25.1 months [23.5 - 34.1 months] in HL group and 20.5 months [18.7 - 72.2 months] in NHL patients (p = 0.14). Conclusion: Our study shows that extranodal involvements of lymphomas are various, encountered more during NHL. In our practice, diagnosis is generally made at an advanced stage, with poor response to treatment.

关键词： Lymphoma Extranodal Involvement Advanced Stage Senegal

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Cyclophosphamide, Thalidomide and Dexamethasone (CTD) as First-Line Therapy in Multiple Myeloma Patients: An Experience in a clinical Haematology Centre in Dakar, Senegal

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Open Journal of Blood Diseases 2023年第1期13卷 43-50页

作者： El Hadji Daouda Niang Seynabou Fall Khadim Sarr Marième Lolita Camara Aminata Dakono Awa Ndiaye Modou Moustapha Ciss Amy Thiam Serge Mwamba Fatou Samba Diago Ndiaye department of clinical hematology Dalal Jamm Hospital Dakar Senegal

Introduction: Induction therapy followed by high-dose chemotherapy with autologous stem cell transplantation remains the gold standard for myeloma patients who can tolerate this treatment approach. In a developing country setting, in the absence of availability of bone marrow transplantation, the CTD protocol is an accessible treatment regimen whose efficacy and lower toxicity compared to the Melphalan Prednisone protocol has been reported. This protocol has been administered since 2018 in first line. It’s against this backdrop we perform this study to assess the efficacy of this CTD protocol in first line therapy. Methods: We conducted a descriptive and analytical study including clinical, paraclinical and evolutionary data of 50 patients with MM treated during the period range from 01 September 2018 and 01 July 2022 with the CTD protocol of cyclophosphamide (500 mg at D1, D8 and D15), dexamethasone (40 mg weekly) and thalidomide (100 mg/day) in 28-day cycles. Survival outcomes were estimated by the Kaplan-Meier method. Results: The mean age was 62.3 ± 9.1 years and the sex ratio was 0.7. An advanced prognostic score at diagnosis was found in 73.5% of patients according to the Salmon and Durie score and in 32% according to the ISS. Overall remission was noted in 64%, of which 34% were in very good partial remission and partial remission in 12% of cases. Progression was noted in 4 patients. Treatment-related side effects were mainly peripheral neuropathy and anaemia in 3 patients respectively. The median survival was 38.4 months. The progression-free survival was 60%. An advanced age (≥65 years) is correlated with negative impact on survival (p = 0.04). Conclusion: Cyclophosphamide, thalidomide and dexamethasone give good outcome with less toxicity. Thus, it remains a first-line treatment alternative for newly diagnosed and low-income patients.

关键词： Myeloma Chemotherapy Survival

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Three Cases of Plasma Cell Leukemia

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Open Journal of Internal Medicine 2022年第3期12卷 137-144页

作者： Mouhamed Dieng Atoumane Faye Jules Dabi Gabnon Baïdy Sy Kane Maïmouna Sow Michel Assane Ndour Seynabou Fall Nafi Diagne Awa Cheikh Ndao Demba Diedhiou Boundia Djiba Fatou Samba Ndiaye Maïmouna Ndour Mbaye Anna Sarr Awa Oumar Touré Abdoulaye Pouye Division of Internal Medicine Aristide Le Dantec Hospital Dakar Senegal Division of Internal Medicine Abass Ndao Hospital Dakar Senegal Division of clinical hematology Dalal Jamm Hospital Dakar Senegal Division of Biological hematology Aristide Le Dantec Hospital Dakar Senegal

Introduction: Plasma cell leukemia (PL) is a rare lymphoproliferative disorder characterized by the monoclonal proliferation of plasma cells in the marrow and blood peripheral. It is defined by a blood plasmacytosis greater than 2 G/l or a plasma cell level greater than 20% of leukocytes. It can be primitive or secondary to multiple myeloma (MM). We reported 3 cases of PL. Observations: Case 1: A 59 years old woman with fever, anemia with 7 g/dl, hyperleukocytosis 9200/mm3, thrombopenia 86 G/l inflammatory biological syndrome with CRP at 129 mg/l, hypercalcemia at 120 mg/l, renal failure with serum creatinine at 35 mg/l, urea at 0.85 g/l and 24-hour proteinuria at 0.98 g/24h. Β2 microglobulin at 10.34 mg/l. The blood smear shows dysmorphic plasma cells at 68% and the bone marrow at 79% of dysmorphic plasma cells. The immunophenotyping of blood cells, the electrophoretic serum protein, shows PL CD38+, secondary of a MM LAMBDA. Case 2: A 65-year-old man with type 2 diabetes presented, right femoral neck, anemia, hyperleukocytosis at 22 G/l, and thrombocytopenia at 99 G/l. There was no hypercalcemia, or kidney failure. The blood smear showed 28% of plasma cells and 9% of blasts. On the myelogram, the marrow was normal richness with significant medullary plasmacytosis (31%) made up of dysmorphic plasma cells. The CT scan showed a settling of the body of D5 with heterogeneous osteocondensation. The patient was transferred to hematology where she was treated with polychemotherapy. The evolution was unfavorable following a death due to malignant hypercalcemia. Case 3: A 62-year-old woman who had a 5-year follow-up of Ig G kappa multiple myeloma was treated with Melphalan, Prednisone, and thalidomide with a therapeutic break for 2 months. She came back to the Internal Medicine department with: severe global dehydration, anemia with externalized bleeding gingivorrhagia, pain in mechanical bones of the ribs, lower limbs, and pelvis, bilateral pneumonia. The biology

关键词： Plasma Cell Leukemia Multiple Myeloma

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