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1.
Am J Hematol ; 99(6): 1023-1030, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38488686

RESUMEN

Allogeneic hematopoietic stem cell transplant (HSCT) for adults with severe sickle cell disease (SCD) is potentially curative but not commonly utilized therapy due to complications such as graft failure (GF) and organ toxicity. Herein, we are reporting our long-term outcome data of non-myeloablative (NMA) HSCT in adults with severe SCD with emphasis on factors predicting event free survival (EFS). Adults with severe SCD undergoing NMA match-related donor allogeneic HSCT from 2015 to 2021 with at least 12 months of follow-up were included. A total of 200 patients were included with a median age of 26 years (14-43) and 56% were male. The median infused CD34 dose was 13.7 (5.07-25.8), respectively. Median absolute neutrophil count engraftment was 19 (13-39) days with 51% of patients receiving GCSF to expedite recovery. A total of 17 patients experienced GF; 3 as primary and 14 as secondary within a median time of 204 days (40-905). A 76% successfully discontinued sirolimus at the last follow-up. Median follow-up for the cohort is 29.2 (2.1-71.4) months. Estimated 3-year EFS and OS were 88.2% (81.9-92.5) and 94.6% (89.2-97.3). At multivariable analysis, minor ABC incompatibility hazard ratio (HR) 4 (1.3-12.1; 0.014) and allo-antibody against non-ABO donor antigens HR 4.3 (1.3-14.1; 0.016) were significant for EFS. No clonal evolution or myeloid malignancies were seen. This largest single-center report of NMA HSCT in adults with severe SCD further delineated its feasibility, potential toxicities, and fertility outcomes. GF remains a major impediment and appears dependent on ABO matching and non-ABO antibodies.


Asunto(s)
Anemia de Células Falciformes , Trasplante de Células Madre Hematopoyéticas , Humanos , Adulto , Masculino , Femenino , Anemia de Células Falciformes/terapia , Trasplante de Células Madre Hematopoyéticas/métodos , Adolescente , Adulto Joven , Trasplante Homólogo , Resultado del Tratamiento , Acondicionamiento Pretrasplante/métodos , Enfermedad Injerto contra Huésped/etiología , Estudios de Seguimiento , Estudios Retrospectivos , Aloinjertos
2.
Br J Haematol ; 192(4): 761-768, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-33534948

RESUMEN

Non-myeloablative haematopoietic progenitor cell transplantation (HPCT) from matched related donors (MRD) has been increasingly utilized in sickle cell disease (SCD). A total of 122 patients received 300 cGy of total body irradiation (TBI), alemtuzumab, unmanipulated filgrastim-mobilized peripheral blood HPC and sirolimus. The median follow-up was four years; median age at HPCT was 29 years. Median neutrophil and platelet engraftment occurred on day 22 and 19 respectively; 41 patients required no platelet transfusions. Overall and sickle-free survival at one and five years were 93% and 85% respectively. Age, sex, pre-HPCT sickle complications, ferritin and infused HPC numbers were similar between graft failure and engrafted patients. Mean donor myeloid chimaerism at one and five years post HPCT were 84% and 88%, and CD3 was 48% and 53% respectively. Two patients developed grade 1 and 2 skin graft-versus-host disease (GVHD) with no chronic GVHD. Median days of recipients taking immunosuppression were 489; 83% of engrafted patients have discontinued immunosuppression. Haemoglobin, haemolytic parameters and hepatic iron levels improved post HPCT. Pulmonary function testing, hepatic histology and neurovascular imaging remained stable, suggesting cessation of further sickle-related injury. Fourteen patients had children. In this largest group of adult SCD patients, this regimen was highly efficacious, well-tolerated despite compromised organ functions pre HPCT, and without clinically significant GVHD.


Asunto(s)
Anemia de Células Falciformes/terapia , Antígenos HLA , Trasplante de Células Madre Hematopoyéticas , Adolescente , Adulto , Alemtuzumab/uso terapéutico , Anemia de Células Falciformes/inmunología , Antineoplásicos Inmunológicos/uso terapéutico , Niño , Femenino , Rechazo de Injerto/etiología , Rechazo de Injerto/inmunología , Supervivencia de Injerto , Enfermedad Injerto contra Huésped/etiología , Enfermedad Injerto contra Huésped/inmunología , Antígenos HLA/inmunología , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Trasplante de Células Madre Hematopoyéticas/métodos , Humanos , Inmunosupresores/uso terapéutico , Masculino , Persona de Mediana Edad , Sirolimus/uso terapéutico , Donantes de Tejidos , Trasplante Homólogo/efectos adversos , Trasplante Homólogo/métodos , Resultado del Tratamiento , Adulto Joven
3.
Biol Blood Marrow Transplant ; 26(9): 1627-1634, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32505809

RESUMEN

Limited data exist regarding the prevalence and outcome of medication nonadherence in the adult allogeneic hematopoietic stem cell transplantation (allo-HSCT) population. The objective of this cross-sectional survey study is to determine the prevalence of medication nonadherence to immunosuppressant and nonimmunosuppressant medications in adult recipients of allo-HSCT. An electronic survey using previously validated medication adherence scales was distributed between December 2014 and April 2015 to 200 adult patients with at least 3 months of follow-up after allo-HSCT. Immunosuppressant serum drug levels and prescription refill records were retrospectively collected to assess correlation with survey responses. In the entire cohort, 51% of subjects (n = 102) reported nonadherence to nonimmunosuppressant medications (95% confidence interval [CI], 44.07% to 57.93%) on the Morisky Medication Adherence Scale. Of the 153 patients taking oral immunosuppressant medications at the time of the survey, 58 (37.9%) reported nonadherence to immunosuppressant therapy (95% CI, 30.22% to 45.6%), as measured by the Immunosuppressant Therapy Adherence Scale. Younger age and distress were associated with medication nonadherence. Nonadherence to immunosuppressant therapy was associated with mild chronic graft-vs-host disease (cGVHD), and a similar trend was observed for moderate cGVHD. Medication nonadherence was found to be highly prevalent for both immunosuppressant and nonimmunosuppressant medications in adult allo-HSCT recipient, and further study to identify interventions to improve adherence in these patients is warranted.


Asunto(s)
Enfermedad Injerto contra Huésped , Trasplante de Células Madre Hematopoyéticas , Adulto , Estudios Transversales , Humanos , Cumplimiento de la Medicación , Pacientes Ambulatorios , Estudios Prospectivos , Estudios Retrospectivos
4.
Biol Blood Marrow Transplant ; 23(9): 1478-1484, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28495641

RESUMEN

Acute graft-versus-host disease (aGVHD) is the leading cause of morbidity and mortality after allogenic hematopoietic cell transplantation (HCT). Corticosteroids are the first-line treatment; however, less than one-half of patients achieve durable remission. Studies suggest that TNF-α, a cytokine released from the bone marrow during conditioning, is involved in the pathogenesis of aGVHD. We retrospectively evaluated the outcome of anti-TNF-α therapy with infliximab in 35 patients with steroid refractory (SR) aGVHD. Infliximab was administered intravenously at 10 mg/kg for a median of 4 doses (range, 1 to 6) on a weekly basis. The overall response rates were 40% (17% complete response [CR], 23% partial response [PR]) at 4 weeks, 23% (9% CR, 14% PR) at 8 weeks, and 17% (all CR) at 12 weeks. Twenty-nine (83%) patients had infectious complications within 12 weeks of initiation of infliximab. These infections included 40 bacterial infections, 6 invasive fungal infections, and 5 viral reactivations. Twelve patients (34%) died secondary to infections. Overall survival at 12 weeks and 6 months from the start of infliximab therapy was 37% (13 of 35) and 17% (6 of 35), respectively; with most deaths secondary to complications from GVHD and infections. In conclusion; the use of infliximab therapy in patients with SR-aGVHD is associated with a modest poorly sustained response along with a heightened risk of severe infections. Future studies with more effective and less toxic therapies are needed for these patients.


Asunto(s)
Enfermedad Injerto contra Huésped/terapia , Neoplasias Hematológicas/terapia , Trasplante de Células Madre Hematopoyéticas , Infliximab/administración & dosificación , Agonistas Mieloablativos/efectos adversos , Acondicionamiento Pretrasplante/efectos adversos , Enfermedad Aguda , Corticoesteroides/uso terapéutico , Adulto , Anciano , Infecciones Bacterianas/etiología , Infecciones Bacterianas/inmunología , Infecciones Bacterianas/mortalidad , Infecciones Bacterianas/patología , Médula Ósea/efectos de los fármacos , Médula Ósea/inmunología , Médula Ósea/patología , Esquema de Medicación , Femenino , Enfermedad Injerto contra Huésped/inmunología , Enfermedad Injerto contra Huésped/mortalidad , Enfermedad Injerto contra Huésped/patología , Neoplasias Hematológicas/inmunología , Neoplasias Hematológicas/mortalidad , Neoplasias Hematológicas/patología , Humanos , Infliximab/efectos adversos , Inyecciones Intravenosas , Masculino , Persona de Mediana Edad , Micosis/etiología , Micosis/inmunología , Micosis/mortalidad , Micosis/patología , Estudios Retrospectivos , Análisis de Supervivencia , Trasplante Homólogo , Resultado del Tratamiento , Factor de Necrosis Tumoral alfa/antagonistas & inhibidores , Factor de Necrosis Tumoral alfa/biosíntesis , Factor de Necrosis Tumoral alfa/inmunología , Virosis/etiología , Virosis/inmunología , Virosis/mortalidad , Virosis/patología
5.
Biol Blood Marrow Transplant ; 22(8): 1431-1439, 2016 08.
Artículo en Inglés | MEDLINE | ID: mdl-27164061

RESUMEN

Fludarabine with busulfan (FB) and fludarabine with melphalan (FM) are commonly used reduced-intensity conditioning (RIC) regimens. Pharmacokinetic dosing of busulfan (Bu) is frequently done for myeloablative conditioning, but evidence for its use is limited in RIC transplants. We compared transplant outcomes of FB versus FM using i.v. Bu targeted to the area under the curve (AUC). A total of 134 RIC transplants (47 FB and 87 FM) for acute myelogenous leukemia and myelodysplastic syndrome were identified, and median follow-up of the cohort was 40 months (range, 0 to 63.3). A significantly higher 2-year cumulative incidence of relapse (CIR) was associated with FB versus FM at 35.6% versus 17.3%, respectively (P = .0058). Furthermore, 2-year progression-free survival rates were higher for FM versus FB at 60.5% versus 48.7%, respectively (P = .04). However, 2-year rates of nonrelapse mortality (NRM) and overall survival (OS) were similar. The need for dose adjustment based on AUC did not alter relapse risk or NRM. Patients with Karnofsky performance status ≥ 90 who received FM had a 2-year OS rate of 74.8% versus 48.3% for FB (P = .03). FB use remained prognostic for relapse in multivariable analysis (hazard ratio, 2.75; 95% confidence interval, 1.28 to 5.89; P = .0097). In summary, in spite of AUC-directed dosing, FB compared with FM was associated with a significantly higher CIR.


Asunto(s)
Busulfano/administración & dosificación , Melfalán/administración & dosificación , Agonistas Mieloablativos/uso terapéutico , Acondicionamiento Pretrasplante/métodos , Vidarabina/análogos & derivados , Adolescente , Adulto , Anciano , Área Bajo la Curva , Busulfano/farmacocinética , Femenino , Humanos , Estado de Ejecución de Karnofsky , Leucemia Mieloide Aguda/mortalidad , Leucemia Mieloide Aguda/terapia , Masculino , Persona de Mediana Edad , Agonistas Mieloablativos/farmacocinética , Síndromes Mielodisplásicos/mortalidad , Síndromes Mielodisplásicos/terapia , Recurrencia , Estudios Retrospectivos , Análisis de Supervivencia , Acondicionamiento Pretrasplante/mortalidad , Vidarabina/administración & dosificación , Adulto Joven
6.
Transfusion ; 56(2): 518-27, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26446051

RESUMEN

BACKGROUND: ABO incompatibility is not a contraindication to hematopoietic cell transplantation (HCT), but it has been associated with additional risks including delayed engraftment, pure red cell aplasia (PRCA), and higher transfusion needs. Data on these events and on patient survival after reduced-intensity conditioning (RIC) HCT are limited. STUDY DESIGN AND METHODS: A total of 127 consecutive patients, 86 with acute myeloid leukemia and 41 with myelodysplastic syndromes, who underwent HLA-matched peripheral blood RIC allogenic HCT between 2005 and 2014 were retrospectively analyzed. RESULTS: Eighty ABO-compatible, 26 major/bidirectional, and 21 minor-ABO-mismatch HCT were identified. Compared to the ABO-compatible group, major/bidirectional mismatches had increased red blood cell (RBC) transfusion requirement during the first 100 days (p = 0.009), delayed RBC and PLT engraftment (p = 0.0011 and p = 0.005, respectively), and higher incidence of grade II to IV acute graft-versus-host disease (aGVHD; p = 0.037). In multivariable analysis, major/bidirectional mismatches had significantly higher non-relapse mortality (NRM) and inferior disease-free survival (DFS) and overall survival (OS) compared with ABO-compatible patients (p = 0.01, p = 0.04, and p = 0.035, respectively). Minor ABO mismatch had no impact on survival (p = 0.99). Four (15%) of 26 major/bidirectional mismatches developed PRCA. There was a significant association between fludarabine plus busulfan conditioning and PRCA (p = 0.0046). CONCLUSION: Major/bidirectional ABO mismatch is associated with higher NRM and shortened DFS and OS in the setting of RIC HCT. Increased transfusion need, delayed RBC and platelet engraftment, PRCA, and increased severity of aGVHD are additional complications contributing to the morbidity.


Asunto(s)
Sistema del Grupo Sanguíneo ABO , Incompatibilidad de Grupos Sanguíneos , Trasplante de Células Madre Hematopoyéticas , Leucemia Mieloide Aguda/terapia , Síndromes Mielodisplásicos/terapia , Acondicionamiento Pretrasplante , Enfermedad Aguda , Adolescente , Adulto , Anciano , Aloinjertos , Transfusión de Eritrocitos , Femenino , Enfermedad Injerto contra Huésped/sangre , Enfermedad Injerto contra Huésped/etiología , Enfermedad Injerto contra Huésped/mortalidad , Humanos , Leucemia Mieloide Aguda/sangre , Leucemia Mieloide Aguda/mortalidad , Masculino , Persona de Mediana Edad , Síndromes Mielodisplásicos/sangre , Síndromes Mielodisplásicos/mortalidad , Factores de Riesgo
7.
Transpl Infect Dis ; 18(6): 913-920, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-27642723

RESUMEN

BACKGROUND: Screening for vancomycin-resistant Enterococcus (VRE) is performed at many transplant centers, but data on the impact of VRE colonization and bloodstream infection (BSI) on hematopoietic cell transplantation (HCT) outcomes remain conflicting. METHODS: Consecutive adults with acute myeloid leukemia who underwent allogeneic HCT between 2004 and 2014 were retrospectively reviewed. Patients were screened by perirectal PCR swabs targeting vanA and vanB twice weekly while inpatient. RESULTS: Of a total of 203 patients (median age 54 years), 73 (36%) were VRE colonized prior to HCT, 23 (11%) became colonized within the first 100 days, and 107 (53%) remained non-colonized through day 100 post HCT. A landmark analysis on HCT day 0 revealed no significant difference in overall survival according to pre-transplant colonization status (P=.20). However, patients with subsequent VRE colonization within the first 100 days of HCT had a significantly worse survival on both univariable (P=.04) and multivariable (P=.03) analyses. During the first 30 days post HCT, 11 (5% of total and 11% of the VRE colonized) patients developed VRE BSI. Ten (91%) of these had screened positive for VRE colonization before the bacteremia. Age ≥60 years, HCT-comorbidity index ≥3, and VRE colonization were independent risk factors for VRE BSI on multivariable analysis (P=.04, .03, .003, respectively). Only 1 (9%) patient with VRE BSI died within the first 100 days post HCT. CONCLUSION: VRE colonization is a surrogate marker and not an independent predictor of worse outcomes post HCT. VRE BSI is associated with increased morbidity, but does not impact post-HCT survival.


Asunto(s)
Bacteriemia/epidemiología , Infecciones por Bacterias Grampositivas/epidemiología , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Leucemia Mieloide Aguda/mortalidad , Leucemia Mieloide Aguda/cirugía , Enterococos Resistentes a la Vancomicina/aislamiento & purificación , Adolescente , Adulto , Anciano , Antibacterianos/uso terapéutico , Bacteriemia/microbiología , Proteínas Bacterianas/aislamiento & purificación , Ligasas de Carbono-Oxígeno/aislamiento & purificación , Femenino , Infecciones por Bacterias Grampositivas/sangre , Infecciones por Bacterias Grampositivas/microbiología , Humanos , Masculino , Persona de Mediana Edad , Reacción en Cadena de la Polimerasa , Prevalencia , Pronóstico , Estudios Retrospectivos , Factores de Riesgo , Análisis de Supervivencia , Trasplante Homólogo/efectos adversos , Vancomicina/uso terapéutico , Resistencia a la Vancomicina/genética , Enterococos Resistentes a la Vancomicina/fisiología , Adulto Joven
8.
Cancers (Basel) ; 15(18)2023 Sep 14.
Artículo en Inglés | MEDLINE | ID: mdl-37760519

RESUMEN

Bispecific T-cell engagers (BiTEs) and bispecific antibodies (BiAbs) have revolutionized the treatment landscape of hematological malignancies. By directing T cells towards specific tumor antigens, BiTEs and BiAbs facilitate the T-cell-mediated lysis of neoplastic cells. The success of blinatumomab, a CD19xCD3 BiTE, in acute lymphoblastic leukemia spearheaded the expansive development of BiTEs/BiAbs in the context of hematological neoplasms. Nearly a decade later, numerous BiTEs/BiAbs targeting a range of tumor-associated antigens have transpired in the treatment of multiple myeloma, non-Hodgkin's lymphoma, acute myelogenous leukemia, and acute lymphoblastic leukemia. However, despite their generally favorable safety profiles, particular toxicities such as infections, cytokine release syndrome, myelosuppression, and neurotoxicity after BiAb/BiTE therapy raise valid concerns. Moreover, target antigen loss and the immunosuppressive microenvironment of hematological neoplasms facilitate resistance towards BiTEs/BiAbs. This review aims to highlight the most recent evidence from clinical trials evaluating the safety and efficacy of BiAbs/BiTEs. Additionally, the review will provide mechanistic insights into the limitations of BiAbs whilst outlining practical applications and strategies to overcome these limitations.

9.
Leuk Res ; 130: 107316, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37245332

RESUMEN

BACKGROUND: The outcomes of Pediatric acute lymphoblastic leukemia (ALL) have improved dramatically whereas outcomes for ALL amongst adolescents and young adults (AYA) have lagged behind. The introduction of pediatric-like regimens to manage adult ALL has shown promising outcomes across several analyses. MATERIALS AND METHODS: In this analysis, we aimed to retrospectively compare the differences in outcomes among patients aged 14-40 years with Philadelphia-negative ALL treated with a Hyper-CVAD protocol versus a modified pediatric protocol. RESULTS: A total of 103 patients were identified with 58 (56.3%) in the modified ABFM group and 45 (43.7%) in the hyper-CVAD group. The median duration of follow-up for the cohort was 39 months (range 1-93). There were significantly lower rates of MRD persistence after consolidation (10.3% vs. 26.7%, P = 0.031) and transplantation (15.5% vs. 46.6%, P < 0.001) in the modified ABFM group. 5-year OS rates (83.9% vs. 65.3%, P = 0.036) and DFS rates (67.4% vs. 44%, P = 0.014) were higher in the modified ABFM groups. The incidence of grade 3 and 4 hepatotoxicity (24.1% vs. 13.3%, P < 0.001) and osteonecrosis (20.6% vs. 2.2%, P = 0.005) were higher in the modified ABFM group. CONCLUSION: Our analysis demonstrates that the use of a pediatric modified ABFM protocol demonstrated superior outcomes compared to the hyper-CVAD regimen in the treatment of Philadelphia-negative ALL amongst AYA patients. However, the modified ABFM protocol was associated with an increased risk of certain toxicities including high grade liver toxicity and osteonecrosis.


Asunto(s)
Leucemia-Linfoma Linfoblástico de Células Precursoras , Humanos , Adolescente , Adulto Joven , Niño , Estudios Retrospectivos , Leucemia-Linfoma Linfoblástico de Células Precursoras/tratamiento farmacológico , Leucemia-Linfoma Linfoblástico de Células Precursoras/complicaciones , Doxorrubicina/uso terapéutico , Ciclofosfamida/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Dexametasona/efectos adversos , Vincristina/uso terapéutico , Estudios Multicéntricos como Asunto
11.
Am J Case Rep ; 23: e936448, 2022 Aug 12.
Artículo en Inglés | MEDLINE | ID: mdl-35957503

RESUMEN

BACKGROUND Angioimmunoblastic T cell lymphoma (AITL) is an aggressive and rare entity that comprises about 1-2% of all non-Hodgkin lymphomas. This entity carries many challenges that start at the diagnosis, as most patients present with non-specific symptoms affecting different systems. As a result, the optimal approach, reaching the accurate diagnosis, and delivering needed treatment are delayed. Furthermore, it is not surprising that the initial set of biopsies are non-diagnostic given the heavy inflammatory background and scarcity of malignant cells in the early course of the disease. Other challenges include delivering the optimal curative therapy, as there is no such therapeutic option available yet. Although stem cell transplantation (SCT) can be considered a curative option, some patients have comorbidities and are not eligible for this option, and some other patients have relapse despite this aggressive approach, as was seen in our case. CASE REPORT We present an interesting case of AITL with florid leukemic infiltration at the time of relapse. We included a description of the patient's symptoms, diagnostic challenges, and clinical course, and provided therapy with demonstrative peripheral blood and flow cytometry images. Interestingly, there are very few reports in the literature that described leukemic infiltration of this entity. CONCLUSIONS Acknowledging the rarity of this aggressive lymphoma combined with all the challenges that face the involved health care workers, publishing this elaborative case report adds some insight and knowledge and helps improve our understanding of this entity.


Asunto(s)
Linfadenopatía Inmunoblástica , Linfoma no Hodgkin , Linfoma de Células T , Humanos , Linfadenopatía Inmunoblástica/diagnóstico , Linfadenopatía Inmunoblástica/terapia , Infiltración Leucémica , Linfoma de Células T/diagnóstico , Linfoma de Células T/terapia , Recurrencia Local de Neoplasia
12.
Front Med (Lausanne) ; 9: 901937, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35966855

RESUMEN

Introduction: Hematological parameters are critical in disease diagnosis, management, and monitoring; however, complete blood count (CBC) reference intervals vary across populations. The aim of the current study was to provide the reference ranges of hematological parameters/indices in the healthy adult Saudi population. Methods: A multicenter retrospective cross-sectional study was conducted with a sample of employees who were screened pre-employment from January 2015 to December 2019, at tertiary care hospitals in three regions. Demographic and CBC data were extracted from the electronic health system. The 2.5th and 97.5th percentiles were used to determine the reference intervals. Results: Of a total of 1,388 participants, 53.82% were male. The majority 96% was less than 40 years old, and 85% were from the Central region. Gender-related differences were observed for the RBC count, Hb, HCT, MCV, MCH, MCHC, and the platelet count. Age-related differences were observed for the RBC, Hb, HCT, and eosinophils. The WBC parameters did not differ by gender or age categories. Region-related differences were observed for the RBC, hemoglobin, HCT, MCV, WBC, and basophils. The platelet count was higher in the female group, the age group 40 years and above, and in the Western region. The prevalence of anemia was high in the female group and the Eastern region. The overall neutropenia rate was 12.8%. Conclusion: The data from this study provide hematological parameter reference ranges for the adult Saudi population by gender, age, and region. Gender and age-related differences were observed for the hematological parameters. Anemia was more frequent in the female group and the Eastern region. Caution must be taken when comparing or interpreting results from different age groups, gender, region of origin, and ethnicity.

13.
Hematol Oncol Stem Cell Ther ; 14(3): 252-256, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32201152

RESUMEN

Primary myelofibrosis (PMF) is a subtype of BCR-ABL1 negative myeloproliferative neoplasm. Its characteristic features include clonal myeloproliferation, dysregulation of kinase signaling pathway, abnormal release of cytokines leading to fibrosis in the bone marrow, osteosclerosis, and extramedullary hematopoiesis. Approximately 20% of deaths occur because of disease progression, but death may also result occur because of cardiovascular complications or as a consequence of either infection or bleeding. The only and curative option for PMF is allogeneic hematopoietic stem cell transplant (allo-HSCT); however, the Janus kinase (JAK) 1/2 inhibitor ruxolitinib is highly effective in reducing constitutional symptoms and spleen volume, and has been found to improve survival. Ruxolitinib decreases the activity of type I T-helper cells, leading to decreased release of cytokines including tumor necrosis factor-α, interleukin-1 (IL-1), IL-6, interferon-γ, and production of IL-12, which can be a risk factor for opportunistic infections. In this report, we describe three cases of tuberculosis reactivation shortly after initiation of ruxolitinib therapy followed by a literature review.


Asunto(s)
Trasplante de Células Madre Hematopoyéticas , Mielofibrosis Primaria/terapia , Pirazoles , Células TH1/inmunología , Tuberculosis , Anciano , Aloinjertos , Citocinas/inmunología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Nitrilos , Mielofibrosis Primaria/inmunología , Pirazoles/administración & dosificación , Pirazoles/efectos adversos , Pirimidinas , Tuberculosis/inducido químicamente , Tuberculosis/inmunología
14.
J Infect Public Health ; 14(7): 949-953, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34130118

RESUMEN

BACKGROUND: Diagnosis of COVID-19 infection in cancer patients is critical to co-manage their underlying disease and infection appropriately. Our study aimed at evaluating the sensitivity and specificity of screening patients with cancer for COVID-19 infection. METHODS: All oncology patients receiving care at Department of Oncology at King Abdulaziz Medical City in Riyadh were screened using the acute respiratory infection (ARI) survey. Nasopharyngeal and throat swap for polymerase chain reaction (PCR) testing for severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) was performed on patients who have high ARI score (i.e. ≥ 4), or any patient requiring elective/emergency hospitalization, undergoing a procedure as well as screening asymptomatic patients receiving chemotherapy between April 1st and July 30, 2020. Institutional Review Board approval was obtained. Descriptive and inferential analyses were done and sensitivity, specificity, positive and negative predictive values (PPV and NPV) were calculated considering the COVID-19 PCR as the gold standard. RESULTS: During the study period, a total of 473 patients were included with a median age was 56 years (14-104), 51% were female, 73% had solid tumors, and 66% received treatment within the last 3 months. These patients underwent 688 PCR tests along with ARI survey screening. Testing was done in the outpatient, inpatient, and emergency department setting in 41%, 40% and 19% of the patients, respectively. Majority of tests were screening of asymptomatic patients and only 23% were tested for suspected infections with ARI ≥ 4. A total of 54 patients (8%) had positive PCR for COVID-19 infection. The prevalence of infection varied from month to month ranging from 1.09% in April up to 19.70% in June and correlated with the average daily and active case load at a national level. The diagnostic yield of the ARI score also correlated with infection burden nationally. The PPV and NPV of the ARI as a screening tool was 18.24% (0-31.8) and 95.6% (86.36-98.86%) with the PPN fluctuating considerably in parallel with the prevalence of COVID-19 result. Similarly, the sensitivity and specificity of the ARI were 55.77% (0-70.59) and 79.4 (69.19-92), respectively. CONCLUSION: The yield of screening asymptomatic patients with cancer varies based on the community burden of COVID-19 infection. As universal screening can cause delays to patient care, it should be tailored based on the individual patient risks and infection burden in the region.


Asunto(s)
COVID-19 , Neoplasias , Detección Precoz del Cáncer , Femenino , Humanos , Persona de Mediana Edad , Neoplasias/diagnóstico , Estudios Retrospectivos , SARS-CoV-2
15.
Leuk Res Rep ; 16: 100276, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34804792

RESUMEN

Relapsed/refractory classical Hodgkin lymphoma (R/R cHL) patients refractory to first line salvage have poor outcomes. Herein we report the outcome of R/R cHL patients requiring ≥two vs. one line in the era of chemo-immunotherapy. Among 55 R/R cHL patients, 33 (60%) required one, 22 (40%) required ≥two lines. At 2 years, the estimated PFS and OS for patients requiring one vs. ≥two lines was 71.2% (50.1-84.7) vs. 51.9% (27.6-71.6), p= 0.16 and 84.6% (63-94) vs. 84% (58-95), p= 0.88, respectively. Patients requiring ≥two salvage lines prior to HCT can achieve comparable outcomes to those requiring one, possibly due to brentuximab vedotin leading to higher CMR rates.

16.
J Family Med Prim Care ; 10(6): 2353-2357, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-34322437

RESUMEN

CONTEXT: Blood donation is an essential lifesaving procedure. There is a continuous effort to supply the high demand in hospitals. AIMS: To assess the current status, knowledge, and attitudes of female health care students in King Saud Bin Abdulaziz University for Health Sciences (KSAU-HS) regarding blood donation. SETTINGS AND DESIGN: A cross-sectional study was done with students in the female campus of KSAU-HS in Riyadh. METHODS AND MATERIAL: The sample was categorized based on the college and year of study. A self-administered questionnaire was distributed during the first semester of the 2018-2019 academic year to an estimated 20%-25% of students per batch. STATISTICAL ANALYSIS USED: Statistical Package for Social Sciences version 22 (SPSS Inc., Chicago, IL). RESULTS: A total of 302 students completed the questionnaire with a median age of 21 years and a range of 18-30 years. Only 14.6% of the sample previously donated blood, with half of this group donating more than once. Just less than half (48.7%, n = 147) have been exposed previously to a university campaign related to blood donation. The majority (74.5%, n = 225) knew their blood type, small proportions (16.6%, n = 50) and (10.9%, n = 33) reported knowing family members or friends requiring blood products. More than half (57.6%) of the students admitted not having sufficient knowledge regarding blood donation, and the majority (75.1%) were not aware of the quantity of blood collected during a donation. Two-thirds, 31.4% and 32.1% agree and strongly agree, respectively, that blood donation is a duty that every individual should perform. Just more than half (53%) of the students strongly agreed that they are motivated to donate blood on moral or religious grounds. CONCLUSION: The proportion of prior blood donation in the sample was low. This is due, in part, to inadequate knowledge about the donation process. Given that many students felt motivated to donate, it is possible that raising awareness through educational interventions could increase donations in female health care students.

17.
Crit Care Res Pract ; 2021: 5589768, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34603795

RESUMEN

BACKGROUND: Refractoriness to platelet transfusion is an understudied phenomenon in critically ill patients. Our objective was to evaluate the prevalence, risk factors, and clinical outcomes of platelet refractoriness among patients in a tertiary-care intensive care unit (ICU). METHODS: A retrospective cohort study included all patients (age >14 years) who were admitted to a tertiary-care medical-surgical ICU between 2011 and 2016 and received ≥2 platelet transfusions during their ICU stay. We calculated platelet increment (PI) and corrected count increment (CCI). RESULTS: A total of 267 patients were enrolled in the study, collectively receiving 1357 transfusions with a median of 4.0 (interquartile range: 2.0, 6.0) transfusions per patient. The median pretransfusion platelet count was 31000.0 × 106/L (interquartile range: 16000.0, 50000.0). The median PI was 6000 × 106/L. The prevalence of platelet transfusion refractoriness was 54.8% based on PI < 10000 × 106/L and 57.0% based on CCI <5000. Patients admitted under hepatology/liver transplant had the highest rates of platelet refractoriness (69.6%), while those under general surgery had the lowest rate (43.2%). Younger age, nontrauma admission, and larger spleen size were associated with platelet refractoriness. Finally, refractoriness was associated with increased length of stay in the ICU (p = 0.02), but not with mortality. CONCLUSIONS: Platelet transfusion refractoriness was highly (>50%) prevalent in ICU patients. However, it was not associated with increased mortality.

18.
Leuk Res Rep ; 15: 100240, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33936943

RESUMEN

The prognostic impact of CD20 expression and rituximab therapy in classical Hodgkin lymphoma (cHL) is unclear. Among 310 patients, CD20 was expressed in 66 (22%) cases. The 3-year PFS was 75.1% for CD20+and 70% for CD20- (p = 0.36). The 3-year PFS was 84.7% for the rituximab group and 67.8% for the no rituximab group (p = 0.23). Only constitutional symptoms and positive interim PET/CT were significantly associated with worse outcome, HR 3.2 (1.14-9.01; p = 0.028) and 4.3 (2.27-8.1; p < 0.0001), respectively. Neither CD20 expression nor rituximab use significantly impacted outcome.

19.
JCO Oncol Pract ; 17(11): e1794-e1802, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-33905260

RESUMEN

PURPOSE: Patients with terminal diseases frequently undergo interventions that are futile and may be detrimental to their quality of life. We conducted a quality improvement project aimed to reduce the utilization of futile acute care services (ACSs) for patients with cancer treated with a palliative intent. METHODS: A multidisciplinary team reviewed the records of terminally ill patients with cancer who died between November 2017 and May 2018, during their admission at our institution. The review aimed to assess the magnitude of improper utilization of ACSs and admission to the intensive care unit (ICU). Lack of timely documentation of the goals of care (GOCs) was the main reason for this problem. We defined timely documentation as the availability of electronic documentation of patients' GOC before the need for ACSs. Interventions were implemented to improve the process; postintervention data were captured and compared with the baseline data. RESULTS: After the delivery of staff education and the implementation of mandatory documentation of the GOCs in the healthcare electronic record system, the timely documentation of the GOCs for patients with a palliative intent increased significantly from 59% at baseline to 83% in the postintervention phase. The impact of this intervention led to a decrease in admissions to the ICU from 26% to 12% and an estimated annual cost saving of $777,600 in US dollars. CONCLUSION: Our interventions resulted in improved documentation of the GOCs and decrease in the utilization of ACSs including ICU admissions and the associated cost.


Asunto(s)
Neoplasias , Enfermo Terminal , Humanos , Neoplasias/terapia , Cuidados Paliativos , Calidad de Vida , Respeto
20.
J Infect Public Health ; 14(3): 353-357, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33647552

RESUMEN

BACKGROUND: Middle East Respiratory Syndrome Coronavirus (MERS-CoV) is associated with a high fatality rate (34%), which is higher in the presence of co-morbidities. The aim of the current study was to assess the clinical course and the outcome in hematological or oncological malignancy cases, diagnosed with MERS-CoV. METHODS: This is a case series of hematological /oncological cases, diagnosed with MERS-CoV, in a tertiary care setting in 2015. The cases were identified based on the World Health Organization (WHO) MERS-CoV case definition. The demographic, clinical, and outcome data were retrieved from the patients' medical charts and electronic health records. RESULTS: In total, nine hematological or oncological cases were identified, diagnosed with MERS-CoV. The baseline malignant condition was hematological malignancy in seven patients, as well as colon cancer and osteosarcoma in one patient each. Six (67%) patients were male. The median age was 65 years (range 16-80 years). Co-morbidities included chronic kidney disease (n = 3.33%), diabetes mellitus (n = 3.33%), and hypertension (n = 2.22%). The presenting symptoms were shortness of breath (n = 6.66%), fever (n = 5.55%), cough (n = 2.22%), and diarrhea (n = 2.22%). Chest x-rays indicated bilateral infiltrates in 6 patients (66%). The PCR (polymerase chain reaction) test was repeated in six patients to confirm the diagnosis. The mortality rate was 100%, and the median time to death was 26 days (range 15-77 days). CONCLUSION: MERS-CoV infection in this small cohort of hematology or oncology patients has a 100% mortality rate, regardless of the status of the underlying disease. The confirmation of the diagnosis may require repeated testing. Additional studies are required to verify the findings and to elucidate the disease pathogenesis in cancer patients.


Asunto(s)
Infecciones por Coronavirus , Enfermedades Hematológicas , Coronavirus del Síndrome Respiratorio de Oriente Medio , Neoplasias , Adolescente , Adulto , Anciano , Infecciones por Coronavirus/diagnóstico , Infecciones por Coronavirus/epidemiología , Femenino , Enfermedades Hematológicas/complicaciones , Humanos , Masculino , Neoplasias/complicaciones , Arabia Saudita/epidemiología
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