RESUMO
The ongoing COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus 2 is a global public health crisis. Multiple observations indicate poorer post-infection outcomes for patients with cancer than for the general population. Herein, we highlight the challenges in caring for patients with acute leukaemias and myeloid neoplasms amid the COVID-19 pandemic. We summarise key changes related to service allocation, clinical and supportive care, clinical trial participation, and ethical considerations regarding the use of lifesaving measures for these patients. We recognise that these recommendations might be more applicable to high-income countries and might not be generalisable because of regional differences in health-care infrastructure, individual circumstances, and a complex and highly fluid health-care environment. Despite these limitations, we aim to provide a general framework for the care of patients with acute leukaemias and myeloid neoplasms during the COVID-19 pandemic on the basis of recommendations from international experts.
Assuntos
Betacoronavirus/patogenicidade , Infecções por Coronavirus/complicações , Controle de Infecções/normas , Leucemia/terapia , Transtornos Mieloproliferativos/terapia , Pneumonia Viral/complicações , Guias de Prática Clínica como Assunto/normas , Adulto , COVID-19 , Infecções por Coronavirus/transmissão , Infecções por Coronavirus/virologia , Gerenciamento Clínico , Prova Pericial , Humanos , Leucemia/virologia , Transtornos Mieloproliferativos/virologia , Pandemias , Pneumonia Viral/transmissão , Pneumonia Viral/virologia , Alocação de Recursos , SARS-CoV-2RESUMO
OBJECTIVES: To evaluate peripheral blood (PB) for minimal residual disease (MRD) assessment in adults with acute lymphoblastic leukaemia (ALL). METHODS: We analysed 76 matched bone marrow (BM) aspirate and PB specimens independently for the presence of ALL MRD by six-colour flow cytometry (FC). RESULTS: The overall rate of BM MRD-positivity was 24% (18/76) and PB was also MRD-positive in 22% (4/18) of BM-positive cases. We identified two cases with evidence of leukaemic cells in PB at the time of the extramedullary relapse that were interpreted as MRD-negative in BM. CONCLUSIONS: The use of PB MRD as a non-invasive method for monitoring of systemic relapse may have added clinical and diagnostic value in patients with high risk of extramedullary disease.
Assuntos
Detecção Precoce de Câncer/métodos , Citometria de Fluxo , Imunofenotipagem/métodos , Células Neoplásicas Circulantes/imunologia , Leucemia-Linfoma Linfoblástico de Células Precursoras B/diagnóstico , Leucemia-Linfoma Linfoblástico de Células Precursoras B/terapia , Leucemia-Linfoma Linfoblástico de Células T Precursoras/diagnóstico , Leucemia-Linfoma Linfoblástico de Células T Precursoras/terapia , Adulto , Idoso , Exame de Medula Óssea , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasia Residual , Leucemia-Linfoma Linfoblástico de Células Precursoras B/sangue , Leucemia-Linfoma Linfoblástico de Células Precursoras B/imunologia , Leucemia-Linfoma Linfoblástico de Células T Precursoras/sangue , Leucemia-Linfoma Linfoblástico de Células T Precursoras/imunologia , Valor Preditivo dos Testes , Recidiva , Resultado do Tratamento , Adulto JovemRESUMO
BACKGROUND: Successful bone marrow assessment is essential to the diagnosis and staging of hematologic malignancies. The objective of this study was to determine whether specific operator techniques and/or use of a specimen preparation checklist could impact the quality of bone marrow assessment by reducing the frequency of nonspicular aspirates, small cores, and nondiagnostic samples. METHODS: All bone marrow biopsies performed at the Dana-Farber Cancer Institute from April, 2012 to September, 2012 were eligible for inclusion. Six operator techniques were linked with specimen quality in a preintervention cohort. Next, a specimen preparation checklist was implemented, and outcomes were compared from the preintervention and postintervention cohorts. RESULTS: In total, 830 procedures performed by 41 operators were prospectively observed and analyzed. In the preintervention cohort (n = 413), no operator technique was associated with specimen quality in multivariable models accounting for patient characteristics and operator. Compared with the preintervention cohort, in multivariable analyses, the postintervention cohort (n = 417) had decreased odds of nondiagnostic specimens (odds ratio, 0.49; 95% confidence interval, 0.28-0.87; P = .01) and core lengths ≤1 cm (odds ratio, 0.67; 95% confidence interval, 0.50-0.90; P = .009), but there was no significant difference in spicularity. CONCLUSIONS: Variation in the operator techniques studied did not have an impact on specimen quality, but implementation of a specimen preparation checklist significantly improved core length and frequency of diagnostic samples.
Assuntos
Células da Medula Óssea/citologia , Exame de Medula Óssea/métodos , Manejo de Espécimes/métodos , Biópsia por Agulha Fina/métodos , Células da Medula Óssea/patologia , Exame de Medula Óssea/instrumentação , Exame de Medula Óssea/normas , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Manejo de Espécimes/instrumentação , Manejo de Espécimes/normasRESUMO
We explored whether geriatric assessment variables predicted mortality in addition to known prognostic factors in 101 patients aged ≥ 65 with newly diagnosed AML. Baseline comorbidity score (HR=1.92; 95%CI 1.18-3.11), difficulty with strenuous activity (HR=2.18; 95%CI 1.19-4.00), and pain (HR=2.17; 95%CI 1.19-3.97) were independent prognostic factors for greater risk of death in a multivariable model that included cytogenetic risk group. They remained independent predictors in the subset of patients with baseline ECOG PS 0-1. Our results support the use of geriatric assessment to better predict prognosis in older patients with AML, even among those with excellent functional status.