Publications by authors named "Marcia K Campos"
Clinical Impact and Risk Factors of Mortality in Hospitalized Children and Adolescents With Hematologic Diseases and COVID-19: An Observational Retrospective Cohort Study.
J Pediatr Hematol Oncol
April 2023
This study aimed to evaluate the risk factors for COVID-19-related death in a large cohort of hospitalized children with hematological disorders. We performed an analysis of all pediatric patients with COVID-19 registered in a Brazilian nationwide surveillance database between February 2020 and May 2021. The primary outcome was time to death, which was evaluated considering discharge as a competitive risk by using the cumulative incidence function.
View Article and Find Full Text PDFObjective: Describe the clinical and demographic characteristics of pediatric patients with non-Hodgkin's lymphoma (NHL) enrolled in a tertiary unit of Pediatric Hematology between 1982-2015.
Patients And Methods: A retrospective cohort study of 140 patients aged 16 years or less with NHL. Demographic characteristics, data on diagnosis, and outcomes were analyzed.
Objectives: To improve the level of 'definitive' diagnosis of Langerhans cell histiocytosis by immunohistochemical investigation of the CD1a surface antigen and to compare outcomes in respect to age, gender, stage of the disease, treatment response and level of diagnostic accuracy.
Methods: A retrospective study was carried out of 37 children and adolescents with possible Langerhans cell histiocytosis between 1988 and 2008. The diagnoses were revisited using immunohistochemical investigations for CD1a, S-100 and CD68 in an attempt to reach definitive diagnoses for all cases.
Objectives: To describe the clinical course of Langerhans cell histiocytosis and to compare its outcome according to age, staging of the disease and treatment response.
Methods: Retrospective analysis of data on 33 children with Langerhans cell histiocytosis followed at Hospital das Clínicas, Universidade Federal de Minas Gerais, Brazil, between 1988 and 2004.
Results: Age at diagnosis ranged from 2 months to 16 years (median: 2.