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Telles L, Melo PHM, Dornelas LB, Lech GE, Sampaio NZ, Gerk A, Carroll M, Camargo CP. Epidemiological profile trends and cost of pediatric sickle cell disease in Brazil from 2008 to 2022. J Pediatr (Rio J) 2024:S0021-7557(24)00110-4. [PMID: 39251065 DOI: 10.1016/j.jped.2024.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 07/08/2024] [Accepted: 07/17/2024] [Indexed: 09/11/2024] Open
Abstract
OBJECTIVE This study aimed to investigate the epidemiological trends of Pediatric Sickle Cell Disease (SCD) in Brazil over the period 2008-2022, with a focus on understanding the incidence, mortality rates, and associated healthcare costs. The study explored potential associations between patient characteristics and the occurrence of crises in pediatric SCD cases. METHODS A cross-sectional study was conducted, analyzing national annual rates of pediatric SCD hospitalizations using data from the FioCruz platform. Descriptive and inferential analyses, including time series and ARIMA regression, were employed. Economic dimensions were assessed using cost categorization. The study followed STROBE reporting guidelines. RESULTS Data on 81,942 pediatric SCD hospitalizations were collected, with a predominance of crisis-related cases (74.08 %). Males and children under five years old were most affected. Regional disparities were observed, with the Southwest region recording the highest hospitalization rates. ICU costs were higher for crisis-related hospitalizations. Mortality rates were significantly higher for crisis-related cases (p < 0.001), with ARIMA regression indicating a significant association between hospitalizations for crisis-related cases and mortality. CONCLUSION This study highlights the significant burden of pediatric SCD in Brazil, particularly crisis-related cases, suggesting a need for focused interventions. By prioritizing early detection, equitable access to healthcare, and evidence-based interventions, Brazil can mitigate the burden of SCD and improve patient outcomes. These findings contribute to informing public health policies and interventions aimed at addressing the challenges of pediatric SCD management in Brazil.
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Affiliation(s)
- Luiza Telles
- Instituto de Educação Médica (IDOMED/Estácio, Campus Vista Carioca), Rio de Janeiro, RJ, Brazil.
| | | | | | | | | | - Ayla Gerk
- Harvard Medical School, Program in Global Surgery and Social Change, Boston, United States; McGill University, Department of Surgical and Interventional Sciences, Quebec, Canada; Montreal Children's Hospital, Harvey E. Beardmore Division of Pediatric Surgery, Quebec, Canada
| | - Madeleine Carroll
- Harvard Medical School, Program in Global Surgery and Social Change, Boston, United States
| | - Cristina Pires Camargo
- Faculdade de Medicina, Universidade de São Paulo, Microcirurgia Laboratorial e Cirurgia Plástica, São Paulo, SP, Brazil
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Hernigou P, Homma Y, Hernigou J, Flouzat Lachaniette CH, Rouard H, Verrier S. Mesenchymal Stem Cell Therapy for Bone Repair of Human Hip Osteonecrosis with Bilateral Match-Control Evaluation: Impact of Tissue Source, Cell Count, Disease Stage, and Volume Size on 908 Hips. Cells 2024; 13:776. [PMID: 38727312 PMCID: PMC11083454 DOI: 10.3390/cells13090776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 04/22/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
We investigated the impact of mesenchymal stem cell (MSC) therapy on treating bilateral human hip osteonecrosis, analyzing 908 cases. This study assesses factors such as tissue source and cell count, comparing core decompression with various cell therapies. This research emphasizes bone repair according to pre-treatment conditions and the specificities of cell therapy in osteonecrosis repair, indicating a potential for improved bone repair strategies in hips without femoral head collapse. This study utilized a single-center retrospective analysis to investigate the efficacy of cellular approaches in the bone repair of osteonecrosis. It examined the impact on bone repair of tissue source (autologous bone marrow concentrate, allogeneic expanded, autologous expanded), cell quantity (from none in core decompression alone to millions in cell therapy), and osteonecrosis stage and volume. Excluding hips with femoral head collapse, it focused on patients who had bilateral hip osteonecrosis, both pre-operative and post-operative MRIs, and a follow-up of over five years. The analysis divided these patients into seven groups based on match control treatment variations in bilateral hip osteonecrosis, primarily investigating the outcomes between core decompression, washing effect, and different tissue sources of MSCs. Younger patients (<30 years) demonstrated significantly better repair volumes, particularly in stage II lesions, than older counterparts. Additionally, bone repair volume increased with the number of implanted MSCs up to 1,000,000, beyond which no additional benefits were observed. No significant difference was observed in repair outcomes between different sources of MSCs (BMAC, allogenic, or expanded cells). The study also highlighted that a 'washing effect' was beneficial, particularly for larger-volume osteonecrosis when combined with core decompression. Partial bone repair was the more frequent event observed, while total bone repair of osteonecrosis was rare. The volume and stage of osteonecrosis, alongside the number of injected cells, significantly affected treatment outcomes. In summary, this study provides comprehensive insights into the effectiveness and variables influencing the use of mesenchymal stem cells in treating human hip osteonecrosis. It emphasizes the potential of cell therapy while acknowledging the complexity and variability of results based on factors such as age, cell count, and disease stage.
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Affiliation(s)
- Philippe Hernigou
- Orthopedic Department, University Paris East, Hopital Henri Mondor, 94000 Creteil, France;
| | - Yasuhiro Homma
- Department of Orthopaedics, Faculty of Medicine, Juntendo University, Bunkyo-ku, Tokyo 113-8421, Japan;
| | - Jacques Hernigou
- Department of Orthopaedic Surgery and Traumatology, EpiCURA Baudour Hornu Ath Hospital, 7331 Hainaut, Belgium;
| | | | - Helène Rouard
- Établissement Français du Sang, University Paris East, 94000 Creteil, France;
| | - Sophie Verrier
- AO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos, Switzerland;
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Barros GDS, Leal CVF, Leite LAC, Fujimoto DE, Cançado RD. Real-world evidence of the burden of sickle cell disease: a 5-year longitudinal study at a Brazilian reference center. Hematol Transfus Cell Ther 2024; 46:161-166. [PMID: 38307824 DOI: 10.1016/j.htct.2023.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 09/15/2023] [Accepted: 10/14/2023] [Indexed: 02/04/2024] Open
Abstract
INTRODUCTION Sickle cell disease (SCD) is an inherited and multisystem blood disorder characterized by hemolytic anemia, vaso-occlusive crises (VOCs), progressive multiorgan damage and increased mortality. In Brazil, it is one of the most common monogenic diseases afflicting 60,000 to 100,000 individuals, however, there are sparse epidemiological data, as well as information on the utilization of public healthcare resources. METHOD This was a 5-year (2016 - 2020) retrospective study conducted at one Brazilian reference center on SCD - Santa Casa de Sao Paulo, in Sao Paulo, Brazil. RESULTS Among a total of 100 eligible adult patients, the median age was 31.0 years old, 84% of the patients were aged between 18 and 45 years old; 59% were women and 91% presented the genotype HbSS. The number of hematologist and non-hematologist visits at the outpatient unit were 2,198 and 1,436, respectively. The number of hospital ER visits was 758, of which 51% required 864 days of hospitalization. The main cause for seeking hospital medical care was the VOCs. The numbers and ratios of VOCs were: 1 to 10 VOCs, 64%; 11 to 20, 15%, and; 21 or more, 1%. There was a statistically significant difference between the number of VOCs and hospitalizations, as well as infection. CONCLUSION Results indicate the burden of SCD on Brazilian patients' daily lives, the impact of VOCs on public healthcare resources, the importance of having a national surveillance program to improve resource utilization and clinical outcomes of patients with SCD and the urgent need for the revitalizing of the current national comprehensive SCD care programs.
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Affiliation(s)
| | | | | | - Denys Eiti Fujimoto
- Faculdade de Ciências Médicas da Santa Casa de São Paulo, São Paulo, SP, Brazil
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MacEwan SR, Chiang C, O’Brien SH, Creary S, Lin CJ, Hyer JM, Cronin RM. Comparing super-utilizers and lower-utilizers among commercial- and Medicare-insured adults with sickle cell disease. Blood Adv 2024; 8:224-233. [PMID: 37991988 PMCID: PMC10805643 DOI: 10.1182/bloodadvances.2023010813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 11/15/2023] [Accepted: 11/15/2023] [Indexed: 11/24/2023] Open
Abstract
ABSTRACT Sickle cell disease (SCD) is a rare but costly condition in the United States. Super-utilizers have been defined as a subset of the population with high health care encounters or expenditures. Although super-utilizers have been described in other disease states, little is known about super-utilizers among adults with SCD. This study aimed to characterize the differences in expenditures, overall health care encounters, and pain episode encounters between super-utilizers (top 10% expenditures) and lower-utilizers with SCD (high, top 10%-24.9%; moderate, 25%-49.9%; and low, bottom 50% expenditures). A retrospective longitudinal cohort of adults with SCD were identified using validated algorithms in MarketScan and Medicare claim databases from 2016 to 2020. Encounters and expenditures were analyzed from inpatient, outpatient, and emergency department settings. Differences in encounters and expenditures between lower-utilizers and super-utilizers were compared using logistic regression. Among super-utilizers, differences in encounters and expenditures were compared according to incidences of pain episode encounters. The study population included 5666 patients with commercial insurance and 8600 with Medicare. Adjusted total annual health care expenditure was 43.46 times higher for super-utilizers than for low-utilizers among commercial-insured and 13.37 times higher in Medicare-insured patients. Among super-utilizers, there were patients with few pain episode encounters who had higher outpatient expenditures than patients with a high number of pain episode encounters. Our findings demonstrate the contribution of expensive outpatient care among SCD super-utilizers, in which analyses of high expenditure have largely focused on short-term care. Future studies are needed to better understand super-utilizers in the SCD population to inform the effective use of preventive interventions and/or curative therapies.
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Affiliation(s)
- Sarah R. MacEwan
- Division of General Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
- Center for the Advancement of Team Science, Analytics, and Systems Thinking, College of Medicine, The Ohio State University, Columbus, OH
| | - ChienWei Chiang
- Department of Biomedical Informatics, College of Medicine, The Ohio State University, Columbus, OH
- Secondary Data Core, Center for Clinical and Translational Science, The Ohio State University, Columbus, OH
| | - Sarah H. O’Brien
- Center for Child Health Equity and Outcomes Research, Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH
| | - Susan Creary
- Center for Child Health Equity and Outcomes Research, Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH
| | | | - J. Madison Hyer
- Secondary Data Core, Center for Clinical and Translational Science, The Ohio State University, Columbus, OH
- Center for Biostatistics, College of Medicine, The Ohio State University, Columbus, OH
| | - Robert M. Cronin
- Division of General Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
- Center for the Advancement of Team Science, Analytics, and Systems Thinking, College of Medicine, The Ohio State University, Columbus, OH
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Valete COS, Angelica Luiz Ferreira E, Montenegro CP, Pilati MCA, Rodrigues Wilde MOD, Witkowski SM. Frequency of red blood cell transfusions in preterm neonates in Brazil: A systematic review and meta-analysis. Vox Sang 2024; 119:8-15. [PMID: 37920102 DOI: 10.1111/vox.13553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/11/2023] [Accepted: 10/08/2023] [Indexed: 11/04/2023]
Abstract
BACKGROUND AND OBJECTIVES Red blood cell transfusions are frequent in preterm neonates. The proportion of preterm neonates transfused in Brazil remains unknown. We systematically reviewed the literature to estimate the frequency of red blood cell transfusions in preterm neonates in Brazil. MATERIALS AND METHODS The LILACS, EMBASE, Cochrane, SciELO, MEDLINE (PubMed), Web of Science, Scopus, BDTD and 27 national university institutional databases were searched for studies that analysed red blood cell transfusion in preterm neonates in Brazil without period restriction. The Preferred Reporting Items in Systematic Reviews and Meta-Analyses guidelines were followed, and the GRADE methodology was applied. A random-effects model along with the restricted maximum likelihood method was used, and the Freeman-Tukey transformed proportion was used to estimate effect size. RESULTS Nine studies, representing 6548 preterm neonates, were included in the qualitative and quantitative analyses. The mean gestational age ranged from 26.0 to 31.6 weeks. Most of the studies were from the Southeast region. The pooled estimated frequency of red blood cell transfusions was 58.0% (95% confidence interval = 52.0%-64.0%, p < 0.001) with low certainty. There was statistically significant heterogeneity among studies (I2 = 92.5%, p < 0.001). CONCLUSION In this current meta-analysis of the evidence available, which included moderate and extremely preterm neonates, the observed frequency of red blood cell transfusions in preterm neonates in Brazil was 58.0% and this estimate can help health programming. Some Brazilian regions were not included in this study, and further research is needed to provide a more representative overview of Brazil.
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Affiliation(s)
| | | | - Carolina Perez Montenegro
- Medicine Department (DMed), Federal University of São Carlos (UFSCar), São Carlos, São Paulo, Brazil
| | - Maria Clara Alves Pilati
- Medicine Department (DMed), Federal University of São Carlos (UFSCar), São Carlos, São Paulo, Brazil
| | | | - Sandra Mara Witkowski
- Department of Pediatrics, University of Vale do Itajaí, Itajaí, Santa Catarina, Brazil
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Silva CSS, Bensenor IM, Goulart AC, Lotufo PA, Santos IS. Anaemia and its causes at the Brazilian Longitudinal Study of Adult Health: a cross-sectional analysis of baseline data. Fam Pract 2023:cmad102. [PMID: 37951231 DOI: 10.1093/fampra/cmad102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2023] Open
Abstract
BACKGROUND Most anaemia studies focus on children and women of childbearing age. We assessed the frequency and main aetiologies of anaemia according to sociodemographic characteristics at the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil), a cohort of middle-aged adults. METHODS The primary analyses included 15,051 participants aged 35-74 years with a valid blood cell count. We built logistic models to analyse the association between socioeconomic characteristics and anaemia diagnosis. We also described the main aetiologies in a subset (n = 209) of participants with anaemia. RESULTS Anaemia was present in 3.0% (95% confidence interval [95%CI]: 2.6-3.4%) of men and 7.4% (95%CI: 6.9-8.0%) of women. The frequency of anaemia diagnosis was higher in women in all subgroups except for the oldest age stratum (65-74 years). The frequency of anaemia was particularly high in Blacks (6.0% and 15.5% in men and women, respectively). The most common causes of anaemia were iron deficiency (in women), chronic kidney disease, and chronic inflammation (in men). The frequency of unexplained anaemia was respectively 33.3% and 34.2% for men and women, and this condition was more frequent among participants of Black or Mixed races. CONCLUSIONS Anaemia was associated with age, female sex, Black race, and low socioeconomic status. Unexplained anaemia was common and more frequent in individuals of Black and Mixed races. ELSA-Brasil follow-up data may provide further insight into the relevance of unexplained anaemia in this setting.
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Affiliation(s)
- Cássia S S Silva
- Programa de Pós-Graduação em Ciências Médicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Centro de Pesquisa Clínica e Epidemiológica, Hospital Universitário da Universidade de São Paulo, São Paulo, Brazil
| | - Isabela M Bensenor
- Centro de Pesquisa Clínica e Epidemiológica, Hospital Universitário da Universidade de São Paulo, São Paulo, Brazil
- Departamento de Clínica Médica, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Alessandra C Goulart
- Centro de Pesquisa Clínica e Epidemiológica, Hospital Universitário da Universidade de São Paulo, São Paulo, Brazil
- Departamento de Epidemiologia, Faculdade de Saúde Pública da Universidade de São Paulo, São Paulo, Brazil
| | - Paulo A Lotufo
- Centro de Pesquisa Clínica e Epidemiológica, Hospital Universitário da Universidade de São Paulo, São Paulo, Brazil
- Departamento de Clínica Médica, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Itamar S Santos
- Centro de Pesquisa Clínica e Epidemiológica, Hospital Universitário da Universidade de São Paulo, São Paulo, Brazil
- Departamento de Clínica Médica, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
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Azevedo-Silva F. Lipids and Sickle Cell Disease. INTERNATIONAL JOURNAL OF CARDIOVASCULAR SCIENCES 2022. [DOI: 10.36660/ijcs.20220169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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