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Omena J, Voll VM, Bezerra FF, Braz BF, Santelli RE, Donangelo CM, Jauregui GF, Ribeiro AS, Cople Rodrigues CDS, Citelli M. Iron incorporation in red blood cells of pediatric sickle cell anemia: a stable isotope pilot investigation. Eur J Clin Nutr 2024; 78:801-807. [PMID: 38909172 DOI: 10.1038/s41430-024-01465-1] [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: 12/12/2023] [Revised: 06/11/2024] [Accepted: 06/12/2024] [Indexed: 06/24/2024]
Abstract
BACKGROUND/OBJECTIVES Sickle cell anemia (SCA) is marked by hypoxia, inflammation, and secondary iron overload (IO), which potentially modulate hepcidin, the pivotal hormone governing iron homeostasis. The aim was to evaluate the iron incorporation in red blood cells (RBC) in SCA pediatric patients, considering the presence or absence of IO. SUBJECTS/METHODS SCA children (n = 12; SCAtotal) ingested an oral stable iron isotope (57Fe) and iron incorporation in RBC was measured after 14 days. Patients with ≥1000 ng/mL serum ferritin were considered to present IO (SCAio+; n = 4) while the others were classified as being without IO (SCAio-; n = 8). Liver iron concentration (LIC) was determined by Magnetic Resonance Imaging (MRI) T2* method. RESULTS The SCAio+ group had lower iron incorporation (mean ± SD: 0.166 ± 0.04 mg; 3.33 ± 0.757%) than SCAio- patients (0.746 ± 0.303 mg; 14.9 ± 6.05%) (p = 0.024). Hepcidin was not different between groups. Iron incorporation was inversely associated with serum ferritin level (SCAtotal group: r = -0.775, p = 0.041; SCAio- group: r = -0.982; p = 0.018) and sickle hemoglobin (HbS) presented positive correlation with iron incorporation (r = 0.991; p = 0.009) in SCAio- group. LIC was positively associated with ferritin (SCAtotal: r = 0.921; p = 0.026) and C reactive protein (SCAio+: r = 0.999; p = 0.020). CONCLUSION SCAio+ group had lower iron incorporation in RBC than SCAio- group, suggesting that they may not need to reduce their intake of iron-rich food, as usually recommended. Conversely, a high percentage of HbS may indirectly exacerbate hypoxia and seems to increase iron incorporation in RBC. TRIAL REGISTRATION This trial was registered at www.ensaiosclinicos.gov.br . Identifier RBR-4b7v8pt.
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Affiliation(s)
- Juliana Omena
- Nutrition Institute, Rio de Janeiro State University, Rio de Janeiro, Brazil.
| | | | | | - Bernardo Ferreira Braz
- Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- National Institute of Science & Technology of Bioanalytics (INCTBio), Campinas, Brazil
| | - Ricardo Erthal Santelli
- Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- National Institute of Science & Technology of Bioanalytics (INCTBio), Campinas, Brazil
| | | | | | | | | | - Marta Citelli
- Nutrition Institute, Rio de Janeiro State University, Rio de Janeiro, Brazil.
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Alkindi S, Al-Jadidi S, Al-Adawi S, Elsadek RA, Al Madhani A, Al-Nabhani M, Pathare AV. Multi-center study on mortality in children, and adults with sickle cell anemia-risk factors and causes of death. Sci Rep 2024; 14:8584. [PMID: 38615021 PMCID: PMC11016086 DOI: 10.1038/s41598-024-58328-9] [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: 06/20/2023] [Accepted: 03/27/2024] [Indexed: 04/15/2024] Open
Abstract
Sickle cell disease (SCD) is a major public health burden worldwide with increasing morbidity and mortality. The study evaluates the risk factors associated with mortality in SCD patients, between the years 2006 and 2020 at three hospitals in Oman. The analysis includes clinical manifestations, haematological, biochemical, and radiological parameters, use of antibiotics, and blood and exchange transfusions. Our cohort included 123 patients (82 males, 41 females), with a median age of 27 (Interquartile Range 21-35 years). SCD related complications included acute chest syndrome (ACS) in 52.8%, splenic sequestration in 21.1%, right upper quadrant syndrome in 19.5%, more than > 6 VOC/year in 17.9%, and stroke in 13.8%. At the terminal admission, patients had cough, reduced O2 saturation, crepitation and fever in 24.4%, 49.6%, 53.6% and 68.3% respectively. Abnormal chest X-ray and chest CT scan were seen in 57.7%, and 76.4% respectively. Laboratory parameters showed a significant drop in hemoglobin (Hb) and platelet counts from baseline, with a significant rise in WBC, LDH and CRP from baseline (p < 0.05, Wilcoxon Signed Ranks test). All patients received antibiotics, whereas, 95.9% and 93.5% received simple blood transfusions, and exchange transfusions respectively, and 66.6% required non-invasive ventilation. Among the causes of death, ACS is seen in 32 (26%), sepsis in 49 (40%), and miscellaneous in 42 (34%). Sudden death was seen in 32 (26%) of patients. Male gender, with low HbF, rapid drop in Hb and platelet, and increased in WBC, LDH, ferritin, and CRP, correlated significantly with mortality in this cohort.
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Affiliation(s)
- Salam Alkindi
- Department of Haematology, College of Medicine and Health Sciences, Sultan Qaboos University, P. O. Box 35, 123, Muscat, Oman.
| | - Salma Al-Jadidi
- Department of Haematology, College of Medicine and Health Sciences, Sultan Qaboos University, P. O. Box 35, 123, Muscat, Oman
| | - Safa Al-Adawi
- Department of Haematology, College of Medicine and Health Sciences, Sultan Qaboos University, P. O. Box 35, 123, Muscat, Oman
| | | | | | | | - Anil V Pathare
- Department of Haematology, College of Medicine and Health Sciences, Sultan Qaboos University, P. O. Box 35, 123, Muscat, Oman
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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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Azinge IE, Ogunyemi A, Ogamba CF, Jimoh RO. Prevalence of anemia and associated factors among adults in a select population in Lagos, Southwest Nigeria. J Public Health Afr 2023; 14:2224. [PMID: 37347070 PMCID: PMC10280247 DOI: 10.4081/jphia.2023.2224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 08/08/2022] [Indexed: 06/23/2023] Open
Abstract
Background Anemia is a public health problem affecting people in both the developed and developing world and has serious consequences on health. Objective This study determines the prevalence of anemia amongst people of different socioeconomic levels, associated factors, and the prevalence of anemia in populations other than children or pregnant women. Methods This is a descriptive cross-sectional study using a pretested interviewer-administered questionnaire to collect data from 387 residents. A multi-stage random sampling technique was used. Analysis of blood samples using the HemoCue301 system and data analysis using SPSS 20. Chi-square test and binary logistic regression were used to test association and determine predictors of anemia respectively, with P<0.05 considered statistically significant. Results The mean age of respondents was 35±11.8 years, with 28.9% of respondents being anemic. Female respondents (52.7%) were more than male respondents (47.3%). Female respondents (39.2%) had a higher prevalence of anemia than male respondents (17.5%). There was a significant association between sex, level of education, and anemia status. Being female, having no formal education, or only having a primary school level of education were significant predictors of anemia [odds ratio (OR)=2.55; 95% confidence interval (CI)=1.54, 4.23; P=0.00; OR=12.57; 95%CI=2.39, 66.27; P=0.00; and OR=2.54; 95%CI=1.16, 5.58; P=0.02 respectively]. Conclusion There was a higher prevalence of anemia among women, younger people, and those with no or only primary levels of formal education. Awareness programs targeted at women and people with lower levels of education are necessary to reduce the overall prevalence of anemia in this region.
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Affiliation(s)
- Ifeoma Elaine Azinge
- Department of Community Health and Primary Care, College of Medicine, University of Lagos
| | - Adedoyin Ogunyemi
- Department of Community Health and Primary Care, College of Medicine, University of Lagos
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Nascimento DCD, Santos GC, Soares SSS, Farias SNPD, Garcia LR, Lima LDSCD, Parreira PMSD, Souza NVDDO. Repercussions of sickle cell disease and sickle cell ulcers for men inserted in the world of work. Rev Esc Enferm USP 2023; 57:e20220384. [PMID: 37130427 PMCID: PMC10154050 DOI: 10.1590/1980-220x-reeusp-2022-0384en] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 03/01/2023] [Indexed: 05/04/2023] Open
Abstract
OBJECTIVE To analyze the repercussions of sickle cell disease and sickle cell ulcer for men in the world of work and discuss the challenges faced to remain in the work environment. METHOD A qualitative study, developed at the dressing clinic and at a stomatherapy clinic. Twenty men with sickle cell disease and sickle cell ulcer participated, applying a semi-structured interview script. The software Interface de R pour les Analyses Multidimensionnelles de Textes et de Questionnaires was used for treatment and lexical data analysis. RESULTS The Descending Hierarchical Classification enabled the creation of classes: Man with sickle cell disease and sickle cell ulcer: experiences and repercussions; and Coping measures adopted by men with sickle cell disease and sickle cell ulcer to stay at work. CONCLUSION Disease and injury repercussions involve biopsychosocial dimensions, highlighting the need for professional training to assist with competence and humanity. Strategies adopted to maintain work are breaks in the working day, use of analgesics to relieve pain, allocating time during work to apply dressings.
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Affiliation(s)
| | | | | | | | - Luana Ramos Garcia
- Universidade do Estado do Rio de Janeiro, Faculdade de Enfermagem, Rio de Janeiro, RJ, Brasil
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Cordovil K, Crivelli M, Calixto Lima L, S. Barbosa F, Fleury M. Predictive Equations Overestimated the Rest Energy Expenditure by Indirect Calorimetry in Adults with Sickle Cell Disease. THE NORTH AFRICAN JOURNAL OF FOOD AND NUTRITION RESEARCH 2022; 6:94-106. [DOI: 10.51745/najfnr.6.14.94-106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 06/17/2022] [Indexed: 08/05/2024]
Abstract
Background: Traditionally, hypermetabolism is described in sickle cell disease (SCD). Despite this, few studies have compared rest energy expenditure (REE) with estimated by predictive equations (EEE) in the assessment of adults with SCD. Aims: To compare REE values determined by indirect calorimetry (IC) with that EEE in adults with SCD. Subjects and Methods: A cross-sectional observational study was performed with 46 individuals over 34 years old in the treatment from two reference centers for SCD located in the city of Rio de Janeiro, Brazil. The dual-energy X-ray absorptiometry (DXA) and IC were used to assess BC and REE, respectively. Blood levels were measured to assess hemolytic and protein markers. Pearson’s correlation test was used in the univariate correlation. The Intraclass Correlation Coefficient (ICC) and the Bland-Altman analysis were used in the comparison between EEE and IC. P-values ≤ 0.05 were considered statistically significant. Results: Most participants were from the female sex, Hb SS genotype (80.4%) and with black color (52.2%). The mean age was 50 years old. Weight (r= 0.469; p=0,001), LM (r = 0.631; p=0.000), BMC (r = 0.508; p=0.000) and CRP(r=0.319; p = 0.002) correlated positively with the REE. There was no linear correlation between makers of hemolysis with REE. The REE was overestimated in the EEE when compared to IC (p<0.001). Conclusions: The prediction equations developed for healthy populations are not accurate enough to determine the energy requirements and more studies are needed to better understand how REE role in middle-aged and elderly adults with SCD.
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Sickle Cell Disease in Bahia, Brazil: The Social Production of Health Policies and Institutional Neglect. SOCIETIES 2022. [DOI: 10.3390/soc12040108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A disease is considered neglected when it is not given due priority in health policies despite the social relevance of that disease, either in terms of the number of individuals affected by it or its morbidity or mortality. Although the causes are structural, neglect in health does not occur in a vacuum. In this paper, we explore how sickle cell disease (SCD) is constructed and neglected in Brazil, based on insights from our long-term participatory qualitative research in the state of Bahia. We present five overarching themes relevant to the social production of SCD, and associated health policies in Brazil: (1) The achievements and setbacks to overcome neglect in SCD, (2) Continuity of comprehensive SCD care; (3) Social movements of people with SCD; (4) Biocultural citizenship; and (5) Academic advocacy. We conclude that it is insufficient to merely recognize the health inequities that differentiate white and black populations in Brazil; racism must be understood as both a producer and a reproducer of this process of neglect. We conclude with a set of recommendations for the main SCD stakeholder groups committed to improving the lives of people living with SCD.
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Silva-Pinto AC, Costa FF, Gualandro SFM, Fonseca PBB, Grindler CM, Souza Filho HCR, Bueno CT, Cançado RD. Economic burden of sickle cell disease in Brazil. PLoS One 2022; 17:e0269703. [PMID: 35709301 PMCID: PMC9202914 DOI: 10.1371/journal.pone.0269703] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 05/25/2022] [Indexed: 11/26/2022] Open
Abstract
Background Sickle cell disease (SCD) may cause several impacts to patients and the whole society. About 4% of the population has the sickle cell trait in Brazil, and 60,000 to 100,000 have SCD. However, despite recognizing the significant burden of disease, little is known about SCD costs. Objective To estimate SCD societal costs based on disease burden modelling, under Brazilian societal perspective. Methods A disease burden model was built considering the societal perspective and a one-year time horizon, including direct medical and indirect costs (morbidity and mortality). The sum of life lost and disability years was considered to estimate disability-adjusted life years (DALYs). Data from a public database (DATASUS) and the prevalence obtained from literature or medical experts were used to define complications prevalence and duration. Costs were defined using data from the Brazilian public healthcare system table of procedures and medications (SIGTAP) and the human capital method. Results Annual SCD cost was 413,639,180 USD. Indirect cost accounted for the majority of burden (70.1% of the total; 290,158,365 USD vs 123,480,816 USD). Standard of care and chronic complications were the main source of direct costs among adults, while acute conditions were the main source among children. Vaso-occlusive crisis represented the complication with the highest total cost per year in both populations, 11,400,410 USD among adults and 11,510,960 USD among children. Conclusions SCD management may impose an important economic burden on Brazilian society that may reach more than 400 million USD per year.
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Affiliation(s)
- Ana Cristina Silva-Pinto
- Regional Blood Center, Ribeirão Preto School of Medicine, University of São Paulo, São Paulo, Brazil
- Department of Medical Imaging, Hematology, and Oncology, Ribeirão Preto School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Fernando F. Costa
- School of Medical Sciences, University of Campinas, Campinas, SP, Brazil
| | | | | | - Carmela Maggiuzzu Grindler
- Department of Technical Area of Neonatal, São Paulo State Health Department: Secretaria da Saude do Estado de Sao Paulo, São Paulo, Brazil
| | | | | | - Rodolfo D. Cançado
- Department of Hematology/Oncology, Santa Casa Medical School of Sao Paulo, Sao Paulo, Brazil
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Liver Transplantation After Hematopoietic Stem Cell Transplant for the Treatment of Sickle Cell Disease: A Case Report. Transplant Proc 2022; 54:1394-1397. [PMID: 35659126 DOI: 10.1016/j.transproceed.2022.03.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 03/13/2022] [Indexed: 11/23/2022]
Abstract
Sickle cell anemia is the most common of the hemoglobinopathies, in which the abnormal hemoglobin formed in deoxygenation states undergoes a polymerization process with consequent erythrocyte deformation and vaso-occlusive events. The need for multiple blood transfusions, prolonged ineffective erythropoiesis, hemolysis, and increased iron absorption can cause iron overload in the liver, leading to liver fibrosis. Hematopoietic stem cell transplantation (HSCT) is currently the only treatment with a curative potential for this disease and can establish normal complete or partial donor-derived erythropoiesis and stabilize or restore function in affected organs, preventing further deterioration of function. However, it does not reverse preexisting liver fibrosis and siderosis. One of the possible complications of patients who undergo HSCT is chronic liver disease, which has a multifactorial cause, with iron overload being an important factor. In the long term, the prevalence of chronic liver disease in HSCT patients, including cirrhosis and its complications, can be significant. Solid organ transplantation after allogeneic hematopoietic cell transplantation for end-organ failure remains a very rare event. It may offer a valuable treatment strategy in selected recipients, although it is associated with significant morbidity and mortality. We report the case of a patient with sickle cell anemia who underwent HSCT and developed severe liver dysfunction requiring liver transplantation 13 years after the procedure. We found no previous report in the literature of orthotopic liver transplant after HCT for the treatment of sickle cell disease.
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Pompeo CM, Ferreira Júnior MA, Cardoso AIDQ, Souza MDC, Frota OP, Mota FM, Ivo ML. Clinical-Epidemiological Characteristics and Mortality in Patients with Sickle Cell Anemia: A Retrospective Cohort Study of 1980 at 2018. Int J Gen Med 2022; 15:1057-1074. [PMID: 35140508 PMCID: PMC8818769 DOI: 10.2147/ijgm.s342971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/07/2021] [Indexed: 01/09/2023] Open
Abstract
PURPOSE To analyze the clinical-epidemiological characteristics and mortality in patients with sickle-cell anemia (SCA). PATIENTS AND METHODS A cohort study with retrospective data, conducted in two reference hospitals for SCA treatment from January 1980 to December 2018, recorded in two reference services. With a 5% significance level, the Chi-Square and Student's t-tests were employed in the inferential statistical analysis. RESULTS A total of 128 patients with SCA were studied. Diagnosis up to the fifth day of life was made in 10 patients. There were 19 deaths, of which 12 (63.2%) were female, and the average age at death was 27.05 (± 14.78) years. The leading causes of death were septic shock and cardiogenic shock. The use of invasive medical devices was considered a risk factor for death (RR=2.63; 95% CI=1.16-5.96; p=0.018), and monitoring time up to 20 years presented a 31% reduction in the risk of dying (RR=0.31; 95% CI=0.12-0.82; p=0.011) when compared to the monitoring of more than 20 years. CONCLUSION These findings are to be considered in the treatment of patients with SCA, mainly regarding early diagnosis and access to the treatment immediately afterward, since they are fundamental in improving survival and reducing severe complications.
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Affiliation(s)
- Carolina Mariano Pompeo
- Integrated Institute of Health, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | | | | | - Mercy da Costa Souza
- Graduate Program in Health and Development in the Midwest Region, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Oleci Pereira Frota
- Integrated Institute of Health, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Felipe Machado Mota
- Integrated Institute of Health, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Maria Lúcia Ivo
- Graduate Program in Health and Development in the Midwest Region, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
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Oliveira CDM, Soares VJ, Rechenmacher C, Daudt LE, Michalowski MB. From H1N1 to COVID-19: What we have seen in children with hemoglobinopathies. Clinics (Sao Paulo) 2022; 77:100004. [PMID: 35113785 PMCID: PMC8801343 DOI: 10.1016/j.clinsp.2021.100004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 11/01/2021] [Indexed: 11/28/2022] Open
Abstract
This work aimed to better understand the impact of pandemics of respiratory viruses on children with hemoglobinopathies through a comprehensive review of the literature. MEDLINE, SCIELO, LILACS, and PUBMED were used as data sources to find articles without time period restrictions. Previous observations suggest that patients with hemoglobinopathies are a group especially susceptible to the complications of viral respiratory infections, with greater morbidity and mortality related to them. Within this context, this review found that, during the 2009 H1N1 pandemic, the risk of hospitalization in children and adults increased, especially in patients with a history of complications such as acute chest syndrome. In addition, the Coronavirus Disease 2019 (COVID-19) pandemic appears to have less repercussion among children with hemoglobinopathies compared to adults, similar to what is seen in the general population. In the H1N1 pandemic, patients with hemoglobinopathies behaved as a group more susceptible to complications, with increased morbidity and mortality. However, for COVID-19, the existing data to date on these patients do not show the same clinical impact. Thus, although these children deserve attention in case of infection due to their potential risks, they seem to have a favorable evolution.
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Affiliation(s)
- Claudia de Melo Oliveira
- Programa de Pós-Graduação em Saúde da Criança e do Adolescente, Departamento de Pediatria, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
| | | | - Ciliana Rechenmacher
- Programa de Pós-Graduação em Saúde da Criança e do Adolescente, Departamento de Pediatria, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Laboratório de Pediatria Translacional, Serviço de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Liane Esteves Daudt
- Programa de Pós-Graduação em Saúde da Criança e do Adolescente, Departamento de Pediatria, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Laboratório de Pediatria Translacional, Serviço de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Unidade de Hematologia e Transplante de Medula Óssea Pediátrica, Serviço de Hematologia Clínica, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Mariana Bohns Michalowski
- Programa de Pós-Graduação em Saúde da Criança e do Adolescente, Departamento de Pediatria, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Laboratório de Pediatria Translacional, Serviço de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Serviço de Oncologia Pediátrica, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
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Mota FM, Ferreira Júnior MA, Cardoso AIDQ, Pompeo CM, Frota OP, Tsuha DH, Souza ASD. Analysis of the temporal trend of mortality from sickle cell anemia in Brazil. Rev Bras Enferm 2022; 75:e20210640. [DOI: 10.1590/0034-7167-2021-0640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 12/11/2021] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT Objectives: To analyze the temporal trend of mortality from sickle cell anemia in Brazil, by region, in the period 1997-2017. Methods: epidemiological study, with an ecological design, with a temporal trend, carried out with data from the Mortality Information System. For descriptive analysis, absolute and relative frequencies were used. In the correlation analysis, the ANOVA test was used, followed by Tukey’s post-test. The temporal trend was obtained using the cubic polynomial regression test. Results: 6,813 deaths from sickle cell anemia were registered. Brown individuals (50.87%) were more frequent, with a predominance of males (50.4%), aged between 25 and 34 years and a higher incidence of deaths in the Midwest (0.25/100 thousand inhabitants). The time curve showed an increasing trend of deaths in the country between 1997 and 2015 (R2 = 0.98). Conclusions: sickle cell anemia showed increasing mortality in the 21 years analyzed and alerts health professionals and managers.
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American Society of Hematology 2021 guidelines for sickle cell disease: stem cell transplantation. Blood Adv 2021. [PMID: 34581773 DOI: 10.1182/bloodadvances.2021004394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023] Open
Abstract
BACKGROUND Sickle cell disease (SCD) is a life-limiting inherited hemoglobinopathy that results in significant complications and affects quality of life. Hematopoietic stem cell transplantation (HSCT) is currently the only curative intervention for SCD; however, guidelines are needed to inform how to apply HSCT in clinical practice. OBJECTIVE These evidence-based guidelines of the American Society of Hematology (ASH) are intended to support patients, clinicians, and health professionals in their decisions about HSCT for SCD. METHODS The multidisciplinary guideline panel formed by ASH included 2 patient representatives and was balanced to minimize potential bias from conflicts of interest. The Mayo Evidence-Based Practice Research Program supported the guideline development process, including performing systematic evidence reviews (through 2019). The panel prioritized clinical questions and outcomes according to their importance for clinicians and patients. The panel used the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach, including GRADE Evidence-to-Decision frameworks, to assess evidence and make recommendations, which were subject to public comment. RESULTS The panel agreed on 8 recommendations to help patients and providers assess how individuals with SCD should consider the timing and type of HSCT. CONCLUSIONS The evidence review yielded no randomized controlled clinical trials for HSCT in SCD; therefore, all recommendations are based on very low certainty in the evidence. Key recommendations include considering HSCT for those with neurologic injury or recurrent acute chest syndrome at an early age and to improve nonmyeloablative regimens. Future research should include the development of a robust SCD registry to serve as a comparator for HSCT studies.
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Stroke and stroke prevention in sickle cell anemia in developed and selected developing countries. J Neurol Sci 2021; 427:117510. [PMID: 34077859 DOI: 10.1016/j.jns.2021.117510] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 05/22/2021] [Accepted: 05/24/2021] [Indexed: 02/02/2023]
Abstract
This comprehensive review provides an insight into the pathophysiology, epidemiology, evaluation, and treatment of sickle cell anemia (SCA)-related stroke in developed and developing countries. Vascular injury, hypercoagulability and vaso-occlusion play a role in the pathophysiology of stroke in SCA. Transcranial Doppler ultrasound (TCD) has lowered the incidence of ischemic stroke from 11% to 1% as TCD identifies children who are at risk for stroke, providing opportunities for interventions to reduce this risk. Whereas blood exchange is indicated in acute stroke, chronic transfusions (either simple or exchange on a monthly basis) are used for primary as well as secondary stroke prevention in developed countries. Children with abnormally high TCD velocities (≥ 200 cm/s) are at high risk of stroke and might benefit from hydroxyurea or hydroxycarbamide (HU) after a period of a successful transition from chronic transfusions. Hematopoietic stem cell transplant presents a cure for SCA. Gene therapy is currently investigated and may be offered to patients with SCA who had a stroke or who are at high risk of stroke if proven efficacious and safe. However, gene therapy is not likely to be implemented in low-income countries due to cost. Alternatively, HU is utilized for primary and secondary stroke prevention in developing countries. Further expansion of TCD implementation should be a priority in those settings.
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Opioids are not a major cause of death of patients with sickle cell disease. Ann Hematol 2021; 100:1133-1138. [PMID: 33758998 DOI: 10.1007/s00277-021-04502-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 03/17/2021] [Indexed: 10/21/2022]
Abstract
According to the Center of Disease Control and Prevention (CDC) database, the total number of deaths due to opioid overdose from 1999 through 2018 was 840,629. Given the alarming nature of these statistics, patients who requested prescription for opioids became targets of suspicion and possible accusation of maladaptive behavior. Patients with sickle cell disease (SCD) were often not exempt from such accusations and became guilty by association. In order to clarify the effect of opioids on the mortality of patients with SCD, the mortality rates for children and adults with SCD were investigated using the CDC Wide-ranging Online Data for Epidemiologic Research (WONDER) Multiple Cause of Death database which is based on all the death certificates issued in the USA from 1999 to 2018. The data showed that 15,765 patients with SCD died from 1999 to 2018. Only 348 patients with SCD died due to opioids. The CDC database contains 27 categories of death based on ICD-10 codes in patients with SCD, and opioids were the 19th ranking cause of death. Surprisingly the most common causes of death of patients with SCD included circulatory, infection, respiratory, genitourinary, and vaso-occlusive crises/acute chest syndrome disorders in decreasing frequency. The mean age of death of females was 41.9 years and of males 39.3 years (p < 0.0001). Death due to SCD and death due to SCD and opioids were highest in the Southern Region of the USA.
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Sheshadri V, Shabeer P, Santhirapala V, Jayaram A, Krishnamurti L, Menon N. Mortality in sickle cell disease: A population-based study in an aboriginal community in the Gudalur Valley, Nilgiris, Tamil Nadu, India. Pediatr Blood Cancer 2021; 68:e28875. [PMID: 33381914 DOI: 10.1002/pbc.28875] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/26/2020] [Accepted: 12/04/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Sickle cell disease (SCD), the most common monogenic disorder, affects more than 300 000 births annually, with 44 000 in India. Although the clinical phenotype of SCD is considered to be milder in aboriginal populations in India, there is a paucity of data on outcomes. To determine the severity of SCD in this population, we studied mortality rates and causes of mortality in a longitudinal cohort of patients with SCD in a remote aboriginal community in India receiving community-based comprehensive care. PROCEDURES Causes of death were analyzed in this cohort from January 2008 to December 2018. Details were collected from hospital records and in case of deaths at home by utilizing the WHO verbal autopsy questionnaire. RESULTS The cohort consisted of 157 patients belonging to the Paniya, Betta Kurumba, Kattunyakan, and Mullu Kurumba tribes. During the study period, there were 22 deaths, all from the Paniya tribe. Twelve deaths (54.5%) occurred in the hospital and the remaining at home (45.5%), reflecting a crude mortality rate of 140 per 1000 population. Twenty-five percent of deaths occurred in the 6-18 age group. There were no deaths in the 0-5 age group. The median age of death was 25 years, which was 30 years less than in the non-SCD aboriginal population. The leading causes of death were acute chest syndrome, anemia, and sepsis among the SCD patients and stroke and suicides in the non-SCD aboriginal population. CONCLUSION SCD is a severe disease among the Gudalur Valley's aboriginal population with a significant risk of premature mortality.
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Affiliation(s)
- Veena Sheshadri
- ASHWINI Gudalur Adivasi Hospital, Gudalur, Tamil Nadu, India
| | | | - Vatshalan Santhirapala
- Program in Global Surgery and Social Change, Harvard Medical School/Boston Children's Hospital, Boston, MA, USA
| | - Anusha Jayaram
- Program in Global Surgery and Social Change, Harvard Medical School/Boston Children's Hospital, Boston, MA, USA
| | - Lakshmanan Krishnamurti
- Division of Pediatric Hematology-Oncology-BMT, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Nandakumar Menon
- ASHWINI Gudalur Adivasi Hospital, and Sickle Disease Centre, Gudalur, Tamil Nadu, India
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Santo AH. Sickle cell disease related mortality in Brazil, 2000-2018. Hematol Transfus Cell Ther 2020; 44:177-185. [PMID: 33371971 PMCID: PMC9123563 DOI: 10.1016/j.htct.2020.09.154] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/25/2020] [Accepted: 09/19/2020] [Indexed: 11/17/2022] Open
Abstract
Introduction There is a demand to update national mortality trends data related to sickle cell disease (SCD) in Brazil. This study describes causes of death and mortality issues related to SCD using the multiple-cause-of-death methodology. Methods The annual SCD mortality data was extracted from the public databases of the Mortality Information System by researching deaths in rubric D57 “sickle-cell disorders” of the International Classification of Diseases, Tenth Revision and processed by the Multiple Cause Tabulator. Results From 2000 to 2018 in Brazil, a total of 9817 deaths related to SCD occurred during the 19-year period, as the underlying cause in 6924 (70.5%) and as the associated cause of death in 2893 (29.5%). The mean and median ages at death during the entire period were significantly lower for males, 29.4 (±19.6) and 27.5 (15.5–41.5), respectively, than for females, 33.3 (±20.3) and 31.0 (19.5–46.5), respectively. The leading SCD overall associated causes of death were septicemias (32.1%), followed by pneumonias (19.4%) and respiratory failure (18.2%). On certificates with SCD as an associated cause, the underlying causes of death were circulatory system diseases (8.7%), followed, in males, by digestive system and infectious diseases and respiratory system failures, while in females, maternal deaths, included in the chapter on pregnancy, childbirth and the puerperium, accounting for 4.6% of female deaths, were succeeded by digestive system and infectious diseases. Conclusion This study revised mortality data on death rate trends, underlying and associated causes of death, age at death and regional distribution of death in Brazil.
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Affiliation(s)
- Augusto Hasiak Santo
- Faculdade de Saúde Pública da Universidade de São Paulo (FSP USP), São Paulo, SP, Brazil (retired).
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Roseomonas gilardii Bacteremia in a Patient With HbSβ0-thalassemia: Clinical Implications and Literature Review. J Pediatr Hematol Oncol 2020; 42:e385-e387. [PMID: 30951022 PMCID: PMC7724631 DOI: 10.1097/mph.0000000000001476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Roseomonas gilardii is a Gram-negative coccobacillus identified in immunocompromised pediatric patients. A 5-year-old male with a history of HbSβ thalassemia status postsurgical splenectomy presented to the emergency department with fever. Blood cultures grew R. gilardii at 63 hours, but the patient had been discharged home at 48 hours. The patient was readmitted for repeat cultures and initiated on meropenem for 10 days as Roseomonas spp. are often resistant to third generation cephalosporins. R. gilardii is a rare cause of bacteremia in immunocompromised patients. Clinicians should consider Roseomonas in slow growing Gram-negative rod bacteremias, and consider meropenem as empiric coverage.
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Soares TCB, Isaias GAB, Almeida ARD, Drummond MR, da Silva MN, Lania BG, Vieira-Damiani G, Saad STO, Ericson ME, Gupta K, Velho PENF. Prevalence of Bartonella spp. Infection in Patients with Sickle Cell Disease. Vector Borne Zoonotic Dis 2020; 20:509-512. [PMID: 32013778 DOI: 10.1089/vbz.2019.2545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background: The inherent characteristics of the sickle cell disease (SCD), the most common genetic hematological disorder, increase the propensity of infections. Bartonella spp. are emerging and neglected bacteria. A large spectrum of clinical manifestations has been linked to bartonella bloodstream infection in the last two decades that can cause fatal outcomes, especially in immunodeficient patients. The goal of this study was to evaluate the prevalence of bartonella infection in SCD patients. Materials and Methods: We evaluated Bartonella spp. prevalence in 107 SCD patients. Blood samples and enrichment blood cultures were analyzed by molecular detection of Bartonella spp. DNA. Bartonella DNA was amplified using conventional genus-specific Bartonella PCR which amplifies the Intergenic Transcribed Spacer region and Bartonella henselae-specific nested PCR which amplifies the FtsZ gene. Positive patient DNAs were tested with ssrA conventional PCR. All amplicons were sequenced. Findings: Ten of 107 patients tested positive for B. henselae infection in at least one molecular test. All obtained amplicons were sequenced and similar to B. henselae sequences deposited in GenBank (accession number BX897699). Based on statistical results, bloodstream infection with B. henselae was not associated with animal contact or blood transfusions. Conclusion: We detected B. henselae DNA in 10 (9.3%) SCD studied patients. These patients were notified and treatment was offered to them.
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Affiliation(s)
| | - Gustavo Alves Brito Isaias
- Applied Research in Dermatology and Bartonella Infection Laboratory, University of Campinas (UNICAMP) Medical School, Campinas, Sao Paulo, Brazil
| | - Amanda Roberta de Almeida
- Applied Research in Dermatology and Bartonella Infection Laboratory, University of Campinas (UNICAMP) Medical School, Campinas, Sao Paulo, Brazil
| | - Marina Rovani Drummond
- Applied Research in Dermatology and Bartonella Infection Laboratory, University of Campinas (UNICAMP) Medical School, Campinas, Sao Paulo, Brazil
| | - Marilene Neves da Silva
- Applied Research in Dermatology and Bartonella Infection Laboratory, University of Campinas (UNICAMP) Medical School, Campinas, Sao Paulo, Brazil
| | - Bruno Grosselli Lania
- Applied Research in Dermatology and Bartonella Infection Laboratory, University of Campinas (UNICAMP) Medical School, Campinas, Sao Paulo, Brazil
| | | | | | - Marna Elise Ericson
- Department of Dermatology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Kalpna Gupta
- Division of Hematology, Oncology and Transplantation, University of Minnesota, Minneapolis, Minnesota, USA
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Pompeo CM, Cardoso AIDQ, Souza MDC, Ferraz MB, Ferreira Júnior MA, Ivo ML. Fatores de risco para mortalidade em pacientes com doença falciforme: uma revisão integrativa. ESCOLA ANNA NERY 2020. [DOI: 10.1590/2177-9465-ean-2019-0194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
RESUMO Objetivo Sumarizar fatores de risco e indicadores de mortalidade em pacientes com doença falciforme. Método Revisão integrativa em periódicos indexados nas bases de dados CINAHL, PubMed/MEDLINE, Science Direct/SCOPUS, SciELO e Web of Science. A questão norteadora foi elaborada por meio da estratégia Population, variable, outcome (PVO). A busca ocorreu no portal de periódicos da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior entre outubro e novembro de 2018. Resultados Dos 19 artigos, 18 eram coorte e um ensaio clínico randomizado. A amostra foi constituída, em sua maioria, pelo sexo feminino e genótipo HbSS. Se repetiram mais a taxa de mortalidade cumulativa e a curva de mortalidade global. Sete estudos identificaram fatores de risco com associação estatisticamente significativa para morte. Os mais frequentes foram o baixo nível de hemoglobina, variáveis hepáticas (enzimas fosfatase alcalina e transaminase glutâmico oxalacética) e cardiovasculares (velocidade de regurgitação da válvula tricúspide ≥ 2,5m/s). Conclusão e implicações para a prática Indicadores de mortalidade constituem ferramentas de manejo de pacientes com doença falciforme e prevenção de riscos e complicações. Há necessidade de estudos sobre os fatores relacionados à mortalidade desses pacientes. A prevenção do óbito, certamente, promoverá uma melhoria na qualidade de vida e na sobrevida dessa população.
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Allogeneic Hematopoietic Stem Cell Transplantation for Adults with Sickle Cell Disease. J Clin Med 2019; 8:jcm8101565. [PMID: 31581479 PMCID: PMC6832368 DOI: 10.3390/jcm8101565] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/17/2019] [Accepted: 09/23/2019] [Indexed: 12/30/2022] Open
Abstract
Sickle cell disease (SCD) is an inherited red blood cell disorder that leads to substantial morbidity and early mortality. Acute and chronic SCD-related complications increase with older age, and therapies are urgently needed to treat adults. Allogeneic hematopoietic stem cell transplantation (HSCT) is a curative therapy, but has been used less frequently in adults compared to children. This is, in part, due to (1) greater chronic organ damage, limiting tolerability to myeloablative conditioning regimens, (2) a higher rate of HSCT-related complications in adults versus children with SCD, and (3) limited coverage by public and private health insurance. Newer approaches using nonmyeloablative and reduced-intensity conditioning HSCT regimens have demonstrated better safety and tolerability, with high rates of stable engraftment in SCD adults. This review will focus on the impacts of HSCT, using more contemporary approaches to SCD-related complications in adults.
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Delesderrier E, Cople-Rodrigues CS, Omena J, Kneip Fleury M, Barbosa Brito F, Costa Bacelo A, Correa Koury J, Citelli M. Selenium Status and Hemolysis in Sickle Cell Disease Patients. Nutrients 2019; 11:E2211. [PMID: 31540239 PMCID: PMC6770466 DOI: 10.3390/nu11092211] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/10/2019] [Accepted: 09/10/2019] [Indexed: 12/31/2022] Open
Abstract
Sickle cell disease (SCD) is a genetic hemoglobinopathy characterized by chronic hemolysis. Chronic hemolysis is promoted by increased oxidative stress. Our hypothesis was that some antioxidant micronutrients (retinol, tocopherol, selenium, and zinc) would be determinant factors of the degree of hemolysis in SCD patients. We aimed to investigate the nutritional adequacy of these antioxidants and their relationships to hemolysis. The study included 51 adult SCD patients regularly assisted in two reference centers for hematology in the State of Rio de Janeiro, Brazil. Serum concentrations of retinol, alpha-tocopherol, selenium, and zinc were determined by high-performance liquid chromatography or atomic absorption spectrometry. Hematological parameters (complete blood count, reticulocyte count, hemoglobin, direct and indirect bilirubin, total bilirubin, lactate dehydrogenase) and inflammation markers (leukocytes and ultra-sensitive C-reactive protein) were analyzed. A linear regression model was used to test the associations between the variables. Most patients presented selenium deficiency and low selenium consumption. Linear regression analysis showed that selenium is the main determinant of hemolysis among the antioxidant nutrients analyzed. Thus, data from this study suggest that the nutritional care protocols for patients with SCD should include dietary sources of selenium in order to reduce the risk of hemolysis.
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Affiliation(s)
- Emília Delesderrier
- Instituto de Nutrição, Universidade do Estado do Rio de Janeiro, Rio de Janeiro 20550-900, Brazil.
| | | | - Juliana Omena
- Instituto de Nutrição, Universidade do Estado do Rio de Janeiro, Rio de Janeiro 20550-900, Brazil.
| | - Marcos Kneip Fleury
- Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-590, Brazil.
| | - Flávia Barbosa Brito
- Instituto de Nutrição, Universidade do Estado do Rio de Janeiro, Rio de Janeiro 20550-900, Brazil.
| | - Adriana Costa Bacelo
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz 21040-360, Brazil.
| | - Josely Correa Koury
- Instituto de Nutrição, Universidade do Estado do Rio de Janeiro, Rio de Janeiro 20550-900, Brazil.
| | - Marta Citelli
- Instituto de Nutrição, Universidade do Estado do Rio de Janeiro, Rio de Janeiro 20550-900, Brazil.
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Survival Probability in Patients with Sickle Cell Anemia Using the Competitive Risk Statistical Model. Mediterr J Hematol Infect Dis 2019; 11:e2019022. [PMID: 30858960 PMCID: PMC6402554 DOI: 10.4084/mjhid.2019.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 01/12/2019] [Indexed: 11/08/2022] Open
Abstract
The clinical picture of patients with sickle cell anemia (SCA) is associated with several complications some of which could be fatal. The objective of this study is to analyze the causes of death and the effect of sex and age on survival of Brazilian patients with SCA. Data of patients with SCA who were seen and followed at HEMORIO for 15 years were retrospectively collected and analyzed. Statistical modeling was performed using survival analysis in the presence of competing risks estimating the covariate effects on a sub-distribution hazard function. Eight models were implemented, one for each cause of death. The cause-specific cumulative incidence function was also estimated. Males were most vulnerable for death from chronic organ damage (p = 0.0005) while females were most vulnerable for infection (p=0.03). Age was significantly associated (p ≤ 0.05) with death due to acute chest syndrome (ACS), infection, and death during crisis. The lower survival was related to death from infection, followed by death due to ACS. The independent variables age and sex were significantly associated with ACS, infection, chronic organ damage and death during crisis. These data could help Brazilian authorities strengthen public policies to protect this vulnerable population.
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Silva-Pinto AC, Alencar de Queiroz MC, Antoniazzo Zamaro PJ, Arruda M, Pimentel dos Santos H. The Neonatal Screening Program in Brazil, Focus on Sickle Cell Disease (SCD). Int J Neonatal Screen 2019; 5:11. [PMID: 33072971 PMCID: PMC7510189 DOI: 10.3390/ijns5010011] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 01/23/2019] [Indexed: 11/23/2022] Open
Abstract
Since 2001, the Brazilian Ministry of Health has been coordinating a National Neonatal Screening Program (NNSP) that now covers all the 26 states and the Federal District of the Brazilian Republic and targets six diseases including sickle cell disease (SCD) and other hemoglobinopathies. In 2005, the program coverage reached 80% of the total live births. Since then, it has oscillated between 80% and 84% globally with disparities from one state to another (>95% in São Paulo State). The Ministry of Health has also published several Guidelines for clinical follow-up and treatment for the diseases comprised by the neonatal screening program. The main challenge was, and still is, to organize the public health network (SUS), from diagnosis and basic care to reference centers in order to provide comprehensive care for patients diagnosed by neonatal screening, especially for SCD patients. Considerable gains have already been achieved, including the implementation of a network within SUS and the addition of scientific and technological progress to treatment protocols. The goals for the care of SCD patients are the intensification of information provided to health care professionals and patients, measures to prevent complications, and care and health promotion, considering these patients in a global and integrated way, to reduce mortality and enhance their quality of life.
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Affiliation(s)
- Ana C. Silva-Pinto
- Policy of Integral Attention to People with Sickle Cell Disease (PIAPSCD), Technical Advisory Council for Sickle Cell Disease (TAC-SCD), CGSH/DAET/SAS, Ministry of Health, Asa Norte Brasília 70719-040, Brazil
- Regional Blood Center of Ribeirão Preto, HC-FMRP, University of Sao Paulo (USP), Campus Universitário, Ribeirão Preto 14049-900, Brazil
- Correspondence: ; Tel.: +55-162101-9300
| | - Maria Cândida Alencar de Queiroz
- Regional Blood Center of Ribeirão Preto, HC-FMRP, University of Sao Paulo (USP), Campus Universitário, Ribeirão Preto 14049-900, Brazil
| | | | - Miranete Arruda
- Policy of Integral Attention to People with Sickle Cell Disease (PIAPSCD), Technical Advisory Council for Sickle Cell Disease (TAC-SCD), CGSH/DAET/SAS, Ministry of Health, Asa Norte Brasília 70719-040, Brazil
- State Health Secretariat, State of Pernambuco, Recife 50751-530, Brazil
| | - Helena Pimentel dos Santos
- Policy of Integral Attention to People with Sickle Cell Disease (PIAPSCD), Technical Advisory Council for Sickle Cell Disease (TAC-SCD), CGSH/DAET/SAS, Ministry of Health, Asa Norte Brasília 70719-040, Brazil
- Newborn Screening Program, APAE-Salvador, Salvador 41830-141, Brazil
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