Como eu faço o ecocardiograma na anemia falciforme / My approach to imaging in sickle cell anemia

RESUMO: A doença falciforme (DF) notabiliza-se como problema global de saúde pública, caracterizando-se pela mudança da hemácia para a forma de foice, além da anemia crônica verifica-se alteração da reologia dos glóbulos vermelhos, ocasionando um cenário de inflamação e estresse oxidativo, fazendo da DF uma enfermidade multissistêmica. O débito cardíaco (DC) encontra-se elevado, acarretando aumento das câmaras cardíacas globalmente e hipertrofia miocárdica tipo excêntrica. Essas alterações cardíacas eram atribuídas apenas a reações adaptativas ao estado anêmico crônico. Estudos recentes reconhecem de maneira patente a associação com hipertensão pulmonar (HP), disfunção diastólica do ventrículo esquerdo, arritmias e morte súbita; e, nesse contexto, surge recentemente a hipótese da existência de uma cardiomiopatia falcêmica, caracterizada por disfunção diastólica e fisiologia restritiva. O ecocardiograma configura como instrumento fundamental na determinação dos volumes cavitários, da função diastólica e da estimativa da pressão pulmonar, e constitui recurso valioso no diagnóstico e na condução terapêutica na síndrome torácica aguda. A utilização do strain miocárdico, as variáveis rotacionais, o trabalho miocárdico e a ecocardiografia 3D podem ser utilizados na tentativa de auxiliar a identificação precoce dos pacientes que estão sob maior risco de desenvolverem complicações e morte relacionada à DF.

ABSTRACT: Sickle cell disease (SCD) is recognized as a global problem in public health, characterized by the alteration in the red blood cells to the sickle form. Moreover, chronic anemia can also be observed through the change in the rheology of the red blood cells, leading to a scenario of inflammation and oxidative stress, making SCD a multisystem disease. Cardiac output (CO) proved to be high, leading to an overall increase in the heart chambers and an eccentric myocardial hypertrophy. These heart alterations were attributed only to adaptive reactions to chronic anemia. Recent studies have more clearly recognized an association with pulmonary hypertension (PH), left ventricular diastolic dysfunction, arrhythmias, and sudden death. Moreover, what has also arisen in this context is the hypothesis of the existence of a sickle-cell cardiomyopathy, characterized by diastolic dysfunction and restrictive physiology. The echocardiogram represents a key tool in determining cavitary volumes, diastolic dysfunction, and the estimation of pulmonary pressure, as well as constitutes a valuable resource in the diagnosis and therapeutic treatment of acute chest syndrome. The myocardial strain, rotational variables, myocardial work, and 3D echocardiography can be applied in an attempt to aid in the early detection of patients who are at a higher risk of developing complications and evolving to death related to SCD.

Sickle cell anemia: hierarchical cluster analysis and clinical profile in a cohort in Brazil

Abstract Introduction Sickle cell anemia is a monogenic disorder caused by a mutation in the β-hemoglobin gene, resulting in sickle hemoglobin that can polymerize. Presentation and clinical course have significant inter-individual variability and classifying these patients for severity is a challenge. Methods We applied hierarchical clusters with 10 routine laboratory tests to understand if this grouping could be associated with clinical manifestations. We included 145 adult homozygous patients (SS) at an outpatient clinic in a retrospective study. Results We found five clusters by counting those that had been differentiated by unconjugated bilirubin, reticulocytes, LDH, leukocytes, lymphocytes and monocytes. When comparing groups to clinical findings, the clusters were different only for liver abnormality. Cluster 3 had the lower median of reticulocytes, LDH, leukocytes, lymphocytes and monocytes and a higher percentage of patients under treatment. Clusters 4 and 5 had higher frequencies of liver impairment and higher medians of reticulocytes, LDH, leukocytes, lymphocytes and monocytes. Hemolysis and inflammation seemed to influence the grouping. Conclusion In our study, cluster analysis showed five groups that exhibited different degrees of inflammation and hemolysis. When comparing clinical data, the result was different only for the criteria of liver abnormality.

Presentación de un caso de neumonía asociada con drepanocitemia / Presentation of a case of pneumonia associated with sickle cell disease

La anemia drepanocítica o hemoglobina S constituye una enfermedad genética producida por la mutación del gen HBB (11p15.4) del cromosoma 11. Paciente masculino afrodescendiente con una edad de 19 años que presenta fiebre de 38°C a 39°C, asociado con tos, expectoración verdosa y malestar general de tres días de evolución. Se diagnosticó neumonía bacteriana extrahospi-talaria y anemia indefinida. Los estudios radiológicos mostraron cardiomegalia. La ecografía de abdomen reflejó hígado de tamaño normal, disminución de la ecogenicidad y ecoestructura granular fina en ambos riñones, prominencia de las paredes de los vasos portales, compresión del seno renal con mala diferenciación seno parénquima, bazo que no se visualiza y páncreas de características normales. Así, se necesitó corroborar el posible padecimiento de Sicklemia, siendo confirmada. La antibioticoterapia y la administración de hierro parenteral posibilitó la mejoría y el alta; aunque, las afectaciones en los órganos blanco ya habían provocado el deterio-ro general del estado de salud del paciente.

Sickle cell anemia or hemoglobin S is a genetic disease caused by the mutation of the HBB gene (11p15.4) on chromosome 11. A case of a 19-year-old Afro-descendant male patient with a fever of 38 to 39°C is, associated with cough, expectoration greenish color, and general malaise of three days of evolution is presented. He was diagnosed with community-acquired bacterial pneumonia and indefinite anemia. Radiological studies showed cardiomegaly. Abdominal ultra-sound revealed a normal-sized liver, decreased echogenicity and fine granular echostructure in both kidneys, prominence of the walls of the portal vessels, compression of the renal sinus with poor sinus-parenchyma differentiation, spleen not visible, and pancreas of standard characteris-tic. Thus, it was necessary to corroborate the possible condition of Sicklemia, being confirmed. Antibiotic therapy and parenteral iron administration improved and made discharge possible; however, the affectations in the target organs had already caused the general deterioration of the patient's state of health

Maternal and perinatal outcomes in pregnant women with sickle cell disease: an update

ABSTRACT Introduction: The aim of this study was to describe maternal and perinatal outcomes in pregnant women with sickle cell disease (SCD) followed at Santa Casa de Sao Paulo over a 10-year period (between 2010 and 2019). Method: Fifty-five records of pregnancies were analyzed among 35 women with SCD. Results: Among 29 newborns, 19 (65.5%) were full-term and 10 pre-term; 24 (82.7%) caesareans and 5 (17.2%) natural births were observed. The mean gestational age at birth and mother's age were 36.6 weeks (30-40) and 26.7 years (17-39), respectively. No maternal death was observed. The main maternal obstetric and non-obstetric complications were: preeclampsia and gestational diabetes, and vaso-occlusive crisis, urinary tract infection and acute chest syndrome, respectively. Twenty-six (47.0%) fetal deaths were observed, 24 being intrauterine fetal (14 early abortions, 10 late abortions and 2 stillbirths). Regarding the red blood cell transfusion history, 40 (72.7%) out of 55 pregnancies received transfusion. Pregnant women who received 6 or more transfusions throughout pregnancy had a significantly lower number of abortions, i.e., no cases of early abortion and only 1 case of late abortion, versus 14 and 9 cases in pregnancies with 0-5 transfusions, respectively. Despite advances in the management of SCD, pregnant women with SCD (particularly those with HbSS) are at a high risk for maternal and fetal complications, even though they are followed in reference centers. Conclusion: The lower risk of intrauterine fetal death for those women who received more transfusions throughout pregnancy observed in the current study leads us once more to raise the need for prospective, multicenter, randomized trials to determine whether the potential benefits balance the risks of prophylactic transfusions.

Hemoglobin S identification in blood donors: A cross section of prevalence

ABSTRACT Introduction: In Brazil, the sickle cell trait (SCT) has an average prevalence of 4% in the general population and 6-10% among Afro-descendants. Although SCT is highly prevalent, a large segment of the population ignores their status. The Therapeutic Guidelines prohibit the transfusion of SCT red blood cells into patients with hemoglobin disorders or severe acidosis and newborns. Methods: This was a cross-sectional study with data from 37,310 blood donation candidates. The study included only eligible first-time donors qualified to be tested for the presence of hemoglobin S (HbS) at the Fundação Hemominas Juiz de Fora, Brazil. The variables studied were gender, skin color, age, type of donation, place of birth, blood type, result of the solubility test for hemoglobin S (HbST) and hemoglobin electrophoresis (HbEF). Statistical analysis was performed using the Q square test and the Kappa index of agreement for comparing biochemical methods. This project was approved by the National Research Ethics Committee. Results: The analysis of first-time donor data showed that 7166 were considered eligible. A total of 127 of the 7166 donors were carriers of SCT (1.77%). Among the blood donors, 73.23% were from the local area. The HbST and HbEF were found to be 100% in concordance. Sensitivity was not tested in the present study. Conclusions: The HbST is highly specific for identifying the HbS, but sensitivity was not tested in this study. The screening of blood donors for abnormal hemoglobins is useful, helping to detect and counsel heterozygous people. The study seeks to identify the prevalence of SCT in a region of Brazil.

HemoTypeSC point-of-care testing shows high sensitivity with alkaline cellulose acetate hemoglobin electrophoresis for screening hemoglobin SS and SC genotypes

ABSTRACT Introduction: By providing timely actionable results for prompt management, point-of-care testing (POCT) kits have revolutionised medical care for various diseases, ranging from infectious diseases like malaria to genetic disorders, such as sickle cell disease (SCD). They are, however, underutilised in the diagnosis of SCD in developing countries, where the need is greatest. Objective: The study was aimed at assessing the sensitivity of HemoTypeSC POCT among a cohort of children with SCD, previously diagnosed by Alkaline cellulose acetate hemoglobin electrophoresis (ACAE), with or without high-performance liquid chromatography (HPLC). Methods: In this descriptive cross-sectional study, HemoTypeSC test was conducted on all participants and its sensitivity was determined by comparing results with those obtained using ACAE. Discordance was verified with HPLC. Results: One hundred and forty-five children aged one to 19 years were studied. There were 84 males and 61 females (male: female ratio = 1.4:1). The HemoTypeSC was able to correctly diagnose sickle cell anemia (SCA) and hemoglobin SC in all (100%) of the children tested. Conclusion: The HemoTypeSC shows high sensitivity in detecting SCA and hemoglobin SC. Hence, it is useful for targeted screening of individuals suspected of having SCD, leading to rapid diagnosis of these hemoglobinopathies, even in resource-constrained settings.

Impacto del diagnóstico prenatal del Programa Nacional para la Prevención de Anemia Falciforme en la incidencia de hemoglobinopatías en Santiago de Cuba / Impact of the prenatal diagnosis of the National Program for the prevention of sickle-cell anemia in the incidence of hempoglobimopathies in Santiago de Cuba

Introducción: El nacimiento de personas con hemoglobinas SS y SC promovió la creación en Cuba de un programa de prevención que incluye el diagnóstico prenatal de estas hemoglobinopatías. Objetivo: Mostrar el impacto del diagnóstico prenatal en la incidencia de anemia drepanocítica y de enfermedad heterocigótica compuesta SC. Métodos: Se realizó un estudio descriptivo, retrospectivo, de corte transversal, en el Departamento Provincial de Genética Médica del Hospital Docente Infantil Sur Dr. Antonio María Béguez César en Santiago de Cuba, que abarcó un período de tres decenios más un sexenio (de 1984 a 2019), de los 713 fetos y niños en los que se detectó anemia de células falciformes. Para establecer el diagnóstico prenatal se realizó electroforesis de hemoglobina a las embarazadas -durante los primeros años con el equipo Habana y a partir del 2012 con la tecnología Hydrasys-. Resultados: Del total de casos diagnosticados, se interrumpió el embarazo en 44,3 %, con un incremento significativo de los abortos provocados por esta causa al transcurrir los años, a saber: 23,7 % en el primer decenio, 46,1 % en el segundo y 68,1 % en el tercero; mientras que en el período 2014-2019 fue de 59,3 %. Por consiguiente, disminuyó el nacimiento de niños enfermos de 76,3 % en los inicios del estudio a 53,9 y 31,9 % en el segundo y tercero decenios, respectivamente, y por último a 40,7 % en el sexenio. Conclusiones: El diagnóstico prenatal de la anemia de células falciformes SS y la enfermedad heterocigótica compuesta SC constituye el pilar fundamental para la prevención de estas hemoglobinopatías.

Introduction: The birth of people with SS and SC hemoglobine justified the creation of a prevention program in Cuba which includes the antenatal diagnosis of these hemoglobinopathies. Objective: To show the impact of the antenatal diagnosis in the incidence of sickle-cell anemia and of the composed heterocigotic disease SC. Methods: A descriptive restrospective and cross-sectional study was carried out in the Provincial Department of the Teaching Southern Pediatric Hospital Antonio María Béguez César in Santiago de Cuba, which included three decades and a sexennium (from 1984 to 2019), of the 713 fetuses and children in whom sickell-cell anemia was diagnosed. To establish the prenatal diagnosis, hemoglobine electrophoresis to all pregnant women, -During the first years with Havana equipment and from 2012 on, with the technology Hydrasys-. Results: From the total of diagnosed cases, pregnancy was interrupted in 44,3 %, with a significant increase of aborptions provoked due to this cause with the passing of years: 23.7 % in the first decenium, 46.1 in the second and 68.1 % in the third, while in the period 2014-2019 it was 59.3 %. Due to this, the births of sick children to from 76.3 % at the beggining of the study to 53.9 and 31.9 respectively, and finally to 40.7 % in the sexenium 2014-2019. Conclusions: The prenatal diagnosis of sickel-cell anemia SS and SC constitutes the key stone for the prevention of these hemoglobinopathies.

Association between inflammatory molecules, nitric oxide metabolites and leg ulcers in individuals with sickle cell anemia

Abstract Introduction Leg ulcers (LUs) are relatively common in patients with sickle cell anemia (SCA). The role of inflammation and nitric oxide (NO) pathways in the pathophysiology of the LU is not understood. Objective The aim of this study was to verify the association between inflammatory molecules and nitric oxide metabolites (NOx) and the occurrence of the LU in patients with SCA. Method It was a cross-sectional study on adult participants with SCA followed at Fundação Hemominas, a public blood center in Brazil. Eligible participants were recruited and included in one of two groups: Group 1, comprised of cases with SCA (Hb SS) and at least one LU at the time of inclusion in the study and Group 2, comprised of controls with SCA without a history of LU, matched by sex and age to cases. Participants were interviewed to obtain sociodemographic data and blood samples were collected. Clinical and laboratory data were abstracted from medical records. Nitric oxide metabolites (NOx) and inflammatory molecules were quantified using an immunoassay and Multiplex xMAP® technology, respectively. Eighty-seven individuals were included, ranging in age from 17 to 61 years (mean 40 ± 10.7 years); 30 had LU and 57 were controls without LU. Results Participants with LU had significantly higher levels of interleukin 8 (IL-8), IL-10, IL-15, NOx and platelet and white blood cell (WBC) counts, when compared to those without LU. Participants with LU had a significantly higher risk of having a history of osteomyelitis and a higher use of antiseptic soap in bathing, when compared to those without LU. Conclusion In conclusion, our results showed that NOx, inflammatory molecules and hematological features were associated with LU in Brazilian adults with SCA.

Bibliometric analysis of global sickle cell disease research from 1997 to 2017

Abstract Introduction Sickle cell disease is an autosomal recessive genetic disease caused by a single point mutation in the β-globin chain of the hemoglobin. It has been recognized by the World Health Organization as a public health priority since 2006. Methods The Scopus database was used in this study with the search descriptors: "sickle cell" and "sickle cell disease". We applied common bibliometric indicators to evaluate the trend in scientific literature in sickle cell disease research. Results We retrieved a total of 19,921 pieces of scientific literature in the repertoire from 1997 to 2017. The Price law was fulfilled in the trend of production of scientific literature on SCD as the growth of scientific literature was more exponential (r = 0.9751; r2 = 0.9509) than linear (r = 0.9721; r2 = 0.9449). We observed a duplication time of 4.52 years. The Bradford core was made up of 69 journals with Blood at the top, publishing the greatest number of articles. The most productive institutions were mostly United States agencies and hospitals. The United States was the most productive country. The National Institute of Health was the most productive institution and also had the highest number of citations. Vichinsky E was the most productive author, while the most cited article was published by Circulation. Conclusion The growth of scientific literature in Sickle cell disease was found to be high. However, the exponential growth trend shows a "yet-to-be-explored" area of research. This study will be useful for physicians, researchers, research funders and policy-cum-decision makers.

Sickle cell disease related mortality in Brazil, 2000-2018

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.

Testes Ergométricos em Pacientes com Anemia Falciforme: Segurança, Viabilidade e Possíveis Implicações no Prognóstico / Exercise Testing In Patients with Sickle Cell Disease: Safety, Feasibility and Potential Prognostic Implication

Resumo Fundamento Pacientes com anemia falciforme (AF) têm risco aumentado de complicações cardiovasculares. O teste ergométrico é usado como marcador de prognóstico em uma série de doenças cardiovasculares. Entretanto, há uma escassez de evidências sobre exercícios em pacientes com AF, especialmente em relação à sua segurança, viabilidade e possível função prognóstica. Objetivos Usamos o teste em esteira máximo para determinar a segurança e a viabilidade do teste ergométrico em pacientes com AF. Além disso, os fatores associados à duração do exercício, bem como o impacto das alterações causadas pelo exercício em resultados clínicos, também foram avaliados. Métodos 113 pacientes com AF que passaram pelo teste ergométrico e por uma avaliação cardiovascular abrangente incluindo um ecocardiograma e os níveis do peptídeo natriurético do tipo B (BNP). O desfecho de longo prazo foi uma combinação de eventos incluindo morte, crises álgicas graves, síndrome torácica aguda ou internações hospitalares por outras complicações associadas â doença falciforme. A análise de regressão de Cox foi realizada para identificar as variáveis associadas ao resultado. Um p valor <0,05 foi considerado estatisticamente significativo. Resultados A média de idade foi de 36 ± 12 anos (intervalo, 18-65 anos), e 62 pacientes eram do sexo feminino (52%). A presença de alterações isquêmicas ao esforço e resposta pressórica anormal ao exercício foram detectadas em 17% e 9 % da´população estudada respectivamente. Dois pacientes apresentaram crise álgica com necessidade de internação hospitalar no período de 48 horas da realização do exame. Fatores associados à duração do exercício foram idade, sexo, velocidade máxima de regurgitação tricúspide (RT), e relação E/e', após a padronização quanto aos marcadores da gravidade da doença. Durante o período médio de acompanhamento de 10,1 meses (variando de 1,2 a 26), 27 pacientes (23%) apresentaram desfechos clínicos adversos. Preditores independentes de eventos adversos foram a concentração de hemoglobina, velocidade do fluxo transmitral tardio (onda A), e a resposta da PA ao exercício. Conclusões A realização de testes ergométricos em pacientes com AF, clinicamente estáveis, é viável. A duração do exercício estava associada à função diastólica e a pressão arterial pulmonar. A resposta anormal da PA foi um preditor independente de eventos adversos.

Abstract Background Patients with sickle cell disease (SCD) are at increased risk for cardiovascular complications. Exercise testing is used as a prognostic marker in a variety of cardiovascular diseases. However, there is a lack of evidence on exercise in SCD patients, particularly regarding its safety, feasibility, and possible prognostic role. Objectives We used the maximal treadmill test to determine safety and feasibility of the exercise testing in SCD patients. Additionally, the factors associated with exercise duration, as well as the impact of exercise-induced changes on clinical outcome, were also assessed. Methods One-hundred thirteen patients with SCD, who underwent exercise testing, were prospectively enrolled. A comprehensive cardiovascular evaluation, including echocardiography and B-type natriuretic peptide (BNP) levels, were obtained. The long-term outcome was a composite endpoint of death, severe acute painful episodes, acute chest syndrome, or hospitalization for other SCD-related complications. Cox regression analysis was performed to identify the variables associated with the outcome. A p-value<0.05 was considered to be statistically significant. Results The mean age was 36 ± 12 years (range, 18-65 years), and 62 patients were women (52%). Ischemic electrocardiogram and abnormal blood pressure (BP) response to exercise were detected in 17% and 9%, respectively. Two patients experienced pain crises within 48 hours that required hospitalization. Factors associated with exercise duration were age, sex, tricuspid regurgitation (TR) maximal velocity, and E/e' ratio, after adjustment for markers of disease severity. During the mean follow-up of 10.1 months (ranging from 1.2 to 26), the endpoint was reached in 27 patients (23%). Independent predictors of adverse events were hemoglobin concentration, late transmitral flow velocity (A wave), and BP response to exercise. Conclusions Exercise testing in SCD patients who were clinically stable is feasible. Exercise duration was associated with diastolic function and pulmonary artery pressure. Abnormal BP response was an independent predictor of adverse events.

Prevalence of clinical manifestations suggestive of depression in patients with sickle cell disease: a review / Prevalência de manifestações clínicas sugestivas de depressão em pacientes portadores de doença falciforme: uma revisão

OBJECTIVE: To assess the prevalence of clinical manifestations suggestive of depression in patients with sickle cell disease. METHODS: A systematic search was performed in the electronic databases PubMed® , LILACS and SciELO, with the following inclusion criteria: cross-sectional studies that assessed the prevalence of depression in patients with sickle cell disease, published in English or Portuguese in the last 10 years. The selection of the articles was performed in two stages by two independent researchers following the PRISMA (Preferred reporting items for systematic reviews and meta-analyses) recommendations. The first stage consisted on screening the titles and abstracts, and in the second stage the full text was appraised, both following the pre-defined inclusion and exclusion criteria. RESULTS: From the 42 articles available, nine were included in this review. Seven instruments were used to screen for depression with different cutoff points, and the Patient Health Questionnaire-9 (PHQ-9) was the most used instrument. The worldwide prevalence of clinical manifestations suggestive of depression ranged from 11 to 40%, according to several variables. CONCLUSION: The prevalence of clinical manifestations suggestive of depression in patients with sickle cell disease is higher compared to the prevalence of depression in the general population. Thus, the multidisciplinary follow-up for these people, with a focus on mental health, is of great importance.

OBJETIVO: Avaliar a prevalência mundial de manifestações clínicas sugestivas de depressão em portadores de doença falciforme. MÉTODOS: Realizou-se uma busca sistemática nas bases de dados eletrônicas PubMed® , LILACS e SciELO, para identificação dos estudos transversais, publicados em inglês ou português nos últimos 10 anos, que avaliaram a prevalência de depressão em portadores de doença falciforme. A seleção dos artigos foi realizada em duas etapas e por dois pesquisadores independentes seguindo a recomendação PRISMA (Preferred reporting items for systematic reviews and meta-analyses). A primeira etapa consistiu na triagem dos títulos e resumos e na segunda etapa foi realizada a análise completa do artigo, ambas seguindo os critérios de inclusão e exclusão predefinidos. RESULTADOS: Dos 42 artigos disponíveis, nove foram incluídos na revisão. Foram utilizados sete instrumentos diferentes para rastreio de depressão com diferentes pontos de corte, sendo The Patient Health Questionnaire-9 (PHQ-9) o instrumento mais utilizado. A prevalência mundial de manifestações clínicas sugestivas de depressão variou de 11% a 40%, conforme diversas variáveis verificadas. CONCLUSÃO: A prevalência de manifestações clínicas sugestivas de depressão encontrada para os portadores de doença falciforme é superior à prevalência de depressão descrita na população geral. Desse modo, é de suma importância o acompanhamento multidisciplinar para essas pessoas, com enfoque na saúde mental.

Ácido úrico en las gestantes con diagnóstico de drepanocitosis y preeclampsia / Uric acid in pregnant women diagnosed with sickle cell disease and preeclampsia

RESUMEN Introducción: El ácido úrico es el producto final del ciclo de las purinas y es fundamental como marcador de enfermedad renal, la gota y la preeclampsia. Este biomarcador ejerce efectos potenciales en la placenta y el feto de la gestante con drepanocitosis. Objetivo: Describir los efectos potenciales que produce el ácido úrico en las gestantes con drepanocitosis. Métodos: Se revisó literatura en inglés y en español, a través del sitio web PubMed y el motor de búsqueda Google académico, en artículos publicados en los últimos cinco años. Se utilizaron como términos de búsqueda: preeclampsia, ácido úrico y riesgos en las embarazadas con drepanocitosis. Se analizaron los aspectos más relevantes del tema en la bibliografía revisada. Análisis y síntesis de la información: El incremento del ácido úrico añadido a la vasoclusión, la hipoxia y la necrosis tisular a nivel de la placenta son mecanismos invocados en el desarrollo de la preeclampsia y los índices de partos prematuros que presentan. Es de destacar que no tiene una trayectoria uniforme en todas las pacientes, sobre todo se observa una mejor evolución (con menor presencia de estas complicaciones) en aquellas pacientes que muestran genotipo, niveles de hemoglobina fetal y haplotipo de la hemoglobina S más favorable. Conclusiones: El ácido úrico constituye un biomarcador útil y de alarma en el diagnóstico de la preeclampsia, una de las peores complicaciones tanto para la vida materna como para su descendencia, al ser la gestante con drepanocitosis una paciente de muy alto riesgo de parto pretérmino, prematuridad, bajo peso al nacer, nacidos muertos e infarto placentario.

ABSTRACT Introduction: Uric acid is the end product of the purine cycle and is essential as a marker of kidney disease, gout and pre-eclampsia. This biomarker has potential effects on the placenta and fetus of a pregnant woman with sickle cell disease. Objective: To describe the potential effects of uric acid in pregnant women with sickle cell disease. Methods: Literature in English and Spanish was reviewed, through the PubMed website and the academic search engine Google, in articles published in the last five years. The search terms were: pre-eclampsia, uric acid and risks in pregnant women with sickle cell disease. The most relevant aspects of the subject were analyzed in the reviewed bibliography. Analysis and synthesis of information: The increase in uric acid added to vasoocclusion, hypoxia and tissue necrosis at the level of the placenta are mechanisms invoked in the development of pre-eclampsia and the rates of premature births they present. It is noteworthy that it does not have a uniform trajectory in all patients, especially a better evolution is observed, with less presence of these complications in those patients who show a more favorable genotype, fetal hemoglobin levels and hemoglobin S haplotype. Conclusions: Uric acid constitutes a useful and alarm biomarker in the diagnosis of pre-eclampsia, one of the worst complications both for maternal life and for her offspring, as the pregnant woman with sickle cell disease is a patient at a very high risk of preterm delivery. prematurity, low birth weight, stillbirths and placental infarction.

Disfunción crónica de órganos en pacientes con drepanocitosis. Parte I: manifestaciones cardiorrespiratorias / Chronic organ dysfunction in patients with sickle cell anemia. Part I: cardiorespiratory manifestations

Introducción: En la actualidad la mayoría de los pacientes con anemia falciforme alcanzan la adultez. La disfunción crónica de órganos constituye la causa primaria de muerte y representa un desafío en el manejo de estos enfermos. Objetivo: Analizar los aspectos generales de la disfunción orgánica crónica en pacientes con drepanocitosis y profundizar en las alteraciones cardiorrespiratorias. Métodos: Se realizó una revisión de los artículos publicados en los últimos diez años con el uso de los buscadores PubMed, SciELO y Google Académico. Los términos de búsqueda fueron: anemia de células falciformes, disfunción orgánica, mortalidad, hipertensión pulmonar, enfermedad pulmonar crónica, asma, apnea obstructiva del sueño. Análisis y síntesis de la información: Con el aumento de la expectativa de vida, en el manejo de los pacientes con drepanocitosis, gana en relevancia el diagnóstico precoz y el tratamiento oportuno de la disfunción crónica de órganos. Este es un proceso que comienza en la infancia, pero se hace más evidente en la etapa adulta. Las manifestaciones cardiorrespiratorias más comunes y con impacto en la morbilidad y en la mortalidad son: la hipertensión pulmonar y la enfermedad pulmonar crónica. Se describen aspectos relacionado con la prevalencia, diagnóstico, implicaciones en la evolución de los enfermos y aspectos relacionados con su tratamiento. Conclusiones: La hipertensión pulmonar y la enfermedad pulmonar crónica son frecuentes en pacientes con drepanocitosis. Ambas complicaciones tienen un impacto negativo en la evolución de estos enfermos y se asocian a aumento de la mortalidad. La detección temprana de estas afecciones, permite tomar acciones terapéuticas para disminuir sus consecuencias(AU)

Introduction: Currently, most patients with sickle cell disease reach adulthood. Chronic organ dysfunction constitutes the primary cause of death and represents a challenge in the management of these patients. Objectives: To analyze the general aspects of chronic organic dysfunction in patients with sickle cell disease and to delve into the cardiorespiratory ones. Methods: A review of the articles published in the last ten years was carried out using the PubMed, SciELO and Google Scholar search engines. The search terms were: sickle cell anemia, organ dysfunction, mortality, pulmonary hypertension, chronic lung disease, asthma, obstructive sleep apnea. Information analysis and synthesis: With the increase in life expectancy, in the management of patients with sickle cell disease, early diagnosis and timely treatment of chronic organ dysfunction gain relevance. This is a process that begins in childhood, but becomes more apparent in adulthood. The most common cardiorespiratory manifestations with an impact on morbidity and mortality are: pulmonary hypertension and chronic lung disease. Aspects related to prevalence, diagnosis, implications in the evolution of patients and aspects related to their treatment are described. Conclusions: Pulmonary hypertension and chronic lung disease are frequent in patients with sickle cell disease. Both complications have a negative impact on the evolution of these patients and are associated with increased mortality. Early detection of these conditions allows therapeutic actions to be taken to reduce their consequences(AU)

Drepanocitosis y planificación familiar / Sickle cell disease and family planning

Introducción: La planificación familiar en las gestantes con drepanocitosis contribuye a disminuir el número de embarazos y la morbimortalidad materno fetal. Objetivo: Analizar conceptos de planificación familiar aplicables a la gestante con drepanocitosis y proponer acciones de asesoramiento encaminadas a disminuir los indicadores de morbilidad y mortalidad materna y fetal relacionadas con esta enfermedad. Métodos: Se realizó una revisión de la literatura, en inglés y español, a través del sitio web Pubmed y el motor de búsqueda Google académico de artículos publicados en los últimos 5 años, con análisis y resumen de la bibliografía revisada. Análisis y síntesis de la información: La gran mayoría de las pacientes con drepanocitosis desconocen los conceptos de salud sexual y reproductiva, así como de planificación familiar, por lo que muchas se convierten en mujeres con múltiples gestaciones que terminan en abortos, con alto riesgo de complicaciones severas y 2,5 veces más posibilidades de muerte durante la gestación y el puerperio que una gestante no enferma. La aplicación de un grupo de medidas encaminadas a dar a conocer estos conceptos desde la consulta de hematología, acercan a estas pacientes y a su pareja a la toma correcta de decisión sobre en qué momentos y cuántos hijos tener. Conclusión: La planificación familiar como proceso de atención médica en la drepanocitosis, con participación directa del hematólogo, como médico de asistencia primario durante toda la vida de estas gestantes, contribuye a fortalecer la relación entre el trabajo del equipo asistencial, la pareja y disminuye la morbilidad y mortalidad materna fetal(AU)

Introduction: Family planning in pregnant women with sickle cell disease contributes to reducing the number of pregnancies and maternal-fetal morbidity and mortality. Objective: To analyze family planning concepts applicable to pregnant women with sickle cell disease and propose counseling actions aimed at reducing the indicators of maternal fetal morbidity and mortality related to this disease. Methods: A literature review was carried out, in English and Spanish, through the Pubmed website and the academic Google search engine of articles published in the last 5 years, with analysis and summary of the reviewed bibliography. Analysis and synthesis of information: The vast majority of patients with sickle cell disease are unaware of the concepts of sexual and reproductive health as well as FP, so many become women with multiple pregnancies that end in abortions, with a high risk of complications severe and 2.5 times more likely to die during pregnancy and the puerperium than a non-ill pregnant woman. The application of a group of measures aimed at making these concepts known from the hematology consultation, brings these patients and their partner closer to making the correct decision about when and how many children to have. Conclusion: Family planning as a medical care process in sickle cell disease, with direct participation of the hematologist, as primary care physician throughout the life of these pregnant women, contributes to strengthening the relationship between the work of the healthcare team, the couple and decreases morbidity and fetal maternal mortality(AU)

Cuidado transpersonal mediado por Reiki: vivencias de familiares de niños con enfermedad falciforme / Cuidado transpessoal mediado por Reiki: vivências de familiares de crianças com doença falciforme / Transpersonal care through Reiki: Experiences of family members of children with sickle cell disease

Objetivo: To understand the experiences of family members of children with sickle cell disease during transpersonal nursing care meetings mediated by Reiki. Materials and methods: Convergent care research, underpinned by Watson's Theory on Human Care, developed in a health facility for people with sickle cell disease in the state of Bahia, Brazil. The study was carried out from August to October 2016. Interviews with participants took place before and after six sessions of transpersonal care mediated by Reiki with seven family members. Thematic content analysis was applied to the data collected. Results: Participants realized the importance of cultivating self-recognition, identifying their fears and feelings, valuing self-care, reflecting on their health priorities and needs, and recognizing their potential for transforming their practices. After the meetings, feelings emerged towards valuing the self as a person to be cared for, reducing anxiety and stress, reconnecting with beliefs and deities, acceptance of the disease, the role of caregiver and the future, as well as better interaction with family members in order to manage conflicts harmonically. Conclusions: Transpersonal care favors nursing professionals' autonomy to create their own way of thinking and practicing longitudinal care, which can be applied throughout the process of prevention, diagnosis tion of the disease to achieve healing. It is up to these professionals to deepen theoretically on this approach and use the Clinical Caritas Process in the systematization of nursing care.

Objetivo: comprender las vivencias de los familiares de niños con enfermedad falciforme durante encuentros de cuidado transpersonal de enfermería mediados por Reiki. Materiais e métodos: estudio convergente asistencial con base en la Teoría del Cuidado Humano de Watson, desarrollado en un centro de atención en salud para personas con enfermedad falciforme en el estado de Bahía, Brasil, entre agosto y octubre de 2016. Se llevaron a cabo una serie de entrevistas antes y después de seis encuentros de cuidado mediado por Reiki con siete familiares de niños con enfermedad falciforme. La información recopilada fue sometida a análisis de contenido temático. Resultados: los participantes dieron cuenta de la importancia de cultivar el autorreconocimiento, identificar sus miedos y sentimientos, valorar el autocuidado, reflexionar sobre sus prioridades y necesidades de salud y reconocer el potencial de cada uno para transformar sus prácticas de vida. Tras las reuniones surgieron sentimientos de valoración del yo como persona a cuidar, reducción de la ansiedad y el estrés, reconexión con creencias y deidades, aceptación de la enfermedad, reflexión en torno al rol de cuidador y el futuro, así como deseos de una mejor interacción con sus familiares para gestionar eventuales conflictos de forma armónica. Conclusiones: el cuidado transpersonal favorece la autonomía de los profesionales en enfermería para crear su propia forma de concebir y practicar el cuidado longitudinal, el cual puede ser aplicado en todo el proceso de prevención, diagnóstico y rehabilitación del estado patológico a fin de alcanzar la sanación. Así, corresponde a la enfermería profundizar teóricamente en este enfoque y hacer uso del Proceso Clínico Caritas para la sistematización de la atención de enfermería.

Objetivo: compreender as vivências de familiares de crianças com doença falciforme durante os encontros de cuidado transpessoal de Enfermagem mediado pelo Reiki. Materiales y métodos: estudo convergente assistencial, fundamentado na Teoria do Cuidado Humano de Watson desenvolvido em um centro de referência a pessoas com doença falciforme no estado da Bahia, Brasil, entre agosto e outubro de 2016. As entrevistas ocorreram antes e após seis encontros de cuidado mediado pelo Reiki com sete familiares. Os relatos foram submetidos à análise de conteúdo temática. Resultados: os participantes perceberam a importância de cultivar o autorreconhecimento, identificar seus temores e sentimentos, valorizar o autocuidado, refletir sobre suas prioridades e necessidades de saúde e reconhecer suas potencialidades para a transformação das suas práticas. Após os encontros, emergiram sensações de valorização do eu enquanto pessoa a ser cuidada, diminuição da ansiedade e do estresse, reconexão com as crenças e as divindades, aceitação da doença, do papel de cuidador e do futuro, bem como melhor interação com familiares de modo a gerir conflitos harmonicamente. Conclusões: o cuidado transpessoal favorece a autonomia das enfermeiras para criar um modo de fazer próprio, permite a prática de um cuidado longitudinal, que pode ser aplicado durante todo o processo de prevenção, diagnóstico e reabilitação do estado de adoecimento, a fim de alcançar o healing. Cabe à enfermagem o aprofundamento teórico e o uso do Clinical Caritas Process na sistematização da assistência de enfermagem.