Short-term extinction predicted by population viability analysis for a Neotropical salt marsh endemic bird.

Salt marshes pose challenges for the birds that inhabit them, including high rates of nest flooding, tipping, and predation. The impacts of rising sea levels and invasive species further exacerbate these challenges. To assess the urgency of conservation and adequacy of new actions, researchers and wildlife managers may use population viability analyses (PVAs) to identify population trends and major threats. We conducted PVA for Formicivora acutirostris, which is a threatened neotropical bird species endemic to salt marshes. We studied the species' demography in different sectors of an estuary in southern Brazil from 2006 to 2023 and estimated the sex ratio, longevity, productivity, first-year survival, and mortality rates. For a 133-year period, starting in 1990, we modeled four scenarios: (1) pessimistic and (2) optimistic scenarios, including the worst and best values for the parameters; (3) a baseline scenario, with intermediate values; and (4) scenarios under conservation management, with increased recruitment and/or habitat preservation. Projections indicated population decline for all assessment scenarios, with a 100% probability of extinction by 2054 in the pessimistic scenario and no extinction in the optimistic scenario. The conservation scenarios indicated population stability with 16% improvement in productivity, 10% improvement in first-year survival, and stable carrying capacity. The disjunct distribution of the species, with remnants concentrated in a broad interface with arboreal habitats, may seal the population decline by increasing nest predation. The species should be considered conservation dependent, and we recommend assisted colonization, predator control, habitat recovery, and ex situ conservation.

Safety and efficacy of catheter ablation for atrial fibrillation in cancer survivors: a systematic review and meta-analysis

BACKGROUND: Cancer survivors are at increased risk for atrial fibrillation (AF). However, data on the efficacy and safety of catheter ablation (CA) in this population remain limited. Therefore, we aimed to perform a systematic review and meta-analysis comparing outcomes after CA for AF in patients with versus without prior or active cancer. METHODS: We systematically searched PubMed, Cochrane Library, and Embase from inception to April 2023 for studies comparing the safety and efficacy of CA for AF in cancer survivors. Outcomes of interest were bleeding events, late AF recurrence, and need for repeat ablation. Statistical analyses were performed using Review Manager 5.4.1. We pooled odds ratios (OR) with 95% confidence intervals (CI) for binary endpoints. RESULTS: We included 5 retrospective cohort studies comprising 998 patients, of whom 41.4% had a history of cancer. Cancer survivors were at significantly higher risk of clinically relevant bleeding (OR 2.17; 95% CI 1.17-4.0; p=0.01) as compared with those without cancer. The efficacy of CA for AF was similar between groups. Late AF recurrence at 12 months was not significantly different between patients with vs. without a history of cancer (OR 1.29; 95% CI 0.78-2.13; p=0.32). Similar findings were observed in the outcome of repeat ablations (OR 0.71; 95% CI 0.37-1.37; p=0.31). CONCLUSIONS: These findings suggest that cancer survivors have an increased risk of bleeding after CA for AF relative to patients without cancer, with no significant difference in the efficacy of CA for maintenance of sinus rhythm between groups. STUDY REGISTRATION: This systematic review is registered in the International Prospective Register of Systematic Reviews (PROSPERO) under registration number CRD42023394538.

Safety and efficacy of catheter ablation for atrial fibrillation in cancer survivors: a systematic review and meta-analysis.

BACKGROUND: Cancer survivors are at increased risk for atrial fibrillation (AF). However, data on the efficacy and safety of catheter ablation (CA) in this population remain limited. Therefore, we aimed to perform a systematic review and meta-analysis comparing outcomes after CA for AF in patients with versus without prior or active cancer. METHODS: We systematically searched PubMed, Cochrane Library, and Embase from inception to April 2023 for studies comparing the safety and efficacy of CA for AF in cancer survivors. Outcomes of interest were bleeding events, late AF recurrence, and need for repeat ablation. Statistical analyses were performed using Review Manager 5.4.1. We pooled odds ratios (OR) with 95% confidence intervals (CI) for binary endpoints. RESULTS: We included 5 retrospective cohort studies comprising 998 patients, of whom 41.4% had a history of cancer. Cancer survivors were at significantly higher risk of clinically relevant bleeding (OR 2.17; 95% CI 1.17-4.0; p=0.01) as compared with those without cancer. The efficacy of CA for AF was similar between groups. Late AF recurrence at 12 months was not significantly different between patients with vs. without a history of cancer (OR 1.29; 95% CI 0.78-2.13; p=0.32). Similar findings were observed in the outcome of repeat ablations (OR 0.71; 95% CI 0.37-1.37; p=0.31). CONCLUSIONS: These findings suggest that cancer survivors have an increased risk of bleeding after CA for AF relative to patients without cancer, with no significant difference in the efficacy of CA for maintenance of sinus rhythm between groups. STUDY REGISTRATION: This systematic review is registered in the International Prospective Register of Systematic Reviews (PROSPERO) under registration number CRD42023394538.

Efficacy of anti-amyloid-ß monoclonal antibody therapy in early Alzheimer's disease: a systematic review and meta-analysis.

BACKGROUND: Studies targeting amyloid-ß in patients with Alzheimer's disease (AD) have conflicting results and early initiation of therapy may yield better outcomes. METHODS: We systematically searched PubMed, Embase, Cochrane Library, and Clinicaltrials.gov for randomized trials comparing monoclonal antibodies (mAbs) with placebo in MCI or mild dementia due to AD. RESULTS: Nineteen studies comprising 15,275 patients were included. In patients with early AD, mAbs reduced the rate of decline, in both the Clinical Dementia Rating Scale, the sum of boxes (CDR-SB; MD -0.30; 95% CI -0.42,-0.19; p < 0.01), and the Alzheimer's Disease Assessment Scale, cognitive subscore (ADAS-cog; SMD -0.80; 95% CI -10.25,-0.35; p < 0.01). The results were similar between clinical stages for CDR-SB (MCI, MD -0.19; 95% CI -0.35,-0.03; p = 0.02; mild dementia, MD -0.45; 95% CI -0.65,-0.25; p < 0.01; subgroup differences, p = 0.13), as well as for ADAS-Cog (MCI, SMD -0.83; 95% CI -1.49,-0.17; p = 0.01; mild dementia, SMD -0.69; 95% CI -1.32 to -0.05; p = 0.03; subgroup differences, p = 0.47). The risk of amyloid-related imaging abnormalities (ARIA) was significantly higher in patients taking mAbs, including ARIA-edema (RR 7.7; 95% CI 4.60 to 13.00; p < 0.01), ARIA-hemorrhage (RR 1.8; 95% CI 1.22 to 2.59; p < 0.01), and symptomatic or serious ARIA (RR 14.1; 95% CI 7.30 to 27.14; p < 0.01). CONCLUSION: Anti-amyloid-ß mAbs attenuate cognitive and functional decline compared with placebo in early AD; whether the magnitude of this effect is clinically important remains uncertain, especially relative to the safety profile of these medications. Starting immunotherapy in patients with MCI was not significantly different than starting in the mild dementia stage. PROSPERO REGISTRY: CRD42023430698.

Misdiagnosis in multiple sclerosis in a Brazilian reference center: Clinical, radiological, laboratory profile and failures in the diagnostic process-Cohort study.

BACKGROUND: Multiple sclerosis misdiagnosis remains a problem despite the well-validated McDonald 2017. For proper evaluation of errors in the diagnostic process that lead to misdiagnosis, it is adequate to incorporate patients who are already under regular follow-up at reference centers of demyelinating diseases. OBJECTIVES: To evaluate multiple sclerosis misdiagnosis in patients who are on follow-up at a reference center of demyelinating diseases in Brazil. METHODS: We designed an observational study including patients in regular follow-up, who were diagnosed with multiple sclerosis at our specialized outpatient clinic in the Hospital of Clinics in the University of Sao Paulo, from 1996 to 2021, and were reassessed for misdiagnosis in 2022. We evaluated demographic information, clinical profile, and complementary exams and classified participants as "established multiple sclerosis," "non-multiple sclerosis, diagnosed," and "non-multiple sclerosis, undiagnosed." Failures in the diagnostic process were assessed by the modified Diagnostic Error Evaluation and Research tool. RESULTS: A total of 201 patients were included. After analysis, 191/201 (95.02%) participants were confirmed as "established multiple sclerosis," 5/201 (2.49%) were defined as "non-multiple sclerosis, diagnosed," and 5/201 (2.49%) were defined as "non-multiple sclerosis, undiagnosed." CONCLUSIONS: Multiple sclerosis misdiagnosis persists in reference centers, emphasizing the need for careful interpretation of clinical findings to prevent errors.

Appearance of a population of the mangrove rail Rallus longirostris (Rallidae) in salt marshes invaded by the exotic tanner grass Urochloa arrecta (Poaceae) and its disappearance after plant management.

Biological invasions cause species extinction but can also provide benefits. Wetlands, such as salt marshes, include little-known but important ecosystems that are sometimes severely invaded by exotic plants. Salt marshes in eastern South America are increasingly impacted by invasions of the African grass Urochloa arrecta. This study investigated the appearance of a population of the mangrove rail Rallus longirostris in areas dominated by U. arrecta and its disappearance with the eradication of this plant. We monitored four areas (54.47 ha) in the Guaratuba Bay estuary in southern Brazil, from 2006 to 2022, two of which contained four patches of U. arrecta as the dominant species. In 2012, we started to eradicate U. arrecta with mechanical management, and in 2020, it was eradicated locally. We recorded R. longirostris for the first time within a patch of U. arrecta in 2007. In subsequent years we saw the species in two other patches of the exotic plant. Rallus longirostris was no longer observed once U. arrecta was eradicated. Differences in patch occupancy between invaded and uninvaded habitats observed for R. longirostris and Pardirallus nigricans, and the disappearance of R. longirostris following the exotic plant management suggest competitive advantage and/or differential habitat preference and population density as hypotheses to explain observed patterns. The invasion of U. arrecta can increase the local populations of R. longirostris. Since this bird is not endangered, we encourage the management of U. arrecta because of its impact on salt marshes, including an endemic endangered bird. Supplementary information: The online version contains supplementary material available at 10.1007/s13157-022-01642-7.

Câncer que toma o corpo feminino: representações dialogadas / Cancer that takes the female body: dialogic representations / Cáncer que toma el cuerpo femenino: representaciones dialógicas

Objetivo: descrever os conteúdos representacionais de mulheres vivenciando o câncer feminino. Método: estudo descritivo, exploratório e qualitativo, realizado com 20 mulheres em um centro de oncologia. Os dados foram coletados por entrevistas semiestruturadas áudio-gravadas, transcritas na íntegra, analisadas de acordo com a análise de conteúdo de Bardin. Utilizou-se como referencial teórico a Teoria das Representações Sociais. Resultados: da análise, emergiram quatro categorias que traduziram os conteúdos representacionais das mulheres, permeados pelo sofrimento interno e ancorados em representações de morte e medo. As falas apontaram que a depressão se une à essas representações, refletindo nas tomadas de decisões. O apoio social e forma como a mulher recebe o diagnóstico tem influência decisiva nas representações construídas e tratamento. Conclusão: dentro das representações sociais que cada mulher apresenta existem significados que requerem um olhar minucioso para se prestar uma assistência individualizada e que compreenda os processos biopsicossociais vivenciados pela mulher enfrentando o câncer.

Objective: to describe the representational contents of women experiencing female cancer. Method: in this exploratory, qualitative, descriptive study of 20 women in an oncology center, data were collected through audio-recorded, semi-structured, fully transcribed interviews and analyzed using Bardin content analysis. Social Representations Theory was used as a theoretical framework. Results: from the analysis, four categories emerged that expressed the representational contents voiced by the women, which were permeated by inner suffering and anchored in representations of death and fear. Their words showed that depression is linked to these representations and reflects on decision-making. Social support and how women receive their diagnosis have decisive influence on the representations constructed and on treatment. Conclusion: within the social representations that each woman presented, were meanings that required thorough consideration in order to provide individualized care that contemplated the biopsychosocial processes experienced by women facing cancer.

Objetivo: describir los contenidos representativos de mujeres que padecen cáncer femenino. Método: estudio descriptivo, exploratorio y cualitativo, realizado junto a 20 mujeres en una unidad oncológica. Se recolectaron los datos fueron a través de entrevistas semiestructuradas grabadas en audio, transcritas en su totalidad, analizadas según el análisis de contenido de Bardin. Se utilizó la Teoría de las Representaciones Sociales como marco teórico. Resultados: del análisis surgieron cuatro categorías que tradujeron los contenidos representacionales de las mujeres, impregnados por el sufrimiento interno y anclados en representaciones de muerte y miedo. Las declaraciones mostraron que la depresión se une a estas representaciones, reflejándose en la toma de decisiones. El apoyo social y la forma cómo la mujer recibe el diagnóstico tiene influencia en las representaciones y el tratamiento. Conclusión: dentro de las representaciones que presenta cada mujer, existen significados que requieren una mirada profunda para brindar una atención individualizada que comprenda los procesos biopsicosociales que viven las mujeres frente al cáncer.

How to choose initial treatment in multiple sclerosis patients: a case-based approach.

BACKGROUND: Immunotherapy dramatically changed the natural history of multiple sclerosis (MS), which was classically associated with severe disability. Treatment strategies advocate that early control of disease activity is crucial to avoid progressive disability, and the use of high efficacy drugs may be beneficial, but safety is a concern. Choosing the disease-modifying therapy is challenging in clinical practice and should be further discussed. OBJECTIVE: To discuss the state of art of selecting the initial therapy for relapsing MS patients. METHODS: We used a case-based approach followed by clinical discussion, exploring therapeutic options in different MS settings. RESULTS: We presented clinical cases profile compatible with the use of MS therapies, classified into moderate and high efficacy. In the moderate efficacy group, we discussed interferons, glatiramer acetate, teriflunomide and dimethyl fumarate, while in the high efficacy group we discussed fingolimod, cladribine, natalizumab, ocrelizumab, alemtuzumab and ofatumumab. CONCLUSION: Advances in MS treatment are remarkable. Strong evidence supports the use of early high efficacy therapy. However, biomarkers, clinical and radiologic prognostic factors, as well as patients' individual issues, should be valued and considered for a personalized treatment decision.

Treatment and Survival Outcomes of Waldenstrom Macroglobulinemia in Latin American Patients: A Multinational Retrospective Cohort Study.

PURPOSE: Waldenstrom Macroglobulinemia (WM) is a rare lymphoma with distinct clinical features, and data from Latin American patients are lacking. Therefore, we aim to investigate the clinical, therapy, and outcome patterns of WM in Latin America. METHODS: We retrospectively analyzed patients with WM diagnosed between 1991 and 2019 from 24 centers in seven Latin American countries. The study outcomes were overall survival (OS) and progression-free survival (PFS). RESULTS: We identified 159 cases (median age 67 years, male 62%). Most patients (95%) were symptomatic at diagnosis. The International Prognostic Scoring System for WM (IPSSWM) at diagnosis was available in 141 (89%) patients (high-risk 40%, intermediate-risk 37%, and low-risk 23%). Twenty-seven (17%) patients were tested for MYD88L265P, with 89% (n = 24 of 27) carrying the mutation. First-line and second-line therapies were administered to 142 (89%) and 53 (33%) patients, respectively. Chemoimmunotherapy was the most commonly used first-line (66%) and second-line (45%) approach; only 18 (11%) patients received ibrutinib. With a median follow-up of 69 months, the 5-year OS rate was 81%. In treated patients, the 5-year OS and PFS rates were 78% and 59%, respectively. High-risk IPSSWM at treatment initiation was an independent risk factor for OS (adjusted hazard ratio: 4.73, 95% CI, 1.67 to 13.41, P = .003) and PFS (adjusted hazard ratio: 2.43, 95% CI, 1.31 to 4.50, P = .005). CONCLUSION: In Latin America, the management of WM is heterogeneous, with limited access to molecular testing and novel agents. However, outcomes were similar to those reported internationally. We validated the IPSSWM score as a prognostic factor for OS and PFS. There is an unmet need to improve access to recommended diagnostic approaches and therapies in Latin America.

How to choose initial treatment in multiple sclerosis patients: a case-based approach / Como escolher o tratamento inicial na esclerose múltipla: uma abordagem baseada em casos

ABSTRACT Background: Immunotherapy dramatically changed the natural history of multiple sclerosis (MS), which was classically associated with severe disability. Treatment strategies advocate that early control of disease activity is crucial to avoid progressive disability, and the use of high efficacy drugs may be beneficial, but safety is a concern. Choosing the disease-modifying therapy is challenging in clinical practice and should be further discussed. Objective: To discuss the state of art of selecting the initial therapy for relapsing MS patients. Methods: We used a case-based approach followed by clinical discussion, exploring therapeutic options in different MS settings. Results: We presented clinical cases profile compatible with the use of MS therapies, classified into moderate and high efficacy. In the moderate efficacy group, we discussed interferons, glatiramer acetate, teriflunomide and dimethyl fumarate, while in the high efficacy group we discussed fingolimod, cladribine, natalizumab, ocrelizumab, alemtuzumab and ofatumumab. Conclusion: Advances in MS treatment are remarkable. Strong evidence supports the use of early high efficacy therapy. However, biomarkers, clinical and radiologic prognostic factors, as well as patients' individual issues, should be valued and considered for a personalized treatment decision.

RESUMO Antecedentes: A imunoterapia mudou drasticamente a história natural da esclerose múltipla (EM), doença esta que era classicamente associada a grandes incapacidades. Sabe-se hoje que o controle precoce da atividade de doença é crucial para evitar incapacidade progressiva, e o uso de terapias de alta eficácia pode ser benéfico. Apesar disso, a segurança ainda é uma preocupação dos pacientes e médicos. A escolha da terapia modificadora da doença é um desafio na prática clínica e suas particularidades devem ser mais discutidas. Objetivo Discutir o estado da arte da seleção da terapia inicial para pacientes com EM remitente recorrente. Métodos Utilizamos uma abordagem baseada em casos clínicos, com discussão das diversas opções terapêuticas em diferentes contextos de EM. Resultados: Foram apresentados casos clínicos compatíveis com o uso das principais terapias para EM, divididas em moderada e alta eficácia. No grupo de moderada eficácia discutimos sobre os interferons, acetato de glatirâmer, teriflunomida e fumarato de dimetila enquanto que no de alta eficácia falamos sobre fingolimode, cladribina, natalizumabe, ocrelizumabe, alentuzumabe e ofatumumabe. Conclusão Os avanços no tratamento da EM são notáveis. Fortes evidências suportam que o uso de terapia de alta eficácia de forma precoce possa ser benéfica. No entanto, biomarcadores, fatores prognósticos clínicos e radiológicos, bem como questões individuais dos pacientes, devem ser valorizados e considerados para uma decisão de tratamento personalizado.

Perfil clínico-epidemiológico da dengue no município de anápolis - goiás entre os anos de 2016 a 2020 / Clinical-epidemiological profile of dengue in the municipality of anápolis - goiás from 2016 to 2020 / Perfil clínico-epidemiológico del dengue en el municipio de anápolis - goiás de 2016 a 2020

RESUMO Objetivo: descrever o perfil clínico epidemiológico da dengue em Anápolis, Goiás - BR entre os anos 2016 a 2020. Métodos: estudo descritivo de natureza quantitativa. Foram utilizados dados da ficha de notificação de dengue cadastrada no Departamento de Vigilância Epidemiológica. Utilizado o teste qui-quadrado com nível de significância cinco (5%) (p<0,05). Resultados: foram notificados 27.544 casos com o pico em 2019, sendo 54,2% do sexo feminino, faixa etária de 25 a 44 anos 36,7% e cor parda 70,3%. Dos casos ocorridos, 97,7% não foram hospitalizados, predominaram a dengue clássica em 98% e obteve-se cura em 99,9% dos casos. Houve diferença significativa em relação à faixa etária e à classificação da dengue, hospitalização e evolução clínica (p= 0,001). Conclusão: evidencia-se que a dengue é prevalente em Anápolis, sendo necessárias estratégias de prevenção e controle do vetor, principalmente, nos períodos de sazonalidade.

ABSTRACT Objective: to describe the clinical epidemiological profile of dengue in Anápolis, Goiás - BR between the years 2016 to 2020. Methods: descriptive study of a quantitative nature. Data from the dengue notification form registered in the Epidemiological Surveillance Department were used. Chi-square test was used with significance level five (5%) (p<0.05). Results: 27,544 cases were notified with the peak in 2019, being 54.2% female, age group 25 to 44 years 36.7% and brown color 70.3%. Of the cases that occurred, 97.7% were not hospitalized, classic dengue predominated in 98% and cure was obtained in 99.9% of cases. There was a significant difference regarding age group and dengue classification, hospitalization, and clinical evolution (p= 0.001). Conclusion: It is evident that dengue is prevalent in Anápolis, and strategies of prevention and control of the vector are necessary, especially during seasonal periods.

RESUMEN Objetivo: describir el perfil clínico epidemiológico del dengue en Anápolis, Goiás - BR entre los años 2016 a 2020. Métodos: estudio descriptivo de carácter cuantitativo. Se utilizaron datos de la ficha de notificación de dengue registrada en el Departamento de Vigilancia Epidemiológica. Se utilizó la prueba de chi-cuadrado con un nivel de significación del cinco (5%) (p<0,05). Resultados: Se notificaron 27.544 casos con el pico en 2019, siendo el 54,2% mujeres, el grupo de edad de 25 a 44 años el 36,7% y el color marrón el 70,3%. De los casos ocurridos, el 97,7% no fueron hospitalizados, el dengue clásico predominó en el 98% y se obtuvo la curación en el 99,9% de los casos. Hubo una diferencia significativa con respecto al grupo de edad y la clasificación del dengue, la hospitalización y la evolución clínica (p= 0,001). Conclusión: se evidencia que el dengue es prevalente en Anápolis, siendo necesarias estrategias de prevención y control del vector, principalmente, en los periodos de sazonalidad.

Análise das complicações clínico-obstétricas em gestantes adolescentes segundo a Classificação de Robson / Analyzing clinical obstetric complications in pregnant adolescents by the Robson / Classification Análisis de las complicaciones clínico-obstétricas en adolescentes embarazadas según la Clasificación de Robson

Objetivo: analisar as complicações obstétricas de gestantes adolescentes por meio da Classificação de Robson. Método: trata-se de uma pesquisa quantitativa documental. Foram pesquisados 150 prontuários de gestantes adolescentes de alto risco. O estudo foi de setembro a novembro/2019 e iniciou após a aprovação do Comitê de ética em Pesquisa da Universidade Federal de Alagoas. Resultados: as taxas de cesáreas do grupo 1 foram o dobro do recomendado (18,92%), pela Classificação de Robson. No grupo 2, houve 100% de cesárea, enquanto recomendação é de 20 a 35%. No grupo 4 observou-se 100% de parto vaginal, enquanto os grupos 5, 8 e 10 excederam o número de cesáreas em cerca de 15,40 a 20%. Conclusão: evidenciou-se, por meio da Classificação de Robson, que o tipo de parto das gestantes adolescentes que foram afetadas por uma complicação clínico-obstétrica foi o parto cesáreo, com aumento nos grupos de gestante 1, 2, 5, 8 e 10.

Objective: to analyze obstetric complications in pregnant adolescents using the Robson Classification. Method: in this quantitative study, 150 medical records of high-risk adolescent pregnant women were searched between September and November 2019, after approval by the research ethics committee of Alagoas Federal University. Results: by the Robson Classification, cesarean section rates in group 1 were twice as high as recommended (18.92%). Group 2 returned 100% cesarean section, while the recommendation is 20 to 35%; group 4 showed 100% vaginal deliveries; and, in groups 5, 8 and 10, these exceeded the number of cesarean sections by about 15.40 to 20%. Conclusion: using the Robson Classification, it was shown that pregnant adolescents affected by a clinical obstetric complication were delivered by cesarean sections, which increased in groups 1, 2, 5, 8 and 10.

Objetivo: analizar las complicaciones obstétricas en adolescentes embarazadas mediante la Clasificación de Robson. Método: se trata de una investigación cuantitativa documental. Se investigaron 150 historias clínicas de adolescentes embarazadas de alto riesgo. El estudio fue de septiembre a noviembre/2019 y se inició después de la aprobación del Comité de Ética en Investigación de la Universidad Federal de Alagoas. Resultados: Las tasas de cesáreas en el grupo 1 fueron el doble de lo recomendado (18,92%) según la clasificación. En el grupo 2, hubo 100% de cesáreas, mientras que la recomendación es del 20 al 35%. En el grupo 4, el 100% tuvo parto vaginal, mientras que los grupos 5, 8 y 10 superaron el número de cesáreas en aproximadamente del 15,40 al 20%. Conclusión: queda claro, a través de la Clasificación de Robson, que el tipo de parto de las adolescentes embarazadas que se vio afectado por una complicación clínico-obstétrica fue el cesáreo, con incremento en los grupos de embarazadas 1, 2, 5, 8 y 10.

BCL-2 Inhibition as Treatment for Chronic Lymphocytic Leukemia.

OPINION STATEMENT: At the end of the 1990s, with the advent of imatinib for chronic myeloid leukemia and rituximab for B cell lymphoproliferative diseases with CD20 expression, there was a great conceptual evolution in the treatment of onco-hematological diseases. Researchers from around the world and the pharmaceutical industry began to focus their efforts on the so-called target therapy used alone or associated with classic chemotherapeutic drugs. In chronic lymphocytic leukemia, the development of second-generation anti-CD20 antibodies, biosimilars, PI3K (phosphatidylinositol 3-kinases) inhibitors, BTK (Bruton's tyrosine kinase) inhibitors, and anti-bcl 2 drugs represented mainly by venetoclax brought new, broader, and more effective opportunities in the treatment of this disease. This breakthrough occurred mainly regarding patients with alteration in 17p or mutation of the p53 gene for whom selecting the new drugs that act on B cell signaling (BTK and PI3K inhibitors) in the first line is mandatory. In fit patients with immunoglobulin heavy chain mutation, it is still acceptable to use the chemotherapy regimen with fludarabine, cyclophosphamide, and rituximab (FCR) and, in those who do not fit or are not IgVH-mutated, bendamustine-rituximab regimen. However, the first-line use of ibrutinib or venetoclax associated with immunotherapy within the concepts of infinite (ibrutinib) or finite (venetoclax) treatment has been increasingly used. In the second line, venetoclax, ibrutinib, and idelalisib have become the preferred treatments. I believe that a process of instruction and decision shared with patients considering the risks-benefits-cost and access to treatments should guide the choices within these concepts. Another fundamental aspect to discuss is the objective of the treatment for chronic lymphocytic leukemia (CLL) for a specific patient: the increase progression-free survival and overall survival and/or the achievement of minimal residual disease. CLL is the most common leukemia in adults with a median age at diagnosis of 72 years. The clinical course is heterogeneous, and outcomes are influenced by individual clinical presentation and disease biology. Molecular and genomic factors, including fluorescence in situ hybridization (FISH) testing, karyotype, and immunoglobulin heavy chain variable region gene (IGHV) mutational status, are important to treatment decisions and to predict the clinical course. However, despite disease biology, the presence of active disease is the most important criteria to initiate treatment. In the past decade, target therapies that inhibit B cell receptor signaling pathways and, more recently, BCL2 antagonists have emerged as a new treatment paradigm: chemo-free with fixed duration therapy. Bruton's tyrosine kinase inhibitors (BTK) are a class of oral medications approved for frontline and relapsed disease, effective for achieving lasting response and disease control with a good safety profile. BTK inhibitors are an attractive option for high-risk patients who are not candidates for an intensive regimen. However, it is a continuous therapy, and drug resistance or severe adverse events could lead to treatment suspension. BCL2 antagonists are an attractive alternative to BTK inhibitors. Anti-apoptotic BCL2 is associated with tumor genesis and chemotherapy resistance. The BCl2, an anti-apoptotic protein located in the mitochondrial membrane, is a major contributor to the pathogenesis of lymphoid malignancies and is overexpressed in CLL cells promoting clonal cell survival. Venetoclax is a potent and selective member of the BH3 mimetic drugs and a physiologic antagonist of BCL2. Venetoclax has demonstrated quick and durable responses in naïve and relapsed or refractory CLL (r/r CLL) patients, including high-risk patients. Furthermore, it has shown deeper responses, achieving a higher incidence of negative minimal residual disease (MRD) with a fixed duration therapy. In the past decade, there was a remarkable progress in CLL treatment. However, neither of the new target therapies is considered curative or free of toxicity. This article will focus on the treatment approach of CLL patients with BCl2 antagonists. Treatment strategy (combined versus monotherapy; continuous versus limited duration therapy), toxicity profile, and future directions will be exposed in this review.

A review of the diagnosis and geographical distribution of the recently described flea toad Brachycephalus sulfuratus in relation to B. hermogenesi (Anura: Brachycephalidae).

BACKGROUND: The flea toad Brachycephalus sulfuratus was recently described from southeastern and southern Brazil. In its description, the authors overlooked previous records of flea toads that had been identified as "Brachycephalus sp. nov." and B. hermogenesi occurring in the same regions, which could suggest the possibility of up to three flea toads coexisting in southern Brazil. In addition, B. sulfuratus is characterized by substantial phenotypic variability, to an extent that compromises its current diagnosis with respect to its congener B. hermogenesi. Therefore, the current state-of-affairs regarding the geographical distribution of these two species and the identification of previously known populations is hitherto uncertain. Our goals are to reassess previous records of flea toads attributable to B. hermogenesi, B. sulfuratus and "Brachycephalus sp. nov.", considering the description of B. sulfuratus, and to review the diagnosis of B. sulfuratus. METHODS: A critical analysis of the species identity of flea toad specimens attributable to B. hermogenesi, B. sulfuratus, or to a potentially undescribed species from southeastern and southern Brazil was based either on the analysis of morphology or on their advertisement calls. These analyses include our independent examinations of specimens and, when not possible, examinations of published descriptions. To allow for a consistent comparison of advertisement calls between B. hermogenesi and B. sulfuratus, we made recordings of both species, including in the type locality of the former. RESULTS: We found that morphological and call characters originally proposed as diagnostic for B. sulfuratus in relation to B. hermogenesi vary intraspecifically. Live individuals with ventral yellow spots correspond to B. sulfuratus; individuals without yellow spots can be either B. sulfuratus or B. hermogenesi. In preservative, they are indistinguishable. Previous records of Brachycephalus sp. nov. correspond to B. sulfuratus. We propose that the reduced number of notes per call and the presence of only isolated notes in the call of B. sulfuratus, as opposed to a high number of notes per call with isolated notes and note groups in the call of B. hermogenesi, as the only diagnostic characters between them. Regarding their distributions and based in our assessment, only B. sulfuratus occurs in southern Brazil, without any overlap with B. hermogenesi. There is a narrow gap between the distributions of these species around the southeast of the city of São Paulo. Our revision also revealed that some records previously attributed to B. hermogenesi in Rio de Janeiro and north São Paulo represent a distinct, unidentified flea toad that is not B. sulfuratus. Both species occur side by side in Corcovado, São Paulo, a locality from where five paratypes of B. hermogenesi were obtained. Biogeographic events that might have led to vicariance between B. hermogenesi and B. sulfuratus are discussed.

Saúde mental dos estudantes de Medicina do Brasil durante a pandemia da coronavirus disease 2019 / Brazilian medical students mental health during coronavirus disease 2019 pandemic

RESUMO Objetivo: O objetivo desta pesquisa é verificar a prevalência de sintomas de sofrimento psíquico em estudantes do curso de Medicina durante a pandemia da COVID-19. Métodos: Trata-se de um estudo transversal e exploratório que avaliou 656 estudantes do curso de Medicina do Brasil. Os dados foram coletados, em maio e junho de 2020, por meio de dois instrumentos autoaplicáveis. O primeiro foi um questionário elaborado pelos próprios autores para avaliar o perfil social, demográfico e cultural da população. Para o rastreamento de indícios de sofrimento psíquico, utilizou-se o Self-Report Questionnaire, um questionário com 20 itens divididos em quatro domínios. Durante a análise de dados, as associações entre variáveis categóricas foram testadas por meio do teste qui-quadrado de Pearson. O nível de significância adotado foi de 5%. Resultados: A prevalência de indivíduos com indícios de sofrimento psíquico foi de 62,8%. São fatores de risco para o adoecimento mental durante a pandemia da COVID-19: ser do sexo feminino, estar nos dois primeiros anos do curso, relatar má adaptação ao ensino a distância, apresentar dificuldade de concentração, preocupar-se com o atraso da graduação, ter um diagnóstico prévio de transtorno mental, morar com alguém que precisa trabalhar fora de casa, ser incapaz de manter hábitos saudáveis e ter medo de ser infectado pelo vírus. Conclusão: Este estudo demonstrou que os indícios de sofrimento psíquico estão elevados entre estudantes de Medicina durante a pandemia da COVID-19. Além disso, também foi possível concluir que há fatores protetores para o adoecimento mental.

ABSTRACT Objective: The objective of the research is to verify the prevalence of psychological distress symptoms in medical students during the COVID-19 pandemic. Methods: This is a cross-sectional and exploratory study that evaluated 656 medical students in Brazil. Data were collected between May and June 2020, through two self-administered instruments. The first was a questionnaire prepared by the authors themselves to assess the social, demographic and cultural profile of the population. For the screening of signs of psychological distress, the Self-Report Questionnaire was used, a questionnaire with 20 items divided into four domains. During data analysis, associations between categorical variables were tested using Pearson's chi-square test. The significance level adopted was 5%. Results: The results show that the prevalence of individuals with signs of psychological distress was 62.8%. Risk factors for mental illness during the COVID-19 pandemic are being female, being in the first two years of the course, reporting poor adaptation to Distance Learning, having difficulty concentrating, worrying about the delay of graduation, have a previous diagnosis of mental disorder, live with someone who needs to work outside the home, inability to maintain healthy habits and fear being infected by the virus. Conclusion: We conclude that the signs of psychological distress are high among medical students during the COVID-19 pandemic. In addition, it was also possible to conclude that there are protective factors for mental illness.

Trabalho de parto prematuro: condições associadas / Premature delivery: associated conditions / Trabajo de entrega prematura: condiciones asociadas

Objetivo: identificar quais os fatores de risco/condições clínicas frequentemente estão associados ao trabalho de parto prematuro em uma maternidade referência para alto risco. Método: trata-se de um estudo quantitativo, descritivo, documental. Compreenderam-se, na população estudada, as gestantes com diagnóstico de trabalho de parto prematuro internadas na maternidade de um hospital público no período de junho a setembro de 2018. Resultados: identificou-se que, das 40 gestantes, 21 (52,5%) tinham de 20 a 34 anos e, em relação à paridade, 24 (60%) eram multigestas; dos casos que apresentaram alguma condição clínica associada ao diagnóstico de trabalho de parto prematuro, a Infecção do Trato Urinário foi a intercorrência mais incidente, correspondendo a 27 (65%) dos casos. Conclusão: constata-se que os fatores de risco mais incidentes para o desenvolvimento do trabalho de parto prematuro foram: a idade materna, a paridade e intercorrências como a Infecção do Trato Urinário. Visualizou-se que cabe, aos profissionais envolvidos no atendimento do pré-natal, prover suporte adequado para as mães e familiares, baseado na solidariedade e acolhimento, aliando também os saberes técnicos e científicos de modo que se reduza a morbimortalidade.(AU)

Objective: to identify which risk factors/clinical conditions are often associated with premature delivery in a reference maternity for high-risk pregnancies. Method: quantitative, descriptive, and documentary study. The population studied comprised pregnant women diagnosed with premature delivery and admitted to a public maternity hospital from June to September 2018. Results: of the 40 pregnant women, 21 (52.5%) were aged between 20 and 34 years old and, concerning parity, 24 (60%) were multiparous; of the cases that presented some clinical condition associated with premature delivery, urinary tract infection was the most incident complication with 27 (65%) cases. Conclusion: the most incident risk factors for premature delivery were maternal age, parity, and complications such as urinary tract infection. It was seen that the professionals involved in prenatal care are charged with the responsibility of providing adequate support for mothers and family members, based on solidarity and welcome, also combining technical and scientific knowledge to reduce morbidity and mortality.(AU)

Objetivo: identificar qué factores de riesgo / condiciones clínicas se asocian frecuentemente con el parto prematuro en una maternidad de referencia de alto riesgo. Método: se trata de un estudio cuantitativo, descriptivo, documental. En la población estudiada se entendió que las gestantes diagnosticadas de parto prematuro ingresaron en la maternidad de un hospital público de junio a septiembre de 2018. Resultados: se identificó que, de las 40 gestantes, 21 (52,5% ) tenían entre 20 y 34 años y, en relación a la paridad, 24 (60%) eran multigrávidas; de los casos que presentaron alguna condición clínica asociada al diagnóstico de parto prematuro, la Infección del Tracto Urinario fue la complicación más incidentes, correspondiendo a 27 (65%) de los casos. Conclusión: parece que los factores de riesgo más incidentes para el desarrollo de parto prematuro fueron: edad materna, paridad y complicaciones como Infección del Tracto Urinario. Se vio que corresponde a los profesionales involucrados en la atención prenatal brindar un apoyo adecuado a las madres y familiares, basado en la solidaridad y la acogida, combinando también los conocimientos técnicos y científicos con el fin de reducir la morbilidad y la mortalidad.(AU)