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2.
Int. arch. otorhinolaryngol. (Impr.) ; 27(3): 423-427, Jul.-Sept. 2023. tab
Article in English | LILACS-Express | LILACS | ID: biblio-1514251

ABSTRACT

Abstract Introduction Primary ciliary dyskinesia (PCD) is a rare inherited disease associated with impairment of mucociliary transport and, consequently, with a high incidence of chronic rhinosinusitis. For patients with chronic rhinosinusitis who remain symptomatic despite medical treatment, endoscopic sinus surgery is a safe and effective therapeutic option. However, to date, no studies have been found evaluating the effect of surgery on the quality of life associated with the effect on olfaction and nasal endoscopy findings of patients with primary ciliary dyskinesia and chronic rhinosinusitis. Objective To describe the effect of endoscopic sinus surgery on the quality of life, on olfaction, and on nasal endoscopy findings of adults with PCD and chronic rhinosinusitis. Methods Four patients who underwent endoscopic sinus surgery were included. The Sinonasal Outcome Test-22 (SNOT-22) score, the Nasal Obstruction Symptom Evaluation (NOSE) questionnaire, and the Lund-Kennedy score were collected preoperatively and at 3 and 6 months postoperatively. The olfaction as assessed with the University of Pennsylvania Smell Identification Test (UPSIT), which was administered preoperatively and 3 months postoperatively. Results A total of 4 patients with a mean age of 39.3 years old (3 men and 1 woman) completed the study. All patients showed clinically significant improvement in the SNOT-22, NOSE, and Lund-Kennedy scores at 3 months postoperatively, and this improvement was sustained throughout the follow-up period. However, olfaction did not improve after surgery. Conclusion The endoscopic sinus surgery treatment of chronic rhinosinusitis in adults with PCD was associated with improvement in quality of life and endoscopic findings. However, no improvement in olfaction was demonstrated. Studies with a larger number of patients and control groups should help confirm these findings.

3.
Int. arch. otorhinolaryngol. (Impr.) ; 27(1): 130-137, Jan.-Mar. 2023. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1421689

ABSTRACT

Abstract Introduction Primary ciliary dyskinesia is a rare inherited disease that results in a malfunction of mucociliary clearance and sinonasal complaints. Aplasia/hypoplasia of the frontal and sphenoid sinuses has been described as more frequent in this population. However, to date, no studies have provided a detailed description of computed tomography findings in adult patients with a diagnosis of this condition. Objective To describe the computed tomography (CT) findings of adult patients with primary ciliary dyskinesia. Methods Retrospective observational study of adult patients with primary ciliary dyskinesia who underwent CT. Results Twenty-one adults were included in the study. Aplasia occurred in 38.1% of frontal sinuses and in 14.3% of sphenoid sinuses. Likewise, hypoplasia occurred in 47.6% of the frontal sinuses, in 54.8% of the sphenoid sinuses and in 40.5% of the maxillary sinuses. Furthermore, trabecular loss was identified in 61.9% ethmoidal sinuses. The mean Lund-Mackay score was 13.5. In addition, 9.5% of the patients had concha bullosa, 47.6% had marked bilateral inferior turbinate hypertrophy, 38.1% had marked middle turbinate hypertrophy, and 47.6% had marked septal deviation. Finally, we identified images suggestive of fungus ball, mucocele, osteoma, a possible antrochoanal polyp, and frontal bone erosions. Conclusion The present study provides a detailed description of CT findings in patients with primary ciliary dyskinesia. We also describe abnormalities that must be identified for safer surgical planning and that suggest a diagnosis of primary ciliary dyskinesia if found in patients with a consistent clinical picture.

4.
J. bras. pneumol ; 49(6): e20230187, 2023. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1528915

ABSTRACT

ABSTRACT Objective: To evaluate the effect of treatment with the combination of three cystic fibrosis transmembrane conductance regulator (CFTR) modulators-elexacaftor+tezacaftor+ivacaftor (ETI)-on important clinical endpoints in individuals with cystic fibrosis. Methods: This was a systematic review and meta-analysis of randomized clinical trials that compared the use of ETI in individuals with CF and at least one F508del allele with that of placebo or with an active comparator such as other combinations of CFTR modulators, following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) recommendations and the Patients of interest, Intervention to be studied, Comparison of interventions, and Outcome of interest (PICO) methodology. We searched the following databases: MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov from their inception to December 26th, 2022. The risk of bias was assessed using the Cochrane risk-of-bias tool, and the quality of evidence was based on the Grading of Recommendations Assessment, Development and Evaluation (GRADE). Results: We retrieved 54 studies in the primary search. Of these, 6 met the inclusion criteria and were analyzed (1,127 patients; 577 and 550 in the intervention and control groups, respectively). The meta-analysis revealed that the use of ETI increased FEV1% [risk difference (RD), +10.47%; 95% CI, 6.88-14.06], reduced the number of acute pulmonary exacerbations (RD, −0.16; 95% CI, −0.28 to −0.04), and improved quality of life (RD, +14.93; 95% CI, 9.98-19.89) and BMI (RD, +1.07 kg/m2; 95% CI, 0.90-1.25). Adverse events did not differ between groups (RD, −0.03; 95% CI, −0.08 to 0.01), and none of the studies reported deaths. Conclusions: Our findings demonstrate that ETI treatment substantially improves clinically significant, patient-centered outcomes.


RESUMO Objetivo: Avaliar o efeito do tratamento com a combinação de três moduladores da proteína cystic fibrosis transmembrane conductance regulator (CFTR, reguladora de condutância transmembrana em fibrose cística) - elexacaftor + tezacaftor + ivacaftor (ETI) - sobre desfechos clínicos importantes em indivíduos com fibrose cística. Métodos: Revisão sistemática e meta-análise de ensaios clínicos randomizados que compararam o uso de ETI em indivíduos com fibrose cística com pelo menos um alelo F508del com o uso de placebo ou de um comparador ativo como outras combinações de moduladores da CFTR. O estudo foi realizado seguindo as recomendações Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) e a metodologia Patients of interest, Intervention to be studied, Comparison of interventions, and Outcome of interest (PICO). Foram realizadas buscas nos seguintes bancos de dados: MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials e ClinicalTrials.gov, desde a sua criação até 26 de dezembro de 2022. O risco de viés foi avaliado por meio da ferramenta de risco de viés da Cochrane, e a qualidade das evidências foi determinada com base no sistema Grading of Recommendations Assessment, Development and Evaluation (GRADE). Resultados: Foram identificados 54 estudos na busca primária. Destes, 6 preencheram os critérios de inclusão e foram analisados (1.127 pacientes: 577 pacientes intervenção e 550 pacientes controle). A meta-análise revelou que o uso de ETI aumentou o VEF1 em porcentagem do previsto [diferença de risco (DR): +10,47%; IC95%: 6,88-14,06], reduziu o número de exacerbações pulmonares agudas (DR: −0,16; IC95%: −0,28 a −0,04) e melhorou a qualidade de vida (DR: +14,93; IC95%: 9,98-19,89) e o IMC (DR: +1,07 kg/m2; IC95%: 0,90-1,25). Os eventos adversos não diferiram entre os grupos (DR: −0,03; IC95%: −0,08 a 0,01), e nenhum dos estudos relatou óbitos. Conclusões: Nossos achados demonstram que o tratamento com ETI melhora substancialmente os desfechos clinicamente significativos centrados no paciente.

5.
J. bras. pneumol ; 49(2): e20230040, 2023. tab
Article in English | LILACS-Express | LILACS | ID: biblio-1440430

ABSTRACT

ABSTRACT Cystic fibrosis (CF) is a genetic disease that results in dysfunction of the CF transmembrane conductance regulator (CFTR) protein, which is a chloride and bicarbonate channel expressed in the apical portion of epithelial cells of various organs. Dysfunction of that protein results in diverse clinical manifestations, primarily involving the respiratory and gastrointestinal systems, impairing quality of life and reducing life expectancy. Although CF is still an incurable pathology, the therapeutic and prognostic perspectives are now totally different and much more favorable. The purpose of these guidelines is to define evidence-based recommendations regarding the use of pharmacological agents in the treatment of the pulmonary symptoms of CF in Brazil. Questions in the Patients of interest, Intervention to be studied, Comparison of interventions, and Outcome of interest (PICO) format were employed to address aspects related to the use of modulators of this protein (ivacaftor, lumacaftor+ivacaftor, and tezacaftor+ivacaftor), use of dornase alfa, eradication therapy and chronic suppression of Pseudomonas aeruginosa, and eradication of methicillin-resistant Staphylococcus aureus and Burkholderia cepacia complex. To formulate the PICO questions, a group of Brazilian specialists was assembled and a systematic review was carried out on the themes, with meta-analysis when applicable. The results obtained were analyzed in terms of the strength of the evidence compiled, the recommendations being devised by employing the GRADE approach. We believe that these guidelines represent a major advance to be incorporated into the approach to patients with CF, mainly aiming to favor the management of the disease, and could become an auxiliary tool in the definition of public policies related to CF.


RESUMO A fibrose cística (FC) é uma doença genética que resulta em disfunção da proteína reguladora de condutância transmembrana da FC (CFTR), que é um canal de cloro e bicarbonato expresso na porção apical de células epiteliais de diversos órgãos. A disfunção dessa proteína resulta em manifestações clínicas diversas, envolvendo primariamente os sistemas respiratório e gastrointestinal com redução da qualidade e expectativa de vida. A FC ainda é uma patologia incurável, porém o horizonte terapêutico e prognóstico é hoje totalmente distinto e muito mais favorável. O objetivo destas diretrizes foi definir recomendações brasileiras baseadas em evidências em relação ao emprego de agentes farmacológicos no tratamento pulmonar da FC. As perguntas PICO (acrônimo baseado em perguntas referentes aos Pacientes de interesse, Intervenção a ser estudada, Comparação da intervenção e Outcome [desfecho] de interesse) abordaram aspectos relativos ao uso de moduladores de CFTR (ivacaftor, lumacaftor + ivacaftor e tezacaftor + ivacaftor), uso de dornase alfa, terapia de erradicação e supressão crônica de Pseudomonas aeruginosa, e erradicação de Staphylococcus aureus resistente a meticilina e do complexo Burkholderia cepacia. Para a formulação das perguntas, um grupo de especialistas brasileiros foi reunido e realizou-se uma revisão sistemática sobre os temas, com meta-análise quando aplicável. Os resultados encontrados foram analisados quanto à força das evidências compiladas, sendo concebidas recomendações seguindo a metodologia GRADE. Os autores acreditam que o presente documento represente um importante avanço a ser incorporado na abordagem de pacientes com FC, objetivando principalmente favorecer seu manejo, podendo se tornar uma ferramenta auxiliar na definição de políticas públicas relacionadas à FC.

6.
J. bras. pneumol ; 48(3): e20210367, 2022. tab
Article in English | LILACS-Express | LILACS | ID: biblio-1386043

ABSTRACT

ABSTRACT Objective: To assess the prevalence of the eosinophilic and allergic phenotypes of severe asthma in Brazil, as well as to investigate the clinical characteristics of severe asthma patients in the country. Methods: This was a cross-sectional study of adult patients diagnosed with severe asthma and managed at specialized centers in Brazil. The study was conducted in 2019. Results: A total of 385 patients were included in the study. Of those, 154 had a blood eosinophil count > 300 cells/mm3 and 231 had a blood eosinophil count of ≤ 300 cells/mm3. The median age was 54.0 years, and most of the patients were female, with a BMI of 29.0 kg/m2 and a history of allergy (81.6%). The prevalence of patients with a blood eosinophil count > 300 cells/mm3 was 40.0% (95% CI: 35.1-44.9), and that of those with a blood eosinophil count > 300 cells/mm3 and a history of allergy was 31.9% (95% CI: 27.3-36.6). Age and BMI showed positive associations with a blood eosinophil count > 300 cells/mm3 (OR = 0.97, p < 0.0001; and OR = 0.96, p = 0.0233, respectively), whereas the time elapsed since the onset of asthma symptoms showed an increased association with a blood eosinophil count > 300 cells/mm3 (OR = 1.02, p = 0.0011). Conclusions: This study allowed us to characterize the population of severe asthma patients in Brazil, showing the prevalence of the eosinophilic phenotype (in 40% of the sample). Our results reveal the relevance of the eosinophilic phenotype of severe asthma at a national level, contributing to increased effectiveness in managing the disease and implementing public health strategies.


RESUMO Objetivo: Avaliar a prevalência dos fenótipos eosinofílico e alérgico da asma grave no Brasil e investigar as características clínicas dos pacientes com asma grave no país. Métodos: Estudo transversal com pacientes adultos com diagnóstico de asma grave atendidos em centros especializados no Brasil. O estudo foi realizado em 2019. Resultados: Foram incluídos no estudo 385 pacientes. Destes, 154 apresentavam contagem de eosinófilos no sangue > 300 células/mm3 e 231 apresentavam contagem de eosinófilos no sangue ≤ 300 células/mm3. A mediana da idade foi de 54,0 anos, e a maioria dos pacientes era do sexo feminino, com IMC de 29,0 kg/m2 e história de alergia (81,6%). A prevalência de pacientes com contagem de eosinófilos no sangue > 300 células/mm3 foi de 40,0% (IC95%: 35,1-44,9), e a daqueles com contagem de eosinófilos no sangue > 300 células/mm3 e história de alergia foi de 31,9% (IC95%: 27,3-36,6). A idade e o IMC apresentaram associações positivas com contagem de eosinófilos no sangue > 300 células/mm3 (OR = 0,97, p < 0,0001 e OR = 0,96, p = 0,0233, respectivamente), ao passo que o tempo decorrido desde o início dos sintomas de asma apresentou associação aumentada com contagem de eosinófilos no sangue > 300 células/mm3 (OR = 1,02, p = 0,0011). Conclusões: Este estudo possibilitou a caracterização da população de pacientes com asma grave no Brasil, mostrando a prevalência do fenótipo eosinofílico (em 40% da amostra). Nossos resultados revelam a relevância do fenótipo eosinofílico da asma grave em nível nacional, contribuindo para aumentar a eficácia no manejo da doença e na implantação de estratégias de saúde pública.

8.
Einstein (Säo Paulo) ; 20: eRW5686, 2022. tab
Article in English | LILACS | ID: biblio-1364796

ABSTRACT

ABSTRACT Objective To develop a scientific consensus on nutrition in cystic fibrosis. Methods Sixteen coordinators elaborated relevant questions on nutritional therapy in cystic fibrosis, which were divided into six sections: nutritional assessment, nutritional recommendations, nutritional intervention, dietary counseling, special situations and enzyme replacement, and gastrointestinal manifestations. Two to three specialists in the field were responsible for each section and obtaining answers formulated based on standardized bibliographic searches. The available literature was searched in the PubMed®/MEDLINE database, after training and standardization of search strategies, to write the best level of evidence for the questions elaborated. Issues related to disagreement were discussed until a consensus was reached among specialists, based on the current scientific literature. Results Forty-two questions were prepared and objectively answered, resulting in a consensus of nutritional therapy in cystic fibrosis. Conclusion This work enabled establishing a scientific consensus for nutritional treatment of cystic fibrosis patients.


Subject(s)
Humans , Cystic Fibrosis/complications , Cystic Fibrosis/therapy , Brazil , Nutrition Assessment , Nutritional Status , Nutritional Support
11.
Rev. bras. ginecol. obstet ; 41(4): 230-235, Apr. 2019. tab
Article in English | LILACS | ID: biblio-1013602

ABSTRACT

Abstract Objectives To assess the perinatal and maternal outcomes of pregnant women with cystic fibrosis (CF) and severe lung impairment. Methods This was a series of cases aiming to review the maternal and fetal outcomes in cases of singleton pregnant women with a diagnosis of CF. We have included all of the cases of singleton pregnancy in patients with CF who were followed-up at the obstetrics department of the Medical School of the Universidade de São Paulo, between 2003 and 2016. The exclusion criteria were the unattainability of the medical records of the patient, and delivery at other institutions. A forced expiratory volume in 1 second < 50% was considered as severe lung impairment. We have also analyzed data regarding maternal hospitalization and respiratory exacerbations (REs). Results Pregnant women with CF and severe lung impairment did not present an association with spontaneous prematurity, fetal growth restriction or fetal demise. All of the cases involved multiple RE episodes requiring antibiotic therapy. The median (range) of events per patient was of 4 (2-4) events. Conclusion Cystic fibrosis patients with severe lung impairment may achieve successful term pregnancies. However, pregnancies of women with CF are frequently complicated by REs, and this population may require hospital admission during the course of the pregnancy. Cystic fibrosis patients should be followed by a specialized team with experience in treating respiratory diseases.


Resumo Objetivo Avaliar os desfechos maternos e perinatais de gestações em mulheres portadoras de fibrose cística (FC) e disfunção pulmonar grave. Métodos Série de casos visando a avaliação dos desfechos maternos e perinatais em gestações únicas de mulheres com diagnóstico de FC. Foram incluídos todos os casos de gestações únicas de pacientes comFC que tiveramacompanhamento no departamento de obstetrícia da Faculdade de Medicina da Universidade de São Paulo, no período de 2003 a 2016. Os critérios de exclusão foramnão disponibilidade do prontuário da paciente e parto em outro serviço. Disfunção pulmonar grave foi definida como presença de volume expiratório forçado em1 segundo < 50%. Foramanalisados tambémos dados referentes a exacerbações respiratórias e internações maternas. Resultados Gestação em mulheres portadoras de FC com disfunção pulmonar grave não se associaramcomprematuridade espontânea, restrição de crescimento fetal ou óbito fetal. Todos os casos apresentarammúltiplos episódios de exacerbações respiratórias necessitando de antibioticoterapia. A mediana de eventos por pacientes (intervalo) foi de 4 (2-4) eventos. Conclusão Mulheres portadoras de FC com disfunção pulmonar grave podem evoluir com gestações de termo bem sucedidas. Entretanto, gestações nestas pacientes são frequentemente complicadas por exacerbações respiratórias, necessitando de internação. Gestantes portadoras de FC devem ser acompanhadas por uma equipe especializada com experiência no manejo de doenças respiratórias.


Subject(s)
Humans , Female , Pregnancy , Adolescent , Adult , Young Adult , Pregnancy Complications/epidemiology , Cystic Fibrosis/epidemiology , Pregnancy Complications/mortality , Prenatal Care , Brazil/epidemiology , Pregnancy Outcome , Cystic Fibrosis/mortality , Fetal Death
12.
J. bras. pneumol ; 45(4): e20190122, 2019. tab, graf
Article in English | LILACS | ID: biblio-1012570

ABSTRACT

ABSTRACT Bronchiectasis is a condition that has been increasingly diagnosed by chest HRCT. In the literature, bronchiectasis is divided into bronchiectasis secondary to cystic fibrosis and bronchiectasis not associated with cystic fibrosis, which is termed non-cystic fibrosis bronchiectasis. Many causes can lead to the development of bronchiectasis, and patients usually have chronic airway symptoms, recurrent infections, and CT abnormalities consistent with the condition. The first international guideline on the diagnosis and treatment of non-cystic fibrosis bronchiectasis was published in 2010. In Brazil, this is the first review document aimed at systematizing the knowledge that has been accumulated on the subject to date. Because there is insufficient evidence on which to base recommendations for various treatment topics, here the decision was made to prepare an expert consensus document. The Brazilian Thoracic Association Committee on Respiratory Infections summoned 10 pulmonologists with expertise in bronchiectasis in Brazil to conduct a critical assessment of the available scientific evidence and international guidelines, as well as to identify aspects that are relevant to the understanding of the heterogeneity of bronchiectasis and to its diagnostic and therapeutic management. Five broad topics were established (pathophysiology, diagnosis, monitoring of stable patients, treatment of stable patients, and management of exacerbations). After this subdivision, the topics were distributed among the authors, who conducted a nonsystematic review of the literature, giving priority to major publications in the specific areas, including original articles, review articles, and systematic reviews. The authors reviewed and commented on all topics, producing a single final document that was approved by consensus.


RESUMO Bronquiectasias têm se mostrado uma condição cada vez mais diagnosticada com a utilização da TCAR de tórax. Na literatura, a terminologia utilizada separa as bronquiectasias entre secundárias à fibrose cística e aquelas não associadas à fibrose cística, denominadas bronquiectasias não fibrocísticas neste documento. Muitas causas podem levar ao desenvolvimento de bronquiectasias, e o paciente geralmente tem sintomas crônicos de vias aéreas, infecções recorrentes e alterações tomográficas compatíveis com a condição. Em 2010, foi publicada a primeira diretriz internacional sobre diagnóstico e tratamento das bronquiectasias não fibrocísticas. No Brasil, este é o primeiro documento de revisão com o objetivo de sistematizar o conhecimento acumulado sobre o assunto até o momento. Como para vários tópicos do tratamento não há evidências suficientes para recomendações, optou-se aqui pela construção de um documento de consenso entre especialistas. A Comissão de Infecções Respiratórias da Sociedade Brasileira de Pneumologia e Tisiologia reuniu 10 pneumologistas com expertise em bronquiectasias no Brasil para avaliar criticamente as evidências científicas e diretrizes internacionais, assim como identificar aspectos relevantes à compreensão da heterogeneidade da doença bronquiectásica e a seu manejo diagnóstico e terapêutico. Foram determinados cinco grandes tópicos (fisiopatologia; diagnóstico; monitorização do paciente estável; tratamento do paciente estável; e manejo das exacerbações). Após essa subdivisão, os tópicos foram distribuídos entre os autores, que realizaram uma revisão não sistemática da literatura, priorizando as principais publicações nas áreas específicas, incluindo artigos originais e de revisão, assim como revisões sistemáticas. Os autores revisaram e opinaram sobre todos os tópicos, formando um documento único final que foi aprovado por todos.


Subject(s)
Humans , Bronchiectasis/therapy , Bronchiectasis/diagnostic imaging , Consensus , Quality of Life , Respiratory Tract Infections/diagnosis , Respiratory Tract Infections/etiology , Respiratory Tract Infections/physiopathology , Respiratory Tract Infections/therapy , Brazil , Bronchiectasis/etiology , Bronchiectasis/physiopathology , Tomography, X-Ray Computed/methods , Chronic Disease , Disease Management
14.
J. bras. pneumol ; 45(3): e20170358, 2019. graf
Article in English | LILACS | ID: biblio-1040272

ABSTRACT

ABSTRACT Primary ciliary dyskinesia (PCD) is a genetic disorder that is typically inherited in an autosomal recessive manner. It is clinically characterized by recurrent respiratory infections. However, its repercussions for patient quality of life should not be overlooked. Studies have shown that PCD has a significant impact on the lives of patients, although there are as yet no PCD-specific markers of quality of life. To address that problem, researchers in the United Kingdom developed a quality-of-life questionnaire for patients with PCD. The present communication focuses on the process of translating that questionnaire into Brazilian Portuguese, through a partnership between researchers in Brazil and those in the United Kingdom, as well as its subsequent application in patients in Brazil.


RESUMO A discinesia ciliar primária (DCP) é uma doença genética de origem comumente autossômica recessiva. Caracteriza-se clinicamente por infecções respiratórias de repetição; porém, a repercussão na qualidade de vida desses pacientes deve ser levada em consideração. Estudos têm demonstrado um importante impacto da doença nesse quesito, mas ainda faltam marcadores de qualidade de vida específicos para DCP. Nesse sentido, foi desenvolvido o questionário de qualidade de vida em pacientes com DCP. O presente comunicado versa sobre o processo de tradução do questionário desenvolvido no Reino Unido para o português falado no Brasil através de uma parceria entre pesquisadores do Brasil e Reino Unido e sua posterior aplicação a pacientes brasileiros.


Subject(s)
Humans , Adult , Quality of Life , Translations , Surveys and Questionnaires/standards , Ciliary Motility Disorders/psychology , Algorithms , Brazil , Reproducibility of Results , Ciliary Motility Disorders/physiopathology , Language
15.
J. bras. pneumol ; 44(5): 424-432, Sept.-Oct. 2018. tab, graf
Article in English | LILACS | ID: biblio-975938

ABSTRACT

ABSTRACT The study of the human microbiome-and, more recently, that of the respiratory system-by means of sophisticated molecular biology techniques, has revealed the immense diversity of microbial colonization in humans, in human health, and in various diseases. Apparently, contrary to what has been believed, there can be nonpathogenic colonization of the lungs by microorganisms such as bacteria, fungi, and viruses. Although this physiological lung microbiome presents low colony density, it presents high diversity. However, some pathological conditions lead to a loss of that diversity, with increasing concentrations of some bacterial genera, to the detriment of others. Although we possess qualitative knowledge of the bacteria present in the lungs in different states of health or disease, that knowledge has advanced to an understanding of the interaction of this microbiota with the local and systemic immune systems, through which it modulates the immune response. Given this intrinsic relationship between the microbiota and the lungs, studies have put forth new concepts about the pathophysiological mechanisms of homeostasis in the respiratory system and the potential dysbiosis in some diseases, such as cystic fibrosis, COPD, asthma, and interstitial lung disease. This departure from the paradigm regarding knowledge of the lung microbiota has made it imperative to improve understanding of the role of the microbiome, in order to identify possible therapeutic targets and to develop innovative clinical approaches. Through this new leap of knowledge, the results of preliminary studies could translate to benefits for our patients.


RESUMO O estudo do microbioma humano - e, mais recentemente, o do sistema respiratório - através de sofisticadas técnicas de biologia molecular, desvendou a imensa diversidade de colonização microbiana nos seres humanos, sejam saudáveis, sejam portadores de diferentes doenças. Aparentemente, ao contrário do que se acreditava, existe uma colonização não patogênica dos pulmões por microrganismos, como bactérias, fungos e vírus. Esse microbioma pulmonar fisiológico apresenta uma densidade baixa de colônias, porém uma elevada diversidade; por outro lado, alguns estados patológicos levam a uma perda dessa diversidade, com aumento da concentração de alguns gêneros bacterianos em detrimento de outros. Ainda, além do conhecimento qualitativo das bactérias presentes no pulmão em diversos estados de saúde ou de doença, o conhecimento avança para o entendimento da interação que essa microbiota tem com o sistema imune local e sistêmico, modulando a resposta imunológica. Compreendendo essa intrínseca relação entre a microbiota e os pulmões, estudos apresentam novos conceitos sobre os mecanismos fisiopatogênicos da homeostase do sistema respiratório e a possível disbiose em estado de algumas doenças, como fibrose cística, DPOC, asma e doenças intersticiais. Essa quebra de paradigma do conhecimento da microbiota presente nos pulmões fez com que se torne premente entender melhor o papel do microbioma para identificar possíveis alvos terapêuticos e abordagens clínicas inovadoras. Através desse novo salto de conhecimento é que os resultados dos estudos preliminares poderão ser traduzidos em benefícios aos nossos pacientes.


Subject(s)
Humans , Dysbiosis/immunology , Microbiota/physiology , Immune System/microbiology , Lung/microbiology , Lung Diseases/microbiology
16.
J. bras. pneumol ; 44(5): 405-423, Sept.-Oct. 2018. tab, graf
Article in English | LILACS | ID: biblio-975948

ABSTRACT

ABSTRACT Community-acquired pneumonia (CAP) is the leading cause of death worldwide. Despite the vast diversity of respiratory microbiota, Streptococcus pneumoniae remains the most prevalent pathogen among etiologic agents. Despite the significant decrease in the mortality rates for lower respiratory tract infections in recent decades, CAP ranks third as a cause of death in Brazil. Since the latest Guidelines on CAP from the Sociedade Brasileira de Pneumologia e Tisiologia (SBPT, Brazilian Thoracic Association) were published (2009), there have been major advances in the application of imaging tests, in etiologic investigation, in risk stratification at admission and prognostic score stratification, in the use of biomarkers, and in the recommendations for antibiotic therapy (and its duration) and prevention through vaccination. To review these topics, the SBPT Committee on Respiratory Infections summoned 13 members with recognized experience in CAP in Brazil who identified issues relevant to clinical practice that require updates given the publication of new epidemiological and scientific evidence. Twelve topics concerning diagnostic, prognostic, therapeutic, and preventive issues were developed. The topics were divided among the authors, who conducted a nonsystematic review of the literature, but giving priority to major publications in the specific areas, including original articles, review articles, and systematic reviews. All authors had the opportunity to review and comment on all questions, producing a single final document that was approved by consensus.


RESUMO A pneumonia adquirida na comunidade (PAC) constitui a principal causa de morte no mundo. Apesar da vasta microbiota respiratória, o Streptococcus pneumoniae permanece como a bactéria de maior prevalência dentre os agentes etiológicos. Apesar da redução significativa das taxas de mortalidade por infecções do trato respiratório inferior nas últimas décadas, a PAC ocupa o terceiro lugar como causa de mortalidade em nosso meio. Desde a última publicação das Diretrizes Brasileiras sobre PAC da Sociedade Brasileira de Pneumologia e Tisiologia (SBPT; 2009), houve importantes avanços na aplicação dos exames de imagem, na investigação etiológica, na estratificação de risco à admissão e de escores prognósticos evolutivos, no uso de biomarcadores e nas recomendações de antibioticoterapia (e sua duração) e da prevenção por vacinas. Para revisar esses tópicos, a Comissão de Infecções Respiratórias da SBPT reuniu 13 membros com reconhecida experiência em PAC no Brasil que identificaram aspectos relevantes à prática clínica que demandam atualizações frente às novas evidências epidemiológicas e científicas publicadas. Foram determinados doze tópicos envolvendo aspectos diagnósticos, prognósticos, terapêuticos e preventivos. Os tópicos foram divididos entre os autores, que realizaram uma revisão de forma não sistemática da literatura, porém priorizando as principais publicações nas áreas específicas, incluindo artigos originais, artigos de revisão e revisões sistemáticas. Todos os autores tiveram a oportunidade de revisar e opinar sobre todas as questões, criando um documento único final que foi aprovado por consenso.


Subject(s)
Humans , Pneumonia, Viral/diagnostic imaging , Pneumonia, Bacterial/diagnostic imaging , Pneumonia, Viral/drug therapy , Societies, Medical , Brazil , Consensus Development Conferences as Topic , Community-Acquired Infections/drug therapy , Community-Acquired Infections/diagnostic imaging , Pneumonia, Bacterial/drug therapy , Evidence-Based Medicine , Anti-Bacterial Agents/therapeutic use
17.
J. bras. pneumol ; 43(4): 290-301, July-Aug. 2017. graf
Article in English | LILACS | ID: biblio-893854

ABSTRACT

ABSTRACT The treatment of COPD has become increasingly effective. Measures that range from behavioral changes, reduction in exposure to risk factors, education about the disease and its course, rehabilitation, oxygen therapy, management of comorbidities, and surgical and pharmacological treatments to end-of-life care allow health professionals to provide a personalized and effective therapy. The pharmacological treatment of COPD is one of the cornerstones of COPD management, and there have been many advances in this area in recent years. Given the greater availability of drugs and therapeutic combinations, it has become increasingly challenging to know the indications for, limitations of, and potential risks and benefits of each treatment modality. In order to critically evaluate recent evidence and systematize the major questions regarding the pharmacological treatment of COPD, 24 specialists from all over Brazil gathered to develop the present recommendations. A visual guide was developed for the classification and treatment of COPD, both of which were adapted to fit the situation in Brazil. Ten questions were selected on the basis of their relevance in clinical practice. They address the classification, definitions, treatment, and evidence available for each drug or drug combination. Each question was answered by two specialists, and then the answers were consolidated in two phases: review and consensus by all participants. The questions answered are practical questions and help select from among the many options the best treatment for each patient and his/her peculiarities.


RESUMO O tratamento da DPOC vem se tornando cada vez mais eficaz. Medidas que envolvem desde mudanças comportamentais, redução de exposições a fatores de risco, educação sobre a doença e seu curso, reabilitação, oxigenoterapia, manejo de comorbidades, tratamentos cirúrgicos e farmacológicos até os cuidados de fim de vida permitem ao profissional oferecer uma terapêutica personalizada e efetiva. O tratamento farmacológico da DPOC constitui um dos principais pilares desse manejo, e muitos avanços têm sido atingidos na área nos últimos anos. Com a maior disponibilidade de medicações e combinações terapêuticas fica cada vez mais desafiador conhecer as indicações, limitações, potenciais riscos e benefícios de cada tratamento. Com o intuito de avaliar criticamente a evidência recente e sistematizar as principais dúvidas referentes ao tratamento farmacológico da DPOC, foram reunidos 24 especialistas de todo o Brasil para elaborar a presente recomendação. Foi elaborado um guia visual para a classificação e tratamento adaptados à nossa realidade. Dez perguntas foram selecionadas pela relevância na prática clínica. Abordam a classificação, definições, tratamento e evidências disponíveis para cada medicação ou combinação. Cada pergunta foi respondida por dois especialistas e depois consolidadas em duas fases: revisão e consenso entre todos os participantes. As questões respondidas são dúvidas práticas e ajudam a selecionar qual o melhor tratamento, entre as muitas opções, para cada paciente com suas particularidades.


Subject(s)
Humans , Disease Management , Pulmonary Disease, Chronic Obstructive/drug therapy , Severity of Illness Index , Surveys and Questionnaires
18.
J. bras. pneumol ; 43(3): 219-245, May-June 2017. tab, graf
Article in English | LILACS | ID: biblio-893829

ABSTRACT

ABSTRACT Cystic fibrosis (CF) is an autosomal recessive genetic disorder characterized by dysfunction of the CFTR gene. It is a multisystem disease that most often affects White individuals. In recent decades, various advances in the diagnosis and treatment of CF have drastically changed the scenario, resulting in a significant increase in survival and quality of life. In Brazil, the current neonatal screening program for CF has broad coverage, and most of the Brazilian states have referral centers for the follow-up of individuals with the disease. Previously, CF was limited to the pediatric age group. However, an increase in the number of adult CF patients has been observed, because of the greater number of individuals being diagnosed with atypical forms (with milder phenotypic expression) and because of the increase in life expectancy provided by the new treatments. However, there is still great heterogeneity among the different regions of Brazil in terms of the access of CF patients to diagnostic and therapeutic methods. The objective of these guidelines was to aggregate the main scientific evidence to guide the management of these patients. A group of 18 CF specialists devised 82 relevant clinical questions, divided into five categories: characteristics of a referral center; diagnosis; treatment of respiratory disease; gastrointestinal and nutritional treatment; and other aspects. Various professionals working in the area of CF in Brazil were invited to answer the questions devised by the coordinators. We used the PubMed database to search the available literature based on keywords, in order to find the best answers to these questions.


RESUMO A fibrose cística (FC) é uma doença genética autossômica recessiva caracterizada pela disfunção do gene CFTR. Trata-se de uma doença multissistêmica que ocorre mais frequentemente em populações descendentes de caucasianos. Nas últimas décadas, diversos avanços no diagnóstico e tratamento da FC mudaram drasticamente o cenário dessa doença, com aumento expressivo da sobrevida e qualidade de vida. Atualmente, o Brasil dispõe de um programa de ampla cobertura para a triagem neonatal de FC e centros de referência distribuídos na maior parte desses estados para seguimento dos indivíduos. Antigamente confinada à faixa etária pediátrica, tem-se observado um aumento de pacientes adultos com FC tanto pelo maior número de diagnósticos de formas atípicas, de expressão fenotípica mais leve, assim como pelo aumento da expectativa de vida com os novos tratamentos. Entretanto, ainda se observa uma grande heterogeneidade no acesso aos métodos diagnósticos e terapêuticos para FC entre as diferentes regiões brasileiras. O objetivo dessas diretrizes foi reunir as principais evidências científicas que norteiam o manejo desses pacientes. Um grupo de 18 especialistas em FC elaborou 82 perguntas clínicas relevantes que foram divididas em cinco categorias: características de um centro de referência; diagnóstico; tratamento da doença respiratória; tratamento gastrointestinal e nutricional; e outros aspectos. Diversos profissionais brasileiros atuantes na área da FC foram convidados a responder as perguntas formuladas pelos coordenadores. A literatura disponível foi pesquisada na base de dados PubMed com palavras-chave, buscando-se as melhores respostas às perguntas dos autores.


Subject(s)
Humans , Male , Female , Cystic Fibrosis/diagnosis , Cystic Fibrosis/therapy , Practice Guidelines as Topic , Age Factors , Brazil , Evidence-Based Medicine , Nutritional Status , Physical Therapy Modalities , Quality of Life
19.
In. Kalil Filho, Roberto; Fuster, Valetim; Albuquerque, Cícero Piva de. Medicina cardiovascular reduzindo o impacto das doenças / Cardiovascular medicine reducing the impact of diseases. São Paulo, Atheneu, 2016. p.813-823.
Monography in Portuguese | LILACS | ID: biblio-971570
20.
J. bras. pneumol ; 41(2): 124-132, Mar-Apr/2015. tab, graf
Article in English | LILACS | ID: lil-745919

ABSTRACT

OBJECTIVE: Smoking prevalence is frequently estimated on the basis of self-reported smoking status. That can lead to an underestimation of smoking rates. The aim of this study was to evaluate the difference between self-reported smoking status and that determined through the use of objective measures of smoking at a pulmonary outpatient clinic. METHODS: This was a cross-sectional study involving 144 individuals: 51 asthma patients, 53 COPD patients, 20 current smokers, and 20 never-smokers. Smoking status was determined on the basis of self-reports obtained in interviews, as well as through tests of exhaled carbon monoxide (eCO) and urinary cotinine. RESULTS: All of the asthma patients and COPD patients declared they were not current smokers. In the COPD and asthma patients, the median urinary cotinine concentration was 167 ng/mL (range, 2-5,348 ng/mL) and 47 ng/mL (range, 5-2,735 ng/mL), respectively (p < 0.0001), whereas the median eCO level was 8 ppm (range, 0-31 ppm) and 5 ppm (range, 2-45 ppm), respectively (p < 0.05). In 40 (38%) of the patients with asthma or COPD (n = 104), there was disagreement between the self-reported smoking status and that determined on the basis of the urinary cotinine concentration, a concentration > 200 ng/mL being considered indicative of current smoking. In 48 (46%) of those 104 patients, the self-reported non-smoking status was refuted by an eCO level > 6 ppm, which is also considered indicative of current smoking. In 30 (29%) of the patients with asthma or COPD, the urinary cotinine concentration and the eCO level both belied the patient claims of not being current smokers. CONCLUSIONS: Our findings suggest that high proportions of smoking pulmonary patients with lung disease falsely declare themselves to be nonsmokers. The accurate classification of smoking status is pivotal to the treatment of lung diseases. Objective measures of smoking could be helpful in improving clinical management ...


OBJETIVO: O tabagismo autodeclarado é usado frequentemente para estimar a prevalência dessa condição. As taxas de tabagismo podem ser subestimadas por esse método. O objetivo deste estudo foi avaliar a diferença entre o tabagismo autodeclarado e o tabagismo determinado pelo uso de medidas objetivas em um ambulatório de doenças respiratórias. MÉTODOS: Estudo transversal realizado em 144 indivíduos: 51 pacientes com asma, 53 pacientes com DPOC, 20 fumantes e 20 não fumantes. O tabagismo foi determinado por meio de autorrelato em entrevistas e medição de monóxido de carbono no ar exalado (COex) e de cotinina urinária. RESULTADOS: Todos os pacientes com asma e DPOC declararam não ser fumantes. Nos pacientes com DPOC e asma, a mediana de concentração de cotinina urinária foi de 167 ng/ml (variação, 2-5.348) e de 47 ng/ml (variação, 5-2.735 ppm), respectivamente (p < 0,0001), enquanto . a mediana de COex foi de 8 ppm (variação, 0-31) e 5,0 ppm (variação, 2-45 ppm), respectivamente (p < 0,05). Em 40 (38%) dos pacientes com asma ou DPOC (n = 104), houve discordâncias entre o tabagismo autodeclarado e a concentração de cotinina urinária (> 200 ng/mL). Em 48 (46%) desses 104 pacientes, o não tabagismo autodeclarado foi refutado por um nível de COex > 6 ppm, considerado indicativo de fumo atual. Em 30 (29%) dos pacientes com asma ou DPOC, a concentração de cotinina urinária e o nível de COex contradisseram o autorrelato desses como não fumantes. CONCLUSÕES: Nossos achados sugerem que altas proporções de pacientes fumantes com doenças respiratórias declaram ser não fumantes. A classificação correta do tabagismo é fundamental no tratamento dessas doenças. Medidas objetivas do tabagismo podem ser úteis na melhora do manejo clínico e no aconselhamento. .


Subject(s)
Female , Humans , Male , Middle Aged , Asthma/epidemiology , Pulmonary Disease, Chronic Obstructive/epidemiology , Self Report , Smoking/epidemiology , Asthma/urine , Biomarkers/analysis , Brazil/epidemiology , Cross-Sectional Studies , Carbon Monoxide/analysis , Cotinine/urine , Prevalence , Pulmonary Disease, Chronic Obstructive/metabolism , Smoking/urine
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