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ABSTRACT BACKGROUND: Asthma is a chronic airway disease that affects 339 million people worldwide. It is a heterogeneous disease with different risks, including in family environments, where intimate partner violence occurs. OBJECTIVE: This study aimed to investigate the possible association between psychosocial factors and asthma control in adults exposed to intimate partner violence. DESIGN AND SETTING: This cross-sectional study was conducted at a Brazilian public higher education institution in Salvador, Bahia, Brazil. METHODS: The study population consisted of adults clinically diagnosed with severe asthma and those with mild/moderate asthma identified at an asthma referral outpatient clinic. The sample comprised 492 participants who underwent clinical evaluation and completed questionnaires to assess asthma control, depression, stress, and resilience. The Conflict Tactics Scale, which measures tactics for managing marital conflicts, was used to estimate the level of intimate partner violence. RESULTS: Of the 492 participants, 76.2% were women and 91% self-referenced color black/brown, 37.8% reported low family income, 87.4% reported low education level, 71.7% reported high stress, 32.5% reported low resilience, 18.5% reported moderate or severe depression, 83.3% reported resolute negotiation, 49.4% reported major psychological aggression, 19.6% reported major physical aggression, 15.5% reported major injury, and 7.3% reported major sexual coercion. Regression analysis revealed that sex was an effect modifier. CONCLUSION: Women in situations of social vulnerability, with low income and poor education, with depression, severe asthma, and those who used aggression to resolve marital conflicts had a profile associated with a lack of asthma control.

Abstract Background Vitamin D deficiency or insufficiency, has been associated with atopy and lack of asthma control. Our objective was to investigate associations between variants in genes of vitamin D pathway with serum levels of 25-hydroxyvitamin D (25(OH)D), atopy, asthma and asthma severity in teenagers from Northeast Brazil. Methods This is a cross sectional study nested in a cohort population of asthma. 25(OH)D was quantified from 968 of 11–17 years old individuals by ELISA. Asthma diagnosis was obtained by using the ISAAC Phase III questionnaire. Specific IgE was determined by ImmunoCAP; genotyping was performed using the 2.5 HumanOmni Biochip from Illumina. Statistical analyses were performed in PLINK 1.07 and SPSS 22.1. Results After quality control, 104 Single Nucleotides Variants (SNVs) in vitamin D pathway genes, typed in 792 individuals, were included in the analysis. The allele A of rs10875694 on VDR was positively associated with atopy (OR = 1.35; 95% CI 1.01–1.81). The allele C of rs9279 on VDR, was negatively associated with asthma risk (OR = 0.66; 95% CI 0.45–0.97), vitamin D insufficiency (OR = 0.78; 95% CI 0.70–0.96) and higher VDR expression. Two variants in VDR were associated with asthma severity, the allele A of rs2189480 (OR = 0.34; 95% CI 0.13–0.89) and the allele G of rs4328262 (OR = 3.18; 95% CI 1.09–9.28). The combination of variants in CYP2R1 and CYP24A1 (GAC, to rs10500804, rs12794714 and rs3886163, respectively) was negatively associated with vitamin D production (β = − 1.24; 95% CI − 2.42 to − 0.06). Conclusions Genetic variants in the vitamin D pathway affect vitamin D serum levels and, thus, atopy and asthma.

Objective: To evaluate the number of asthma deaths and the temporal trend of the asthma-specific mortality rate in children and adolescents up to 19 years of age in Brazil. Methods: This is an ecological time-series study of asthma deaths reported in Brazil, in the population up to 19 years of age, between 1996 and 2015. The specific asthma mortality rate and its temporal trend were analyzed. Results: There were 5014 deaths during the 20 years evaluated, with the majority, 68.1%, being recorded in children under 5 years of age. The specific asthma mortality rate ranged from 0.57/100,000 in 1997 to 0.21/100,000 in 2014, with a significant reduction of 59.8%. Regarding the place of death, 79.4% occurred in a hospital setting. In this sample, the adolescents had a 1.5-fold higher chance of death out-of-hospital than children up to nine years of age. There was no significant difference in the temporal trend between the genders and no significant decrease in out-of-hospital deaths. Conclusions: This study found a temporal trend for a reduction in asthma deaths over 20 years in children and adolescents in Brazil. Mortality rates varied across the geographic regions of the country and were higher in the Northeast. The prevalence of deaths under 5 years of age may be associated with the greater vulnerability of this age group in low-income countries. In adolescence, deaths outside the hospital environment are noteworthy. Asthma deaths are rare but unacceptable events, considering the treatable nature of the disease and the presence of avoidable factors in most of fatal outcomes. Resumo: Objetivo: Estimar o número de óbitos por asma e a tendência temporal da taxa de mortalidade por asma em crianças e adolescentes no Brasil. Métodos: Estudo ecológico de séries temporais em que foram avaliados os óbitos por asma ocorridos no Brasil entre 1996 e 2015, na população com até 19 anos. Foram analisadas a taxa de mortalidade específica por asma e a sua tendência temporal. Resultados: Ocorreram 5.014 óbitos, a maioria (68,1%) registrada em menores de cinco anos. Observou-se uma oscilação da taxa de mortalidade específica por asma entre 0,57 e 0,21/100.000 habitantes, o que correspondeu a uma redução de 59,8% no período. Quanto ao local dos óbitos, 79,4% ocorreram em ambiente hospitalar. Nesta amostra o adolescente teve 1,5 vez mais chance de óbito por asma fora do ambiente hospitalar do que as crianças até nove anos. Não foi observada diferença significativa da redução da tendência temporal entre os sexos e dos óbitos fora do ambiente hospitalar. Conclusões: Houve tendência temporal de redução da mortalidade por asma em crianças e adolescentes nos 20 anos avaliados. As taxas de mortalidade variaram nas diversas regiões geográficas do país, foram mais elevadas na Região Nordeste. O predomínio dos óbitos abaixo de cinco anos pode se associar a maior vulnerabilidade desse grupo em países de baixa renda. Na adolescência, ressaltam-se óbitos fora do ambiente hospitalar. As mortes por asma são eventos inaceitáveis, considera-se o caráter tratável da doença e a presença de fatores evitáveis na maioria dos desfechos fatais.

ABSTRACT Advances in the understanding that severe asthma is a complex and heterogeneous disease and in the knowledge of the pathophysiology of asthma, with the identification of different phenotypes and endotypes, have allowed new approaches for the diagnosis and characterization of the disease and have resulted in relevant changes in pharmacological management. In this context, the definition of severe asthma has been established, being differentiated from difficult-to-control asthma. These recommendations address this topic and review advances in phenotyping, use of biomarkers, and new treatments for severe asthma. Emphasis is given to topics regarding personalized management of the patient and selection of biologicals, as well as the importance of evaluating the response to treatment. These recommendations apply to adults and children with severe asthma and are targeted at physicians involved in asthma treatment. A panel of 17 Brazilian pulmonologists was invited to review recent evidence on the diagnosis and management of severe asthma, adapting it to the Brazilian reality. Each of the experts was responsible for reviewing a topic or question relevant to the topic. In a second phase, four experts discussed and structured the texts produced, and, in the last phase, all experts reviewed and approved the present manuscript and its recommendations.

ABSTRACT Objective To estimate the frequency of secondhand smoke exposure among patients with asthma. Methods A cross-sectional study of asthma patients and non-asthmatic controls using questionnaires to identify secondhand smoke exposure at home, school, work, and public places. Results We studied 544 severe asthma patients, 452 mild/moderate asthma patients, and 454 non-asthmatic patients. Among severe patients, the mean age was 51.9 years, 444 (81.6%) were female, 74 (13.6%) were living with a smoker, 383 (71.9%) reported exposure in public spaces and, of the 242 (44.5%) who worked/ studied, 46 (19.1%) reported occupational exposure. Among those with mild/moderate asthma, the mean age was 36.8 years, 351 (77.7%) were female, 50 (11.1%) reported living with a smoker, 381 (84.9%) reported exposure in public settings and, of the 330 (73.0%) who worked/ studied, 58 (17.7%) reported occupational exposure. An association between secondhand smoke exposure and disease control was found among patients with mild/moderate asthma. Among those interviewed, 71% of severe asthma patients and 63% of mild/moderate asthma patients avoided certain places due to fear of secondhand smoke exposure. Conclusion Secondhand smoke exposure is a situation frequently reported by a significant proportion of asthma patients. Individuals with asthma are exposed to this agent, which can hamper disease control, exacerbate symptoms and pose unacceptable limitations to their right to come and go in public settings.

ABSTRACT Objective: To determine the frequency of active smoking among patients with asthma and individuals without asthma by self-report and urinary cotinine measurement. Methods: This was a cross-sectional study conducted in the city of Salvador, Brazil, and involving 1,341 individuals: 498 patients with severe asthma, 417 patients with mild-to-moderate asthma, and 426 individuals without asthma. Smoking status was determined by self-report (with the use of standardized questionnaires) and urinary cotinine measurement. The study variables were compared with the chi-square test and the Kruskal-Wallis test. Results: Of the sample as a whole, 55 (4.1%) reported being current smokers. Of those, 5 had severe asthma, 17 had mild-to-moderate asthma, and 33 had no asthma diagnosis. Of the 55 smokers, 32 (58.2%) were daily smokers and 23 (41.8%) were occasional smokers. Urinary cotinine levels were found to be high in self-reported nonsmokers and former smokers, especially among severe asthma patients, a finding that suggests patient nondisclosure of smoking status. Among smokers, a longer smoking history was found in patients with severe asthma when compared with those with mild-to-moderate asthma. In addition, the proportion of former smokers was higher among patients with severe asthma than among those with mild-to-moderate asthma. Conclusions: Former smoking is associated with severe asthma. Current smoking is observed in patients with severe asthma, and patient nondisclosure of smoking status occurs in some cases. Patients with severe asthma should be thoroughly screened for smoking, and findings should be complemented by objective testing.

OBJECTIVE: To identify risk factors for death among patients with severe asthma. METHODS: This was a nested case-control study. Among the patients with severe asthma treated between December of 2002 and December of 2010 at the Central Referral Outpatient Clinic of the Bahia State Asthma Control Program, in the city of Salvador, Brazil, we selected all those who died, as well as selecting other patients with severe asthma to be used as controls (at a ratio of 1:4). Data were collected from the medical charts of the patients, home visit reports, and death certificates. RESULTS: We selected 58 cases of deaths and 232 control cases. Most of the deaths were attributed to respiratory causes and occurred within a health care facility. Advanced age, unemployment, rhinitis, symptoms of gastroesophageal reflux disease, long-standing asthma, and persistent airflow obstruction were common features in both groups. Multivariate analysis showed that male gender, FEV1 pre-bronchodilator < 60% of predicted, and the lack of control of asthma symptoms were significantly and independently associated with mortality in this sample of patients with severe asthma. CONCLUSIONS: In this cohort of outpatients with severe asthma, the deaths occurred predominantly due to respiratory causes and within a health care facility. Lack of asthma control and male gender were risk factors for mortality.

Para verificar as desigualdades sociais nas hospitalizações por doenças do aparelho respiratório em Salvador, Bahia, Brasil, 2001-2007, realizou-se estudo ecológico espacial, tendo como unidade de análise zonas de informação. Estas foram estratificadas considerando um indicador de condições de vida e analisadas por regressão de Poisson. A distribuição espacial das taxas de hospitalização por doenças do aparelho respiratório variou de 3,3 a 80,5/10 mil habitantes. Asma, pneumonia e doença pulmonar obstrutiva crônica (DPOC) apresentaram padrão espacial heterogêneo, no qual estratos de piores condições de vida apresentaram maior risco de ocorrência dessas internações. A taxa de hospitalização por doenças do aparelho respiratório foi 2,4 vezes maior no estrato de condições de vida muito baixas do que no primeiro estrato. Houve redução das desigualdades para pneumonia e aumento para asma e DPOC. A existência de forte gradiente social reforça a hipótese de que aspectos socioeconômicos são determinantes das hospitalizações por doenças do aparelho respiratório.

OBJETIVO: Comparar a percepção subjetiva do controle da asma informada pelo paciente com aquela obtida por meio do escore do Asthma Control Questionnaire com seis questões (ACQ-6) em pacientes com asma grave e verificar se o controle da asma está associado ao número de visitas a salas de emergência no mês anterior. MÉTODOS: Estudo transversal de 528 pacientes acompanhados na Central de Referência do Programa para Controle da Asma e Rinite Alérgica na Bahia, entre agosto de 2008 e março de 2010, em Salvador (BA). Os pacientes responderam ao ACQ-6 e a uma questão adicional específica para avaliar sua percepção do controle da doença na semana prévia. RESULTADOS: Foram avaliados 423 pacientes, que preencheram os critérios de inclusão. A maioria era do gênero feminino (81,3%) e possuía renda familiar menor que dois salários mínimos (64,3%). A média de idade foi de 49,85 ± 13,71 anos, e a duração dos sintomas de asma foi de 32,11 ± 16,35 anos. Os pacientes eram regularmente tratados no programa há 36,65 ± 18,10 meses. Baseados na percepção subjetiva do controle, 8% dos pacientes consideraram a sua asma não controlada, enquanto 38,8% obtiveram escore do ACQ > 1,5, indicando falta de controle. O coeficiente kappa revelou fraca concordância entre os dois métodos. Houve uma associação direta entre falta de controle e número de visitas a emergência no mês anterior (p < 0,001). CONCLUSÕES: Nesta amostra de pacientes, a percepção subjetiva do paciente sobre o controle da asma diferiu da medida por meio do ACQ-6, e os pacientes superestimaram seu controle, trazendo risco de subtratamento.OBJECTIVE: To compare the subjective perception of asthma control reported by the patient with that measured by the score obtained on the Asthma Control Questionnaire 6-item version (ACQ-6) in patients with severe asthma and to determine whether asthma control is associated with the number of emergency room visits in the previous month. METHODS: This was a cross-sectional study involving 528 patients treated at the Bahia State Asthma and Allergic Rhinitis Control Program Central Referral Clinic between August of 2008 and March of 2010, in the city of Salvador, Brazil. The patients completed the ACQ-6 and answered a specific additional question in order to evaluate their own perception of asthma control in the previous week. RESULTS: We evaluated 423 patients who met the inclusion criteria. The sample was predominantly female (81.3%), and 64.3% had an income lower than two times the national minimum wage. The mean age was 49.85 ± 13.71 years, and the duration of asthma symptoms was 32.11 ± 16.35 years. The patients had been regularly treated via the program for 36.65 ± 18.10 months. Based on the subjective perception of asthma control, only 8% of the patients considered their asthma to be uncontrolled, whereas 38.8% had an ACQ-6 score > 1.5, which indicates poor control. The kappa statistic revealed poor concordance between the two methods. There was a direct association between uncontrolled asthma and the number of emergency room visits in the previous month (p < 0.001). CONCLUSIONS: In this sample of patients, the subjective perception of asthma control differed from that measured by the ACQ-6 score, and the patients overestimated their own level of asthma control, which puts them at risk of being undertreated.

Respiratory diseases are the leading cause of hospitalizations in Brazil (excluding hospital admissions related to childbirth, pregnancy, and postpartum). To analyze the trend and seasonality of hospitalizations for respiratory diseases in Salvador, Bahia State, Brazil, 1998-2009, a time trend study was performed using simple linear regression. Hospitalization rates for all respiratory diseases and specifically for asthma, chronic obstructive pulmonary disease (COPD), and pneumonia were calculated by year and age group. Hospitalizations for all respiratory diseases decreased by 45.6% (β = -2.2; p < 0.001); those due to asthma showed the largest decline (annual average 1.2/10,000), pneumonia showed the largest reduction until 2002, subsequently tending to stabilize, and COPD remained unchanged. The under-5-year age group showed the largest decline in hospitalizations for all respiratory diseases. There was no seasonality in hospitalizations for COPD. There was a reduction in the burden of hospitalizations due to respiratory diseases in Salvador, mainly due to the drop in asthma and pneumonia in children < 5 years. However, the city still has hospitalization rates for respiratory diseases that are higher than in other large Brazilian cities.As doenças do aparelho respiratório são a principal causa de hospitalizações no Brasil, excluídas as relacionadas ao parto, gravidez e puerpério. Para analisar a tendência e sazonalidade das hospitalizações por doenças do aparelho respiratório em Salvador, Bahia, 1998-2009, realizou-se um estudo de série temporal mediante regressão linear simples. Calcularam-se as taxas de internação por doenças do aparelho respiratório, asma, doença pulmonar obstrutiva crônica (DPOC) e pneumonia, por ano e grupos de idade. As hospitalizações por doenças do aparelho respiratório reduziram 45,6% (β = -2,2; p < 0,001); aquelas por asma apresentaram maior declínio (média anual de 1,2/10.000); as por pneumonia exibiram queda mais acentuada até 2002, tendendo posteriormente à estabilidade; por DPOC permaneceram inalteradas. A faixa etária < 5 anos apresentou maior queda em todas as causas de doenças do aparelho respiratório. Não houve sazonalidade nas hospitalizações por DPOC. A carga de doenças do aparelho respiratório nas hospitalizações em Salvador reduziu, principalmente, devido à asma e pneumonia em < 5 anos, mas este município ainda apresenta taxas de hospitalização por estas causas mais elevadas que outras capitais brasileiras.

OBJETIVO: Avaliar o manuseio dos dispositivos pelos asmáticos graves acompanhados no Programa para o Controle da Asma e Rinite Alérgica na Bahia (ProAR), registrando a frequência dos seus erros em passos essenciais e a relação desses com a falta de controle da asma. MÉTODOS: Estudo de corte transversal com 467 pacientes em acompanhamento no ProAR, na cidade de Salvador (BA). Os dispositivos avaliados foram inalador dosimetrado (ID), em isolado ou com espaçador, e inalador de pó seco (IPS; Pulvinal® ou Aerolizer®). A avaliação da técnica inalatória foi realizada através de uma lista de verificação, sendo solicitado ao paciente que demonstrasse o uso para que um entrevistador observasse todos os passos realizados. Para a avaliação do controle da asma, utilizou-se o questionário de controle da asma com seis questões. RESULTADOS: A maioria dos pacientes demonstrou técnicas inalatórias adequadas no uso dos dispositivos. Poucos erros foram observados na etapa essencial "coordenar disparo e inspiração" no uso de ID isolado e com espaçador (em 5,2% e em 9,1% dos pacientes, respectivamente). No uso de Pulvinal®, 39% dos pacientes não realizaram uma inspiração rápida e profunda, comparados a somente 5,8% no uso de Aerolizer®. Dos pacientes que utilizavam apenas Aerolizer®, 71,3% realizaram adequadamente todos os passos essenciais e estavam controlados. CONCLUSÕES: A maioria dos pacientes desta amostra, os quais eram submetidos a verificações periódicas da técnica inalatória no programa, utilizavam adequadamente os dispositivos. A técnica inalatória adequada está associada ao controle dos sintomas.OBJECTIVE: To evaluate the use of inhaler devices by patients with severe asthma treated via the Programa para o Controle da Asma e Rinite Alérgica na Bahia(ProAR, Bahia State Asthma and Allergic Rhinitis Control Program), recording the frequency of their errors in performing key steps and the relationship between such errors and the lack of asthma control. METHODS: A cross-sectional study involving 467 patients enrolled in the ProAR in the city of Salvador, Brazil. The devices evaluated were metered dose inhalers (MDIs), with or without a spacer, and dry powder inhalers (DPIs; Pulvinal® or Aerolizer®). For the assessment of the inhalation technique, a checklist was used; the patients were asked to demonstrate the technique so that an interviewer could observe all of the steps performed. For the assessment of asthma control, we used the 6-item asthma control questionnaire. RESULTS: Most of the patients showed appropriate inhalation techniques when using the devices. When using an MDI, few patients made mistakes in the key step of "coordinating activation and inhalation" (5.2% and 9.1% with and without the use of a spacer, respectively). During Pulvinal® use, 39% of the patients did not inhale quickly and deeply, compared with only 5.8% during Aerolizer® use. Of the patients that made use of Aerolizer® alone, 71.3% appropriately performed all of the essential steps, and their asthma was controlled. CONCLUSIONS: Most of the patients in this sample, all of whom had been submitted to periodic checks of their inhalation technique (as part of the program), used the devices appropriately. Proper inhalation technique is associated with asthma symptom control.

Asthma is a chronic inflammatory disease of the airways that may lead to limitations in regular activities, to hospitalizations and a decrease in quality of life. Adherence to drug treatment is crucial for control of the disease. The use of medicinal herbs can reduce adherence to prescriptions, as the medication may be replaced by infusions or herbal products. The objective of this study was to evaluate the frequency of use of traditional herbal medicine among severe asthmatics in Salvador. Information on use of homemade remedies was obtained through application of a questionnaire during patient visits to a referral center. We also collected data on economic and social aspects as well as disease control. One hundred and forty-four (91,1%) out of one hundred and fifty-eight patients evaluated used herbal medicines, but only 26.5% attributed improvement of asthma symptoms to this alternative treatment and only 8 had substituted a prescribed medication by herbal medicines. There was a trend towards lower adherence to prescription drug treatment in this group of patients. Despite the high frequency of use of medicinal herbs in our sample, there was no improvement in the asthma treatment in this population compared to non-users. Adherence to conventional drug treatment was satisfactory and there was neither reduction in asthma control nor increase in hospitalizations among the users of medicinal plants.A asma é uma enfermidade inflamatória crônica das vias aéreas que pode resultar em limitações nas atividades diárias, internações e prejuízo da qualidade de vida. A adesão ao tratamento medicamentoso é fundamental para o controle da doença. O uso de plantas medicinais pode reduzir a adesão ao tratamento prescrito, à medida que os medicamentos são substituídos por chás ou ervas. O objetivo deste estudo foi avaliar a frequência de uso de plantas medicinais entre asmáticos graves em Salvador. As informações sobre uso de remédios caseiros foram obtidas por meio de questionário durante a visita dos pacientes a um centro de referência. Foram coletados dados econômicos, sociais e de controle da doença. Cento e quarenta e quatro (91,1%) dos cento e cinqüenta e oito pacientes avaliados utilizavam plantas medicinais, dos quais apenas 26,5% atribuíam melhora dos sintomas da asma a este tratamento alternativo e somente 8 pacientes já haviam feito a substituição de medicamento por alguma planta medicinal. Houve tendência a menor adesão ao tratamento medicamentoso neste grupo de pacientes. Apesar da alta frequência do uso de plantas medicinais na nossa amostra, não houve melhora no tratamento da asma desta população em relação aos não-usuários. A adesão ao tratamento medicamentoso foi satisfatória, não havendo piora no controle da asma ou aumento em hospitalizações entre os usuários de plantas medicinais.

OBJETIVO: Determinar a frequência de asma quase fatal em um grupo de pacientes com asma grave, assim como as características clínicas e o prognóstico desses pacientes em um ano de seguimento. MÉTODOS: Estudo prospectivo envolvendo 731 pacientes de baixa renda com asma grave tratados em um ambulatório de referência para asma na cidade de Salvador (BA). Os pacientes realizaram espirometria na admissão do estudo, receberam medicações para asma e foram monitorizados quanto à frequência de exacerbações durante o seguimento. Uma subamostra de 511 pacientes também respondeu questionários de sintomas e de qualidade de vida relacionada a asma. RESULTADOS: Dos 731 pacientes estudados, 563 (77%) eram do sexo feminino, com mediana de idade de 47 anos, e 12% não eram alfabetizados. A maioria dos pacientes apresentava rinite, e 70 (10%) relataram asma quase fatal antes da admissão. Desses 70 pacientes, 41 (59%) relataram terem sido intubados previamente. Os pacientes com asma quase fatal na admissão eram mais propensos a exacerbações de asma durante o acompanhamento e tiveram menor resposta ao tratamento do que aqueles sem asma quase fatal. Os resultados dos questionários no final do acompanhamento foram semelhantes nos dois grupos de pacientes. CONCLUSÕES: A frequência de asma quase fatal foi alta nesta população de pacientes com asma grave e de baixa renda. Os pacientes com histórico de asma quase fatal tiveram um pior prognóstico que aqueles sem esse histórico, embora tenham recebido o mesmo tratamento. Curiosamente, a intensidade dos sintomas e a qualidade de vida no final do estudo foram semelhantes entre os dois grupos de pacientes.OBJECTIVE: To determine the frequency of near-fatal asthma in a group of severe asthma patients, as well as the clinical characteristics and prognosis of these patients within a one-year follow-up period. METHODS: A prospective study involving 731 low-income patients with severe asthma treated at a referral outpatient clinic located in the city of Salvador, Brazil. The patients were submitted to spirometry at admission, received medications for asthma, and were monitored regarding the frequency of asthma exacerbations during the follow-up period. A subsample of 511 patients also completed questionnaires regarding asthma symptoms and asthma-related quality of life. RESULTS: Of the 731 patients studied, 563 (77%) were female. The median age was 47 years, and 12% were illiterate. Most of the patients had rhinitis, and 70 patients (10%) reported near-fatal asthma prior to admission. Of these 70 patients, 41 (59%) reported having been intubated previously. The patients reporting a history of near-fatal asthma at admission were more likely to have asthma exacerbations during the follow-up period and to respond poorly to therapy than were those not reporting such a history. At the end of the follow-up period, the scores on the two questionnaires were similar between the two groups of patients. CONCLUSIONS: The frequency of near-fatal asthma was high in this group of low-income patients with severe asthma. The patients with a history of near-fatal asthma had a worse prognosis than did those without such a history, although both groups had received the same kind of treatment. Curiously, the intensity of symptoms and the quality of life at the end of the study were similar between the two groups.

OBJETIVO: Determinar as características clínicas e os fatores preditores para hospitalizações por asma em crianças e adolescentes sob tratamento em um centro de referência para asma. MÉTODOS: Estudo de coorte retrospectiva com 151 crianças e adolescentes com asma, provenientes do Sistema Único de Saúde, recebendo tratamento gratuito e acompanhados durante 12 meses no centro de referência do Programa de Controle da Asma e Rinite Alérgica de Feira de Santana, em Feira de Santana (BA) Brasil. O teste do qui-quadrado foi utilizado para determinar a associação entre as variáveis estudadas e a ocorrência de hospitalizações, enquanto o teste de Mann-Whitney foi utilizado para a comparação entre os grupos de pacientes hospitalizados e não hospitalizados. O nível de significância adotado foi de p < 0,05. A análise univariada com regressão logística foi realizada para determinar os fatores preditores de hospitalização. RESULTADOS: Dos 151 pacientes do estudo, 8 (5,2%) foram hospitalizados com um total de 12 internações. O único fator preditor encontrado na análise univariada foi maior gravidade da asma (OR = 13,3; IC95%: 2,55-70,1). CONCLUSÕES: Devido ao fato de que, em nossa amostra, o principal fator preditor de hospitalização foi a maior gravidade da asma, essa condição requer atenção especial no cuidado a esses pacientes.OBJECTIVE: To determine the clinical characteristics and the predictors of hospital admission due to asthma among children and adolescents with asthma under treatment at a referral center. METHODS: A retrospective cohort study comprising 151 children and adolescents with asthma, referred from the Unified Health Care System and enrolled in the Asthma and Allergic Rhinitis Control Program in the city of Feira de Santana, Brazil, followed for a period of 12 months and receiving asthma medication at no cost. The chi-square test was used in order to determine the associations between the studied variables and the occurrence of hospital admissions, whereas the Mann-Whitney test was used for the comparison between the groups of hospitalized patients and nonhospitalized patients. The level of significance was set at p < 0.05. Univariate analysis with logistic regression was performed in order to determine the predictors of hospital admission. RESULTS: Of the 151 patients evaluated, 8 (5.2%) were hospitalized, in a total of 12 hospital admissions. In the univariate analysis, the only variable found to be a predictive factor was greater asthma severity (OR = 13.3; 95% CI: 2.55-70.1). CONCLUSIONS: The fact that, in our study sample, the principal predictor of hospital admission was greater asthma severity, calls for special attention being given to the care of these patients.

OBJETIVO: Estimar a distribuição dos padrões de gravidade da asma em uma amostra populacional de crianças em Salvador (BA). MÉTODOS: Questionário epidemiológico (International Study of Asthma and Allergies in Childhood - ISAAC) foi aplicado juntamente com questionário elaborado com base em critérios de gravidade adotados na prática clínica (Global Initiative for Asthma - GINA) em 417 crianças de 5 a 12 anos com sintomas de asma nos últimos 12 meses. Com base nas questões do ISAAC, as crianças foram classificadas em asma grave e não grave. De acordo com os critérios clínicos da GINA, quatro categorias de gravidade foram criadas: intermitente, persistente leve, persistente moderada e grave. RESULTADOS: Noventa crianças (22,3%) apresentaram indicadores de gravidade segundo o ISAAC. Com base nos critérios da GINA, havia 143 crianças com asma intermitente, 160 com asma leve persistente, 51 com asma moderada e 43 com asma grave. A concordância entre os dois questionários foi de 81,3%, com índice kappa de 0,5. CONCLUSÕES: A maioria das crianças asmáticas em Salvador possui asma persistente. Há bom nível de concordância na identificação da asma grave, entre a classificação epidemiológica e a clínica.OBJECTIVE: To estimate the distribution of asthma severity in a population-based sample of children from Salvador, Brazil. METHODS: An epidemiologically oriented questionnaire (International Study of Asthma and Allergies in Childhood, ISAAC) and a questionnaire based on criteria used in clinical practice (The Global Initiative for Asthma, GINA) were administered simultaneously to 417 children aged 5 to 12 years who reported symptoms of asthma in the past 12 months. According to the ISAAC instrument, children were classified into severe and non-severe asthma, whereas GINA clinical criteria produced four categories of severity: intermittent, mild persistent, moderate persistent and severe asthma. RESULTS: Ninety children reported symptoms indicative of severity according to the ISAAC questionnaire. According to GINA criteria, 143 children had intermittent asthma, 160 mild persistent, 51 moderate and 43 severe asthma. Agreement between the two instruments was 81.3% (kappa = 0.5). CONCLUSIONS: Most asthmatic children in the Salvador urban area have persistent asthma. Agreement between epidemiological and clinical classifications of asthma severity was satisfactory.

OBJETIVO: Desenvolver e validar uma versão do Asthma Control Test (ACT, Teste de Controle da Asma) em português para uso no Brasil. MÉTODOS: Foram estudados 290 pacientes ambulatoriais com asma maiores que 12 anos. Os pacientes responderam ao ACT e foram examinados por um pneumologista para avaliar o controle da asma em duas visitas. Na primeira visita, também realizaram prova de função pulmonar. A segunda visita foi realizada ao menos quatro semanas depois da primeira. RESULTADOS: Utilizando-se como ponto de corte um escore de 18 para diferenciar asma controlada de asma não controlada, foram encontradas sensibilidade de 93%, especificidade de 74%, valor preditivo negativo de 86% e valor preditivo positivo de 85%. As razões de verossimilhança positiva e negativa foram, respectivamente, 3,58 e 0,09. O questionário tem grande capacidade de discriminar asma controlada de asma não controlada, com uma área sob a curva ROC de 0,904. Os pacientes que mantiveram os sintomas estáveis na segunda avaliação tiveram pontuação semelhante no questionário, indicando uma boa reprodutibilidade teste-reteste, com um coeficiente de correlação intraclasse de 0,93. Os pacientes que melhoraram os sintomas na segunda avaliação tiveram pontuação do questionário significativamente melhor, indicando uma boa responsividade do questionário para identificar mudanças no controle da doença. CONCLUSÕES: A versão em português do ACT apresentou boa reprodutibilidade teste-reteste e foi capaz de discriminar o nível de controle da asma, assim como detectar mudanças no controle da asma em uma população de baixa escolaridade e renda familiar em um serviço público de saúde no Brasil.OBJECTIVE: To develop and validate a Portuguese-language version of the Asthma Control Test (ACT) for use in Brazil. METHODS: The study comprised 290 asthma outpatients over 12 years of age. The patients completed the ACT questionnaire and had an appointment with a pulmonologist in order to assess asthma control in two visits. In the first visit, the patients also underwent spirometry. The second visit took place at least four weeks later. RESULTS: We found that a cut-off score of 18 points-to differentiate between subjects with controlled asthma and those with uncontrolled asthma-had a sensitivity of 93%, a specificity of 74%, a negative predictive value of 86% and a positive predictive value of 85%. The positive and negative likelihood ratios were 3.58 and 0.09, respectively. The questionnaire has an outstanding capacity to differentiate uncontrolled asthma from controlled asthma, with an area under the ROC curve of 0.904. The patients whose symptoms remained stable between the two visits had similar scores, demonstrating good test-retest reproducibility, with an intraclass correlation coefficient of 0.93. The patients whose symptoms improved in the second visit had significantly higher scores, demonstrating good responsiveness of the questionnaire in the identification of changes in disease control. CONCLUSIONS: The Portuguese-language version of the ACT showed good test-retest reproducibility and was capable of discriminating the levels of asthma control and detecting changes in asthma control in a population of patients with a low level of education and low family income at a public health facility in Brazil.

OBJETIVO: Determinar os fatores de risco para atendimentos de emergência por exacerbações da asma em pacientes acompanhados em um centro de referência. MÉTODOS: Estudo de coorte prospectiva de 253 crianças e adultos com asma e monitorados por 12 meses no Centro de Referência do Programa de Controle da Asma e Rinite Alérgica de Feira de Santana, BA. RESULTADOS: As exacerbações foram frequentes, e 36,5% dos pacientes buscaram assistência em serviços de emergência no período de 12 meses. Os fatores de risco associados às exacerbações foram idade > 20 anos (OR = 1,34; IC95%: 1,06-1,70); residência em zona urbana (OR = 1,19; IC95%: 1,06-1,33); baixa escolaridade (OR = 1,53; IC95%: 1,00-2,39); asma grave (OR = 1,65; IC95%: 1,24-2,18); e rinite crônica (OR = 2,20: IC95%: 1,00-4,80). CONCLUSÕES: Ter de rinite crônica, asma mais grave e baixa escolaridade foram os principais fatores de risco para atendimentos de emergência por exacerbações da asma nesta coorte. Esses resultados são semelhantes àqueles descritos para pacientes com asma sem tratamento regular.OBJECTIVE: To determine the risk factors for ER visits due to asthma exacerbations in patients monitored at a referral center. METHODS: Prospective cohort study of 253 outpatients (children and adults) with asthma who were monitored for 12 months at the Referral Center of the Program for the Control of Asthma and Allergic Rhinitis in the city of Feira de Santana, Brazil. RESULTS: Exacerbations were common, and 36.5% of the patients sought ER treatment within the twelve-month period. The risk factors for asthma exacerbations were being over 20 years of age (OR = 1.34: (95% CI: 1.06-1.70), residing in an urban area (OR = 1.19; 95% CI: 1.06-1.33); having a low level of education (OR = 1.53: 95% CI: 1.00-2.39); having severe asthma (OR = 1.65; 95% CI: 1.24-2.18); and having chronic rhinitis (OR = 2.20; 95% CI: 1.00-4.80). CONCLUSIONS: In this cohort, having chronic rhinitis, having asthma that is more severe and having a low level of education were the main risk factors for ER visits due to asthma exacerbations. These results are similar to those reported for asthma patients who are receiving no regular treatment.

OBJETIVO: Avaliar o impacto do Programa de Controle da Asma e Rinite Alérgica em Feira de Santana (ProAR-FS) na frequência de hospitalizações por asma em pacientes acompanhados por um ano em um centro de referência. MÉTODOS: Estudo de controle histórico de 253 pacientes com asma, entre 4 e 76 anos idade, e admitidos consecutivamente. Comparou-se a frequência de internações e de atendimentos em emergência nos doze meses anteriores e posteriores à sua inclusão no ProAR-FS. Durante o programa, os pacientes receberam atendimento gratuito, incluindo medicação inalatória e educação em asma. Os aspectos demográficos e socioeconômicos também foram avaliados. RESULTADOS: Houve redução significativa no número de internações (463 vs. 21) e de atendimentos em emergência (2.473 vs. 184) após a matrícula no ProAR-FS (p < 0,001 para ambos). Dos 253 pacientes internados e atendidos na emergência no ano anterior à participação no ProAR-FS, apenas 16 foram novamente internados e 92 foram atendidos na emergência durante o ano de acompanhamento, correspondendo a uma redução de 94% e 64%, respectivamente. CONCLUSÕES: A implementação de um ambulatório de referência para o tratamento de asma e rinite no Sistema Público de Saúde, com o fornecimento de corticoide inalatório e o suporte de um programa de educação, é uma estratégia muito efetiva para o controle da asma.OBJECTIVE: To evaluate the impact of the Programa de Controle da Asma e Rinite Alérgica em Feira de Santana (ProAR-FS, Program for the Control of Asthma and Allergic Rhinitis in Feira de Santana) on the frequency of hospitalizations for asthma in patients monitored at a referral center for one year. METHODS: This was a historical control study involving 253 consecutive patients with asthma, ages ranging from 4 to 76 years. We compared the frequency of hospital admissions and visits to the emergency room (ER) in the 12 months prior to and after their admission to the ProAR-FS. During the program, patients received free treatment, including inhaled medications and education on asthma. Demographic and socioeconomic aspects were also assessed. RESULTS: There was a significant reduction in the number of hospitalizations (465 vs. 21) and of visits to the ER (2,473 vs. 184) after their admission to ProAR-FS (p < 0.001 for both). Of the 253 patients who had been hospitalized and had had ER visits within the year prior to the admission to ProAR-FS, only 16 were hospitalized and 92 visited the ER during the follow-up year, representing a reduction of 94% and 64%, respectively. CONCLUSIONS: Implementing a referral center for the treatment of asthma and rhinitis in the Unified Health Care System, with the free distribution of inhaled corticosteroids and the support of an education program, is a highly effective strategy for the control of asthma.

OBJETIVO: Determinar a taxa de adesão ao tratamento padrão com corticóide inalatório em pacientes com asma grave, identificar seus fatores preditores e avaliar a relação entre adesão ao tratamento e os parâmetros de resposta clínica e funcional. MÉTODOS: Coorte prospectiva de pacientes atendidos no Programa de Controle da Asma e da Rinite Alérgica na Bahia, Brasil. O estudo incluiu 160 pacientes com asma grave, acompanhados por um período de 180 dias para medida da adesão (variável dependente) ao corticóide inalatório prescrito. As variáveis independentes foram determinadas na avaliação inicial e durante seis meses através de entrevistas e aplicação de questionário estruturado. Os pacientes registraram em um diário as doses não utilizadas. RESULTADOS: Do total de 160 pacientes, 158 completaram o estudo. A taxa de adesão ao tratamento foi de 83,8%. Dos 158 pacientes, 112 (70,9%) foram considerados aderentes ao tratamento (ponto de corte: 80% de todas as doses administradas). Houve associação significante entre o controle da asma e adesão ao tratamento. Os fatores relacionados a uma baixa adesão foram efeitos adversos, local de residência distante do centro de referência, dificuldade de pagar pelo transporte e regime posológico. Outros fatores, como sintomas depressivos, religião e classe econômica, não tiveram relação com a adesão. CONCLUSÕES: A adesão ao tratamento foi considerada elevada, havendo relação com a resposta clínica ao tratamento em uma amostra de pacientes com asma grave atendidos em um programa público com fornecimento gratuito de medicamentos e atendimento multidisciplinar em unidade de referência.OBJECTIVE: To determine the rate of adherence to treatment with inhaled corticosteroids in patients with severe asthma, to identify predictive factors for adherence and to evaluate the relationship between adherence to treatment and parameters of clinical and functional response. METHODS: Prospective cohort study of patients enrolled in the Program for the Control of Asthma and Allergic Rhinitis in the state of Bahia, Brazil. The study comprised 160 patients with severe asthma, monitored for 180 days in order to evaluate adherence (dependent variable) to the prescribed inhaled corticosteroid. Independent variables were assessed at baseline and for a six-month follow-up period by means of interviews and the completion of a standardized questionnaire.Patients recorded the missed doses in a diary. RESULTS: Of the 160 patients. 158 completed the study. Adherence rate was 83.8%. Of the 158 patients, 112 (70.9%) were considered adherent (cut-off point: 80% of prescribed doses administered). There was a significant association between asthma control and adherence to treatment.Predictors of poor adherence were adverse effects, living far from the referral center, limited resources to pay for transportation and dose schedule. Other factors, such as depressive symptoms, religion and economic status, were not associated with poor adherence. CONCLUSIONS: Adherence to asthma treatment was high and was associated with the clinical response to treatment, in a sample of patients with severe asthma enrolled in a public program that provides free medication and the assistance of a multiprofessional specialized team in a referral center

OBJETIVO: Avaliar se a versão em língua portuguesa do Asthma Control Questionnaire (ACQ, Questionário de Controle da Asma) é um instrumento válido para medir o controle da asma em pacientes adultos ambulatoriais no Brasil. MÉTODOS: Foram avaliados 278 pacientes ambulatoriais com diagnóstico de asma. Todos os pacientes, durante a primeira visita, responderam ao questionário, foram submetidos à espirometria e avaliados clinicamente por um médico para a caracterização do controle da doença. Foram analisadas as versões do questionário com 5, 6 e 7 questões, utilizando dois escores distintos (0,75 e 1,50) como pontos de corte. RESULTADOS: Dos 278 pacientes, 77 (27,7%) tinham asma intermitente, 39 (14,0%) asma persistente leve, 40 (14,4%) asma persistente moderada e 122 (43,9%) asma persistente grave. A sensibilidade do questionário para identificar asma não-controlada variou de 77% a 99% e a especificidade variou de 36% a 84%. O valor preditivo positivo variou de 73% a 90%, e o valor preditivo negativo variou de 67% a 95%. A razão de verossimilhança positiva variou de 1,55 a 4,81, e a razão de verossimilhança negativa variou de 0,03 a 0,27. Nas versões do ACQ com 5 e 6 questões, o coeficiente de correlação intraclasse foi de 0,92, e estas versões foram responsivas a mudanças no quadro clínico dos pacientes. CONCLUSÕES: O ACQ, nas suas três versões, teve boa capacidade de discriminar indivíduos com asma não-controlada daqueles com asma controlada. As versões com 5 e 6 questões apresentaram também boa reprodutibilidade e responsividade. Trata-se, portanto, de um instrumento válido para avaliação do controle da asma em pacientes adultos ambulatoriais no Brasil.OBJECTIVE: To evaluate whether the Portuguese version of the Asthma Control Questionnaire (ACQ) is a valid instrument to measure asthma control in adult outpatients in Brazil. METHODS: We selected 278 outpatients diagnosed with asthma. All of the patients completed the questionnaire, underwent spirometry and were clinically evaluated by a physician in order to characterize the control of the disease in the first visit. The questionnaire was evaluated in three versions, with 5, 6 and 7 questions, respectively, and scores of 0.75 and 1.50 were used as cut-off points. RESULTS: Of the 278 patients, 77 (27.7%) had intermittent asthma, 39 (14.0%) had mild persistent asthma, 40 (14.4%) had moderate persistent asthma and 122 (43.9%) had severe persistent asthma. The sensitivity of ACQ to identify uncontrolled asthma ranged from 77% to 99%, and the specificity ranged from 36% to 84%. The positive predictive value ranged from 73% to 90%, and the negative predictive value ranged from 67% to 95%. The positive likelihood ratio ranged from 1.55 to 4.81, and the negative likelihood ratio ranged from 0.03 to 0.27. In the 5- and 6-question versions of the ACQ, the intraclass correlation coefficient was 0.92. These two versions were both responsive to clinical changes in the patients. CONCLUSIONS: All three versions of the ACQ satisfactorily discriminated between patients with uncontrolled asthma and those with controlled asthma. The 5- and 6-question versions also presented good reliability and responsiveness. Therefore, the ACQ is a valid tool for evaluating asthma control in adult outpatients in Brazil.

Este estudo teve como objetivo descrever as principais evidências encontradas na literatura acerca da inter-relação entre infecções helmínticas, atopia e asma. Foi feita uma revisão não sistemática da literatura. Encontramos numerosas publicações sobre o tema nas quais se verifica controvérsia quanto à capacidade das infecções por geohelmintos de inibir a reatividade ao teste alérgico cutâneo e os sintomas das doenças alérgicas. Por outro lado, estudos em pacientes infectados por Schistosoma spp., apesar de escassos, sugerem que estes helmintos são capazes de inibir a reatividade ao teste alérgico cutâneo e os sintomas de asma. Nos estudos in vitro, as evidências sugerem que as helmintíases inibem as respostas imunes mediadas por linfócitos T auxiliares do tipo 1 e 2, o que abre novas possibilidades terapêuticas para o tratamento de doenças do sistema imunológico.To describe the principal evidence in the literature regarding the interrelationship among helminth infections, atopy, and asthma, a nonsystematic review of the literature was conducted. Among the publications on the subject, we found a number in which there was controversy regarding the capacity of geohelminth infections to inhibit responsiveness to skin allergy tests and to minimize the symptoms of allergic diseases. However, although small in number, studies of patients infected with Schistosoma spp. suggest that these helminths can inhibit the responsiveness to skin allergy testing and minimize asthma symptoms. Evidence provided by in vitro studies suggests that helminthiases inhibit T helper 1- and T helper 2-type immune responses. This opens new therapeutic possibilities for the treatment of immune system diseases.

OBJETIVO: Quantificar a redução da utilização de recursos da saúde entre pacientes admitidos no Programa para o Controle da Asma e Rinite Alérgica na Bahia. MÉTODOS: Até o mês de janeiro de 2006 havia 1.405 pacientes inscritos no programa, em quatro centros de referência em Salvador (BA). Foram incluídos, na análise preliminar, 269 pacientes consecutivos com diagnóstico de asma grave e idade superior a doze anos. Os pacientes tinham assistência de pneumologistas, enfermeiros, farmacêuticos e psicólogos e recebiam medicações inalatórias para asma. Neste estudo observacional de coorte prospectivo, foram comparados os números de internações, de atendimentos em emergência, de ciclos de corticóide sistêmico e de dias de ausência da escola ou do trabalho por crise de asma, no ano anterior à admissão no programa, com base no relato dos pacientes, com o registro da ocorrência destes eventos no primeiro ano de acompanhamento no programa. RESULTADOS: Nesta amostra de pacientes com asma grave o programa resultou em redução significativa dos atendimentos de emergência (de 85%) e redução do número de internações hospitalares (de 90%). Houve também uma redução no número de dias de ausência da escola ou trabalho (de 86%) e no número de ciclos de corticóide sistêmico (de 67%). CONCLUSÃO: Um programa para o controle da asma grave em ambulatório de referência, incluindo assistência farmacêutica gratuita, permite acentuada redução no consumo de recursos do Sistema Único de Saúde.OBJECTIVE: To quantify the use of health care resources among patients enrolled in the Bahia State Asthma and Allergic Rhinitis Control Program. METHODS: As of January of 2006, 1405 patients had enrolled in the program, which is carried out in four referral centers in the city of Salvador. These patients formed the basis of this retrospective/prospective, observational cohort study. The preliminary analysis involved 269 consecutive patients, all above the age of 12 and diagnosed with severe asthma. After being seen by pulmonologists, nurses, pharmacologists and psychologists, the patients received inhaled asthma medications. Based on patient interviews and charts, the year preceding enrollment in the program was compared with the first year enrolled in the program in terms of the following quantifiable parameters: hospital admissions; emergency room visits; courses of oral corticosteroids; and days of school/work missed due to asthma attacks. RESULTS: In this sample of patients with severe asthma, enrollment in the program resulted in significant reductions in the number of emergency room visits and hospital admissions (of 85% and 90%, respectively). There were also reductions in the number of school/work days missed due to asthma attacks and in the number of courses of oral corticosteroids (of 86% and 67%, respectively). CONCLUSION: A program designed to control severe asthma in referral outpatient clinics and including pharmacological services at no charge can lead to a pronounced reduction in the demand for Unified Health Care System resources.

OBJETIVO: Determinar, através de análise de tomografia computadorizada, a freqüência de envolvimento dos seios paranasais em pacientes com rinite alérgica. MÉTODOS: Foram selecionados 60 pacientes ambulatoriais com diagnóstico de rinite alérgica e queixa de obstrução nasal. Os pacientes foram submetidos a rinoscopia anterior, aplicação de questionários para avaliação da intensidade dos sintomas, testes cutâneos para aeroalérgenos e tomografia computadorizada de seios paranasais. Foi utilizado o escore de Lund para caracterização do envolvimento tomográfico dos seios paranasais. RESULTADOS: Alteração tomográfica de seios paranasais ocorreu em 31 pacientes (52%). O somatório do maior diâmetro das reações cutâneas para aeroalérgenos, a intensidade dos sintomas de rinite e os achados à rinoscopia anterior não foram diferentes entre os pacientes com ou sem alteração tomográfica de seios paranasais. Todos os pacientes com envolvimento de seios paranasais apresentavam alterações em complexos osteomeatais, enquanto que apenas 11 pacientes sem envolvimento de seios paranasais apresentavam esta alteração (38%) (p < 0,01). CONCLUSÃO: A freqüência de alterações tomográficas dos seios paranasais nesta amostra de indivíduos adultos com rinite alérgica foi elevada e não se correlacionou com a intensidade dos sintomas nem com a reação cutânea a alérgenos, mas apenas com imagens de obstrução em complexo osteomeatal.OBJECTIVE: To evaluate, using computerized tomography, the frequency of paranasal sinus involvement in patients with allergic rhinitis. METHODS: From among outpatients diagnosed with rhinitis and complaining of nasal obstruction, 60 were selected for evaluation. The patients were submitted to anterior rhinoscopy, skin prick test for reactivity to aeroallergens and computed tomography of the paranasal sinuses. In addition, questionnaires designed to evaluate symptom severity were administered. The Lund score was used to evaluate paranasal sinus involvement on computed tomography scans. RESULTS: Computed tomography scans of the paranasal sinuses were abnormal in 31 patients (52%). The sum of the largest diameters of cutaneous reactions to the aeroallergens, symptom severity and anterior rhinoscopy findings did not differ between patients with paranasal sinus involvement and those without. All the patients with paranasal sinus abnormalities also presented osteomeatal complex abnormalities, whereas only 11 patients (38%) without paranasal sinus involvement presented such abnormalities (p < 0.01). CONCLUSION: In a sample of patients with allergic rhinitis, the frequency of paranasal sinus abnormalities on computed tomography scans was elevated and did not correlate with symptom severity or skin prick test reactivity but was correlated with osteomeatal complex obstruction.

OBJETIVO: Estimar a freqüência de doença intersticial pulmonar em um grupo de indivíduos com esclerose sistêmica progressiva e descrever suas características clínicas, funcionais e radiológicas. MÉTODOS: Após confirmação diagnóstica, 58 pacientes com esclerose sistêmica progressiva foram estudados com tomografia computadorizada de alta resolução, provas de função pulmonar, bem como pesquisa do anti-Scl 70. Foram feitas comparações entre os pacientes com e sem comprometimento intersticial pulmonar e pesquisados possíveis fatores preditivos deste acometimento através de análise multivariada. RESULTADOS: Do total, 51,7% apresentaram evidências de doença intersticial pulmonar na tomografia computadorizada de alta resolução. Dispnéia e tosse foram os sintomas mais relatados, (65,5% e 39,7%, respectivamente). Bronquiolectasias e faveolamento foram as anormalidades tomográficas mais comuns (83,3% e 80,0% respectivamente). Quando comparados com os indivíduos sem doença intersticial pulmonar, os pacientes com este acometimento apresentaram freqüência semelhante de sintomas pulmonares e extrapulmonares, porém apresentaram esclerose sistêmica progressiva de maior duração, estertores crepitantes mais freqüentes, maior positividade de anti-Scl 70, e capacidade vital forçada e pulmonar total reduzidas. Somente uma capacidade vital forçada < 80% apresentou tendência a predizer presença de doença intersticial pulmonar. CONCLUSÃO: Doença intersticial pulmonar foi freqüente neste grupo com esclerose sistêmica progressiva. Não ocorreu associação com sintomas. Houve associação entre doença intersticial pulmonar e presença de estertores crepitantes e anti-Scl 70. Contudo, somente redução da capacidade vital forçada foi preditora de doença intersticial pulmonar.OBJECTIVE: To estimate the frequency of interstitial lung disease in a group of patients with progressive systemic sclerosis, and to describe the clinical, functional and radiological characteristics of the patients studied. METHODS: Fifty-eight patients diagnosed with progressive systemic sclerosis were submitted to high-resolution computed tomography of the chest, pulmonary function tests and a blood test for anti-Scl 70 antibodies. Comparisons were drawn between patients with interstitial lung disease and those without. Logistic regression with multivariate analysis was used to identify factors predictive of interstitial lung disease. RESULTS: Of the 58 patients evaluated, 51.7% presented interstitial lung disease on high-resolution computerized tomography scans. Dyspnea and cough were the most common symptoms (seen in 65.5% and 39.7%, respectively). Bronchiolectasis and honeycombing were the most common tomographic abnormalities (observed in 83.3% and 80%, respectively). When compared to individuals without interstitial lung disease, patients with the condition had a comparable frequency of pulmonary and extrapulmonary symptoms but presented progressive systemic sclerosis of longer duration, a higher frequency of crackling rales, higher rates of anti-Scl 70 positivity, lower vital capacity and reduced total lung capacity. Only forced vital capacity < 80% was found to be a predictor of interstitial lung disease. CONCLUSION: Interstitial lung disease was common in this group of patients with progressive systemic sclerosis. No correlation with symptoms was found, although interstitial lung disease was found to correlate with crackling rales and with anti-Scl 70 positivity. Nevertheless, only reduced forced vital capacity was found to be predictive of interstitial lung disease.

Toxocara canis and T. cati are parasites of dogs and cats, respectively, that infect humans and cause human toxocariasis. Infection may cause asthma-like symptoms but is often asymptomatic and is associated with a marked eosinophilia. Previous epidemiological studies indicate that T. canis infection may be associated with the development of atopy and asthma.To investigate possible associations between Toxocara spp. seropositivity and atopy and childhood wheezing in a population of children living in non-affluent areas of a large Latin American city.The study was conducted in the city of Salvador, Brazil. Data on wheezing symptoms were collected by questionnaire, and atopy was measured by the presence of aeroallergen-specific IgE (sIgE). Skin prick test (SPT), total IgE and peripheral eosinophilia were measured. Toxocara seropositivity was determined by the presence of anti-Toxocara IgG antibodies, and intestinal helminth infections were determined by stool microscopy.Children aged 4 to 11 years were studied, of whom 47% were seropositive for anti-Toxocara IgG; eosinophilia >4% occurred in 74.2% and >10% in 25.4%; 59.6% had elevated levels of total IgE; 36.8% had sIgE≥0.70 kU/L and 30.4% had SPT for at least one aeroallergen; 22.4% had current wheezing symptoms. Anti-Toxocara IgG was positively associated with elevated eosinophils counts, total IgE and the presence of specific IgE to aeroallergens but was inversely associated with skin prick test reactivity.The prevalence of Toxocara seropositivity was high in the studied population of children living in conditions of poverty in urban Brazil. Toxocara infection, although associated with total IgE, sIgE and eosinophilia, may prevent the development of skin hypersensitivity to aeroallergens, possibly through increased polyclonal IgE and the induction of a modified Th2 immune reaction.

ABSTRACT Objective: To evaluate the relationship between obesity and asthma. Methods: This was a preliminary cross-sectional analysis involving 925 subjects with mild-to-moderate or severe asthma evaluated between 2013 and 2015. Obesity was defined on the basis of body mass index (BMI) and abdominal circumference. We collected clinical, laboratory, and anthropometric parameters, as well as pulmonary function test results and data regarding comorbidities. The subjects also completed asthma control and quality of life questionnaires. Results: Obese individuals had a significantly higher number of neutrophils in peripheral blood than did nonobese individuals (p = 0.01). Among the obese individuals, 163 (61%) had positive skin-prick test results, as did 69% and 71% of the individuals classified as being overweight or normal weight, respectively. Obese individuals showed lower spirometric values than did nonobese individuals, and 32% of the obese individuals had uncontrolled asthma, a significantly higher proportion than that found in the other groups (p = 0.02). Conclusions: Obese individuals with asthma seem to present with poorer asthma control and lower pulmonary function values than do nonobese individuals. The proportion of subjects with nonatopic asthma was higher in the obese group. Our results suggest that obese individuals with asthma show a distinct inflammatory pattern and are more likely to present with difficult-to-control asthma than are nonobese individuals.

ABSTRACT Objective: To evaluate oral health-related quality of life (OHRQoL) among individuals with severe asthma, comparing it with that observed among individuals with mild-to-moderate asthma and individuals without asthma. Methods: We conducted a cross-sectional study of 125 individuals: 40 with severe asthma; 35 with mild-to-moderate asthma; and 50 without asthma. We calculated the decayed, missing, and filled teeth (DMFT) index, as well as the Periodontal Screening and Recording index, and determined the stimulated salivary flow rate. We applied three structured questionnaires: the 14-item Oral Health Impact Profile (OHIP-14); the Medical Outcomes Study 36-Item Short-Form Health Survey, version 2 (SF-36v2); and the Work Ability Index (WAI). Results: Periodontitis and reduced salivary flow were both more common in the severe asthma group than in the mild-to-moderate asthma and no-asthma groups. In addition, the WAI scores were lower in the severe asthma group than in the mild-to-moderate asthma and no-asthma groups, as were the scores for all SF-36v2 domains. The individuals with severe asthma also scored lower for the OHIP-14 domains than did those without asthma. Although the mean DMFT index did not differ significantly among the groups, the mean number of missing teeth was highest in the severe asthma group. Strong correlations between the SF-36v2 Component Summaries and poorer OHRQoL were only observed in the severe asthma group. Conclusions: Severe asthma appears to be associated with poorer oral health, poorer OHRQoL, a lower WAI, and lower scores for SF-36v2 domains.

RESUMO Objetivo Descrever características clínicas e identificar fatores associados a maior gravidade da asma, em uma amostra de pacientes acompanhados em um centro de referência em Salvador. Métodos Estudo transversal de 473 adultos, acompanhados regularmente no Programa para Controle da Asma na Bahia (ProAR), reavaliados de forma sistemática entre 2013 e 2015. Os pacientes foram admitidos por preencher critérios anteriores de asma grave e reclassificados de acordo com a definição mais atual, proposta por um documento conjunto da European Respiratory Society/American Thoracic Society (ERS/ATS 2014). Resultados Foram reclassificados como portadores de asma grave pelos critérios da ATS/ERS (AG-ERS/ATS) 88/473 (18%). Destes, 87% eram mulheres, 48% obesos, com mediana do índice de massa corporal (IMC) de 29 kg/m2 (IQ 26-34), 99% tinham sintomas de rinite crônica e 83%, sintomas de doença do refluxo gastroesofágico (DRGE). Nenhum se declarou fumante atual. Os principais corticosteroides inalatórios utilizados foram beclometasona (88%) e budesonida (69%). A maioria relatou adequada adesão (77%) e a minoria das avaliações (0,6%) revelou erros graves na técnica inalatória. A mediana do volume expiratório forçado no primeiro segundo pós-broncodilatador (VEF1pós-BD) foi 67% do predito (IQ 55-80). A mediana do número de eosinófilos no sangue periférico foi menor nos pacientes com AG-ERS/ATS [209 células/mm3 (IQ 116-321)] do que nos demais pacientes estudados [258 células/mm3 (IQ 154-403)]. Sintomas de doença do refluxo gastroesofágico (DRGE) foram associados a mais gravidade [OR = 2,2; IC95% (1,2-4,2)]. Conclusões Neste grupo de pacientes, sintomas de RGE foram associados a AG-ERS/ATS e contagem de eosinófilos > 260 células/mm3 esteve associada a 42% menos chance de AG-ERS/ATS.

RESUMO: Objetivo: Comparar a evolução dos indicadores referentes à asma nas edições da Pesquisa Nacional de Saúde do Escolar (PeNSE) 2012 e 2015. Métodos: Estudo transversal em que foram incluídos escolares do nono ano de escolas públicas e privadas das capitais brasileiras. Para saber se o escolar teve chiado no peito nos 12 meses anteriores ao inquérito, foi feita a pergunta: “Nos últimos 12 meses, você teve chiado (ou piado) no peito?” (sim/não). E para saber se teve asma alguma vez na vida foi questionado: “Você teve asma alguma vez na vida?” (sim/não). Resultados: Verificou-se que 23,52% dos estudantes relataram chiado ou piado no peito nos ultimos 12 meses, variando de 16,80% em Salvador (Bahia) a 27,43% em Porto Alegre (Rio Grande do Sul). Ter asma alguma vez na vida foi relatado por 17,92% dos estudantes, variando de 13,98% em Campo Grande (Mato Grosso do Sul) a 30,35% em Porto Alegre (Rio Grande do Sul). Também foi verificada redução da prevalência de chiado (ou piado) no peito nos últimos 12 meses, entre as duas pesquisas (PeNSE 2012 e 2015) em 20 das 27 capitais do Brasil, com destaque para Belo Horizonte, Florianópolis, Cuiabá e Goiânia. Por outro lado, houve aumento da prevalência daqueles que relataram asma alguma vez na vida em 26 das 27 capitais do país. Conclusão: Houve tendência à redução dos sintomas de asma nos últimos 12 meses, enquanto se observa aumento na proporção de adolescentes em que a asma foi referida alguma vez na vida. De certo que o monitoramento da asma ao longo dos anos é imprescindível para gerar conhecimentos e embasar políticas públicas de controle da asma.

OBJECTIVE: This study aims to describe the prevalence rates of asthma symptoms in Brazil, its Regions and State capitals, according to data from the National Adolescent School-based Health Survey, 2012. Furthermore, it aims to compare the prevalence of asthma in the capitals evaluated by PeNSE 2012 with previous results of the International Study of Asthma and Allergies in Childhood (ISAAC). METHODS: Cross sectional study of 9th grade students at public and private schools of all Brazilian states and the Federal District (Brasília). A self reported questionnaire containing items from the ISAAC was applied in order to identify the presence of asthma symptoms. RESULTS: The results of PeNSE indicate a high prevalence of asthma symptoms (23.2%) and of reports of a previous medical diagnosis of asthma (12.4%). Of the five state capitals in which the PeNSE results were compared to the ISAAC, São Paulo, Curitiba and Porto Alegre presented an increase in the prevalence of asthma symptoms. In Salvador, there was a reduction. CONCLUSION: Brazil is among the countries with the highest prevalence of asthma in the world, and the prevalence is still growing.

ABSTRACT The pharmacological management of asthma has changed considerably in recent decades, as it has come to be understood that it is a complex, heterogeneous disease with different phenotypes and endotypes. It is now clear that the goal of asthma treatment should be to achieve and maintain control of the disease, as well as to minimize the risks (of exacerbations, disease instability, accelerated loss of lung function, and adverse treatment effects). That requires an approach that is personalized in terms of the pharmacological treatment, patient education, written action plan, training in correct inhaler use, and review of the inhaler technique at each office visit. A panel of 22 pulmonologists was invited to perform a critical review of recent evidence of pharmacological treatment of asthma and to prepare this set of recommendations, a treatment guide tailored to use in Brazil. The topics or questions related to the most significant changes in concepts, and consequently in the management of asthma in clinical practice, were chosen by a panel of experts. To formulate these recommendations, we asked each expert to perform a critical review of a topic or to respond to a question, on the basis of evidence in the literature. In a second phase, three experts discussed and structured all texts submitted by the others. That was followed by a third phase, in which all of the experts reviewed and discussed each recommendation. These recommendations, which are intended for physicians involved in the treatment of asthma, apply to asthma patients of all ages.