Relación entre la distancia recorrida en la prueba de caminata de 6 minutos y el sexo, la edad, comorbilidades y la disnea en pacientes con EPOC / Relationship between the Distance Traveled in the Test of 6- Minute Walk and Sex, Age, Comorbidities and Dyspnea in Patients with CORP

Introducción: la enfermedad pulmonar obstructiva crónica (EPOC) es un trastorno res-piratorio caracterizado por síntomas clínicos y compromiso funcional que afecta la ca-pacidad aeróbica limitando las actividades cotidianas y la calidad de vida. La prueba de caminata de 6 minutos (C6M) es una prueba sencilla y de bajo costo que evalúa la capa-cidad de los pacientes para realizar sus actividades cotidianas. Objetivo: evaluar la re-lación entre la capacidad aeróbica medida por la distancia recorrida en la C6M y el se-xo, edad, disnea y comorbilidades cardiometabólicas en pacientes con EPOC. Material y métodos: estudio de corte transversal, descriptivo, basado en pruebas de caminatas de 6 minutos (C6M) realizadas en pacientes con EPOC. Resultados: se evaluaron 101 pacientes, hombres (63,4%), con una edad promedio de 74,1±8,7 años. Al correlacionar C6M con otras variables se encontraron diferencias estadísticamente significativas. La distancia media recorrida fue mayor en hombres que en mujeres (DM: 58,3 metros, IC 95%; 16 - 100,6, p=0,007). Los pacientes < 75 años, sin comorbilidades y disnea < 2 tu-vieron mejor desempeño en la C6M que los > 75 años (DM; 62,012 metros IC 95% 21,5 - 102,4, p=0,003), con comorbilidades (DM: 42,2 metros, IC 95%, 0.003 - 84,4; p=0,050) y disnea ≥ 2 (DM: 65,8 IC 95% 23,9 - 107,6, p=0,002). Conclusiones: el sexo femenino, la presencia de comorbilidad cardiovascular y metabólica, y la edad se asocian con dis-minución en la capacidad física aeróbica y funcional en los pacientes con EPOC. (AU)

Introduction: chronic obstructive pulmonary disease (COPD) is a respiratory disorder characterized by clinical symptoms and functional impairment that affects aerobic capacity, limiting daily activities and quality of life. The 6-minute walk test (C6M) is a simple, low-cost test that assesses a patient's ability to perform their daily activities. Objective: to evaluate the relationship between aerobic capacity measured by the distance covered in the C6M and gender, age, dyspnea and cardiometabolic comorbidities in patients with COPD. Materials and methods: cross-sectional, descriptive study, based on 6-minute walk tests (C6M) performed in patients with COPD. Results: 101 male patients (63.4%), with a mean age of 74.1 ± 8.7 years, were evaluated. When correlating C6M with other variables, statistically significant differences were found. The mean distance traveled was greater in men than in women (MD: 58.3 meters, 95% CI: 16 - 100.6, p=0.007). Patients <75 years old, without comorbidities and dyspnea <2 had better performance in the C6M than those >75 years old (MD; 62 meters CI 95% 21.5 - 102.4, p=0.003), with comorbidities (MD: 42.2 meters, 95% CI, 0.003 - 84.4; p=0.050) and dyspnea ≥ 2 (MD: 65.8, 95% CI 23.9 - 107.6, p=0.002). Conclusions: female sex, the presence of cardiovascular and metabolic comorbidity, and age are associated with decreased aerobic and functional physical capacity in patients with COPD. (AU)

Estudio comparativo de la estadificación de pacientes con EPOC según GOLD 2007, 2011 y 2019 / Comparative study of the categorization of COPD patients based on GOLD 2007, 2011 and 2019

INTRODUCCIÓN: La Enfermedad Pulmonar Obstructiva Crónica afecta a 260 millones de personas a nivel mundial y representará la tercera causa de muerte para el año 2020. MATERIALES Y MÉTODOS: Se realizó un estudio observacional descriptivo transversal con la finalidad de comparar la estadificación de un grupo de pacientes venezolanos con EPOC según la Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2007, 2011 y 2019. RESULTADOS: La muestra estuvo constituida por ochenta y nueve (89) pacientes con una edad promedio de 66,7 ± 0,9 años, siendo el 60,7% de los pacientes del sexo masculino y 82% fumadores. El 14,6% de los pacientes presentaban EPOC leve, 36% EPOC moderado, 41,6% EPOC severo y 7,9% EPOC muy severo. El valor del test Kappa de Cohen entre las escalas mMRC y CAT (COPD Assessment Test) fue de 0,529 (GOLD 2011) y 0,555 (GOLD 2019). CONCLUSIONES: 1) la poca concordancia entre el VEF1, grado de disnea e historial de exacerbaciones impacta la clasificación de la severidad de la EPOC al utilizar GOLD 2011; 2) la concordancia moderada entre las escalas mMRC y CAT sugiere que el tipo de cuestionario utilizado afecta la categorización de la severidad de la enfermedad; 3) los pacientes del grupo B mostraron una importante afectación en el intercambio gaseoso dado por valores más bajos de DLCO y oximetría arterial y 4) una proporción significativa de pacientes fueron clasificados en los grupos de alto riesgo (B y D) en GOLD 2011 y 2019.

INTRODUCTION: Chronic Obstructive Pulmonary Disease (COPD) affects 260 million people worldwide and it is thought to become the third leading cause of mortality by the year 2020. MATERIAL AND METHODS: A transversal descriptive observational study was conducted to compare the categorization of a group of Venezuelan COPD patients according to the Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2007, 2011 and 2019. RESULTS: Eighty-nine (89) patients with a mean age of 66.7 ± 0.9 years were included, 60.7% were male and 82% smokers. 14.6% of the patients had mild COPD, 36% moderate COPD, 41.6% severe COPD and 7.9% very severe COPD. Cohen's Kappa coefficient value between mMRC and COPD Assessment test (CAT) was 0,529 (GOLD 2011) and 0,555 (GOLD 2019). CONCLUSIONS: 1) the lack of concordance between FEV1 values, degree of dyspnea and history of exacerbations impacts COPD severity classification when using GOLD 2011; 2) moderate agreement between mMRC and CAT scales suggests that the type of questionnaire used to evaluate perception of dyspnea can affect disease severity categorization; 3) group B patients showed a significant gas exchange impairment due to lower values of DLCO and arterial oxymetry and 4) a significant proportion of patients were categorized in the high-risk groups (B and D) both in GOLD 2011 and 2019. Optimization of the evaluation of COPD severity is important to allow a better standardization of care and pharmacological management of patients with this disease.

Enfermedad pulmonar crónica en pacientes VIH positivos con inmunidad conservada / Chronic lung disease in HIV-positive patients with preserved immunity

Introducción: La infección por VIH puede asociarse a EPOC, sobre todo en estadios avanzados de enfermedad. La inflamación asociada al virus puede facilitar las alteraciones de la función respiratoria. Objetivos: Investigar la presencia de alteraciones de la función respiratoria en pacientes VIH positivos sin inmunocompromisoni hábito tabáquico. Comparar la función respiratoria de pacientes VIH con la población general(grupo control). Establecer la relación entre función pulmonar, sexo, edad del paciente, valor de CD4, uso de TARV,presencia de síntomas, enfermedad respiratoria y antecedentes de las mismas.Material y Métodos: Se realizó un estudio prospectivo, transversal, de tipo observacional y descriptivo. Luego deun análisis de la historia clínica y una entrevista en búsqueda de síntomas respiratorios, se estudiaron 68 pacientes,no fumadores, a los que se les realizó una espirometría. 46 (67%) eran VIH positivos (casos) y 22 (32,4%) VIH negativos (controles)...

Introduction: HIV infection can be associated with COPD, especially in advanced stages. Objectives: To investigate the presence of respiratory function alterations in HIV-positive patients without immunocompromiseor tobacco habit. Compare the respiratory function of HIV patients with the general population (control group).To establish the relationship between lung function and sex, age of the patient, CD4 value, use of ART, presence of symptoms, respiratory disease and history of symptoms. Material and Methods: A prospective, cross-sectional, observational and descriptive study was conducted. After a medical history analysis and an interview in search of respiratory symptoms, 68 patients, non-smokers, were studied and spirometry was performed. 46 (67%) were HIV positive (cases) and 22 (32.4%) were HIV negative (controls)...

Existe diferença entre o estado nutricional de pacientes com doença pulmonar obstrutiva crônica e outras doenças pulmonares? / Is there a difference between the nutritional status of patients with chronic obstructive pulmonary disease and other lung diseases?

Introdução: A doença pulmonar obstrutiva crônica (DPOC) é caracterizada pela lenta e progressiva obstrução crônica do fluxo aéreo, pouco reversível, associada a uma resposta inflamatória anormal dos pulmões e inalação de partículas ou gases tóxicos. Objetivo: Comparar o estado nutricional de pacientes hospitalizados com diagnóstico clínico de DPOC com outras doenças pulmonares. Método: Foram utilizados prontuários com dados referentes às características antropométricas, clínicas e alimentares de pacientes com diagnóstico clínico de DPOC e de outras doenças pulmonares. Para associar os dois grupos de pacientes, foram aplicados os testes T de Student, exato de Fisher e Mann-Whitney conforme a distribuição de normalidade. Resultados: Participaram do estudo 76 pacientes, não havendo diferença estatística entre ambos os grupos quanto à ingestão alimentar (p>0,05). Os pacientes com DPOC apresentaram mais desnutrição, porém sem significância (p>0,05) e a prega cutânea tricipital foi menor entre os pacientes com DPOC (p<0,05). Conclusões: Não há diferença entre o estado nutricional e dietético de pacientes com DPOC e demais doenças pulmonares.(AU)

Introduction: Chronic obstructive pulmonary disease (COPD) are characterized by slow and progressive chronic airflow obstruction, not easy reversible, associated with an abnormal inflammatory response of the lungs and inhalation of toxic particles or gases. Objective: To compare the nutritional status of hospitalized patients with clinical diagnosis of COPD with other pulmonary diseases. Methods: Documents of data regarding the anthropometric, clinical and dietary characteristics of patients with clinical diagnosis of COPD and other pulmonary diseases was used. In order to associate the two groups of patients, T Student, Fisher's exact and Mann-Whitney tests was applied according to the distribution of normality. Results: 76 patients participated, and there was no statistical difference between the two groups regarding food intake (p>0.05), patients with COPD have shown more malnutrition, but without significance (p>0.05) and triceps tick up was lower among the patients with COPD (p<0.05). Conclusions: There is no difference between the nutritional status of patients with COPD and other pulmonary diseases.(AU)

Severe pulmonary hypertension due to combined pulmonary fibrosis and emphysema: another cause of death among smokers

In 2005, the combined pulmonary fibrosis and emphysema (CPFE) was first defined as a distinct entity, which comprised centrilobular or paraseptal emphysema in the upper pulmonary lobes, and fibrosis in the lower lobes accompanied by reduced diffused capacity of the lungs for carbon monoxide (DLCO). Recently, the fibrosis associated with the connective tissue disease was also included in the diagnosis of CPFE, although the exposure to tobacco, coal, welding, agrochemical compounds, and tire manufacturing are the most frequent causative agents. This entity characteristically presents reduced DLCO with preserved lung volumes and severe pulmonary hypertension, which is not observed in emphysema and fibrosis alone. We present the case of a 63-year-old woman with a history of heavy tobacco smoking abuse, who developed progressive dyspnea, severe pulmonary hypertension, and cor pulmonale over a 2-year period. She attended the emergency facility several times complaining of worsening dyspnea that was treated as decompensate chronic obstructive pulmonary disease (COPD). The imaging examination showed paraseptal emphysema in the upper pulmonary lobes and fibrosis in the middle and lower lobes. The echo Doppler cardiogram revealed the dilation of the right cardiac chambers and pulmonary hypertension, which was confirmed by pulmonary trunk artery pressure measurement by catheterization. During this period, she was progressively restricted to the minimal activities of daily life and dependent on caregivers. She was brought to the hospital neurologically obtunded, presenting anasarca, and respiratory failure, which led her to death. The autopsy showed signs of pulmonary hypertension and findings of fibrosis and emphysema in the histological examination of the lungs. The authors highlight the importance of the recognition of this entity in case of COPD associated with severe pulmonary hypertension of unknown cause.

Excesso de peso e obesidade em portadores de doença pulmonar obstrutiva crônica / Overweight and obesity in patients with chronic obstructive pulmonary disease

Objetivo: Definir o perfil epidemiológico do excesso de peso/obesidade e caracterizar as principais alterações antropométricas em pacientes com doença pulmonar obstrutiva crônica (DPOC) atendidos ambulatorialmente. Método: Estudo transversal, tipo série de casos, realizado no Ambulatório de Pneumologia do Hospital das Clínicas/UFPE. Foram coletados dados socioeconômicos, culturais e comportamentais. Para avaliação nutricional, foram coletados dados de peso, altura, índice de massa corporal (IMC), circunferências da cintura (CC), braço (CB) e quadril (CQ), e obtidas a relação cintura-estatura (RCEst) e a relação cintura-quadril (RCQ). Resultados: Foram obtidos 54 pacientes elegíveis com o seguinte perfil: faixa etária maior de 60 anos (68,5%), não brancos (75,9%), sexo masculino (68,5%), residentes no interior do estado (83,4%), casados/união estável (51,8%), baixa escolaridade (64,8%), sem ocupação (75,9%), renda ≤ 1 salário mínimo (66,6%), tabagistas (11,1%), ex-tabagistas (81,5%), sedentá- rios (66,7%), sobrepeso/obesidade (50%), CC elevada (57,41%), RCQ elevada (51,86%), RCEst elevada (83,34%) e 38,8% na faixa da desnutrição em relação à CB. Conclusão: O excesso de peso/obesidade é bastante prevalente em pacientes com DPOC atendidos ambulatorialmente. Foi observado que, de forma paradoxal, o excesso de peso foi acompanhado de redução da massa magra, característica típica da afecção.

Objective: To define the epidemiological profile of overweight/obesity and characterize the major anthropometric changes in chronic obstructive pulmonary disease (COPD) outpatients. Methods: Study of case series cross-sectional performed in Nutrition Outpatient/ Pulmonology Clinic of Clinical Hospital at Federal University of Pernambuco. Patients were evaluated by collecting socio-economic, cultural and behavioral data. For nutritional assessment, it was collected weight, height, body mass index (BMI), waist circumference (WC), arm circumference (AC) and hip circumference (HC), and it was calculated the waist-height ratio (WHtR) and waist-hip ratio (WHR). Results: It was obtained 54 eligible patients with the following profile: age higher than 60 years (68.5%), non-white (75.9%), male (68.5%), living within the state (83.4%), married/ stable union (51.8%), low education (64.8%), unemployed (75.9%), income ≤ 1 minimum wage (66.6%), smokers (11.1%), ex-smokers (81.5%), sedentary (66.7%), overweight/obesity (50%), high WC (57.41%), high WHR (51.86%), WHtR (83.34%) and 38.8% of malnutrition regarding to AB. Conclusion: Overweight/obesity is highly prevalent in patients with COPD outpatients. It was observed that, paradoxically, excess weight was accompanied by reduced lean body mass, a typical characteristic of the disease.

Incapacidade funcional de pacientes com doença pulmonar obstrutiva crônica através da WHODAS / Assessment of patients with functional chronic obstructive pulmonary disease through WHODAS

A mensuração das Atividades de vida diária (AVD's) nos paciente com DPOC é um instrumento comumente empregado e amparado pela Classificação Internacional da Funcionalidade (CIF). Objetivo: Avaliar a incapacidade funcional de pacientes com doença pulmonar obstrutiva crônica (DPOC) através do World Health Organization Disabilty Assessment Schedule (WHODAS). Métodos: Trata de estudo transversal que avaliou 24 pacientes no início de um programa de reabilitação pulmonar com o questionário WHODAS 2.0. A análise estatística foi descritiva e inferencial com análise do coeficiente de correlação de Spearman com nível de significância de 5%. Resultados: Os dados obtidos com as pontuações totais de domínios e das escalas na avaliação dos pacientes foram comparados pelo teste de Mann-Whitney. Os pacientes apresentaram leve incapacidade funcional. O escore total WHODAS 2.0 foi maior nos menores de 60 anos (35,3 ± 16 vs 14,4 ± 8,6; p = 0,05) e no sexo masculino (12,1 ± 6,7 vs 25,2 ± 15,1; p = 0,03) apresentando maior incapacidade. Houve também correlação entre o domínio "atividades diárias" com o domínio "participação" (r = 0,771; p < 0,001). Conclusão: Foi possível concluir que O WHODAS 2.0 demonstrou-se como um instrumento viável para a avaliação da incapacidade na atividades de vida diária (AVD's) do paciente com DPOC. A mesma revelou que pacientes comunitários fora da crise, apresentam moderada a leve dificuldade desde a mobilidade até sua participação social

Measurement of Activities of daily living (ADLs) in patients with COPD is a commonly used instrument and supported by the International Classification of Functioning (ICF). Objective: Evaluate the functional disability in patients with chronic obstructive pulmonary disease (COPD) by the World Health Organization Disability Assessment Schedule (WHODAS). Methods: This cross-sectional study that evaluated 24 patients at the beginning of a pulmonary rehabilitation program with WHODAS 2.0 questionnaire. The statistical analysis was descriptive and inferential analysis with the Spearman correlation coefficient with 5% significance level. Results: The data obtained with the total scores of domains and scales in the evaluation of patients were compared using the Mann-Whitney test. Patients had mild functional disability. The total score WHODAS 2.0 was higher in younger than 60 years (35.3 ± 16 vs 14.4 ± 8.6; p = 0.05) and males (12.1 ± 6.7 vs 25.2 ± 15.1; p = 0.03) part will introduce greater disability. There was also a correlation between the domain "daily activities" with the domain "participation" (r = 0.771; p <0.001). Conclusion: The 2.0 WHODAS was rated as a feasible tool for the assessment of disability in activities of daily living (ADL's) of COPD patients. The results also revealed that community patients out of the COPD crisis, have moderate to mild difficulty in mobility to social participation domains

Programa de treinamento muscular em pacientes com doença pulmonar obstrutiva crônica grave / Muscle training program in patients with severe chronic obstructive pulmonary disease

Objetivo: Este estudo que visou analisar os efeitos de um programa de treinamento muscular através da EENM de membros inferiores (MMII) e exercícios ativos resistidos de MMSS em pacientes portadores de Doença Pulmonar Obstrutiva Crônica (DPOC) grave. Métodos: A amostra foi constituída por 5 sujeitos com idade média de 65,2 ± 6,09 anos. As avaliações iniciais e finais, compreenderam os testes: uma repetição máxima; senta-levanta; perimetria das coxas; caminhada de seis minutos; questionário St George; escala de dispneia MRC; índice de BODE. A intervenção foi realizada três vezes/semana, totalizando 18 sessões de 30 min de Estimulação elétrica neuromuscular (EENM) e 30 min de treinamento membros superiores, com uso de diagonais do Método Kabat. Os parâmetros da EENM foram: frequência 50 Hz, Ton 6s, Toff 8s, rampa de subida 2s, rampa de descida 2s, largura de pulso 400 µs e intensidade conforme a tolerância do paciente, aumentada em 1 a 5 mA a cada dia. Resultados: Mostraram aumento da força muscular (p = 0,01) e da resistência muscular (p = 0,01). Verificou-se uma tendência à melhora na qualidade de vida (p = 0,16) e na aptidão cardiorrespiratória (p = 0,11). Conclusão: A associação de EENM e exercícios com diagonais pode ser um recurso valioso para o tratamento dos pacientes com DPOC grave. Entretanto, sugere-se pesquisas com um maior número amostral para comprovar seus benefícios

Objective: The objective of this study was to analyze the effects of a muscle training program with neuromuscular electrical stimulation (NMES) for lower limbs (LL) and active resisted exercises for upper limbs (UL) for patients with severe Chronic Obstructive Pulmonary Disease. Methods: With a sample of 5 subjects (65.2 ± 6.09 years), the initial and final evaluations were: One-Repetition-Maximum testing; Sit-to-stand test; perimetry of the thigh; 6-minute walk test; Saint George's Respiratory Questionnaire; Medical Research Council scale for dyspnea and the BODE index. The intervention was performed three times a week and was composed of 18 sessions of 30-minute NMES followed by 30 minutes of exercise for the UL based on the diagonal Kabat method. The NMES parameters were: 50Hz of frequency, 6s on and 8s off, increase slope of 2s and decrease slope of 2s, pulse width of 400µs, and intensity defined as patient tolerance and increased from 1 to 5mA each day. Results: The results have shown an increase in muscle strength (p = 0.01) and of muscle resistance (p = 0.01). There was an improvement tendency in the quality of life (p = 0.16) and in the cardiorespiratory fitness (p = 0.11). Conclusion: The association of physical exercises with diagonals and NMES can be a beneficial resource for the treatment of patients with severe COPD. It is suggested, however, the need for new researches with a wider sample size for assuring these benefits

Influence of emphysema distribution on pulmonary function parameters in COPD patients / Influência da distribuição do enfisema nos parâmetros de função pulmonar em pacientes com DPOC

ABSTRACT OBJECTIVE: To evaluate the impact that the distribution of emphysema has on clinical and functional severity in patients with COPD. METHODS: The distribution of the emphysema was analyzed in COPD patients, who were classified according to a 5-point visual classification system of lung CT findings. We assessed the influence of emphysema distribution type on the clinical and functional presentation of COPD. We also evaluated hypoxemia after the six-minute walk test (6MWT) and determined the six-minute walk distance (6MWD). RESULTS: Eighty-six patients were included. The mean age was 65.2 ± 12.2 years, 91.9% were male, and all but one were smokers (mean smoking history, 62.7 ± 38.4 pack-years). The emphysema distribution was categorized as obviously upper lung-predominant (type 1), in 36.0% of the patients; slightly upper lung-predominant (type 2), in 25.6%; homogeneous between the upper and lower lung (type 3), in 16.3%; and slightly lower lung-predominant (type 4), in 22.1%. Type 2 emphysema distribution was associated with lower FEV1, FVC, FEV1/FVC ratio, and DLCO. In comparison with the type 1 patients, the type 4 patients were more likely to have an FEV1 < 65% of the predicted value (OR = 6.91, 95% CI: 1.43-33.45; p = 0.016), a 6MWD < 350 m (OR = 6.36, 95% CI: 1.26-32.18; p = 0.025), and post-6MWT hypoxemia (OR = 32.66, 95% CI: 3.26-326.84; p = 0.003). The type 3 patients had a higher RV/TLC ratio, although the difference was not significant. CONCLUSIONS: The severity of COPD appears to be greater in type 4 patients, and type 3 patients tend to have greater hyperinflation. The distribution of emphysema could have a major impact on functional parameters and should be considered in the evaluation of COPD patients.

RESUMO OBJETIVO: Avaliar o impacto que a distribuição do enfisema tem na gravidade clínica e funcional em pacientes com DPOC. MÉTODOS: A distribuição do enfisema foi analisada em pacientes com DPOC, que foram classificados de acordo com um sistema de classificação visual de cinco pontos a partir de achados de TC de tórax. Avaliou-se a influência do tipo de distribuição do enfisema na apresentação funcional e clínica da DPOC. Hipoxemia após o teste da caminhada de seis minutos (TC6) foi também avaliada e a distância percorrida (DTC6) foi determinada. RESULTADOS: Foram incluídos 86 pacientes. A média de idade foi de 65,2 ± 12,2 anos, 91,9% eram homens, e todos menos um eram fumantes (média de carga tabágica, 62,7 ± 38,4 anos-maço). A distribuição do enfisema foi categorizada como obviamente predominante no pulmão superior (tipo 1), em 36,0% dos pacientes; levemente predominante no pulmão superior (tipo 2), em 25,6%; homogêneo entre o pulmão superior e inferior (tipo 3), em 16,3%; e levemente predominante no pulmão inferior (tipo 4), em 22,1%. A distribuição do enfisema do tipo 2 foi associada a menores valores de VEF1, CVF, relação VEF1/CVF e DLCO. Em comparação com os pacientes do tipo 1, os do tipo 4 apresentaram maior probabilidade de ter VEF1 < 65% do previsto (OR = 6,91, IC95%: 1,43-33,45; p = 0,016), DTC6 < 350 m (OR = 6,36, IC95%: 1,26-32,18; p = 0,025),e hipoxemia após o TC6 (OR = 32,66, IC95%: 3,26-326,84; p = 0,003). Os pacientes do tipo 3 tiveram uma relação VR/CPT maior, embora sem diferença significativa. CONCLUSÕES: A gravidade da DPOC parece ser maior nos pacientes do tipo 4, e os do tipo 3 tendem a apresentar maior hiperinsuflação. A distribuição do enfisema pode ter um impacto importante nos parâmetros funcionais e deve ser considerada na avaliação de pacientes com DPOC.

Sarcopenia in COPD: relationship with COPD severity and prognosis / Sarcopenia na DPOC: relação com a gravidade e o prognóstico da DPOC

Objective: To evaluate the prevalence of sarcopenia in COPD patients, as well as to determine whether sarcopenia correlates with the severity and prognosis of COPD.Methods: A cross-sectional study with COPD patients followed at the pulmonary outpatient clinic of our institution. The patients underwent dual-energy X-ray absorptiometry. The diagnosis of sarcopenia was made on the basis of the skeletal muscle index, defined as appendicular lean mass/height2 only for low-weight subjects and adjusted for fat mass in normal/overweight subjects. Disease severity (COPD stage) was evaluated with the Global Initiative for Chronic Obstructive Lung Disease (GOLD) criteria. The degree of obstruction and prognosis were determined by the Body mass index, airflow Obstruction, Dyspnea, and Exercise capacity (BODE) index.Results: We recruited 91 patients (50 females), with a mean age of 67.4 ± 8.7 years and a mean BMI of 25.8 ± 6.1 kg/m2. Sarcopenia was observed in 36 (39.6%) of the patients, with no differences related to gender, age, or smoking status. Sarcopenia was not associated with the GOLD stage or with FEV1 (used as an indicator of the degree of obstruction). The BMI, percentage of body fat, and total lean mass were lower in the patients with sarcopenia than in those without (p < 0.001). Sarcopenia was more prevalent among the patients in BODE quartile 3 or 4 than among those in BODE quartile 1 or 2 (p = 0.009). The multivariate analysis showed that the BODE quartile was significantly associated with sarcopenia, regardless of age, gender, smoking status, and GOLD stage.Conclusions: In COPD patients, sarcopenia appears to be associated with unfavorable changes in body composition and with a poor prognosis.

Objetivo: Avaliar a prevalência de sarcopenia em pacientes com DPOC e determinar se sarcopenia está correlacionada com a gravidade e o prognóstico de DPOC.Métodos: Estudo retrospectivo em pacientes com DPOC atendidos no ambulatório de pneumologia de nossa instituição. Os pacientes realizaram absorciometria de dupla energia por raios X. O diagnóstico de sarcopenia foi baseado no índice de massa muscular esquelética, definido como massa magra apendicular/altura2 somente para indivíduos com baixo peso, sendo ajustado pela massa gorda para aqueles com peso normal/sobrepeso. A gravidade da doença (estádio da DPOC) foi avaliada com os critérios da Global Initiative for Chronic Obstructive Lung Disease (GOLD). O grau de obstrução e o prognóstico foram determinados pelo índice Body mass index, airflow Obstruction, Dyspnea, and Exercise capacity (BODE).Resultados: Foram incluídos 91 pacientes (50 mulheres), com média de idade de 67,4 ± 8,7 anos e média de IMC de 25,8 ± 6,1 kg/m2. Sarcopenia foi diagnosticada em 36 (39,6%) dos pacientes, sem diferenças relacionadas a sexo, idade ou status tabágico. Não houve associação de sarcopenia com estádios GOLD ou VEF1 (utilizado como indicador do grau de obstrução). O IMC, a porcentagem de gordura corporal e a massa magra total foram menores nos pacientes com sarcopenia do que naqueles sem a doença (p < 0,001). A prevalência de sarcopenia foi maior nos pacientes com BODE nos quartis 3 ou 4 que naqueles com BODE nos quartis 1 ou 2 (p = 0,009). A análise multivariada mostrou que os quartis do BODE estavam significativamente associados à sarcopenia, independentemente de idade, gênero, status tabágico e estádio GOLD.Conclusões: Em pacientes com DPOC, sarcopenia parece estar associada a alterações desfavoráveis na composição corporal e pior prognóstico.

Vigilância em Saúde da Criança: perspectiva de enfermeiros / Vigilancia en Salud Infantil: perspectiva de enfermeros / Child Health Surveillance: nurses perspective

RESUMOObjetivo:analisar concepções de enfermeiros sobre Vigilância em Saúde da Criança (VSC) em unidades de saúde da família.Métodos:estudo qualitativo, com análise temática dos dados, fundamentada no paradigma da Vigilância em Saúde. Foram realizadas entrevistas com 13 enfermeiros atuantes em município do interior paulista.Resultados:os enfermeiros conceberam VSC como acompanhamento ativo, integral, programado, identificando riscos/vulnerabilidades, por meio de ações multiprofissionais, intersetoriais e dependentes da participação materna. Constatou-se desenvolvimento parcial dessas premissas na prática, por dificuldades como falta de participação materna nas ações propostas, indisponibilidade de tempo para discussão e adoção de medidas nas unidades e desarticulação entre níveis e setores no município.Conclusão:é necessário maior investimento político e técnico para assegurar a adoção desse modelo nos diferentes setores e níveis de atenção do município.

RESUMENObjetivo:analizar las concepciones de los enfermeros en la vigilancia de la salud de los niños en las unidades de salud de la familia.Método:estudio cualitativo con el análisis temático de los datos, basado en el paradigma de la Vigilancia de la Salud. Se realizaron entrevistas con 13 enfermeras en la ciudad interior.Resultados:las enfermeras concibió la vigilancia de la salud del niño y la vigilancia activa, total, la identifi cación de riesgos/vulnerabilidades, a través de acciones multidisciplinario, intersectorial y dependiente de la participación materna. Encontramos lo desarrollo parcial de estos supuestos en la práctica, debido a las difi cultades, como la falta de participación de la madre en las acciones propuestas, la falta de tiempo para el debate y la adopción de medidas en las unidades y la falta de conexión entre los niveles y sectores en el condado.Conclusión:es necesaria una mayor inversión política y técnica para asegurar la adopción de este modelo en diferentes sectores y niveles de atención del municipio.

ABSTRACTObjective:to analyze conceptions of nurses on child health surveillance in family health units.Method:a qualitative study with thematic analysis of the data, based on the paradigm of Health Surveillance. Interviews were conducted with 13 nurses in a countryside city in the state of Sao Paulo.Results:nurses conceived child health surveillance as an active monitoring, which should be comprehensive, identifying risks/vulnerabilities, through multidisciplinary and intersectoral actions that are dependent on maternal involvement. We found partial development of these assumptions in practice, due to diffi culties such as lack of maternal involvement in the proposed actions, lack of time for discussion and adoption of measures in the units and disarticulation between levels and sectors of the city.Conclusion:a greater political and technical investment is needed to ensure the adoption of this model in different sectors and levels of care of the city.

La silicosis: ¿un problema de salud pública prioritario para Chile? / Silicosis: a relevant public health issue in Chile?

Work related diseases and common diseases are covered by separated health systems in Chile. Chilean Ministry of Health focuses on common diseases, making work related diseases almost absent from public health policies. In this article current national and international information about the magnitude and impact of silicosis is reviewed. Although the quality of the national information is suboptimal, it is possible to estimate in several hundreds of thousands the number of workers exposed to silica dust, tens of thousands those under medical surveillance and thousands those currently affected by the disease. Albeit, additional efforts need to be made to estimate the burden of this disease on the Chilean population, information gathered in this article suggests that it is a relevant public health issue, deserving more importance among public policies in our country.

Las enfermedades comunes y laborales son atendidas en distintos sistemas de aseguramiento de la salud en Chile. Las políticas públicas emanadas del Ministerio de Salud se enfocan en las enfermedades comunes, relegando a un rol secundario a aquellas ocasionadas por la actividad laboral de las personas. En este artículo, los autores revisan información actualizada tanto nacional como internacional con el fin de determinar si la silicosis constituye un problema de salud relevante. Aunque la calidad de la información nacional no es óptima, su revisión permite estimar que son cientos de miles los trabajadores expuestos a sílice cristalina, que hay varias decenas de miles bajo vigilancia médica y que son más de mil los portadores de la enfermedad. Si bien es necesario hacer mayores esfuerzos para estimar la carga que esta patología representa para la sociedad chilena, la información recopilada indica que constituye un problema de salud pública relevante que debiera tener mayor protagonismo en las políticas públicas de nuestro país.

COPD in non-smoking elderly men at sea level and high altitude: comparing anthropometric characteristics and physiological responses / EPOC en hombres de edad avanzada no fumadores a nivel del mar y en altura: comparación de las características antropométricas y respuestas fisiológicas

The World Health Organization considers cigarette smoke as a major risk factor and causal agent of chronic obstructive pulmonary disease (COPD); however, smoke from biomass in poorly ventilated environments may be the major causative agent in developing countries. There is little epidemiological evidence of COPD in relation to the use of biomass fuels and altitude of the place of residence, and there is no record of the morphological and physiological characteristics of patients with COPD living at different altitudes. The objective of this research was to compare a) morphological characteristics: weight, height and body mass index (BMI) and b) physiological responses: spirometric record, heart rate, oxygen saturation and hemoglobin concentration in a sample (n=30) of adults aged between 60-75 years, non smokers, exposed to smoke from biomass fuels, diagnosed with COPD, living at sea level (San Miguel de Azapa, 580 m.a.s.l, n = 10) and high altitude (Putre, 3500 meters, n = 20). The results among residents from sea level versus high altitude showed no significant differences in morpho-anthropometric variables such as weight (70.5 +/- 6.8/69.7 +/- 6.1), height (1.58 +/- 0.08/1.56 +/- 0.05) and BMI (29.1 +/- 2.5 / 28.5 +/- 1.9). Similar behavior was observed in the spirometric records of FVC (2.66 +/- 0.54 / 2.48 +/- 0.40) and FEV1 (1.86 +/- 0.72 / 1.84 +/- 0.55). Significant differences were observed for physiological variables such as heart rate (65 +/- 5/90 +/- 3), oxygen saturation (93 +/- 2.7 / 79 +/- 4) and hemoglobin concentration (14 +/- 2/19 +/- 2), respectively. These results manifest the greater physiological effort made by individuals from high altitude to cope both environmental and related from COPD hypoxia. We conclude that there are distinct physiological responses among patients with COPD living at high altitude and sea level.

La Organización Mundial de la Salud señala al humo del cigarrillo como principal factor de riesgo y agente causal de la enfermedad pulmonar obstructiva crónica (EPOC), sin embargo, el humo de biomasas en ambientes mal ventilados sería el mayor agente causal en regiones en vías de desarrollo. Existe escasa evidencia epidemiológica de la EPOC en relación al uso de combustibles de biomasas y la altitud del lugar de residencia y no se dispone de antecedentes de las características morfológicas y fisiológicas de pacientes con EPOC viviendo en diferentes altitudes. El objetivo de esta investigación fue comparar a) características morfológicas: peso, talla e índice de masa corporal (IMC) y b) respuestas fisiológicas: registro espirométrico, frecuencia cardiaca, saturación parcial de oxígeno y concentración de hemoglobina, en una muestra (n=30) de adultos mayores de entre 60 - 75 años, no fumadores, expuestos al humo de biomasas, diagnosticados con EPOC, residentes a nivel del mar (San Miguel de Azapa, 580 msnm, n=10) y en altura (Putre, 3.500 msnm, n=20). Los resultados entre residentes de nivel del mar versus altura, no muestran diferencias significativas en las variables morfo-antropométricas de peso (70.5 +/- 6.8/69.7 +/- 6.1), talla (1.58 +/- 0.08/1.56 +/- 0.05) e IMC (29,1 +/- 2,5/28,5 +/- 1,9). Igual comportamiento se observa en los registros espirométricos de CVF (2.66 +/- 0.54 / 2.48 +/- 0.40), VEF1 (1.86 +/- 0.72 / 1.84 +/- 0.55). Si se observan diferencias significativas en las variables fisiológicas de frecuencia cardiaca (65 +/- 5/90 +/- 3); saturación parcial del oxígeno (93 +/- 2,7/79 +/- 4) y de concentración de la hemoglobina (14 +/- 2/19 +/- 2) respectivamente. Estos resultados, expresan el mayor esfuerzo fisiológico realizan los individuos de altura para enfrentar la hipoxia ambiental y aquella derivada de la EPOC. Se concluye que existen respuestas fisiológicas diferenciadas entre pacientes con EPOC viviendo en altura y a nivel del mar.

Etiopatogenia de DPOC / Etiopathogenesis of COPD

A principal causa da DPOC é o tabagismo, que pode ser evitado. Apesar disso, segundo dados da Organização Mundial de Saúde, a DPOC será a quarta causa de mortalidade em 2020, atrás apenas das doenças vasculares, cardíacas e cerebrais, além das neoplasias.O processo inflamatório crônico causado pelos gases da fumaça de tabaco acontece nas pequenas vias respiratórias (< 2 mm), sendo normalmente tênue e contínuo, originando a coalescência de alvéolos e ductos alveolares de forma irregular e definitiva. Várias teorias foram propostas para explicar o processo de início e progressão da doença, como a autoimunidade, a infecção viral latente, a deficiência de proteínas e vitaminas, a imaturidade pulmonar e os ambientes com maior quantidade de poluentes no ar. É possível que os fatores, incluindo inflamação e a predisposição genética, estejam contribuindo com a progressiva destruição parenquimatosa e tendo como consequência final a DPOC

The main cause of chronic obstructive pulmonary disease (COPD) is smoking, which is avoidable. Nevertheless, according to the World Health Organization, COPD will be the fourth leading cause of death in 2020, surpassed only by cardiovasculardisease, stroke, and cancer.The chronic inflammatory process caused by exposure to tobacco smoke occurs in the small airways (internal diameter <2 mm); is typically mild and progressive; and leads to the coalescence of alveoli and permanently irregular alveolar ducts.Some factors have been proposed to explain the process involved in the onset and progression of COPD: autoimmunity; latent viral infection; protein or vitamin deficiency; lung immaturity at birth; and exposure to environments with high levelsof air pollutants.It is possible that multiple factors, including inflammation and genetic predisposition, contribute to the progressive destruction of the parenchyma, the end result of which is COPD.

Manejo odontológico del paciente con enfermedad pulmonar obstructiva crónica y asma bronquial / Dental management of chronic obstructive pulmonary disease and patients with bronchial asthma

La enfermedad pulmonar obstructiva crónica (EPOC) abarca todas aquellas enfermedades respiratorias que cursan con obstrucción no totalmente reversible del flujo aéreo. La limitación es progresiva y está asociada a una respuesta inflamatoria. La denominación de fenotipo se utiliza para referirse a formas clínicas de los pacientes con EPOC, describiéndose: 1. No agudizador, con enfisema o bronquitis crónica, 2. Mixto EPOC-asma, 3. Agudizador con enfisema y 4. Agudizador con bronquitis crónica. La superposición de los síntomas hace difícil el diagnóstico, y para la mayoría de los pacientes, el tabaquismo es el factor etiológico más importante. La obstrucción de las vías bronquiales en el asma es esencialmente reversible, pero muchos años de exacerbaciones recurrentes puede producir una obstrucción permanente debido al remodelado de las vías respiratorias. La inflamación crónica esta asociada a un aumento en la hiperreactividad de la vía aérea que conduce a episodios recurrentes de sibilancias, disnea, opresión torácica y tos, particularmente en la noche o temprano en la mañana. Estos episodios se asocian generalmente a la obstrucción generalizada pero variable en el flujo aéreo pulmonar que es frecuentemente reversible espontáneamente o con tratamiento. El cuidado rutinario de la salud bucal puede ser proporcionado en el consultorio del odontólogo, siempre y cuando éste tenga conocimientos sólidos sobre las enfermedades pulmonares y preste especial atención tanto a la evaluación de riesgos como a las precauciones que deben ser necesarias para prevenir exacerbaciones agudas dentro de la consulta. El objetivo de este trabajo es realizar una revisión bibliográfica de la EPOC y el asma bronquial, estableciendo su etiología, características clínicas, tratamiento médico y manejo odontológico del paciente que sufre estas enfermedades

Chronic obstructive pulmonary disease (COPD) includes all those respiratory diseases that curse with not fully reversible obstruction of the airflow. The limitation is progressive and its associated with a inflammatory response. The denomination of phenotype is used to refer to clinical forms of COPD patients, describing: 1. No peaking, emphysema or chronic bronchitis, 2. Mixed COPD-asthma, 3. Peaking with emphysema and 4. Peaking with chronic bronchitis. The superposition of the symptoms makes the diagnosis difficult, and for most patients, smoking is the most important etiologic factor. The bronchial airway obstruction in asthma is essentially reversible, but many years of recurrent exacerbations can produce a permanent obstruction due to airway remodelling. Chronic inflammation is associated with increased airway hyper responsiveness that leads to recurrent episodes of wheezing, breathlessness, chest tightness and coughing, particularly at night or early in the morning. These episodes are usually associated with widespread but variable obstruction in lung airflow that is often reversible either spontaneously or with treatment. Routine care of oral health can be provided in the dentist's office, as long as it has a solid understanding of lung diseases and pay special attention to both risk assessment as to the precautions that must be necessary to prevent acute exacerbations in the consult. The objective of this paper is to make a literature review of COPD and bronchial asthma, establishing its etiology, clinical characteristics, medical treatment and dental management of the patient who is suffering these diseases

Influência das características sociodemográficas e clínicas e do nível de dependência na qualidade de vida de pacientes com DPOC em oxigenoterapia domiciliar prolongada / Influence that sociodemographic variables, clinical characteristics, and level of dependence have on quality of life in COPD patients on long-term home oxygen therapy

OBJETIVO: Avaliar e correlacionar a qualidade de vida (QV) de pacientes com DPOC em uso de oxigenoterapia domiciliar prolongada (ODP) com suas características sociodemográficas/clínicas e o nível de dependência. MÉTODOS: Estudo transversal analítico com portadores de DPOC em ODP acompanhados no Ambulatório de Oxigenoterapia do Hospital São Paulo, Universidade Federal de São Paulo, em São Paulo (SP). Os pacientes foram avaliados quanto aos dados sociodemográficos, clínicos e laboratoriais. A qualidade de vida e o nível de dependência foram avaliados pelo Medical Outcomes Study 36-item Short-Form Health Survey (SF-36) e índice de Katz, respectivamente. Modelos de regressão linear múltipla foram construídos para verificar a influência dessas variáveis na QV. RESULTADOS: A média de idade dos 80 pacientes incluídos foi 69,6 ± 9,1 anos, e 51,3% eram do sexo feminino. Os escores dos domínios do SF-36 mais baixos foram capacidade funcional e função física. Correlações significantes foram encontradas entre características sociodemográficas (exceto gênero) e os domínios saúde mental, vitalidade, função física e aspectos sociais, assim como entre várias características clínicas/laboratoriais (índice de massa corpórea, PaO2, VEF1 pós-broncodilatador, hemoglobina e índice de Katz) e os domínios capacidade funcional, saúde mental, função física e dor corporal. Houve correlações negativas entre os fluxos de oxigênio e os domínios capacidade funcional, saúde mental, vitalidade e função emocional. CONCLUSÕES: Os baixos escores nos domínios do SF-36 e as variáveis que os influenciam negativamente devem ser considerados e analisados na elaboração e implementação de estratégias para a melhoria da QV de portadores de DPOC em ODP.

OBJECTIVE: To evaluate and correlate the quality of life (QoL) of COPD patients on long-term home oxygen therapy (LTOT) with their sociodemographic/clinical characteristics and level of dependence. METHODS: This was a cross-sectional analytical study involving COPD patients on LTOT followed at the Oxygen Therapy Outpatient Clinic of the Federal University of São Paulo Hospital São Paulo, in the city of São Paulo, Brazil. Sociodemographic, clinical, and biochemical data were collected. We assessed QoL and level of dependence using the Medical Outcomes Study 36-item Short-Form Health Survey (SF-36) and the Katz index, respectively. Multiple linear regression models were constructed in order to determine the influence of these variables on QoL. RESULTS: We included 80 patients in the study. The mean age was 69.6 ± 9.1 years, and 51.3% were female. The lowest SF-36 scores were for the physical functioning and role-physical domains. All sociodemographic characteristics (except gender) were found to correlate significantly with the SF-36 domains mental health, vitality, role-physical, and social functioning. We also found that body mass index, PaO2, post-bronchodilator FEV1, hemoglobin, and Katz index correlated significantly with the physical functioning, mental health, role-physical, and bodily pain domains. In addition, oxygen flows were found to correlate negatively with the physical functioning, mental health, vitality, and role-emotional domains. CONCLUSIONS: Low scores for SF-36 domains, as well as the variables that negatively influence them, should be considered and analyzed during the development and implementation of strategies for improving the QoL of COPD patients on LTOT.

Short-term exposure of mice to cigarette smoke and/or residual oil fly ash produces proximal airspace enlargements and airway epithelium remodeling

Chronic obstructive pulmonary disease (COPD) is associated with inflammatory cell reactions, tissue destruction and lung remodeling. Many signaling pathways for these phenomena are still to be identified. We developed a mouse model of COPD to evaluate some pathophysiological mechanisms acting during the initial stage of the disease. Forty-seven 6- to 8-week-old female C57/BL6 mice (approximately 22 g) were exposed for 2 months to cigarette smoke and/or residual oil fly ash (ROFA), a concentrate of air pollution. We measured lung mechanics, airspace enlargement, airway wall thickness, epithelial cell profile, elastic and collagen fiber deposition, and by immunohistochemistry transforming growth factor-β1 (TGF-β1), macrophage elastase (MMP12), neutrophils and macrophages. We observed regional airspace enlargements near terminal bronchioles associated with the exposure to smoke or ROFA. There were also increases in airway resistance and thickening of airway walls in animals exposed to smoke. In the epithelium, we noted a decrease in the ciliated cell area of animals exposed to smoke and an increase in the total cell area associated with exposure to both smoke and ROFA. There was also an increase in the expression of TGF-β1 both in the airways and parenchyma of animals exposed to smoke. However, we could not detect inflammatory cell recruitment, increases in MMP12 or elastic and collagen fiber deposition. After 2 months of exposure to cigarette smoke and/or ROFA, mice developed regional airspace enlargements and airway epithelium remodeling, although no inflammation or increases in fiber deposition were detected. Some of these phenomena may have been mediated by TGF-β1.

Desnutrição em paciente com doença pulmonar obstrutiva crônica / Malnutrition in patients with chronic obstructive pulmonary disease

A doença pulmonar obstrutiva crônica (DPOC) é uma patologia responsável por muitas mortes em todo o mundo e é causada principalmente pelo tabagismo. A DPOC apresenta, como característica associada, um estado nutricional deficiente. O caso relatado é de uma paciente de 63 anos, ex-tabagista, internada em um hospital do interior do Rio Grande do Sul por broncopneumonia e com diagnóstico de DPOC há 3 anos. A paciente permaneceu internada por 15 dias, com uma evolução desfavorável do estado nutricional, mesmo superando a ingestão energética estimada. Pacientes com DPOC apresentam taxa de metabolismo basal aumentada e infecções associadas, o que pode acelerar ainda mais o catabolismo e gerar anorexia. A terapia nutricional é muito importante para a recuperação desses pacientes.

Chronic obstructive pulmonary disease (COPD) is a leading cause of death worldwide and is mainly caused by smoking. COPD has been associated with poor nutritional status. We report the case of a 63-year-old female patient, an ex-smoker, admitted to a hospital in southern Brazil with bronchopneumonia and a 3-year diagnosis of COPD. She stayed in hospital for 15 days, with an unfavorable outcome for nutritional status, despite meeting the estimated energy intake. COPD patients have increased basal metabolic rate and associated infections, which may lead to accelerated catabolism and cause anorexia. In these cases, nutrition therapy is very important for patient recovery.