Lung ultrasound teaching in medical education: a pilot study at a Brazilian medical school.

OBJECTIVE: To evaluate cognitive learning, ability to perform and interpret lung ultrasound exams, and self-perception of learning among medical students after a short pedagogical intervention at a medical school in Brazil. METHODS: An experimental pilot study was conducted with medical students at different stages of their education (basic cycle, clinical cycle, and medical internship). The participants underwent a cognitive test before and after the intervention, a practical test, a test to recognize lung ultrasound pathologies, and a qualitative evaluation test at the end of the intervention. Statistical analysis was performed using a significance level of p < 0.05. RESULTS: A total of 42 students were included in the study, with a median age of 23 years and a predominance of males. The mean score of the pre-intervention cognitive test was 2.97 ± 0.87, and that of the post-intervention test was 6.57 ± 1.41, showing significant improvement (p < 0.001). The score of the practical test and that of the recognition of pathologies test also showed significant improvement after the intervention. There was no significant difference in execution time between the groups. Students in the clinical cycle had a better self-perception of learning. CONCLUSIONS: Theoretical teaching and practical training of lung ultrasound in a short pedagogical intervention can improve cognitive performance, practical skills, and interpretation of the exam. The level of learning achievement was higher among more advanced students in medical education. Additionally, the students in the clinical cycle had a better perception of their learning.

Prospective, randomized, controlled trial assessing the effects of a driving pressure-limiting strategy for patients with acute respiratory distress syndrome due to community-acquired pneumonia (STAMINA trial): protocol and statistical analysis plan.

BACKGROUND: Driving pressure has been suggested to be the main driver of ventilator-induced lung injury and mortality in observational studies of acute respiratory distress syndrome. Whether a driving pressure-limiting strategy can improve clinical outcomes is unclear. OBJECTIVE: To describe the protocol and statistical analysis plan that will be used to test whether a driving pressure-limiting strategy including positive end-expiratory pressure titration according to the best respiratory compliance and reduction in tidal volume is superior to a standard strategy involving the use of the ARDSNet low-positive end-expiratory pressure table in terms of increasing the number of ventilator-free days in patients with acute respiratory distress syndrome due to community-acquired pneumonia. METHODS: The ventilator STrAtegy for coMmunIty acquired pNeumoniA (STAMINA) study is a randomized, multicenter, open-label trial that compares a driving pressure-limiting strategy to the ARDSnet low-positive end-expiratory pressure table in patients with moderate-to-severe acute respiratory distress syndrome due to community-acquired pneumonia admitted to intensive care units. We expect to recruit 500 patients from 20 Brazilian and 2 Colombian intensive care units. They will be randomized to a driving pressure-limiting strategy group or to a standard strategy using the ARDSNet low-positive end-expiratory pressure table. In the driving pressure-limiting strategy group, positive end-expiratory pressure will be titrated according to the best respiratory system compliance. OUTCOMES: The primary outcome is the number of ventilator-free days within 28 days. The secondary outcomes are in-hospital and intensive care unit mortality and the need for rescue therapies such as extracorporeal life support, recruitment maneuvers and inhaled nitric oxide. CONCLUSION: STAMINA is designed to provide evidence on whether a driving pressure-limiting strategy is superior to the ARDSNet low-positive end-expiratory pressure table strategy for increasing the number of ventilator-free days within 28 days in patients with moderate-to-severe acute respiratory distress syndrome. Here, we describe the rationale, design and status of the trial.

Prospective, randomized, controlled trial assessing the effects of a driving pressure-limiting strategy for patients with acute respiratory distress syndrome due to community-acquired pneumonia (STAMINA trial): protocol and statistical analysis plan / Estudo randomizado prospectivo e controlado de avaliação dos efeitos de uma estratégia de limitação da driving pressure em pacientes com síndrome do desconforto respiratório agudo devido à pneumonia adquirida na comunidade (estudo STAMINA): protocolo e plano de análise estatística

ABSTRACT Background: Driving pressure has been suggested to be the main driver of ventilator-induced lung injury and mortality in observational studies of acute respiratory distress syndrome. Whether a driving pressure-limiting strategy can improve clinical outcomes is unclear. Objective: To describe the protocol and statistical analysis plan that will be used to test whether a driving pressure-limiting strategy including positive end-expiratory pressure titration according to the best respiratory compliance and reduction in tidal volume is superior to a standard strategy involving the use of the ARDSNet low-positive end-expiratory pressure table in terms of increasing the number of ventilator-free days in patients with acute respiratory distress syndrome due to community-acquired pneumonia. Methods: The ventilator STrAtegy for coMmunIty acquired pNeumoniA (STAMINA) study is a randomized, multicenter, open-label trial that compares a driving pressure-limiting strategy to the ARDSnet low-positive end-expiratory pressure table in patients with moderate-to-severe acute respiratory distress syndrome due to community-acquired pneumonia admitted to intensive care units. We expect to recruit 500 patients from 20 Brazilian and 2 Colombian intensive care units. They will be randomized to a driving pressure-limiting strategy group or to a standard strategy using the ARDSNet low-positive end-expiratory pressure table. In the driving pressure-limiting strategy group, positive end-expiratory pressure will be titrated according to the best respiratory system compliance. Outcomes: The primary outcome is the number of ventilator-free days within 28 days. The secondary outcomes are in-hospital and intensive care unit mortality and the need for rescue therapies such as extracorporeal life support, recruitment maneuvers and inhaled nitric oxide. Conclusion: STAMINA is designed to provide evidence on whether a driving pressure-limiting strategy is superior to the ARDSNet low-positive end-expiratory pressure table strategy for increasing the number of ventilator-free days within 28 days in patients with moderate-to-severe acute respiratory distress syndrome. Here, we describe the rationale, design and status of the trial.

RESUMO Contexto: Em estudos observacionais sobre a síndrome do desconforto respiratório agudo, sugeriu-se que a driving pressure é o principal fator de lesão pulmonar induzida por ventilador e de mortalidade. Não está claro se uma estratégia de limitação da driving pressure pode melhorar os desfechos clínicos. Objetivo: Descrever o protocolo e o plano de análise estatística que serão usados para testar se uma estratégia de limitação da driving pressure envolvendo a titulação da pressão positiva expiratória final de acordo com a melhor complacência respiratória e a redução do volume corrente é superior a uma estratégia padrão envolvendo o uso da tabela de pressão positiva expiratória final baixa do protocolo ARDSNet, em termos de aumento do número de dias sem ventilador em pacientes com síndrome do desconforto respiratório agudo devido à pneumonia adquirida na comunidade. Métodos: O estudo STAMINA (ventilator STrAtegy for coMmunIty acquired pNeumoniA) é randomizado, multicêntrico e aberto e compara uma estratégia de limitação da driving pressure com a tabela de pressão positiva expiratória final baixa do protocolo ARDSnet em pacientes com síndrome do desconforto respiratório agudo moderada a grave devido à pneumonia adquirida na comunidade internados em unidades de terapia intensiva. Esperamos recrutar 500 pacientes de 20 unidades de terapia intensiva brasileiras e duas colombianas. Eles serão randomizados para um grupo da estratégia de limitação da driving pressure ou para um grupo de estratégia padrão usando a tabela de pressão positiva expiratória final baixa do protocolo ARDSnet. No grupo da estratégia de limitação da driving pressure, a pressão positiva expiratória final será titulada de acordo com a melhor complacência do sistema respiratório. Desfechos: O desfecho primário é o número de dias sem ventilador em 28 dias. Os desfechos secundários são a mortalidade hospitalar e na unidade de terapia intensiva e a necessidade de terapias de resgate, como suporte de vida extracorpóreo, manobras de recrutamento e óxido nítrico inalado. Conclusão: O STAMINA foi projetado para fornecer evidências sobre se uma estratégia de limitação da driving pressure é superior à estratégia da tabela de pressão positiva expiratória final baixa do protocolo ARDSnet para aumentar o número de dias sem ventilador em 28 dias em pacientes com síndrome do desconforto respiratório agudo moderada a grave. Aqui, descrevemos a justificativa, o desenho e o status do estudo.

Lung ultrasound teaching in medical education: a pilot study at a Brazilian medical school

ABSTRACT Objective: To evaluate cognitive learning, ability to perform and interpret lung ultrasound exams, and self-perception of learning among medical students after a short pedagogical intervention at a medical school in Brazil. Methods: An experimental pilot study was conducted with medical students at different stages of their education (basic cycle, clinical cycle, and medical internship). The participants underwent a cognitive test before and after the intervention, a practical test, a test to recognize lung ultrasound pathologies, and a qualitative evaluation test at the end of the intervention. Statistical analysis was performed using a significance level of p < 0.05. Results: A total of 42 students were included in the study, with a median age of 23 years and a predominance of males. The mean score of the pre-intervention cognitive test was 2.97 ± 0.87, and that of the post-intervention test was 6.57 ± 1.41, showing significant improvement (p < 0.001). The score of the practical test and that of the recognition of pathologies test also showed significant improvement after the intervention. There was no significant difference in execution time between the groups. Students in the clinical cycle had a better self-perception of learning. Conclusions: Theoretical teaching and practical training of lung ultrasound in a short pedagogical intervention can improve cognitive performance, practical skills, and interpretation of the exam. The level of learning achievement was higher among more advanced students in medical education. Additionally, the students in the clinical cycle had a better perception of their learning.

Prevalência de sintomas de ansiedade e depressão em pacientes com diferentes graus de obesidade / Prevalence of anxiety and depression symptoms in patients with different degrees of obesity

Introdução: A obesidade apresenta elevada prevalência e está associada ao aumento da morbidade e mortalidade. Vários estudos já identificaram impacto negativo da adiposidade em sintomas psicológicos, porém ainda se investiga a relação de causalidade entre estas afecções. Objetivo: Determinar a prevalência de sintomas ansiosos e depressivos em pacientes com diferentes graus de obesidade. Métodos: Estudo observacional transversal realizado entre 2016 e 2019 por meio da aplicação do questionário Escala Hospitalar de Ansiedade e Depressão (HADS) em pacientes com obesidade. Resultados: Foram incluídos 47 pacientes no estudo. 14 pacientes com obesidade grau 1 (G1) , 14 pacientes com obesidade grau 2 (G2) e 19 pacientes com obesidade grau 3 (G3). Do total, 37 eram mulheres (78,7%), com média de idade 43±10 anos, 110,6±27,7 kg e índice de massa corporal de 41,8±9,3 kg/m². Entre os participantes, 17 (36,2%) tinham sintomas de ansiedade, sendo 6 (42,9%) do G1, 6 (42,9%) do G2 e 5 (26,3%) do G3, (p=0,511). 16 pacientes (34%) tiveram sintomas depressivos, correspondendo a 5 (35,7%) pacientes no G1, 4 (28,6%) no G2 e 7 (36,8%) no G3, (p=0,874). Uma moderada correlação entre HADS-A e HADS-D foi constatada (r=0,654) (p<0,001). Conclusão: Foram identificadas elevadas taxas de sintomas ansiosos e depressivos entre os pacientes avaliados, dados estes, superiores aos dados da população geral descrito na literatura. Entretanto, não foram identificadas diferenças entre os diferentes graus de obesidade quanto a prevalência de sintomas ansiosos ou depressivos.

Introduction: Obesity has high prevalence and is associated with increased morbidity and mortality. Several studies have already identified negative impact of adiposity on psychological symptoms, but the causal relationship between these conditions is still investigated. Objective: To determine the prevalence of anxious and depressive symptoms in patients with different degrees of obesity. Methods: Cross-sectional observational study conducted between 2016 and 2019 by applying the questionnaire Hospital Anxiety and Depression Scale (HADS) in obese patients. Results: 47 patients were included in the study. 14 patients with grade 1 obesity (G1), 14 patients with grade 2 obesity (G2) and 19 patients with grade 3 obesity (G3). Of the total, 37 were women (78.7%), with a mean age of 43 ± 10 years, 110.6 ± 27.7 kg and body mass index of 41.8 ± 9.3 kg / m². Among the participants, 17 (36.2%) had anxiety symptoms, being 6 (42.9%) from G1, 6 (42.9%) from G2 and 5 (26.3%) from G3, (p = 0.511). 16 patients (34%) had depressive symptoms, corresponding to 5 (35.7%) patients in G1, 4 (28.6%) in G2 and 7 (36.8%) in G3, (p = 0.874). A moderate correlation between HADS-A and HADS-D was found (r = 0.654) (p <0.001). Conclusion: High rates of anxious and depressive symptoms were identified among the patients evaluated, which is higher than the general population data described in the literature. However, no differences were identified between the different degrees of obesity regarding the prevalence of anxious or depressive symptoms.

Translation and cultural adaptation of the King's Brief Interstitial Lung Disease health status questionnaire for use in Brazil.

OBJECTIVE: To translate the King's Brief Interstitial Lung Disease (K-BILD) questionnaire to Portuguese and culturally adapt it for use in Brazil. The K-BILD quantifies the health status of patients with ILD. METHODS: The process involved the following steps: authorization from the author of the original (English-language) questionnaire; translation of the questionnaire to Portuguese by three translators, working independently; merging of the translations by a committee of specialists; back-translation of the questionnaire to English; revision and readjustment of the back-translation by the committee of specialists; evaluation by the original author; revision of the back-translation; cognitive debriefing (verification of the clarity and acceptability of the Portuguese-language version in the target population-i.e., patients with ILD); and finalization of the Portuguese-language version. RESULTS: In the cognitive debriefing step, 20 patients with ILD were interviewed. After the interviews, the clarity and acceptability index of each question was ≥ 0.8, which is considered acceptable. CONCLUSIONS: The Portuguese-language version of K-BILD appears to be easily administered to and understood by patients with ILD in Brazil. To our knowledge, this is the only instrument in Brazilian Portuguese that is designed to evaluate the impact that ILD has on the various aspects of the lives of those it affects.

Motivations for smoking in hospitalized patients.

OBJECTIVE: To investigate the profile of motivations for smoking among inpatients at a hospital in southern Brazil. METHODS: A survey study involving hospitalized smokers. The Modified Reasons for Smoking Scale (MRFSS) and its domains were analyzed according to gender and dependence degree. RESULTS: The sample consisted of 85 adults (mean age 53 years), low schooling/family income, and well-adjusted in terms of gender (male= 52.9%) and clinical (48%) or surgical (47%) specialty. Most were in Action as the motivational stage (68%), with elevated smoking exposure (median = 39 years/packs) and dependence degree of nicotine (56.4%). The highest domains of the MRFSS were: Smoking Pleasure (4.34 ± 1.2), Relaxation/Tension Reduction (4.24 ± 1.2) and Dependence (3.8±1.4). Significantly, women presented higher scores, in domain Relaxation/Tension Reduction (4.7±0.9). In those with elevated nicotine dependence, higher scores were observed in the Automatism/Habit and Stimulation domains. CONCLUSIONS: Smoking Pleasure and Relaxation/Tension Reduction, especially in women and Automatism, in those more dependents, are factors that should be more highlighted in future strategies for smoking cessation in inpatients.

Motivations for smoking in hospitalized patients

SUMMARY OBJECTIVE: To investigate the profile of motivations for smoking among inpatients at a hospital in southern Brazil. METHODS: A survey study involving hospitalized smokers. The Modified Reasons for Smoking Scale (MRFSS) and its domains were analyzed according to gender and dependence degree. RESULTS: The sample consisted of 85 adults (mean age 53 years), low schooling/family income, and well-adjusted in terms of gender (male= 52.9%) and clinical (48%) or surgical (47%) specialty. Most were in Action as the motivational stage (68%), with elevated smoking exposure (median = 39 years/packs) and dependence degree of nicotine (56.4%). The highest domains of the MRFSS were: Smoking Pleasure (4.34 ± 1.2), Relaxation/Tension Reduction (4.24 ± 1.2) and Dependence (3.8±1.4). Significantly, women presented higher scores, in domain Relaxation/Tension Reduction (4.7±0.9). In those with elevated nicotine dependence, higher scores were observed in the Automatism/Habit and Stimulation domains. CONCLUSIONS: Smoking Pleasure and Relaxation/Tension Reduction, especially in women and Automatism, in those more dependents, are factors that should be more highlighted in future strategies for smoking cessation in inpatients.

RESUMO OBJETIVO: Investigar o perfil de motivações para o tabagismo entre pacientes internados em um hospital do sul do Brasil. MÉTODOS: Estudo tipo survey que incluiu pacientes tabagistas hospitalizados. Utilizou-se a Escala de Razões para Fumar Modificada (ERPFM) e seus domínios, analisados em função do sexo e do grau de dependência. RESULTADOS: A amostra foi composta por 85 adultos (média de 53 anos), com baixa escolaridade/renda familiar e equilibrada quanto ao sexo (masculino= 52,9%) e por especialidade clínica (48%) ou cirúrgica (47%). A maioria estava em estágio motivacional Ação (68%), com carga tabágica (mediana= 39 anos/maços) e grau de dependência à nicotina elevados (56,4%). Os domínios de maior escore da ERPFM foram: Prazer de Fumar (4,34 ± 1,2), Relaxamento/Redução da Tensão (4,24 ± 1,2) e Dependência (3,8 ± 1,4). De forma significativa, com maior pontuação, as mulheres apresentaram o domínio Relaxamento/Redução da Tensão (4,7 ± 0,9). Naqueles com maior grau de dependência, observou-se com significância, escores mais elevados nos domínios Automatismo/Hábito e Estimulação. CONCLUSÕES: Prazer de Fumar e Relaxamento/Redução da Tensão, especialmente em mulheres e Automatismo, naqueles mais dependentes, são fatores que devem ser mais valorizados em futuras estratégias de cessação de tabagismo em hospitalizados.

Translation and cultural adaptation of the King's Brief Interstitial Lung Disease health status questionnaire for use in Brazil / Tradução e adaptação cultural do King's Brief Interstitial Lung Disease health status questionnaire

ABSTRACT Objective: To translate the King's Brief Interstitial Lung Disease (K-BILD) questionnaire to Portuguese and culturally adapt it for use in Brazil. The K-BILD quantifies the health status of patients with ILD. Methods: The process involved the following steps: authorization from the author of the original (English-language) questionnaire; translation of the questionnaire to Portuguese by three translators, working independently; merging of the translations by a committee of specialists; back-translation of the questionnaire to English; revision and readjustment of the back-translation by the committee of specialists; evaluation by the original author; revision of the back-translation; cognitive debriefing (verification of the clarity and acceptability of the Portuguese-language version in the target population-i.e., patients with ILD); and finalization of the Portuguese-language version. Results: In the cognitive debriefing step, 20 patients with ILD were interviewed. After the interviews, the clarity and acceptability index of each question was ≥ 0.8, which is considered acceptable. Conclusions: The Portuguese-language version of K-BILD appears to be easily administered to and understood by patients with ILD in Brazil. To our knowledge, this is the only instrument in Brazilian Portuguese that is designed to evaluate the impact that ILD has on the various aspects of the lives of those it affects.

RESUMO Objetivo: Traduzir e adaptar culturalmente o King's Brief Interstitial Lung Disease (K-BILD) health status questionnaire, utilizado para mensurar o estado de saúde em pacientes com doença pulmonar intersticial (DPI), para a língua portuguesa falada no Brasil. Métodos: As seguintes etapas foram realizadas: autorização do autor do instrumento original; preparação; tradução do K-BILD da língua inglesa para a língua portuguesa falada no Brasil por três tradutores independentes; unificação das traduções por um comitê de especialistas; retradução do português para o inglês; revisão e readequação da retradução pelo comitê de especialistas; avaliação do autor do original; revisão da versão em inglês; desdobramento cognitivo (observação da clareza e aceitabilidade do questionário traduzido na população-alvo); e elaboração da versão final em português. Resultados: Na etapa de desdobramento cognitivo foram entrevistados 20 pacientes com DPI. Após todas as entrevistas, o índice de clareza e aceitabilidade das questões foi igual ou maior que 0,8, indicando um índice de clareza aceitável para todas as questões. Conclusões: A versão do K-BILD mostrou ser compreensível e de fácil aplicação. Até onde sabemos, esse é atualmente o único instrumento disponível em português falado no Brasil dirigido à avaliação do impacto da DPI em vários aspectos da vida desses pacientes.

Câncer de pulmão: dados de três anos do registro hospitalar de câncer de um hospital do sul do Brasil / Lung cancer: three years of data hospital cancer registry of a Brazil south hospital

O Câncer de pulmão é uma neoplasia frequente. Na região sul, observam-se as maiores taxas de incidência e mortalidade relacionadas à doença no país. Objetivou-se avaliar o perfil dos pacientes com câncer de pulmão, atendidos no em um hospital do sul do Brasil. Como metodologia foi realizado um estudo retrospectivo, transversal, descritivo e analítico que utilizou o banco de dados do referido hospital, no período de 2007 a 2010. Analisou-se dados demográficos, socioeconômicos, características da neoplasia, diagnósticos e tratamentos.Foram avaliados dados de 103 pacientes com câncer de pulmão, com idade mediana de 65 anos, sexo masculino (71,8%), brancos (78,6%), com até primeiro grau incompleto (67%). O principal tipo histológico foi adenocarcinoma (24,3%). Não havia informação sobre o estadiamento em 48,5% dos pacientes. O estádio 4foi encontrado em 18,4% e apenas 10,7% apresentavam estadios precoces (I e II). A mediana dos dias entre primeira consulta e diagnóstico foi de 15 dias e entre o diagnóstico e o primeiro tratamento9dias. A principal forma de diagnóstico foi através de exame histológico do tumor primário (48,5%). Apenas 27,2% dos pacientes realizaram tratamento na própria instituição e 14,6% realizaram cirurgia de ressecção tumoral. A maioria (74,8%) não realizou nenhum tratamento no hospital. Observou-se uma tendência dos adenocarcinomasemse apresentarem em estadios precoces. Este hospital não realizou a maior parte do tratamento e nem o seguimento da maioria destes pacientes, mas desempenhou importante papel na investigação diagnóstica.

Lung cancer is a common cancer. In the southern region, are observed the highest incidence and mortality rates related to the disease in the country. The objective was to evaluate the profile of patients with lung cancer treated at a hospital in southern Brazil. The methodology was conducted a retrospective, cross-sectional, descriptive and analytical study using the Hospital database, from 2007 to 2010. We analyzed demographic, socioeconomic, tumor characteristics, diagnosis and treatment. Data were collected from 103 patients with lung cancer, with a median age of 65, male (71.8%), white (78.6%), with up to incomplete primary education (67%). The main histological type was adenocarcinoma (24.3%). There was no information about the staging in 48.5% of patients. The stadium 4foi found in 18.4% and only 10.7% had early stages (I and II). The median of days between the first visit and diagnosis was 15 days and between the first diagnosis and treatment 9dias. The main form of diagnosis was by histological examination of the primary tumor (48.5%). Only 27.2% of the patients underwent treatment at the institution and 14.6% underwent tumor resection. Most (74.8%) did not perform any treatment in the hospital. There was a tendency of adenocarcinomas in presenting themselves at early stages. This hospital did not perform most of the treatment nor the follow-up of most of these patients, but played an important role in diagnosis.

Long-acting muscarinic antagonists vs. long-acting ß 2 agonists in COPD exacerbations: a systematic review and meta-analysis.

OBJECTIVE: To determine whether long-acting muscarinic antagonists (LAMAs) provide superior therapeutic effects over long-acting ß2 agonists (LABAs) for preventing COPD exacerbations. METHODS: This was a systematic review and meta-analysis of randomized clinical trials involving patients with stable, moderate to severe COPD according to the Global Initiative for Chronic Obstructive Lung Disease criteria, treated with a LAMA (i.e., tiotropium bromide, aclidinium, or glycopyrronium), followed for at least 12 weeks and compared with controls using a LABA in isolation or in combination with a corticosteroid. RESULTS: A total of 2,622 studies were analyzed for possible inclusion on the basis of their title and abstract; 9 studies (17,120 participants) were included in the analysis. In comparison with LABAs, LAMAs led to a greater decrease in the exacerbation rate ratio (relative risk [RR] = 0.88; 95% CI: 0.84-0.93]; a lower proportion of patients who experienced at least one exacerbation (RR = 0.90; 95% CI: 0.87-0.94; p < 0.00001); a lower risk of exacerbation-related hospitalizations (RR = 0.78; 95% CI: 0.69-0.87; p < 0.0001); and a lower number of serious adverse events (RR = 0.81; 95% CI: 0.67-0.96; p = 0.0002). The overall quality of evidence was moderate for all outcomes. CONCLUSIONS: The major findings of this systematic review and meta-analysis were that LAMAs significantly reduced the exacerbation rate (exacerbation episodes/year), as well as the number of exacerbation episodes, of hospitalizations, and of serious adverse events.

Long-acting muscarinic antagonists vs. long-acting β 2 agonists in COPD exacerbations: a systematic review and meta-analysis / Antagonistas muscarínicos de longa duração vs. β 2 -agonistas de longa duração em exacerbações da DPOC: revisão sistemática e meta-análise

ABSTRACT Objective: To determine whether long-acting muscarinic antagonists (LAMAs) provide superior therapeutic effects over long-acting β2 agonists (LABAs) for preventing COPD exacerbations. Methods: This was a systematic review and meta-analysis of randomized clinical trials involving patients with stable, moderate to severe COPD according to the Global Initiative for Chronic Obstructive Lung Disease criteria, treated with a LAMA (i.e., tiotropium bromide, aclidinium, or glycopyrronium), followed for at least 12 weeks and compared with controls using a LABA in isolation or in combination with a corticosteroid. Results: A total of 2,622 studies were analyzed for possible inclusion on the basis of their title and abstract; 9 studies (17,120 participants) were included in the analysis. In comparison with LABAs, LAMAs led to a greater decrease in the exacerbation rate ratio (relative risk [RR] = 0.88; 95% CI: 0.84-0.93]; a lower proportion of patients who experienced at least one exacerbation (RR = 0.90; 95% CI: 0.87-0.94; p < 0.00001); a lower risk of exacerbation-related hospitalizations (RR = 0.78; 95% CI: 0.69-0.87; p < 0.0001); and a lower number of serious adverse events (RR = 0.81; 95% CI: 0.67-0.96; p = 0.0002). The overall quality of evidence was moderate for all outcomes. Conclusions: The major findings of this systematic review and meta-analysis were that LAMAs significantly reduced the exacerbation rate (exacerbation episodes/year), as well as the number of exacerbation episodes, of hospitalizations, and of serious adverse events.

RESUMO Objetivo: Determinar se long-acting muscarinic antagonists (LAMAs, antagonistas muscarínicos de longa duração) são superiores a long-acting β2 agonists (LABAs, β2-agonistas de longa duração) na prevenção de exacerbações da DPOC. Métodos: Revisão sistemática e meta-análise de ensaios clínicos controlados aleatórios com pacientes com DPOC estável, de moderada a grave, conforme os critérios da Global Initiative for Chronic Obstructive Lung Disease, tratados com LAMA (brometo de tiotrópio, aclidínio ou glicopirrônio), acompanhados durante pelo menos 12 semanas e comparados a controles que usaram LABA isoladamente ou com um corticosteroide. Resultados: Foram analisados 2.622 estudos para possível inclusão com base em seu título e resumo; 9 estudos (17.120 participantes) foram incluídos na análise. Em comparação com LABAs, LAMAs resultaram em maior diminuição da razão da taxa de exacerbações [risco relativo (RR) = 0,88; IC95%: 0,84-0,93]; menor proporção de pacientes que apresentaram pelo menos uma exacerbação (RR = 0,90; IC95%: 0,87-0,94; p < 0,00001); menor risco de hospitalizações em virtude de exacerbação da doença (RR = 0,78; IC95%: 0,69-0,87; p < 0,0001) e menor número de eventos adversos sérios (RR = 0,81; IC95%: 0,67-0,96; p = 0,0002). A qualidade geral das evidências foi moderada para todos os desfechos. Conclusões: O principal achado desta revisão sistemática e meta-análise foi que LAMAs reduziram significativamente a taxa de exacerbações (episódios de exacerbação/ano), os episódios de exacerbação, as hospitalizações e os eventos adversos sérios.

Chronic obstructive pulmonary disease exacerbation in the intensive care unit: clinical, functional and quality of life at discharge and 3 months of follow up. / Exacerbação de doença pulmonar obstrutiva crônica na unidade de terapia intensiva: avaliação clínica, funcional e da qualidade de vida na alta e após 3 meses de seguimento.

OBJECTIVE:: The purpose of this study was to evaluate the clinical/functional aspects and quality of life of chronic obstructive pulmonary disease patients who were discharged after an intensive care unit admission for acute respiratory failure. METHODS:: This prospective study included chronic obstructive pulmonary disease patients who were admitted to two intensive care units between December of 2010 and August of 2011 and evaluated over three visits after discharge. Thirty patients were included, and 20 patients completed the three-month follow up. RESULTS:: There was a significant improvement in the following: forced expiratory flow in one second (L) (1.1/1.4/1.4; p = 0.019), six-minute walk test (m) (- /232.8 /272.6; p = 0.04), BODE score (7.5/5.0/3.8; p = 0.001), cognition measured by the Mini Mental State Examination (21/23.5/23.5; p = 0.008) and quality of life measured by the total Saint George Respiratory Questionnaire score (63.3/56.8/51, p = 0.02). The mean difference in the total score was 12.3 (between visits 1 and three). Important clinical differences were observed for the symptom score (18.8), activities score (5.2) and impact score (14.3). The majority of participants (80%) reported they would be willing to undergo a new intensive care unit admission. CONCLUSION:: Despite the disease severity, there was a significant clinical, functional and quality of life improvement at the end of the third month. Most patients would be willing to undergo a new intensive care unit admission.

Exacerbação de doença pulmonar obstrutiva crônica na unidade de terapia intensiva: avaliação clínica, funcional e da qualidade de vida na alta e após 3 meses de seguimento / Chronic obstructive pulmonary disease exacerbation in the intensive care unit: clinical, functional and quality of life at discharge and 3 months of follow up

RESUMO Objetivo: Avaliar aspectos clínicos e funcionais, assim como qualidade de vida de pacientes com doença pulmonar obstrutiva crônica após receberem alta da unidade de terapia intensiva à qual foram admitidos por insuficiência respiratória aguda. Métodos: Estudo prospectivo que incluiu pacientes com doença pulmonar obstrutiva crônica admitidos a duas unidades de terapia intensiva entre dezembro de 2010 e agosto de 2011, e que foram avaliados em três visitas após a alta da unidade de terapia intensiva. Incluíram-se 31 pacientes e, destes, 20 pacientes completaram o seguimento de 3 meses. Resultados: Ocorreu melhora significante dos seguintes aspectos: volume expiratório forçado em 1 segundo (L) (1,1/1,4/1,4; p = 0,019), Teste de Caminhada de 6 Minutos (m) (- /232,8/272,6; p = 0,04), escore BODE (7,5/5,0/3,8; p = 0,001), cognição avaliada com uso da escala Mini Mental State Examination (21/23,5/23,5; p = 0,008) e qualidade de vida avaliada pelo Saint George Respiratory Questionnaire (63,3/56,8/51; p = 0,02). A diferença média no escore total foi de 12,3 (entre as visitas um e três). Observaram-se diferenças clínicas importantes em relação ao escore de sintomas (18,8), escore de atividades (5,2) e escore de impacto (14,3). A maior parte dos participantes (80%) relatou que aceitaria uma nova admissão à unidade de terapia intensiva. Conclusão: Apesar da gravidade da doença, ao final do terceiro mês ocorreu uma significativa melhora clínica, funcional e de qualidade de vida. A maior parte dos pacientes aceitaria submeter-se a uma nova internação na unidade de terapia intensiva.

ABSTRACT Objective: The purpose of this study was to evaluate the clinical/functional aspects and quality of life of chronic obstructive pulmonary disease patients who were discharged after an intensive care unit admission for acute respiratory failure. Methods: This prospective study included chronic obstructive pulmonary disease patients who were admitted to two intensive care units between December of 2010 and August of 2011 and evaluated over three visits after discharge. Thirty patients were included, and 20 patients completed the three-month follow up. Results: There was a significant improvement in the following: forced expiratory flow in one second (L) (1.1/1.4/1.4; p = 0.019), six-minute walk test (m) (- /232.8 /272.6; p = 0.04), BODE score (7.5/5.0/3.8; p = 0.001), cognition measured by the Mini Mental State Examination (21/23.5/23.5; p = 0.008) and quality of life measured by the total Saint George Respiratory Questionnaire score (63.3/56.8/51, p = 0.02). The mean difference in the total score was 12.3 (between visits 1 and three). Important clinical differences were observed for the symptom score (18.8), activities score (5.2) and impact score (14.3). The majority of participants (80%) reported they would be willing to undergo a new intensive care unit admission. Conclusion: Despite the disease severity, there was a significant clinical, functional and quality of life improvement at the end of the third month. Most patients would be willing to undergo a new intensive care unit admission.

Hospitalized patients with COPD: analysis of prior treatment.

OBJECTIVE: Although COPD is a prevalent disease, it is undertreated, and there are no available data regarding previous treatment of COPD in Brazil. This study aimed to determine the appropriateness of maintenance treatment in COPD patients prior to their hospitalization and to identify variables associated with inappropriate treatment. METHODS: This was an observational, cross-sectional, analytical study involving 50 inpatients with COPD at two hospitals in the city of Florianópolis, Brazil. The patients completed a questionnaire on parameters related to the maintenance treatment of COPD. Non-pharmacological management and pharmacological treatment were assessed based on the recommendations made by the Global Initiative for Chronic Obstructive Lung Disease (GOLD) in 2011 and by the Brazilian National Ministry of Health in the chronic respiratory diseases section of its Caderno de Atenção Básica (CAB, Primary Care Guidebook). RESULTS: In most of the patients, the COPD was classified as being severe or very severe. Regarding non-pharmacological management, 33% of the patients were smokers, only 32% had been advised to receive the flu vaccine, 28% had received pneumococcal vaccine, and only 6.5% of the patients in the B, C, and D categories received pulmonary rehabilitation. Regarding GOLD and CAB recommendations, pharmacological treatment was inappropriate in 50% and 74% of the patients, respectively. Based on GOLD recommendations, 38% were undertreated. A low level of education, low income, not receiving oxygen therapy, and not receiving the flu vaccine were associated with inappropriate treatment. CONCLUSIONS: The application of various non-pharmacological management recommendations was unsatisfactory. Regarding the GOLD recommendations, the high rate of inappropriate maintenance treatment was mainly due to undertreatment. In Brazil, even in severe COPD cases, optimizing treatment to achieve greater benefits continues to be a challenge.

Hospitalized patients with COPD: analysis of prior treatment / Pacientes portadores de DPOC hospitalizados: análise do tratamento prévio

Objective: Although COPD is a prevalent disease, it is undertreated, and there are no available data regarding previous treatment of COPD in Brazil. This study aimed to determine the appropriateness of maintenance treatment in COPD patients prior to their hospitalization and to identify variables associated with inappropriate treatment. Methods: This was an observational, cross-sectional, analytical study involving 50 inpatients with COPD at two hospitals in the city of Florianópolis, Brazil. The patients completed a questionnaire on parameters related to the maintenance treatment of COPD. Non-pharmacological management and pharmacological treatment were assessed based on the recommendations made by the Global Initiative for Chronic Obstructive Lung Disease (GOLD) in 2011 and by the Brazilian National Ministry of Health in the chronic respiratory diseases section of its Caderno de Atenção Básica (CAB, Primary Care Guidebook). Results: In most of the patients, the COPD was classified as being severe or very severe. Regarding non-pharmacological management, 33% of the patients were smokers, only 32% had been advised to receive the flu vaccine, 28% had received pneumococcal vaccine, and only 6.5% of the patients in the B, C, and D categories received pulmonary rehabilitation. Regarding GOLD and CAB recommendations, pharmacological treatment was inappropriate in 50% and 74% of the patients, respectively. Based on GOLD recommendations, 38% were undertreated. A low level of education, low income, not receiving oxygen therapy, and not receiving the flu vaccine were associated with inappropriate treatment. Conclusions: The application of various non-pharmacological management recommendations was unsatisfactory. Regarding the GOLD recommendations, the high rate of inappropriate maintenance treatment was mainly due to undertreatment. In Brazil, even in severe COPD cases, optimizing treatment to achieve greater ...

Objetivo: Embora a DPOC seja uma enfermidade prevalente, ela é subtratada, e dados sobre o tratamento prévio são desconhecidos em nosso meio. Buscou-se verificar a adequação às recentes diretrizes no que se refere ao tratamento de manutenção em pacientes com DPOC antes de sua hospitalização e identificar possíveis variáveis associadas à inadequação do tratamento. Métodos: Estudo transversal, observacional e analítico, que incluiu 50 portadores de DPOC, internados em dois hospitais na cidade de Florianópolis (SC). Aplicou-se um questionário sobre parâmetros relacionados ao tratamento de manutenção da DPOC. Avaliou-se o manejo não farmacológico e a adequação do tratamento farmacológico à terapia preconizada pelo Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2011 e pelo Caderno de Atenção Básica (CAB) do Ministério da Saúde do Brasil sobre doenças respiratórias crônicas. Resultados: Na maioria dos pacientes, a DPOC foi classificada como grave ou muito grave. Em relação ao manejo não farmacológico, 33% eram tabagistas, apenas 32% foram orientados a receber vacinação anti-influenza, 28% receberam vacina anti-pneumocócica, e somente 6,5% dos pacientes nas categorias GOLD B, C e D realizaram reabilitação respiratória. O tratamento farmacológico foi inadequado em 50% e 74% da amostra, respectivamente, em relação às recomendações do GOLD e do CAB. Baseado nas recomendações do GOLD, 38% eram subtratados. Baixa escolaridade, baixa renda, não utilização de oxigenoterapia e ausência de vacinação anti-influenza associaram-se a inadequação do tratamento. Conclusões: Não foram seguidas satisfatoriamente várias ...

Characteristics of COPD patients admitted to the ICU of a referral hospital for respiratory diseases in Brazil.

OBJECTIVE: To report data regarding COPD patients admitted to the ICU of a referral hospital for respiratory diseases, including outcomes and treatment evaluation. METHODS: Study of a series of patients with respiratory failure and COPD admitted to the ICU of Nereu Ramos Hospital, located in the city of Florianópolis, Brazil, between October of 2006 and October of 2007. Data related to demographics, causes of hospitalization, pharmacological treatment, ventilatory support, length of hospital stay, in-hospital complications, ICU mortality, and 28-day mortality were obtained from the medical charts of the patients. Acute Physiology and Chronic Health Evaluation II (APACHE II) scores were calculated. Mortality at 18 months was assessed by subsequent telephone calls. RESULTS: During the study period, 192 patients were admitted to the ICU, 24 (12.5%) of whom were diagnosed with respiratory failure and COPD. The mean length of ICU stay was 12.0 ± 11.1 days. Noninvasive ventilation was used in 10 of the 24 patients (41.66%) and failed in 5 of those 10. Invasive mechanical ventilation (IMV) was used in a total of 15 patients (62.5%). Overall ICU mortality and 28-day mortality were 20.83% and 33.33%, respectively. However, 18-month mortality was 62.5%. CONCLUSIONS: Respiratory failure associated with COPD was responsible for 12.5% of the ICU admissions. Orotracheal intubation and IMV were necessary in 62.5% of the cases. The ICU mortality rate was in accordance with that predicted by the APACHE II scores. However, late mortality was high.

Características de pacientes com DPOC internados em UTI de um hospital de referência para doenças respiratórias no Brasil / Characteristics of COPD patients admitted to the ICU of a referral hospital for respiratory diseases in Brazil

OBJETIVO: Relatar dados referentes às internações de pacientes com DPOC na UTI de um hospital de referência para doenças respiratórias, incluindo desfechos e avaliando seu atendimento. MÉTODOS: Estudo de uma série de pacientes internados por insuficiência respiratória e DPOC na UTI do Hospital Nereu Ramos, localizado na cidade de Florianópolis (SC) no período entre outubro de 2006 e outubro de 2007. Dados demográficos, causas da internação, tratamento farmacológico, suporte ventilatório, duração e complicações da internação, mortalidade em UTI e mortalidade em 28 dias foram obtidos através de consulta aos prontuários médicos. O índice Acute Physiology and Chronic Health Evaluation II (APACHE II) foi calculado. A mortalidade em 18 meses foi avaliada através de posterior contato telefônico. RESULTADOS: No período, foram internados 192 pacientes na UTI, 24 dos quais (12,5 por cento) com insuficiência respiratória e DPOC. O tempo médio de internação na UTI foi de 12,0 ± 11,1 dias. A ventilação não invasiva foi utilizada em 10 dos 24 pacientes (41,66 por cento) e falhou em 5/10. A ventilação mecânica invasiva (VMI) foi utilizada em 15 pacientes (62,5 por cento). As taxas de mortalidade na UTI e aquela em 28 dias foram de 20,83 por cento e 33,33 por cento, respectivamente. Entretanto, decorridos 18 meses, a mortalidade foi de 62,5 por cento. CONCLUSÕES: A insuficiência respiratória relacionada à DPOC foi responsável por 12,5 por cento das internações na UTI. Houve necessidade de intubação orotraqueal e utilização de VMI em 62,5 por cento dos pacientes. A mortalidade na UTI estava de acordo com a predita pelo índice APACHE II, mas a mortalidade tardia foi elevada.

OBJECTIVE: To report data regarding COPD patients admitted to the ICU of a referral hospital for respiratory diseases, including outcomes and treatment evaluation. METHODS: Study of a series of patients with respiratory failure and COPD admitted to the ICU of Nereu Ramos Hospital, located in the city of Florianópolis, Brazil, between October of 2006 and October of 2007. Data related to demographics, causes of hospitalization, pharmacological treatment, ventilatory support, length of hospital stay, in-hospital complications, ICU mortality, and 28-day mortality were obtained from the medical charts of the patients. Acute Physiology and Chronic Health Evaluation II (APACHE II) scores were calculated. Mortality at 18 months was assessed by subsequent telephone calls. RESULTS: During the study period, 192 patients were admitted to the ICU, 24 (12.5 percent) of whom were diagnosed with respiratory failure and COPD. The mean length of ICU stay was 12.0 ± 11.1 days. Noninvasive ventilation was used in 10 of the 24 patients (41.66 percent) and failed in 5 of those 10. Invasive mechanical ventilation (IMV) was used in a total of 15 patients (62.5 percent). Overall ICU mortality and 28-day mortality were 20.83 percent and 33.33 percent, respectively. However, 18-month mortality was 62.5 percent. CONCLUSIONS: Respiratory failure associated with COPD was responsible for 12.5 percent of the ICU admissions. Orotracheal intubation and IMV were necessary in 62.5 percent of the cases. The ICU mortality rate was in accordance with that predicted by the APACHE II scores. However, late mortality was high.

Mechanical ventilation in acute respiratory failure: recruitment and high positive end-expiratory pressure are necessary.

PURPOSE OF REVIEW: To review as best the critical care clinicians can recruit the acute respiratory distress syndrome (ARDS) lungs and keep the lungs opened, assuring homogeneous ventilation, and to present the experimental and clinical results of these mechanical ventilation strategies, along with possible improvements in patient outcome based on selected published medical literature from 1972 to 2004 (highlighting the period from June 2003 to June 2004 and recent results of the authors' group research). RECENT FINDINGS: In the experimental setting, repeated derecruitments accentuate lung injury during mechanical ventilation, whereas open lung concept strategies can attenuate lung injury. In the clinical setting, recruitment maneuvers improve short-term oxygenation in ARDS patients. A recent prospective clinical trial showed that low versus intermediate positive end-expiratory pressure (PEEP) levels (8 vs 13 cm H2O) associated with low tidal ventilation had the same effect on ARDS patient survival. Nevertheless, both conventional and electrical impedance thoracic tomography studies indicate that stepwise PEEP recruitment maneuvers increase lung volume and the recruitment percentage of lung tissue, and higher levels of PEEP (18-26 cm H2O) are necessary to keep the ARDS lungs opened and assure a more homogeneous low tidal ventilation. SUMMARY: Stepwise PEEP recruitment maneuvers can open collapsed ARDS lungs. Higher levels of PEEP are necessary to maintain the lungs open and assure homogenous ventilation in ARDS. In the near future, thoracic CT associated with high-performance monitoring of regional ventilation (electrical impedance tomography) may be used at the bedside to determine the optimal mechanical ventilation of ARDS patients.

Forma grave da síndrome pulmonar e cardiovascular por hantavírus tratada com pressurização positiva através de máscara facial / Severe form of hantavirus cardiopulmonary syndrome managed with continuous positive airway plessure through facial mask

O primeiro surto no Brasil da síndrome pulmonar e cardiovascular por hantavírus foi descrito em Juquitiba (SP), em 1993. Desde então têm sido descritos novos casos, especialmente nos estados do sul e sudeste do país. Em 2002 ocorreu a observação dos primeiros três casos em São Carlos (SP). Um dos pacientes recebeu suporte respiratório sem intubação traqueal, utilizando-se pressão positiva contínua nas vias aéreas (CPAP) através de máscara facial. Este é o primeiro caso grave descrito de insuficiência respiratória por hantavírus em que houve sucesso com essa terapêutica ventilatória.