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ABSTRACT Objective: To assess differences in the sputum microbiota of community-acquired pneumonia (CAP) patients with either COPD or asthma, specifically focusing on a patient population in Turkey. Methods: This retrospective study included hospitalized patients > 18 years of age with a diagnosis of pneumonia between January of 2021 and January of 2023. Participants were recruited from two hospitals, and three patient groups were considered: CAP patients with asthma, CAP patients with COPD, and CAP patients without COPD or asthma. Results: A total of 246 patients with CAP were included in the study, 184 (74.8%) and 62 (25.2%) being males and females, with a mean age of 66 ± 14 years. Among the participants, 52.9% had COPD, 14.2% had asthma, and 32.9% had CAP but no COPD or asthma. Upon analysis of sputum cultures, positive sputum culture growth was observed in 52.9% of patients. The most commonly isolated microorganisms were Pseudomonas aeruginosa (n = 40), Acinetobacter baumannii (n = 20), Klebsiella pneumoniae (n = 16), and Moraxella catarrhalis (n = 8). CAP patients with COPD were more likely to have a positive sputum culture (p = 0.038), a history of antibiotic use within the past three months (p = 0.03), utilization of long-term home oxygen therapy (p < 0.001), and use of noninvasive ventilation (p = 0.001) when compared with the other patient groups. Additionally, CAP patients with COPD had a higher CURB-65 score when compared with CAP patients with asthma (p = 0.004). Conclusions: This study demonstrates that CAP patients with COPD tend to have more severe presentations, while CAP patients with asthma show varied microbial profiles, underscoring the need for patient-specific management strategies in CAP.

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Introducción: investigaciones recientes con la práctica del taichí mostraron beneficios en la funcionalidad, capacidad de ejercicio y calidad de vida de los pacientes con enfermedad pulmonar obstructiva crónica (EPOC). La falta de estudios en nuestro medio y la necesidad de nuevas modalidades de tratamiento impulsó la realización de este trabajo. El objetivo fue valorar el impacto del taichí en un programa de rehabilitación respiratoria de la EPOC. Material y método: estudio piloto, aleatorizado, prospectivo y abierto. Se trabajó con 17 pacientes portadores de EPOC, 7 en el grupo control (CNTL) y 10 en el grupo tratamiento (TCm). Recibieron un programa de rehabilitación respiratoria durante 12 semanas. El grupo TCm con taichí como intervención terapéutica. Se comparó la similitud de las variables sociodemográficas y clínicas. Resultados: los grupos analizados fueron similares en la mayoría de las variables (edad, sexo, sociodemográficas, Gold, Charson, índice tabáquico IPA). En cuanto a las variables resultado, todas las categorías analizadas en los cuestionarios del índice PROMIS previo al inicio, al mes y a los tres meses, evidenciaron una mejoría entre los valores iniciales y finales en ambos grupos, siendo mayor en TCm, aunque no estadísticamente significativo, con valores p ≤ 0,05. En el cuestionario SGRQ, el análisis de los resultados no mostró diferencias significativas entre CNTL vs TCm al mes (44±5 vs 46±5 p 0,742) y a los tres meses (44±5 vs 40±6 p 0,916), con mejoras a favor en los valores del grupo TCm. El índice BODE registró valores menores, evidencia de una mejoría en grupo TCm a los tres meses (2±0,6 vs 3±0,4 p 0,889), sin ser estadísticamente significativa (p ≤ 0,05). Conclusiones: el beneficio del taichí dentro de un programa de rehabilitación tradicional mostró mejoras no significativas en funcionalidad y calidad de vida relacionada con la salud, su inclusión aparece como promisoria, requiriendo una mayor investigación futura.

Recent studies involving Tai Chi have shown benefits in the functionality, exercise capacity, and quality of life of patients with COPD. The lack of studies in our region and the need for new treatment modalities prompted this study. The objective was to assess the impact of Tai Chi in a Pulmonary Rehabilitation Program for COPD. Method: Pilot, randomized, prospective, and open-label study; with two similar groups of patients with COPD, who were included in a Pulmonary Rehabilitation program for 12 weeks; one of them with Tai Chi as a therapeutic intervention. The similarity of sociodemographic and clinical variables was compared. Results: The analyzed groups were similar in most variables (age, sex, sociodemographic, GOLD, Charlson, smoking index IPA). Within the outcome variables in the self-administered PROMIS index prior to the start, at one month, and at three months, all categories analyzed showed an improvement between the initial and final values in both groups, with a greater improvement in the TCm group, although not statistically significant with p-values ≤ 0.05. In the SGRQ questionnaire, the analysis of the results showed no significant differences between the CNTL and TCm groups at one month (44±5 vs. 46±5, p 0.742) and three months (44±5 vs. 40±6, p 0.916); with better values in the TCm group. The BODE Index recorded lower values, indicating an improvement in the TCm group at three months (2±0.6 vs. 3±0.4, p 0.889), although not statistically significant (p ≤ 0.05). Conclusions: The benefit of Tai Chi within a traditional rehabilitation program showed non-significant improvements in functionality and health-related quality of life. Its inclusion appears promising, requiring further future research.

Estudos recentes com Tai-chi mostraram benefícios na funcionalidade, capacidade de exercício e qualidade de vida em pacientes com DPOC. A falta de estudos em nosso meio e a necessidade de novas modalidades de tratamento motivaram o estudo. O objetivo foi avaliar o impacto do Tai-chi em um Programa de Reabilitação Respiratória para DPOC. Método: Estudo piloto, randomizado, prospectivo e aberto, com dois grupos semelhantes de pacientes com DPOC, que receberam um programa de reabilitação respiratória por 12 semanas; um deles com o Tai-chi como intervenção terapêutica. A similaridade das variáveis sociodemográficas e clínicas foi comparada. Resultados: Os grupos analisados foram semelhantes na maioria das variáveis (idade, sexo, dados sociodemográficos, GOLD, Charson, índice de tabagismo IPA). Dentro das variáveis de resultado no índice PROMIS autoadministrado na linha de base, em um mês e em 3 meses, todas as categorias analisadas mostraram uma melhora entre os valores iniciais e finais em ambos os grupos, sendo maior no grupo TCm, embora não estatisticamente significativa com valores de p ≤ 0,05. No questionário SGRQ, a análise dos resultados não mostrou diferenças significativas entre os grupos control e TCm em 1 mês (44±5 vs 46±5, p 0,742) e 3 meses (44±5 vs 40±6, p 0,916), com melhores valores no grupo TCm. O índice BODE registrou valores mais baixos, evidência de uma melhora no grupo TCm aos 3 meses (2±0,6 vs 3±0,4, p 0,889), sem ser estatisticamente significativo (p ≤ 0,05). Conclusões: O benefício do Tai-chi dentro de um programa de reabilitação tradicional mostrou melhorias não significativas na funcionalidade e na qualidade de vida relacionada à saúde; sua inclusão parece promissora e requer mais pesquisas.

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La aspergilosis es una infección fúngica causada por el microorganismo Aspergillus spp. Las manifestaciones clínicas dependen del estado inmunológico del paciente y de las alteraciones estructurales del parénquima pulmonar. Pese a su baja incidencia, siempre se debe considerar como diagnóstico diferencial en el contexto de pacientes con enfermedades pulmonares de base. Se presenta un caso de hombre de 66 años, agricultor, con antecedente de tuberculosis pulmonar y enfermedad pulmonar obstructiva crónica, quien consultó por cuadro de 5 meses de disnea progresiva, fiebre, tos, hemoptisis y pérdida de peso. Los hallazgos imagenológicos fueron sugestivos de tuberculosis pulmonar asociado a aspergiloma, lo que fue confirmado por tinción de hidróxido de potasio (KOH) y cultivo de hongos positivo para Aspergillus fumigatus. El Gene Xpert fue positivo para Mycobacterium tuberculosis demostrando coinfección activa.

Aspergillosis is a fungal infection caused by the microorganism Aspergillus spp. Clinical manifestations depend on the patient's immune status and structural alterations of the lung parenchyma. Despite its low incidence, it should always be considered as a differential diagnosis in the context of patients with underlying lung diseases. We present the case of a 66-year-old male farmer, with a history of pulmonary tuberculosis and chronic obstructive pulmonary disease, who presented with progressive dyspnea months, fever, cough, hemoptysis and weight loss for 5 months. Imaging findings were suggestive of aspergiloma- associated pulmonary tuberculosis, which was confirmed by potassium hydroxide (KOH) staining and positive fungal culture for Aspergillus fumigatus. Gene Xpert was positive for Mycobacterium tuberculosis showing active co-infection.

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Objetivo: Comparar as respostas neuromusculares e bioquímicas do dano e fadiga muscular do quadríceps femoral entre indivíduos com doença pulmonar obstrutiva crônica (DPOC) e saudáveis. Métodos: Estudo observacional, transversal e comparativo. A amostra foi composta por 18 indivíduos alocados em dois grupos distintos: Grupo DPOC (GD) e grupo saudáveis (GS), os quais foram avaliados por meio da espirometria, do desempenho neuromuscular do quadríceps, dos marcadores bioquímicos do dano e fadiga muscular, da fatigabilidade e da dor muscular. Resultados: Observou-se diferença estatisticamente significante na potência média entre o GD e GS (99,9 ± 21,0 vs 145,1 ± 51,5, respectivamente; p= 0,02) e uma tendência das médias de pico de torque (85,7 ± 24,4 vs 104,4 ± 31,0; p= 0,45) e trabalho total (1.305,5 ± 329,9 vs 1.671,5 ± 444,5; p= 0,06) serem menores no GD que no GS, respectivamente. A concentração da LDH imediatamente após o teste isocinético foi significantemente maior no GD que no GS (402,3 ± 33,6 vs 289,4 ± 33,6, respectivamente; p= 0,03). Conclusões: O presente estudo mostrou que pacientes com DPOC tem redução da capacidade de gerar força em um determinado período de tempo quando comparado a indivíduos saudáveis. A dosagem plasmática dos marcadores bioquímicos não permitiu confirmar que os pacientes com DPOC tem maior nível de dano muscular quando realizam exercício que os controles saudáveis.

Objective: To compare neuromuscular and biochemical responses of femoral quadriceps muscle damage and fatigue between chronic obstructive pulmonary disease (COPD) and healthy subjects. Methods: Observational, transversal and comparative study. The sample consisted of 18 subjects assigned to two distinct groups: COPD group (CG) and healthy group (HG), who were assessed by spirometry, quadriceps neuromuscular performance, biochemical markers of muscle damage and fatigue, fatigability and muscle pain. Results: Statistically significant difference was observed in mean power between CG and HG (99.9 ± 21.0 vs. 145.1 ± 51.5, respectively; p= 0.02) and a tendency of mean peak torque (85.7 ± 24.4 vs 104.4 ± 31.0, p= 0.45) and total work (1,305.5 ± 329.9 vs 1.671.5 ± 444.5; p= 0.06) were smaller in the CG than HG, respectively. The LDH concentration immediately after the isokinetic test was significantly higher in the CG than HG (402.3 ± 33.6 vs 289.4 ± 33.6, respectively; p= 0.03). Conclusions: The present study showed that patients with COPD have a reduced ability to generate force over a given period of time when compared to healthy subjects. The plasma levels of biochemical markers did not confirm that patients with COPD have a higher level of muscle damage when exercising than healthy controls.

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Objetivos: Evaluar la evolución de las comorbilidades en una cohorte de pacientes EPOC durante 5 años de seguimiento. Evaluar la mortalidad. Valorar y correlacionar la gravedad de la EPOC, el índice de COTE y la mortalidad. Material y Métodos: Estudio prospectivo observacional en una cohorte de pacientes EPOC durante 2015-2020, en el Servicio de Neumonología Hospital Privado Universitario de Córdoba. Información de Historias Clínicas electrónicas. Para predecir riesgo de mortalidad se utilizó el índice de COTE. Análisis estadístico: prueba exacta de Fisher, Prueba t de Student e InfoStat. Resultados: Sesenta y ocho pacientes, masculinos 37 (54,41%), edad 75 ± 6,69. Sin seguimiento: 2 pacientes. En el momento del ingreso, el tiempo del diagnóstico de EPOC fue de 13,23 ± 5,88 años. Más del 50% tenían EPOC moderado. Sin diferencias en VEF1/post-BD (0,57 en 2015 vs. 0,58 en 2020), ni en frecuencia de exacerbaciones en último año (1,06 ± 1,26 vs. 0,85 ± 1,44). En 2015, el 29,41% (n 20) eran TBQ activos y se redujo al 18,18% (n 12). En 2015, recibían CI el 73,53% (n 50) y en 2020 el 56,92% (n 37) (p 0,047). En 2015, un 4,41% (n 3) recibían esteroides sistémicos y se incrementó al 20% (n 13) en 2020 (p 0,007). Sin diferencias significativas en frecuencia de internaciones (0,13 ± 0,38 vs. 0,97 ± 2,34). índice de COTE ≥ 4, no se modificó significativamente a los 5 años: el 23,53% (n 16) vs. el 29,41% (n 20). Se detectó en 2020, un incremento de HTA (el 66%, n 45 vs. el 77%, p 0,181), depresión (el 19,12%, n 13 vs. el 30,30%, n 20, p 0,161) y ansiedad (el 22,06%, n 15 vs. el 32%, n 21, p 0,243). En 2020, diagnóstico de aneurisma de aorta abdominal en el 3,03% (n 2). Reducción de obesidad en el 25% (n 17) al 19,70% (n 13). En el seguimiento, fallecieron 9 pacientes (13,24%) y tenían menos comorbilidades (p < 0,009). Mayor mortalidad en pacientes con índice de COTE ≥ 4 (p 0,429). Los fallecidos tenían mayor gravedad de la EPOC, con menor VEF1/post-BD a 5 años (p 0,102). Aquellos con enfermedad cardiovascular o metabólica, a los 5 años, tenían menor proporción de fallecimiento (p < 0,05). Si bien los pacientes con índice de COTE en 2015 ≥ 4 presentaban menor promedio de VEF1/ post-BD al comienzo y en seguimiento a 5 años, la diferencia no fue significativa. Se observó que el índice de COTE aumentaba en pacientes EPOC con VEF1/post-BD de grado moderado y grave (p < 0,05). Discusión: Las comorbilidades de la EPOC constituyen un factor pronóstico con efecto acumulativo en morbimortalidad; por ello, la importancia de este estudio. Una limitación es la reducida población, que podría explicar que no se observó correlación entre mortalidad y aumento de comorbilidades. Destacamos el sobreuso de CI y esteroides sistémicos en esta población, a pesar de no tener incremento de exacerbaciones ni internaciones. Conclusiones: En 5 años de seguimiento de esta población EPOC con comorbilidades, se detectó un incremento de la HTA, depresión y ansiedad estadísticamente significativos. En un 3,03%, se diagnosticó aneurisma de aorta abdominal. La mortalidad a los 5 años fue del 13,24%. Hubo una correlación significativa entre la gravedad de la EPOC y el índice de COTE ≥ 4, pero ninguna de estas variables se correlacionó con la mortalidad. Nuestra principal limitación fue la reducida cohorte incluida(AU)

Objectives: To evaluate the evolution of comorbidities in a cohort of patients with COPD after 5 years of follow-up. To evaluate mortality. To assess and correlate COPD severity, COPD-specific comorbidity test (COTE) Index, and mortality. Materials and Methods: Prospective observational study in a cohort of patients with COPD during 2015-2020 at the Pulmonology Service of the Hospital Privado Universitario de Córdoba. Information of electronic medical records. In order to predict the mortality risks, we used the COTE Index. Statistical analysis: Fisher's exact test, Student's t test and InfoStat. Results: 68 patients, 37 male (54.41%), age 75 ± 6.69. 2 patients lost to follow-up. The time since COPD diagnosis was 13.23 ± 5.88 years at the study entry. More than 50% of patients had moderate COPD. There were no differences in post-bronchodilator FEV1(forced expiratory volume in one second) (0.57 in 2015 vs. 0.58 in 2020), nor in the frequency of exacerbations in the last year (1.06 ± 1.26 vs. 0.85 ± 1.44). In 2015, 29.41% of patients (n20) were active smokers, and the number was reduced to 18.18% (n12). In 2015, 73.53% of patients (n50) were receiving ICS (inhaled corticosteroids), and in 2020 the number decreased to 56.92% (n37) (p0.047). In 2015, 4.41% of patients (n3) were receiving systemic steroids, and the number increased to 20% (n13) in 2020 (p 0.007). There weren't any significant differences in the frequency of hospitalizations (0.13 ± 0.38 vs. 0.97 ± 2.34). COTE Index ≥ 4; no significant changes after 5 years: 23.53% (n16) vs. 29.41% (n20). In 2020, an increase in arterial hypertension (AHT) (66% n45 vs. 77%, p0.181), depression (19.12% n13 vs. 30.30% n20, p0.161) and anxiety (22.06% n15 vs. 32% n21, p0.243) was detected. In 2020, 3.03% of patients (n2) were diagnosed with abdominal aortic aneurism. Decrease in obesity from 25% (n17) to 19.70% of patients (n13). During follow-up, 9 patients died (13.24%), and they had fewer comorbidities (p < 0.009). Higher mortality in patients with COTE Index ≥ 4 (p0.429). Deceased patients had more severe COPD, with lower post-BD FEV1 after 5 years (p0.102). Patients with cardiovascular or metabolic disease had a lower mortality rate at 5 years (p < 0.05). Although patients with a COTE Index ≥ 4 in 2015 had a lower mean post-BD FEV1 at baseline and after the 5-year follow-up, the difference wasn't significant. It was observed that the COTE Index increased in patients with COPD with post-BD FEV1 of moderate to severe degree (p < 0.05). Discussion: The comorbidities of COPD constitute a prognostic factor with a cumulative effect on morbidity and mortality. Hence, the importance of this study. One limitation is the small population size, which could explain the lack of correlation between mortality and increased comorbidities. We highlight the overuse of ICS and systemic steroids in this population, despite not experiencing increased exacerbations or hospitalizations. Conclusions: After a 5-year follow-up of this COPD population with comorbidities, a statistically significant increase in AHT, depression, and anxiety was detected. 3.03% of patients were diagnosed with abdominal aortic aneurism. There was 13.24% mortality after 5 years. There was a significant correlation between the severity of COPD and a COTE Index ≥ 4, but neither of these variables correlated with mortality. Our main limitation was the small cohort included in this study(AU)

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The association between physical activity in daily life (PADL) and simple functional tests is not yet clearly understood in subjects with chronic obstructive pulmonary disease (COPD). Therefore, the aim of this study was to investigate the association of two functional tests (Sit-to-Stand test [STS] and the 4-Metre Gait Speed test [4MGS]) with PADL, as well as to identify whether these tests can discriminate those subjects who are physically inactive. In this cross-sectional study, 28 subjects with COPD performed the five repetitions Sit-to-Stand (STS5r), the 4MGS and used the DynaPort activity monitor for 7 days in order to assess PADL. Walking time, movement intensity while walking (MI) and Physical Activity Level index (PAL) were considered as PADL outcomes. STS5r and 4MGS, respectively, were significantly associated with walking time (R2 = 0.16; p = 0.024 and R2 = 0.25; p = 0.006) and PAL index (R2 = 0.17; p = 0.002 and R2 = 0.30; p = 0.003), whereas movement intensity was associated only with the 4MGS (R2 = 0.23; p = 0.009). Additionally, both tests were able to discriminate physically inactive subjects (cutoffs: STS5r = 11.48s [AUC = 0.73]; 4MGS = 1.09m/s [AUC = 0.88]). In conclusion, STS5r and 4MGS can predict up to 30% of PADL in subjects with COPD. Both tests are related to PADL duration (e.g. time spent walking), while only the 4MGS reflects movement intensity. Both tests presented discriminative capacity to identify subjects with worse PADL pattern.

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ABSTRACT Objective: To adapt the PROactive Physical Activity in COPD-clinical visit (C-PPAC) instrument to the cultural setting in Brazil and to determine the criterion validity, test-retest reliability agreement, and internal consistency of this version. Methods: A protocol for cultural adaptation and validation was provided by the authors of the original instrument and, together with another guideline, was applied in a Portuguese-language version developed by a partner research group from Portugal. The adapted Brazilian Portuguese version was then cross-sectionally administered twice within a seven-day interval to 30 individuals with COPD (57% were men; mean age was 69 ± 6 years; and mean FEV1 was 53 ± 18% of predicted) to evaluate internal consistency and test-retest reliability. Participants also completed the International Physical Activity Questionnaire (IPAQ), the modified Medical Research Council scale, the COPD Assessment Test, and Saint George's Respiratory Questionnaire to evaluate criterion validity. Results: The C-PPAC instrument showed good internal consistency and excellent test-retest reliability: "amount" domain = 0.87 (95% CI, 0.73-0.94) and "difficulty" domain = 0.90 (95% CI, 0.76-0.96). Bland & Altman plots, together with high Lin's concordance correlation coefficients, reinforced that agreement. Criterion validity showed moderate-to-strong correlations of the C-PPAC with all of the other instruments evaluated, especially with the IPAQ (rho = −0.63). Conclusions: The Brazilian Portuguese version of the C-PPAC is a reliable and valid instrument for evaluating the experience of Brazilian individuals with COPD with their physical activity in daily life.

RESUMO Objetivo: Adaptar o instrumento PROactive Physical Activity in COPD - clinical visit (C-PPAC) ao contexto cultural brasileiro e determinar a validade de critério, concordância da confiabilidade teste-reteste e consistência interna dessa versão. Métodos: Um protocolo de adaptação cultural e validação foi fornecido pelos autores do instrumento original e, juntamente com outra diretriz, foi aplicado em uma versão em português desenvolvida por um grupo de pesquisa parceiro de Portugal. A versão brasileira adaptada foi então aplicada transversalmente duas vezes, com intervalo de sete dias, em 30 indivíduos com DPOC (57% de homens; média de idade de 69 ± 6 anos; e média do VEF1 de 53 ± 18% do previsto) para avaliação da consistência interna e da confiabilidade teste-reteste. Os participantes também responderam ao International Physical Activity Questionnaire (IPAQ), à escala modificada do Medical Research Council, ao COPD Assessment Test e ao Saint George's Respiratory Questionnaire para avaliação da validade de critério. Resultados: O instrumento C-PPAC apresentou boa consistência interna e excelente confiabilidade teste-reteste: domínio "quantidade" = 0,87 (IC95%: 0,73-0,94) e domínio "dificuldade" = 0,90 (IC95%: 0,76-0,96). As disposições gráficas de Bland-Altman, juntamente com os altos coeficientes de correlação de concordância de Lin, reforçaram essa concordância. A validade de critério mostrou correlações moderadas a fortes do instrumento C-PPAC com todos os outros instrumentos avaliados, principalmente com o IPAQ (rho = −0,63). Conclusões: A versão brasileira do instrumento C-PPAC é uma ferramenta confiável e válida para avaliar a experiência de indivíduos brasileiros com DPOC em relação à sua atividade física na vida diária.

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ABSTRACT Objective: A substantial number of people with COPD suffer from exacerbations, which are defined as an acute worsening of respiratory symptoms. To minimize exacerbations, telehealth has emerged as an alternative to improve clinical management, access to health care, and support for self-management. Our objective was to map the evidence of telehealth/telemedicine for the monitoring of adult COPD patients after hospitalization due to an exacerbation. Methods: Bibliographic search was carried in PubMed, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Web of Science, Scopus, Biblioteca Virtual de Saúde/LILACS and Cochrane Library databases to identify articles describing telehealth and telemonitoring strategies in Portuguese, English, or Spanish published by December of 2021. Results: Thirty-nine articles, using the following concepts (number of articles), were included in this review: telehealth (21); telemonitoring (20); telemedicine (17); teleconsultation (5); teleassistance (4); telehomecare and telerehabilitation (3 each); telecommunication and mobile health (2 each); and e-health management, e-coach, telehome, telehealth care and televideo consultation (1 each). All these concepts describe strategies which use telephone and/or video calls for coaching, data monitoring, and health education leading to self-management or self-care, focusing on providing remote integrated home care with or without telemetry devices. Conclusions: This review demonstrated that telehealth/telemedicine in combination with telemonitoring can be an interesting strategy to benefit COPD patients after discharge from hospitalization for an exacerbation, by improving their quality of life and reducing re-hospitalizations, admissions to emergency services, hospital length of stay, and health care costs.

RESUMO Objetivo: Um número substancial de pessoas com DPOC sofre de exacerbações, definidas como uma piora aguda dos sintomas respiratórios. Para minimizar as exacerbações, a telessaúde surgiu como alternativa para melhorar o manejo clínico, o acesso aos cuidados de saúde e o apoio à autogestão. Nosso objetivo foi mapear as evidências de telessaúde/telemedicina para o monitoramento de pacientes adultos com DPOC após hospitalização por exacerbação. Métodos: Foi realizada uma pesquisa bibliográfica nos bancos de dados PubMed, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Web of Science, Scopus, Biblioteca Virtual de Saúde/LILACS e Cochrane Library para identificar artigos que descrevessem estratégias de telessaúde e telemonitoramento em português, inglês, ou espanhol, publicados até dezembro de 2021. Resultados: Trinta e nove artigos, utilizando os seguintes conceitos (número de artigos), foram incluídos nesta revisão: telessaúde (21); telemonitoramento (20); telemedicina (17); teleconsulta (5); teleassistência (4); telecuidado domiciliar e telerreabilitação (3 cada); telecomunicação e saúde móvel (2 cada); e gestão de e-saúde, e-coach, teledomicílio, cuidados de telessaúde e tele/videoconsulta (1 cada). Todos esses conceitos descrevem estratégias que utilizam chamadas telefônicas e/ou de vídeo para coaching, monitoramento de dados e educação em saúde levando à autogestão ou autocuidado, com foco na prestação de cuidados domiciliares remotos integrados, com ou sem dispositivos de telemetria. Conclusões: Esta revisão demonstrou que a telessaúde/telemedicina associada ao telemonitoramento pode ser uma estratégia interessante para beneficiar pacientes com DPOC após a alta hospitalar por exacerbação, por meio da melhora da qualidade de vida e da redução das re-hospitalizações, admissões em serviços de emergência, tempo de internação hospitalar e custos de cuidados de saúde.

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ABSTRACT Objectives: The study aimed to investigate the relationship between perceived stress level and death anxiety in individuals with COPD. Method: It was planned with a descriptive and relational screening design. It was carried out with the participation of 132 patients diagnosed with COPD. The study data were collected through Patient Information Form, Perceived Stress Scale, and Death Anxiety Scale. Descriptive statistics and multiple regression analysis were used in data analysis. Results: The COPD patients' total perceived stress scale and perceived insufficient self-efficacy and perceived stress/distress subscale mean scores were found as 32.75 ± 5.32, 15.81 ± 3.60, and 16.93 ± 2.97, respectively. The patients' Anxiety total scale mean score was determined to be 6.96 ± 3.40. A positive and statistically significant relationship was found between COPD patients' Perceived Stress total scale mean score and their Death Anxiety Scale mean score (F = 4.332, p < 0.05). Conclusion: Perceived stress level of COPD patients was found to be at a high level, while their death anxiety level was determined as moderate. It was also determined that as perceived stress levels of the patients increased, their death anxiety levels also increased.

RESUMEN Objetivos: Investigar la relación entre el nivel de estrés percibido y la ansiedad ante la muerte en personas con EPOC. Método: Se planificó con un diseño de screening descriptivo y relacional. En el estudio participaron 132 pacientes diagnosticados de EPOC. Los datos del estudio se recopilaron mediante el Formulario de información del paciente, la Escala de estrés percibido y la Escala de ansiedad ante la muerte. En el análisis de datos se utilizaron estadísticas descriptivas y análisis de regresión múltiple. Resultados: Las puntuaciones medias de la escala total de estrés percibido de los pacientes con EPOC y de la autoeficacia percibida insuficiente y de la subescala de estrés/angustia percibida fueron 32.75±5.32, 15.81±3.60 y 16.93±2.97 respectivamente. Se determinó que la puntuación media de la escala total de Ansiedad de los pacientes era 6.96 ± 3.40. Se encontró una relación positiva y estadísticamente significativa entre la puntuación media de la escala total de Estrés Percibido de los pacientes con EPOC y la puntuación media de la Escala de Ansiedad ante la Muerte (F = 4.332, p <0.05). Conclusión: Se descubrió que el nivel de estrés percibido por los pacientes con EPOC era alto, mientras que se determinó que su nivel de ansiedad ante la muerte era moderado. También se determinó que a medida que aumentaban los niveles de estrés percibido de los pacientes, también aumentaban sus niveles de ansiedad ante la muerte.

RESUMO Objetivos: Objetivou-se investigar a relação entre nível de estresse percebido e ansiedade de morte em indivíduos com DPOC. Método: Foi planejado com design de triagem descritiva e relacional. Foi realizado com a participação de 132 pacientes diagnosticados com DPOC. Os dados do estudo foram coletados por meio da Ficha de Informações do Paciente, da Escala de Estresse Percebido e da Escala de Ansiedade de Morte. Estatísticas descritivas e análises de regressão múltipla foram utilizadas na análise dos dados. Resultados: Os escores médios da escala total de estresse percebido e autoeficácia percebida insuficiente e estresse/angústia percebida dos pacientes com DPOC foram de 32.75 ± 5.32, 15.81 ± 3.60 e 16.93 ± 2.97, respectivamente. A pontuação média da escala total de ansiedade dos pacientes foi determinada em 6.96±3.40. Foi encontrada uma relação positiva e estatisticamente significativa entre a pontuação média da escala total de Estresse Percebido dos pacientes com DPOC e a pontuação média da Escala de Ansiedade da Morte (F = 4.332, p < 0.05). Conclusão: O nível de estresse percebido dos pacientes com DPOC foi considerado alto, enquanto o nível de ansiedade de morte foi considerado moderado. Também foi determinado que, à medida que os níveis de estresse percebidos pelos pacientes aumentavam, os níveis de ansiedade de morte também aumentavam.

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ABSTRACT OBJECTIVE To translate and cross-culturally adapt the COPD in Low- and middle-income countries (LMICs) Assessment (COLA) questionnaire into Brazilian Portuguese, a case-finding instrument for chronic obstructive pulmonary disease (COPD). METHODS Translation and cross-cultural adaptation were completed in six steps: the original version was translated into Brazilian Portuguese by two native speakers of the target language; the translated versions were synthesized; back-translation was performed by two native speakers of the original language; the back-translation and the Brazilian Portuguese version of the COLA were reviewed and harmonized by an expert committee of specialists; and, then, the pre-final version was tested by 30 health professionals who were asked if the items were clear to understand. The acceptability, clarity, and understandability of the translated version were evaluated. A final review of the questionnaire was produced by the authors and approved by the author of the original questionnaire. RESULTS Some idiomatic, semantic, and experiential inconsistencies were identified and properly adjusted. Item 3 was considered the most unclear item (23,3%). Items 7, 8, and 9 presented clarity above 80% (93%, 90%, and 90%, respectively). Suggestions were discussed and incorporated into the tool and COLA was found to be clear and easy to understand. CONCLUSIONS The Brazilian version of the COLA was easily understood by healthcare professionals and adapted to Brazilian culture. Translation and cultural adaptation of the COLA instrument into Brazilian Portuguese can be an important case-finding instrument for chronic obstructive pulmonary disease in Brazil.

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ABSTRACT Objective: To evaluate the association between the risk of death from COPD and air temperature events in ten major Brazilian microregions. Methods: This was a time series analysis of daily COPD deaths and daily mean air temperatures between 1996 and 2017. Using distributed nonlinear lag models, we estimated the cumulative relative risks of COPD mortality for four temperature percentiles (representing moderate and extreme cold and heat events) in relation to a minimum mortality temperature, with a lag of 21 days, in each microregion. Results: Significant associations were found between extreme air temperature events and the risk of death from COPD in the southern and southeastern microregions in Brazil. There was an association of extreme cold and an increased mortality risk in the following microregions: 36% (95% CI, 1.12-1.65), in Porto Alegre; 27% (95% CI, 1.03-1.58), in Curitiba; and 34% (95% CI, 1.19-1.52), in São Paulo; whereas moderate cold was associated with an increased risk of 20% (95% CI, 1.01-1.41), 33% (95% CI, 1.09-1.62), and 24% (95% CI, 1.12-1.38) in the same microregions, respectively. There was an increased COPD mortality risk in the São Paulo and Rio de Janeiro microregions: 17% (95% CI, 1.05-1.31) and 12% (95% CI, 1,02-1,23), respectively, due to moderate heat, and 23% (95% CI, 1,09-1,38) and 32% (95% CI, 1,15-1,50) due to extreme heat. Conclusions: Non-optimal air temperature events were associated with an increased risk of death from COPD in tropical and subtropical areas of Brazil.

RESUMO Objetivo: Avaliar a associação entre o risco de morte por DPOC e eventos de temperatura do ar em dez grandes microrregiões brasileiras. Métodos: Esta foi uma análise de série temporal de mortes diárias por DPOC e temperaturas médias diárias do ar entre 1996 e 2017. Utilizando modelos de defasagem não linear distribuídos, estimamos os riscos relativos cumulativos de mortalidade por DPOC para quatro percentis de temperatura (representando eventos moderados e extremos de frio e calor) em relação a uma temperatura mínima de mortalidade, com defasagem de 21 dias, em cada microrregião. Resultados: Foram encontradas associações significativas entre eventos extremos de temperatura do ar e o risco de morte por DPOC nas microrregiões Sul e Sudeste do Brasil. Houve associação de frio extremo e aumento do risco de mortalidade nas seguintes microrregiões: 36% (IC 95%, 1,12-1,65), em Porto Alegre; 27% (IC 95%, 1,03-1,58), em Curitiba; e 34% (IC 95%, 1,19-1,52), em São Paulo; enquanto o frio moderado foi associado a um risco aumentado de 20% (IC 95%, 1,01-1,41), 33% (IC 95%, 1,09-1,62) e 24% (IC 95%, 1,12-1,38) nas mesmas microrregiões, respectivamente. Houve aumento do risco de mortalidade por DPOC nas microrregiões de São Paulo e Rio de Janeiro: 17% (IC 95%, 1,05-1,31) e 12% (IC 95%, 1,02-1,23), respectivamente, devido ao calor moderado e 23% (IC 95%, 1,09-1,38) e 32% (IC 95%, 1,15-1,50) devido ao calor extremo. Conclusões: Eventos de temperatura do ar não ideal foram associados a um risco aumentado de morte por DPOC em áreas tropicais e subtropicais do Brasil.

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ABSTRACT Objective: Acute exacerbations of COPD (AECOPD) are common causes of hospitalization. Various scoring systems have been proposed to classify the risk of clinical deterioration or mortality in hospitalized patients with AECOPD. We sought to investigate whether clinical deterioration and mortality scores at admission can predict adverse events occurring during hospitalization and after discharge of patients with AECOPD. Methods: We performed a retrospective study of patients admitted with AECOPD. The National Early Warning Score 2 (NEWS2), the NEWS288-92%, the Dyspnea, Eosinopenia, Consolidation, Acidemia, and atrial Fibrillation (DECAF) score, and the modified DECAF (mDECAF) score were calculated at admission. We assessed the sensitivity, specificity, and overall performance of the scores for the following outcomes: in-hospital mortality; need for invasive mechanical ventilation or noninvasive ventilation (NIV); long hospital stays; hospital readmissions; and future AECOPD. Results: We included 119 patients admitted with AECOPD. The median age was 75 years, and 87.9% were male. The NEWS288-92% was associated with an 8.9% reduction in the number of individuals classified as requiring close, continuous observation, without an increased risk of death in the group of individuals classified as being low-risk patients. The NEWS288-92% and NEWS2 scores were found to be adequate in predicting the need for acute NIV and longer hospital stays. The DECAF and mDECAF scores were found to be better at predicting in-hospital mortality than the NEWS2 and NEWS288-92%. Conclusions: The NEWS288-92% safely reduces the need for clinical monitoring in patients with AECOPD when compared with the NEWS2. The NEWS2 and NEWS288-92% appear to be good predictors of the length of hospital stay and need for NIV, but they do not replace the DECAF and mDECAF scores as predictors of mortality.

RESUMO Objetivo: As exacerbações agudas da DPOC (EADPOC) são causas comuns de hospitalização. Vários escores foram propostos para classificar o risco de deterioração clínica ou mortalidade em pacientes hospitalizados com EADPOC. Buscamos investigar se escores de deterioração clínica e mortalidade no momento da admissão podem prever eventos adversos durante a hospitalização e após a alta de pacientes com EADPOC. Métodos: Realizamos um estudo retrospectivo a respeito de pacientes admitidos com EADPOC. O National Early Warning Score 2 (NEWS2), o NEWS288-92%, o escore Dyspnea, Eosinopenia, Consolidation, Acidemia, and atrial Fibrillation (DECAF, Dispneia, Eosinopenia, Consolidação, Acidemia e Fibrilação atrial) e o escore DECAF modificado (DECAFm) foram calculados no momento da admissão. Avaliamos a sensibilidade, a especificidade e o desempenho geral dos escores quanto aos seguintes desfechos: mortalidade hospitalar; necessidade de ventilação mecânica invasiva ou ventilação não invasiva (VNI); longas internações hospitalares; readmissões hospitalares e futuras AECOPD. Resultados: Incluímos 119 pacientes admitidos com EADPOC. A mediana da idade foi de 75 anos, e 87,9% eram do sexo masculino. O NEWS288-92% associou-se a uma redução de 8,9% no número de indivíduos classificados em pacientes com necessidade de observação atenta e contínua, sem aumento do risco de morte no grupo de indivíduos classificados em pacientes de baixo risco. O NEWS288-92% e o NEWS2 foram considerados adequados para prever a necessidade de VNI aguda e internações hospitalares mais longas. O DECAF e o DECAFm foram considerados melhores em prever a mortalidade hospitalar do que o NEWS2 e o NEWS288-92%. Conclusões: Em comparação com o NEWS2, o NEWS288-92% reduz com segurança a necessidade de monitoramento clínico em pacientes com EADPOC. O NEWS2 e o NEWS288-92% aparentemente são bons preditores do tempo de internação hospitalar e da necessidade de VNI, mas não substituem o DECAF e o DECAFm como preditores de mortalidade.

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RESUMEN Fundamento: La enfermedad pulmonar obstructiva crónica (EPOC) es un problema de salud y constituye la tercera causa de defunción en el mundo. La mortalidad es mayor en los pacientes que presentan exacerbaciones de esa enfermedad. Objetivo: Determinar los factores predictores de mortalidad en pacientes hospitalizados con exacerbación de EPOC en una institución hospitalaria del segundo nivel de atención en Cuba. Metodología: Se realizó un estudio transversal en el Hospital General Provincial Camilo Cienfuegos de Sancti Spíritus, durante dos años. Se incluyeron 335 pacientes. Las variables recogidas se agruparon en sociodemográficas, clínicas, enfermedades crónicas asociadas y estado del paciente al egreso. Se elaboró un árbol de decisión mediante el método Chaid exhaustivo, la variable dependiente fue la mortalidad por EPOC. Resultados: Predominaron los pacientes del sexo femenino (55.2 %), con 60 años o más (79 %) y con más de 4 exacerbaciones en el último año (53.1 %). El modelo del árbol de decisión tuvo una sensibilidad de 97 %, especificidad de 89.3 % y un porcentaje global de pronóstico correcto del 93.1 %. Se identificaron seis variables predictores de mortalidad: insuficiencia respiratoria aguda, diagnóstico de neumonía, no utilización de antitrombóticos, tromboembolismo pulmonar, edad mayor de 60 años y el hábito de fumar. Conclusiones: La probabilidad más alta de fallecer durante una exacerbación de EPOC se da entre los pacientes con insuficiencia respiratoria aguda, los que son diagnosticados con neumonía durante el ingreso, los que no realizan tratamiento antitrombótico y los que tienen más de 60 años de edad.

ABSTRACT Background: Chronic obstructive pulmonary disease (COPD) is a health problem and the third cause of death in the world. Mortality is higher in patients who present exacerbations of this disease. Objective: To determine mortality predictors in hospitalized patients with exacerbation of COPD in a second care level hospital in Cuba. Methodology: A cross-sectional study was conducted at Camilo Cienfuegos Provincial General Hospital in Sancti Spíritus, for two years. 335 patients were included. The variables collected were grouped into sociodemographic, clinical, associated chronic diseases and patient status at discharge. A decision tree was developed using the exhaustive Chaid method, the dependent variable was mortality from COPD. Results: Female patients (55.2 %), 60 years or older (79 %) and with more than 4 exacerbations in the last year (53.1 %) predominated. The decision tree model had a sensitivity of 97 %, a specificity of 89.3 %, and an overall percentage of correct diagnosis of 93.1 %. Six variables that predicted mortality were identified: acute respiratory failure, diagnosis of pneumonia, non-use of antithrombotics, pulmonary thromboembolism, age over 60 years, and smoking. Conclusions: The highest probability of dying during an exacerbation of COPD occurs among patients with acute respiratory failure, those who are diagnosed with pneumonia during admission, those who do not receive antithrombotic treatment and those who are over 60 years of age.

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Abstract Objective: To perform a quantitative assessment of bronchial wall thickening and the emphysema score in patients with stable chronic obstructive pulmonary disease (COPD), comparing the eosinophilic and non-eosinophilic COPD phenotypes. Materials and Methods: This was a retrospective observational study of patients with COPD followed between August 2018 and July 2019. The patients were divided into two groups by the eosinophil count in peripheral blood: eosinophilic (≥ 300 cells/µL); and non-eosinophilic (< 300 cells/µL). Quantitative, automated assessments of emphysema and bronchial wall thickness were performed by evaluating computed tomography scans of the chest. Results: We evaluated the records of 110 patients diagnosed with COPD: 28 (25.5%) in the eosinophilic group; and 82 (74.5%) in the non-eosinophilic group. The demographic, clinical, functional, and therapeutic variables were comparable between the two groups. There were no significant differences between the two groups in terms of the emphysema score or bronchial wall thickness (p > 0.05 for both). Conclusion: Patients with eosinophilic COPD do not appear to have lower emphysema scores or greater bronchial wall thickening than do those with non-eosinophilic phenotypes of the disease.

Resumo Objetivo: Avaliar quantitativamente o escore de enfisema e o espessamento da parede brônquica de pacientes com doença pulmonar obstrutiva crônica (DPOC) estável e comparar os fenótipos eosinofílico e não eosinofílico. Materiais e Métodos: Estudo observacional, transversal, retrospectivo, que avaliou pacientes com DPOC no período de agosto de 2018 a julho de 2019. Os pacientes foram separados dois grupos, de acordo com o número de eosinófilos periféricos: os eosinofílicos (≥ 300 células/µL) e os não eosinofílicos (< 300 células/µL). Foram realizadas avaliações quantitativas e automatizadas de enfisema e de espessamento brônquico para os dois grupos por meio de tomografia computadorizada de tórax. Resultados: Foram coletados dados de 110 pacientes com o diagnóstico de DPOC, dos quais 28 (25,5%) apresentaram perfil eosinofílico. As variáveis demográficas, clínicas, funcionais e terapêuticas do grupo dos pacientes com perfil eosinofílico foram semelhantes às do grupo não eosinofílico. Não se observaram diferenças significativas em relação ao escore de enfisema e à medida de espessura de parede brônquica entre os dois grupos (p > 0,05). Conclusão: Neste estudo, os pacientes com fenótipo eosinofílico não apresentaram menor escore de enfisema e nem maior espessamento parietal brônquico.

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BACKGROUND: Chronic Obstructive Pulmonary Disease (COPD) remains one of the leading causes of morbidity and mortality worldwide, and its epidemiology in Latin America and the Caribbean is not well described. The aim of this study was to evaluate the prevalence and incidence of COPD in Latin America and the Caribbean. METHODS: We searched systematically in Web of Science (WoS)/Core Collection, WoS/MEDLINE, WoS/Scielo, Scopus, PubMed, and Embase from 2010 to 2021. Studies assessing the prevalence and incidence of COPD according to the GOLD classification were included. The overall prevalence of COPD was calculated as a function of the general population using a random-effects model. RESULTS: 20 studies (19 cross-sectional and 1 cohort) met the inclusion criteria. The prevalence of COPD in the general population older than 35 years was 8.9%. The prevalence in men was 13.7% and in women 6.7%. The prevalence in smokers and ex-smokers was 24.3%. The incidence in the general population of COPD according to one study was 3.4% at 9 years of follow-up. CONCLUSIONS: COPD is prevalent in Latin America, especially in men and in smokers and ex-smokers. Further prevalence and incidence studies in the general population are needed, as well as health policies and strategies to address the disease.

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Diabetes mellitus, tabagismo e dislipidemia são mais prevalentes em pacientes com doença pulmonar obstrutiva crônica (DPOC), a quarta causa de mortalidade no mundo. Este estudo empregou um modelo de doença pulmonar em ratos Wistar que incorporou esses três fatores de risco e investigou os efeitos da Baccharis trimera, uma planta medicinal amplamente utilizada, uma vez que nenhum estudo avaliou seus efeitos pulmonares. Os ratos diabéticos e dislipidêmicos foram expostos à fumaça de cigarro por 4 semanas e tratados com veículo (grupo C-), extrato de B. trimera (HEBT), ou sinvastatina+insulina, por 2 semanas. O lavado broncoalveolar foi realizado para avaliar a inflamação. Os pulmões foram coletados para análises histopatológicas e do estado redox. Foi observada diminuição do peso corporal, aumento do estresse oxidativo, inflamação e alterações histopatológicas no grupo C-. HEBT reverteu essas alterações e apresentou efeito antiinflamatório moderado. O tratamento com HEBT apresentou efeitos promissores para a DPOC.

Diabetes mellitus, smoking, and dyslipidemia are more prevalent in patients with chronic obstructive pulmonary disease (COPD), the fourth leading cause of mortality worldwide. This study employed a model of lung disease in Wistar rats that incorporated these three risk factors, and investigated the effects of Baccharis trimera, a widely used medicinal plant, since no previous studies have evaluated its pulmonary effects. The diabetic and dyslipidemic rats were exposed to smoke for 4 weeks and treated with vehicle (C- group), an extract of B. trimera (HEBT), or simvastatin+insulin, for 2 weeks. The bronchoalveolar lavage was performed to evaluate inflammation. The lungs were collected for histopathological and redox state analyses. A decrease in body weight, an increase in oxidative stress, inflammation, and histopathological changes were observed in C- group. HEBT reversed these alterations and had a moderate antiinflammatory effect. Treatment with HEBT present promising effects for COPD.

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To analyze the presence of gastroesophageal reflux disease (GERD) and dysphagia in patients with chronic obstructive pulmonary disease (COPD) and evaluate associated factors. Cross-sectional study part of a large cohort study. The Dysphagia Handicap Index (DHI), Gastroesophageal Reflux Disease Symptoms Questionnaire (QS-GERD) and The Eating Assessment Tool (EAT-10) were applied. A medical consultation, spirometry examination, and health status assessments (by modified Medical Research Council scale - mMRC, COPD Assessment Test - CAT, Saint George Respiratory Questionnaire - SGRQ) were performed on the same day as the DHI, QS-GERD and EAT-10. Thirty-four individuals participated in the study, with a mean age of 65.2 (SD=7.9) complete years with COPD, 52.9% being female, and a body mass index of 26.6 (SD=6.3) kg/m2. Eleven individuals were classified as having risk for dysphagia. The evaluation of gastroesophageal reflux symptoms through the QS-DRGE showed moderate correlation with EAT-10. The GERD SQ instrument showed moderate correlation with the SGRQ, as well as in the three domains, finding that the presence of GERD symptoms is a factor that is associated with worsening quality of life. It is concluded that patients with COPD present symptoms of dysphagia and gastroesophageal reflux. In this study, it was found that the presence of GERD symptoms and swallowing disorders are factors associated with worsening quality of life. (AU)

Avaliar a presença de sintomas da doença do refluxo gastroesofágico (DRGE) e disfagia em pacientes portadores de doença pulmonar obstrutiva crônica (DPOC) e analisar os fatores associados. Estudo transversal aninhado a um estudo de coorte. Foram aplicados os instrumentos Índice de Desvantagem da Deglutição (IDD), Questionário de Sintomas na Doença do Refluxo Gastroesofágico (QS-DRGE) e o Instrumento de Autoavaliação da Alimentação (EAT-10). No mesmo dia da aplicação dos instrumentos foram realizadas a consulta médica, exame espirometria e avaliação do estado de saúde e qualidade de vida, avaliados por meio do Saint George Respiratory Questionnaire (SGRQ). Participaram do estudo 34 indivíduos com média de idade de 65,2 (DP=7,9) anos completos portadores de DPOC, sendo 52,9% do sexo feminino e índice de massa corporal de 26,6 (DP= 6,3) kg/m2. Onze indivíduos ficaram classificados como tendo risco para disfagia. A avaliação dos sintomas de refluxo gastroesofágico através do QS-DRGE apontou correlação moderada com EAT-10. O instrumento QSDRGE apresentou correlação moderada com o SGRQ, assim como nos três domínios, constatando-se que a presença de sintomas de DRGE é um fator que está associado à piora da qualidade de vida. Conclui-se que pacientes com DPOC apresentam sintomas de disfagia e de refluxo gastroesofágico. Nesse estudo, constatou-se que a presença de sintomas de DRGE e os distúrbios da deglutição são fatores que estão associado à piora da qualidade de vida. (AU)

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Introducción: la EPOC es altamente subdiagnosticada, por lo que aplicar escalas de predicción clínica como el COPD Diagnostic Questionnaire (CDQ) ayuda a abordar este problema. Sin embargo, se desconoce su rendimiento en nuestra población. Objetivo: evaluar la validez de criterio y reproducibilidad intraevaluador del CDQ en una población colombiana. Materiales y métodos: estudio de cohorte prospectivo. La reproducibilidad se valoró con el estadístico Kappa y el coeficiente de correlación intraclase (CCI). La validez se estableció con el puntaje obtenido del cuestionario CDQ y los valores espirométricos VEF1/CVF 16,5 y < 19,5 y probabilidad alta de EPOC CDQ ≥ 19,6. El ACOR fue de 0,68 (IC95%: 0,647-0,712) y se obtuvo una sensibilidad del 79% y una especificidad del 44% para un puntaje ≥ 16,5, con un VPP del 26% y un VPN del 86%. Conclusiones: el cuestionario CDQ tiene un rendimiento regular para el diagnóstico de la EPOC con una ACOR similar a otros cuestionarios, puede ser útil en pacientes subdiagnosticados y el punto de corte óptimo para esta población fue de 16,5.

Summary Background: COPD is highly underdiagnosed, thus applying clinical prediction scales such as the COPD Diagnostic Questionnaire (CDQ) helps to address this problem. Objective: To evaluate the criterion validity and intra-rater reproducibility of the questionnaire CDQ in a Colombian population. Materials and methods: A prospective cohort study. The reproducibility was assessed with the Kappa statistic and the intraclass correlation coefficient (ICC). Validity was established with the score obtained from the CDQ questionnaire and the spirometry values (FEV1/ FVC 16.5 and < 19.5, and high probability of CDQ COPD ≥ 19.6. The ACOR was 0.68 (95%CI: 0.647-0.712), a sensitivity of 79% and a specificity of 44% were obtained for a score ≥16.5, with a PPV of 26% and a NPV of 86%. Conclusions: The CDQ questionnaire has a regular performance for the diagnosis of COPD with an ACOR similar to other questionnaires, it can be useful in underdiagnosed patients. The optimal cut-off point for this population was 16.5.

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Abstract Background: Right ventricular dysfunction is a major complication in chronic obstructive pulmonary disease (COPD) and, despite its prognostic implications, is rarely considered in routine clinical analysis. Objectives: To compare RV function variables with standard and advanced echocardiographic techniques in patients with stable COPD and controls. Methods: Twenty COPD patients classified as GOLD ≥ II (13 men aged 68.4 ± 8.3 years) and 20 matched controls were compared. Myocardial strain/strain rate indices were obtained by tissue Doppler and two-dimensional speckle tracking echocardiography. Right ventricular ejection fraction was obtained with three-dimensional software. Free wall myocardial thickness (FWMT) and tricuspid annular systolic excursion (TAPSE) were also measured. Numerical variables were compared between groups with Student's t-test or the Mann-Whitney test. Associations between categorical variables were determined with Fisher's exact test. P-values < 0.05 were considered statistically significant. Results: All myocardial deformation indices, particularly global longitudinal strain (-17.2 ± 4.4 vs -21.2: ± 4.4 = 0.001) and 3D right ventricular ejection fraction (40.8 ± 9.3% vs 51.1 ± 6.4% p <0.001) were reduced in COPD patients. These patients presented higher right ventricular FWMT and lower TAPSE values than controls. Conclusion: Myocardial deformation indices, either tissue Doppler or speckle tracking echocardiography and 3D right ventricular ejection fraction, are robust markers of right ventricular dysfunction in patients with stable COPD. Assessing global longitudinal strain by speckle tracking echocardiography is a more practical and reproducible method.

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