Síndrome combinado de fibrosis pulmonar y enfisema: albores del tratamiento antifibrótico en el Paraguay

La concomitancia de fibrosis pulmonar en regiones inferiores del pulmón y enfisema en lóbulos superiores caracterizan a una entidad poco frecuente denominada síndrome combinado de fibrosis pulmonar y enfisema, que usualmente se asocia a alta carga de tabaquismo, aunque se describen otras asociaciones y que conlleva un pronóstico sombrío. La hipertensión pulmonar, el cáncer de pulmón y la exacerbación aguda son complicaciones posibles. En el contexto de un enfoque multidisciplinar de manejo de tres casos, relatamos el curso del tratamiento con pirfenidona.

The concomitance of pulmonary fibrosis in the lower regions of the lung and emphysema in the upper lobes characterize a rare entity called combined pulmonary fibrosis and emphysema syndrome, which is usually associated with a high burden of smoking, although other associations have been described and which carries a poor prognosis. Pulmonary hypertension, lung cancer, and acute exacerbation are possible complications. In the context of a multidisciplinary approach to the management of three cases, we report the course of treatment with pirfenidone.

Enfisema pulmonar congênito: relato de caso / Congenital pulmonary enphysema: case report

Introdução: O enfisema pulmonar congênito (EPC) é uma doença rara, possuindo uma incidência de 1:20-30 mil nascimentos, é mais comum no sexo masculino do que no feminino, em uma razão de 3:1 e sua etiologia permanece desconhecida. Um terço dos casos são sintomáticos ao nascer e praticamente todos são diagnosticados nos primeiros seis meses de vida. Relato de Caso: Recém-nascido (RN) do sexo masculino, evoluiu com desconforto respiratório precoce, sendo encaminhado ao centro de terapia intensiva. Após uso de continuous positive airway pressure (CPAP) e cateter nasal de oxigênio de 12 horas, resultou em bom padrão respiratório e boa saturação. Após realização de tomografia computadorizada, foi diagnosticado o EPC. Conclusão: O EPC é uma patologia rara e deve ser suspeitado em RN com desconforto respiratório, atribuindo-se importância aos vários diagnósticos diferenciais possíveis. Apesar da etiologia incerta, é de fácil diagnóstico e possui opções de manejo clínico e cirúrgico.

Introduction: Congenital pulmonary emphysema (EPC) is a rare disease, with an incidence of 1:20-30 thousand births, it is more common in males than in females, in a ratio of 3:1 and its etiology remains unknown. One third of the cases are symptomatic at birth and practically all are diagnosed in the first six months of life. Case Report: Newborn (NB) male, developed early respiratory distress, being referred to the intensive care unit. After using continuous positive airway pressure (CPAP) and a 12-hour oxygen nasal catheter, it resulted in a good breathing pattern and good saturation. After performing computed tomography, EPC was diagnosed. Conclusion: EPC is a rare pathology and should be suspected in newborns with respiratory distress, with importance being given to the various possible differential diagnoses. Despite its uncertain etiology, it is easy to diagnose and has options for clinical and surgical management.

Treatments used by chronic obstructive pulmonary disease patients in Brazil: National Survey of Health, 2013 / Tratamentos utilizados por portadores de DPOC no Brasil: Pesquisa Nacional de Saúde, 2013

ABSTRACT OBJECTIVE To estimate the prevalence of treatments used for the management of chronic obstructive pulmonary disease (COPD) in the Brazilian adult population. METHODS A population-based cross-sectional study with data from the 2013 Brazilian National Survey of Health, including individuals aged 40 years or older, with a self-reported medical diagnosis of COPD, chronic bronchitis and/or emphysema, who were asked about treatments used for disease management. RESULTS A total of 60,202 adults were interviewed, of which 636 were 40 years of age or older and had reported a medical diagnosis of COPD, emphysema, or chronic bronchitis. Less than half (49.4%) of the diagnosed population reported using some type of treatment, with differences regarding the macro-region of the country (South 53.8% - Northeast 41.2%, p = 0.007). Pharmacological treatment was the most reported, and emphysema patients had the highest proportion of those undergoing more than one type of treatment. Among the individuals who reported having only chronic bronchitis, 55.1% (95%CI: 48.7-61.4) used medication, 4.7% (95%CI: 2.6-8.3) underwent physical therapy, and 6.0% (95%CI: 3.6-9.9) oxygen therapy. On the other hand, among the emphysema patients, 44.1% (95%CI: 36.8-51.7) underwent drug treatment, 8.8% (95%CI: 5.4-14.2) physical therapy, and 10.0% (95%CI: 6.3-15.6) oxygen therapy. CONCLUSION The prevalence of treatments for COPD management was below ideal in 2013. The pharmacological treatment was the main type of treatment, followed by oxygen therapy and physical therapy.

RESUMO OBJETIVO Estimar a prevalência dos tratamentos utilizados para o manejo da doença pulmonar obstrutiva crônica (DPOC) na população adulta brasileira. MÉTODOS Estudo transversal de base populacional com dados oriundos da Pesquisa Nacional de Saúde de 2013, incluindo indivíduos com 40 anos ou mais, com diagnóstico médico autorreferido de DPOC, bronquite crônica e/ou enfisema, os quais foram questionados sobre tratamentos utilizados para o manejo da doença. RESULTADOS Foram entrevistados 60.202 adultos, dos quais 636 tinham 40 ou mais anos de idade e haviam referido diagnóstico médico de DPOC, enfisema ou bronquite crônica. Menos da metade (49,4%) da população diagnosticada relatou utilizar algum tipo de tratamento, havendo diferenças quanto à macrorregião do país (Sul 53,8% - Nordeste 41,2%, p = 0,007). O tratamento medicamentoso foi o mais referido e portadores de enfisema apresentaram a maior proporção de mais de um tipo de tratamento utilizado. Entre os indivíduos que declararam ter apenas bronquite crônica, 55,1% (IC95% 48,7-61,4) usavam medicamento, 4,7% (IC95% 2,6-8,3) realizavam fisioterapia e 6,0% (IC95% 3,6-9,9) oxigenoterapia. Por outro lado, entre os enfisematosos, 44,1% (IC95% 36,8-51,7) realizavam tratamento medicamentoso, 8,8% (IC95% 5,4-14,2) fisioterapia e 10,0% (IC95% 6,3-15,6) oxigenoterapia. CONCLUSÕES As prevalências de tratamentos para o manejo da DPOC estavam aquém do ideal em 2013. O medicamentoso foi o principal tipo de tratamento, seguido de oxigenoterapia e fisioterapia.

Clinical features and related factors of combined pulmonary interstitial fibrosis and emphysema syndrome in the elderly / 中华老年医学杂志

Objective:To summarize the clinical characteristics and risk factors of combined pulmonary fibrosis and emphysema syndrome(CPFE)in the elderly.Methods:42 patients with CPFE and 83 patients with idiopathic pulmonary fibrosis(IPF)admitted to Beijing Hospital from January 2015 to January 2020 were included for this retrospective study, and their clinical data, laboratory test results, imaging, pulmonary function and treatment outcomes were compared.The correlations of diffusing capacity of the lungs for carbon monoxide(DLCO)with lung volume and other ventilation-related parameters were analyzed.Multivariate Logistic analysis was used to screen for risk factors.Results:Compared with the IPF group, the proportions of patients who were male(78.6% or 33/42 vs.50.6% or 42/83), were smokers(78.6% or 33/42 vs.45.8% or 38/83)and had allergies(23.8% or 10/42 vs.4.8% or 4/83)were significantly higher in the CPFE group( χ2=9.090, 12.219, 8.293, P=0.003, 0.000, 0.004, respectively). Eosinophil counts were significantly higher in the CPFE group than in the other group[0.17×10 9/L with a(0.12-0.25)×10 9/L range vs.0.10×10 9/L with a(0.03-0.21)×10 9/L range]. In terms of pulmonary function tests, patients with CPFE had higher levels of vital capacity(VC)[2.60 L, range: (2.18-3.08)L vs.1.99 L, range: (1.48-2.63)L], total lung capacity(TLC)[4.54 L, range: (3.89-5.45)L vs.3.74 L, range: (2.92-4.70)L], forced vital capacity(FVC)[2.46 L, range: (2.12-3.08)L vs.1.95 L, range: (1.43-2.58)L], and forced expiratory volume in 1 second(FEV1)/FVC%[84.18%, range: (75.59-88.83)% vs.80.94%, range: (69.07-83.08)%], with significant differences from patients in the IPF group( Z=2.032, 2.248, 2.357, 2.421, 3.102, P=0.042, 0.025, 0.018, 0.015, 0.002). Positive correlations of DLCO were found with residual volume of the predicted(RV%pred), vital capacity of the predicted(VC%pred), alveolar ventilation of the predicted(VA%pred), total lung capacity of the predicted(TLC%pred), forced vital capacity of the predicted(FVC%pred), and percentage of forced expiratory volume in first second as predicted(FEV1%pred)in the IPF group( r=0.422, 0.370, 0.473, 0.520, 0.356, 0.267, P=0.000, 0.002, 0.000, 0.000, 0.003, 0.029), but not in the CPFE group.According to multivariate Logistic regression analysis, smoking( OR=5.421, 95% CI: 1.458-20.154, P=0.012)and allergies( OR=7.458, 95% CI: 1.795-30.979, P=0.006)were independent predictors of CPFE. Conclusions:The eosinophil count and lung volume in elderly CPFE patients are higher than those in IPF patients, and the significant feature is the decrease of DLCO, which is not correlated with changes in lung ventilation parameters and lung volume.Smoking and allergies are risk factors for CPFE in the elderly.

Neumotórax espontáneo y enfisema bulloso bilateral / Spontaneous pneumothorax and bilateral bullous emphysema

Introducción. El objetivo de este artículo fue reportar el caso de un paciente con antecedente de enfisema bulloso bilateral que le ocasionó un neumotórax persistente de difícil tratamiento. Caso clínico. Se trata de un paciente de 50 años de edad con diagnóstico de neumotórax asociado con un enfisema bulloso bilateral, en quien estaba contraindicado el tratamiento quirúrgico. El cuadro clínico comenzó con dolor en el hemitórax derecho y disnea, que se fue intensificando hasta el punto de no tolerar el decúbito. En la radiografía de tórax se observó colapso del pulmón derecho con múltiples bulas en ambos pulmones, por lo que se practicó una pleurotomía mínima alta derecha. La evolución del paciente no fue favorable por persistir el neumotórax, lo cual llevó al uso de un tratamiento alternativo. Discusión. En los pacientes con neumotórax persistente por enfisema bulloso bilateral sin indicación quirúrgica, el talco es una alternativa menos invasiva para lograr una sínfisis pleural con buenos resultados, método cuya utilidad se demuestra

Introduction. The aim of this report was to present the case of a patient with a history of bilateral bullous emphysema that causes a persistent pneumothorax that was difficult to treat. Clinical case. This is a 50-year-old patient diagnosed with pneumothorax associated with bilateral bullous emphysema, in whom surgical treatment being contraindicated. The clinical picture began with pain in the right hemithorax and dyspnea, which intensified to the point of not tolerating decubitus. In the chest X-ray, collapse of the right lung was observed with multiple bullae in both lungs, therefore a right upper minimum pleurotomy was performed. The patient's evolution was not favorable due to persisting pneumothorax, which led to the use of an alternative treatment. Discussion. In patients with persistent pneumothorax due to bilateral bullous emphysema without surgical indication, talc is a less invasive alternative to achieve a pleural symphysis with good results, a method whose utility is demonstrated

Analysis of relationship between the severity of chronic obstructive pulmonary disease and pulmonary function based on different threshold analysis of expiratory phase / 中国医学影像技术

Objective: To analyze the impact of the percentage of low attenuation area (LAA) in total lung volume (LAA%-950, LAA%-910, LAA%-856) with threshold lower than -856 HU, -910 HU and -950 HU on the severity of chronic obstructive pulmonary disease (COPD) in deep end expiratory CT scan, and to explore the correlations between quantitative indicators and pulmonary function. Methods: CT images in deep expiratory and clinical lung function data of 104 COPD patients were collected. The patients were divided into 4 groups according to global initiative for chronic obstructive lung disease (GOLD) guidelines. Then data were imported into the "digital lung" detection and analysis platform, and the mean lung density in expiratory phase (MLDex) and LAA%-950, LAA%-910, LAA%-856 were calculated. Pulmonary function indicators, including forced vital capacity (FVC), forced vital capacity expressed as percent predicted (FVC%), forced expiratory volume in 1 second expressed as percent predicted (FEV1%), FEV1/FVC, carbon monoxide diffusion capacity expressed as percent predicted (DLCO%), carbon monoxide diffusion capacity corrected for alveolar volume (DLCO/VA) and residual volume to total lung capacity ratio (RV/TLC) were obtained. CT quantitative parameters and pulmonary function indexes were compared among 4 groups, and correlations of CT quantitative parameters and lung function were analyzed. Multiple stepwise regression analysis was performed to observe the relationships of LAA%-950, LAA%-910, LAA%-856 and MLDex. Results: LAA%-950, LAA%-910 and MLDex were statistically significant among 4 groups (all P<0.01). LAA%-910 was negatively correlated with FVC, FVC%, FEV1%, FEV1/FVC, DLCO% and DLCO/VA, and positively correlated with RV/TLV. MLDex was negatively correlated with LAA%-950, LAA%-910 and Using LAA%-856. LAA%-950, LAA%-910 and MLDex could introduce a regression equation with R2=0.917 (P<0.01). Conclusion: Expiratory CT quantitative index LAA%-910 be used to accurately assess the severity of COPD and has good correlation with pulmonary function.

Lowest observed adverse effect level of pulmonary pathological alterations due to nitrous acid exposure in guinea pigs

BACKGROUND@#We previously demonstrated that continuous exposure to nitrous acid gas (HONO) for 4 weeks, at a concentration of 3.6 parts per million (ppm), induced pulmonary emphysema-like alterations in guinea pigs. In addition, we found that HONO affected asthma symptoms, based on the measurement of respiratory function in rats exposed to 5.8 ppm HONO. This study aimed to investigate the dose-response effects of HONO exposure on the histopathological alterations in the respiratory tract of guinea pigs to determine the lowest observed adverse effect level (LOAEL) of HONO.@*METHODS@#We continuously exposed male Hartley guinea pigs (n = 5) to four different concentrations of HONO (0.0, 0.1, 0.4, and 1.7 ppm) for 4 weeks (24 h/day). We performed histopathological analysis by observing lung tissue samples. We examined samples from three guinea pigs in each group under a light microscope and measured the alveolar mean linear intercept (Lm) and the thickness of the bronchial smooth muscle layer. We further examined samples from two guinea pigs in each group under a scanning electron microscope (SEM) and a transmission electron microscope (TEM).@*RESULTS@#We observed the following dose-dependent changes: pulmonary emphysema-like alterations in the centriacinar regions of alveolar ducts, significant increase in Lm in the 1.7 ppm HONO-exposure group, tendency for hyperplasia and pseudostratification of bronchial epithelial cells, and extension of the bronchial epithelial cells and smooth muscle cells in the alveolar duct regions.@*CONCLUSIONS@#These histopathological findings suggest that the LOAEL of HONO is < 0.1 ppm.

Verticalization of frontal P axis on electrocardiography in patients with acute exacerbation of chronic obstructive pulmonary disease and asthma / 中华全科医师杂志

Objective@#To investigate the clinical significance of verticalization of frontal P axis on electrocardiagraphy (ECG) in patients with acute exacerbation of chronic obstructive pulmonary disease (COPD) and asthma.@*Methods@#Thirty five COPD patients and 20 asthma patients with acute exacerbation admitted in Jing′an District Central Hospital were enrolled and 20 health subjects served as a control group. The 12 lead ECG examination, pulmonary function test and high resolution CT (HRCT) scan of lung were performed. The P axis in ECG, pulmonary function and CT emphysema score were compared among three groups. The correlation of P axis verticalization with pulmonary function and CT emphysema score was analyzed.@*Results@#There were significant differences in P axis(F=24.36), FEV1/FVC(F=39.36), FEV1(F=28.82), FEV1%(F=30.64), FVC%(F=3.45), PEF%(F=13.22), RV/TLC(F=10.46) and total emphysema score (F=50.60) among the three groups (all P<0.01). P axis was positively correlated with age(r=0.229), total emphysema score(r=0.567), upper lung emphysema score(r=0.542), middle lung emphysema score(r=0.507), lower lung emphysema score(r=0.572)(all P<0.01), and negative correlation with body mass index(r=-0.491), cardiothoracic ratio (r=-0.396), FEV1/FVC(r=-0.609), FEV1(r=-0.389), FEV1%(r=-0.460), and PEF% (r=-0.419)(all P<0.01). Taking P axis>60 ° as cut-off value for screening COPD, the sensitivity was 0.933, specificity was 0.667, positive predictive value was 0.833 and negative predictive value was 0.857.@*Conclusion@#The verticalization of frontal P axis on ECG is significantly associated with obstructive ventilation disorder and CT emphysema score, which can be used as a preliminary screening index for COPD.

Clinical analysis of 96 cases of congenital cystic lung lesions in children / 中华儿科杂志

Objective@#To summarize the diagnosis, clinical manifestations, treatment and prognosis of congenital cystic lung lesions.@*Methods@#A retrospective study described the clinical course of 96 patients (46 female and 50 male) diagnosed with congenital cystic lung lesions treated at the Tianjin Children′s Hospital from January 2010 to March 2019. The clinical findings, imaging examinations, pathological findings, treatment and follow-up were analyzed.@*Results@#Totally 96 patients (aged from 4 days to 13 years) with congenital cystic lung lesions were included in this study. Eighty-six patients (90%) were diagnosed when they had cough and fever symptoms. Forty (42%) patients exhibited congenital cystic adenomatoid malformation, 30 underwent surgical excision, two were at emergency operations and one dead. There were 12 (13%) patients with pulmonary sequestration and four were surgical treated. Twelve (13%) patients with bronchogenic cyst were included and 4 were surgically treated. There were 3 (3%) patients with congenital lobar emphysema and one was surgically treated. Another patient with pneumothorax was operated in other hospital 2 months after discharge. Twenty-nine (30%) patients with unclassified congenital cystic lung lesions could not be definitively diagnosed by CT. Some of them were difficult to be distinguished from necrotizing pneumonia. Finally, 2 patients were diagnosed as necrotizing pneumonia after 6, 10 months follow-up. After operation 37 out of 39 patients recovered well.@*Conclusions@#The diagnosis of congenital pulmonary cystic disease depend on imaging and pathological examination. Most patients are diagnosed when they have respiratory tract infection. The main clinical manifestations are cough and fever. The prognosis of operative management is good.

Analysis of the safety and feasibility of two closed thoracic drainage methods after video-assisted thoracoscopic lung volume reduction surgery / 中国胸心血管外科临床杂志

@#Objective    To investigate the effects of closed thoracic drainage with single tube or double tubes after video-assisted thoracoscopic lung volume reduction surgery. Methods    Retrospective analysis was performed on 50 patients (39 males, 11 females) who underwent three-port thoracoscopic lung volume reduction surgery in our hospital from January 2013 to March 2019. Twenty-five patients with single indwelling tube after surgery were divided into the observation group and 25 patients with double indwelling tubes were divided into the control group. Results    There was no significant difference in pulmonary retension on day 3 after surgery, postoperative complications, the patency rate of drainage tube before extubation, retention time or postoperative hospital stay (P>0.05). Postoperative pain and total amount of nonsteroidal analgesics use in the observation group was less than those in the control group (P<0.05). Conclusion    It is safe and effective to perform closed thoracic drainage with single indwelling tube after video-assisted thoracoscopic lung volume reduction surgery, which can significantly reduce the incidence of related adverse drug reactions and facilitate rapid postoperative rehabilitation with a reduction of postoperative pain and the use of analgesic drugs.

Pulmonary Hypertension in General Cardiology Practice / Hipertensão Pulmonar na Prática do Cardiologista

Abstract The finding of pulmonary hypertension (PH) by echocardiography is common and of concern. However, echocardiography is just a suggestive and non-diagnostic assessment of PH. When direct involvement of pulmonary circulation is suspected, invasive hemodynamic monitoring is recommended to establish the diagnosis. This assessent provides, in addition to the diagnostic confirmation, the correct identification of the vascular territory predominantly involved (arterial pulmonary or postcapillary). Treatment with specific medication for PH (phosphodiesterase type 5 inhibitors, endothelin receptor antagonists and prostacyclin analogues) has been proven effective in patients with pulmonary arterial hypertension, but its use in patients with PH due to left heart disease can even be damaging. In this review, we discuss the diagnosis criteria, how etiological investigation should be carried out, the clinical classification and, finally, the therapeutic recommendations for PH.

Resumo O achado de hipertensão pulmonar (HP) em avaliação ecocardiográfica é frequente e preocupante. No entanto, o ecocardiograma é apenas um exame sugestivo e não diagnóstico de HP. Quando se suspeita de acometimento direto da circulação pulmonar, está indicada medida hemodinâmica invasiva para estabelecer o diagnóstico. Essa avaliação permite, além da confirmação diagnóstica, a correta identificação do território vascular predominantemente acometido (arterial pulmonar ou pós-capilar). O tratamento com as medicações específicas de HP (inibidores da fosfodiestarese 5, antagonistas do receptor de endotelina, análogos da prostaciclina e estimulador da guanilil ciclase solúvel) é comprovadamente eficaz para pacientes com hipertensão arterial pulmonar, mas seu uso em pacientes com HP decorrente de doença cardíaca de câmaras esquerdas pode até mesmo ser prejudicial. Discutiremos nesta revisão o critério diagnóstico, a maneira de proceder a investigação etiológica, a classificação clínica e, finalmente, as recomendações terapêuticas na HP.

Resultados del tratamiento con pleurostomía en pacientes con neumotórax espontáneo / Outcomes of Pleurostomy Treatment in Patients with Spontaneous Pneumothorax

RESUMEN Introducción: La presencia de aire dentro de la cavidad pleural es definida como neumotórax. El tratamiento quirúrgico inicial es la pleurostomía, que puede acarrear complicaciones, relacionadas con varios factores, entre los cuales se encuentra el diámetro de la sonda intratorácica utilizada. Objetivo: Evaluar los resultados del tratamiento con pleurostomía en pacientes con neumotórax espontáneo en el Hospital Universitario Manuel Ascunce Domenech. Método: Se realizó un estudio descriptivo longitudinal retrospectivo desde septiembre de 2012 hasta septiembre de 2017. Se estudiaron 63 pacientes afectos de neumotórax espontáneos que recibieron pleurostomía como tratamiento inicial. Resultados: Los neumotórax espontáneos primarios representaron 56 por ciento de los casos. Del total de pacientes, 82 por ciento eran fumadores. En todos los pacientes el síntoma predominante fue el dolor. Las complicaciones fueron más frecuentes con el uso de sondas pleurales de menor diámetro (86 por ciento). Conclusiones: El neumotórax espontáneo primario fue el de mayor frecuencia. Las causas predominantes en el neumotórax secundario fueron las bulas de enfisema y la enfermedad pulmonar obstructiva crónica. En la totalidad de los casos, estuvo presente algunos de los síntomas del síndrome pleural con predominancia absoluta del dolor. El mayor número de complicaciones se presentó en pacientes fumadores(AU)

ABSTRACT Introduction: The presence of air within the pleural cavity is defined as pneumothorax. The initial surgical treatment is pleurostomy, which can lead to complications associated with several factors, among which is the diameter of the intrathoracic probe that is used. Objective: To evaluate the outcomes of the treatment with pleurostomy in patients with spontaneous pneumothorax at Manuel Ascunce Domenech University Hospital. Method: A retrospective, longitudinal, descriptive study was conducted from September 2012 to September 2017. We studied 63 patients affected by spontaneous pneumothorax who received pleurostomy as initial treatment. Results: Primary spontaneous pneumothorax accounted for 56 percent of the cases. From the total amount of patients, 82 percent were smokers. In all patients, the predominant symptom was pain. Complications were more frequent with the use of pleural probes of smaller diameter (86 percent). The primary spontaneous pneumothorax was the most frequent. The predominant causes of secondary pneumothorax were bullous emphysema and chronic obstructive pulmonary disease. In all the cases, some of the symptoms of pleural syndrome with absolute predominance of pain were present. The greatest number of complications occurred in smoking patients. Conclusions: Pleurostomy, with the use of the drainage catheter, is the initial treatment for all patients with spontaneous pneumothorax in our hospital, regardless of the diameter of the probe to be used according to the type of pneumothorax (primary or secondary)(AU)

Pneumostomia: uma proposta operatória para o tratamento do enfisema pulmonar difuso grave / Pneumostomy: an operative proposal for the treatment of severe diffuse pulmonary emphysema

RESUMO Objetivo: avaliar uma nova técnica operatória para o tratamento do enfisema pulmonar avançado. Métodos: análise prospectiva de nove pacientes portadores de enfisema pulmonar grave, submetidos à pneumostomia. O procedimento foi realizado sob anestesia local, na parede torácica anterior, linha hemiclavicular, no segundo espaço intercostal, através de toracotomia anterior de 5cm para acesso ao lobo superior, cujo segmento anterior foi pinçado e fixado à pleura parietal. Realizada pneumotomia com eletrocautério e inserção romba de dispositivo (dreno) intrapulmonar. Para avaliação do procedimento, foram realizados os seguintes exames: testes de função pulmonar, exames de imagens, teste da caminhada de seis minutos e questionários de qualidade de vida, medidos todos no pré-operatório e 30 dias após o procedimento. Resultados: não houve mortes relacionadas ao procedimento. Exames de imagens mostraram diminuição do volume pulmonar. A função pulmonar mostrou significante redução do volume residual. O teste de caminhada de seis minutos mostrou um aumento na distância percorrida no pós-operatório. Houve melhora significante da qualidade de vida, demonstrada por meio dos seguintes questionários: Medical Outcomes Study 36 Item Short - Form Health Survey (SF-36), Saint-George Respiratory Questionnaire (SGRQ), Medical Research Council scale (MRC) e Eastern Cooperative Oncology Group Performance status (ECOG). Conclusão: a técnica proposta é viável, segura, de fácil realização e manutenção.

ABSTRACT Objective: to evaluate a new operative technique for the treatment of advanced pulmonary emphysema. Methods: we conducted a prospective analysis of nine patients with severe pulmonary emphysema submitted to pneumostomy. The procedure was performed under local anesthesia, in the anterior thoracic wall, hemiclavicular line, in the second intercostal space, through an anterior thoracotomy of 5cm for access to the upper lobe, whose anterior segment was pinched and fixed to the parietal pleura. We carried out the pneumostomy with electrocautery and blunt insertion of an intrapulmonary drain. To assess the procedure, we performed pulmonary function tests, imaging tests, six-minute walk test, and applied quality of life questionnaires, all measured preoperatively and 30 days after the procedure. Results: no deaths occurred related to the procedure. Imaging studies showed a decrease in lung volume. The pulmonary function showed a significant reduction in the residual volume. The six-minute walk test showed an increase in the distance covered in the postoperative period. There was significant improvement of the quality of life as demonstrated through questionnaires Medical Outcomes Study 36 Item Short-Form Health Survey (SF-36), Saint-George Respiratory Questionnaire (SGRQ), Medical Research Council scale (MRC), and Eastern Cooperative Oncology Group Performance status (ECOG). Conclusion: the proposed technique is feasible, safe, easy to perform and to maintain.

Eficacia de la budesonida/formoterol comparado con la fluticasona/salmeterol en la mejoría de la capacidad pulmonar de personas mayores con Enfermedad Pulmonar Obstructiva Crónica: revisión sistemática de literatura / Effectiveness of budesonide/formoterol compared to fluticasone / salmeterol in improving the lung capacity of older people with Chronic Obstructive Pulmonary Disease: systematic literature review / Eficiência da budesonida/formoterol comparado com fluticasona/salmeterol na melhora da capacidade pulmonar de idosos com Doença Pulmonar Obstrutiva Crônica: revisão sistemática da literatura

Introducción. La Enfermedad Pulmonar Obstructiva Crónica (EPOC) es una patología no transmisible, caracterizada por una limitación de flujo de aire en las vías respiratorias debido a una respuesta inmunológica anormal frente a partículas. Objetivo. Conocer la eficacia que tiene la budesonida/formoterol comparado con la fluticasona/salmeterol en la mejoría de la capacidad pulmonar en personas mayores de 40 años con Enfermedad Pulmonar Obstructiva Crónica. Materiales y métodos. Se realizó una revisión sistemática de documentos producidos entre el año 2000 y 2018 en distintas bases de datos, donde se incluyeron ensayos clínicos. Se identificaron cuatro artículos para el análisis final. Resultados. Durante la evaluación comparativa de budesonida con formoterol, los artículos muestran un total de 709 personas evaluadas, con un promedio de edad de 53,5 años. El 65,4 % eran varones, el 21 % manifestaba no haber consumido tabaco, todos con diagnóstico de Enfermedad Pulmonar Obstructiva Crónica moderada-severa, según la escala GOLD (Global Initiative For Chronic Obstrutive Lung Disease). Los estudios determinaron que al administrar budesonida/formoterol de 400/12 mcg y 320/9 mcg, los pacientes tuvieron una leve mejoría en el Volumen Espiratorio Forzado del primer segundo (VEF1). Solo dos pacientes presentaron efectos adversos. No obstante, para los resultados mencionados anteriormente no se encontró diferencias significativas. Conclusiones. El uso de budesonida/formoterol es eficaz al mejorar la capacidad ventilatoria pulmonar, disminuye el número de exacerbaciones anuales y genera un adecuado control de los síntomas, sin embargo, es igual de efectivo a la fluticasona/salmeterol.

Introduction. Chronic Obstructive Pulmonary Disease (COPD) is a not transmissible disease, characterized by a limitation of airflow in the respiratory tract, due to an abnormal immune response to particles. Objective. This article aims to show that the application of budesonide / formoterol improves lung capacity in people over 40 years with Chronic Obstructive Pulmonary Disease. Materials and methods. A systematic review was conducted in the period between 2000 and 2018 in different databases where clinical trials were included. Four articles were identified for the final analysis. Results. During the comparative evaluation of budesonide with formoterol, a total of 709 people were evaluated, with an average age of 53.5 years, 65.4% were male, 21% reported not having used tobacco, all with a diagnosis of moderate-severe Chronic Obstructive Pulmonary Disease according to the GOLD scale (Global Initiative For Chronic Obstrutive Lung Disease). The studies determined that when budesonide / formoterol of 400/12 mcg and 320/9 mcg was administered, the patients had a slight improvement in the Forced Expiratory Volume of the first second (FEV1). Only two patients presented adverse effects. However, for the results mentioned above no significant differences were found. Conclusions. The use of budesonide / formoterol is effective in improving pulmonary ventilatory capacity, decreases the number of annual exacerbations and generates adequate control of symptoms, however, it is equally effective in fluticasone / salmeterol.

Introdução. A Doença Pulmonar Obstrutiva Crônica (DPOC) é uma patologia não transmissível, caraterizada por uma limitação do fluxo de ar nas vias aéreas devido a uma resposta imune anormal contra partículas. Objetivo. Conhecer a eficiência que apresenta a budesonida/formoterol comparado com fluticasona/salmeterol na melhora da capacidade pulmonar em pessoas com mais de 40 anos com Doença Pulmonar Obstrutiva Crônica. Materiais e métodos. Foi realizada uma revisão sistemática dos documentos produzidos entre 2000 e 2018 em diferentes bancos de dados, onde foram incluídos ensaios clínicos. Quatro artigos foram identificados para a análise final. Resultados. Durante a avaliação comparativa de budesonida com formoterol, os artículos mostram um total de 709 pessoas avaliadas, com uma idade média de 53,5 anos. O 65,4 % eram do sexo masculino, o 21 % disseram que não usavam tabaco, todos diagnosticados com Doença Pulmonar Obstrutiva Crônica moderada a grave, de acordo com a escala GOLD (Global Initiative For Chronic Obstrutive Lung Disease). Os estudos determinaram que administrar budesonida/formoterol de 400/12 mcg e 320/9 mcg, os pacientes apresentaram uma leve melhora no Volume Expiratório Forçado no primeiro segundo (VEF1). Apenas dois pacientes tiveram efeitos adversos. No entanto, não foram encontradas diferenças significativas para os resultados mencionados acima. Conclusões. O uso de budesonida/formoterol é eficaz na melhora da capacidade ventilatória pulmonar, diminui o numero de exacerbações anuais e gera controle adequado dos sintomas, no entanto, é igualmente eficaz para a fluticasona/salmeterol.

Effects of Fufang-Haqing capsule with formoterol in the treatment of pulmonary emphysema combined with chronic wheezing bronchitis / 国际中医中药杂志

Objective To explore the effects of Fufang-Haqing capsule with formoterol in the treatment of elderly pulmonary emphysema combined with chronic wheezing bronchitis. Methods A total of 156 patients with elderly pulmonary emphysema combined with chronic wheezing bronchitis in our hospital were divided into control group (88 cases) and observation group (88 cases). The control group was treated with formoterol, the observation group was treated with Fufang-Haqing capsule combined with formoterol. Both group treatment last three months. In the 2 groups, the levels of lung function indicators (FEV1, FEV1/FVC, PEF and PEFR), inflammatory markers [Matrix metalloproteinase inhibitors-1 (TIMP-1), interleukin-17 (IL-17), matrix metalloproteinase-9 (MMP-9) and interleukin-8 (IL-8)], immune function indicators [T lymphocyte subgroup (CD3+ and CD4+), immunoglobulin (IgA, IgG and IgM)] were detected before and after the treatment. During the treatment, the adverse actions were observed. Results The effect rate in treatment group was 93.2% (82/88), significantly higher than 80.7% (71/88) in control group (Z=3.781, P<0.05). After the treatment, the levels of FEV1 (2.89 ± 0.37 L vs. 2.22 ± 0.33 L, t=3.781), FEV1/FVC (65.10% ± 6.67% vs. 57.56% ± 5.98%, t=3.894), PEF (6.76 ± 0.69 L/S vs. 5.57 ± 0.59 L/S, t=3.351) and PEFR (3.67 ± 0.39 L/S vs. 2.87 ± 0.32 L/S, t=3.561) in the treatment group were significantly higher than those in the control group (P<0.05). The TIMP-1, IL-17, IL-8 and MMP-9 in the treatment group were significantly lower than those in the control group (t were 3.567, 3.692, 3.491, 3.394, all Ps<0.05), while the levels of CD3+, CD4+, IgA, IgG and IgM were in the treatment group were significantly higher than those in the control group (t were 3.791, 3.593, 3.258, 3.682, 3.526, all Ps<0.05). There was no significantly difference between the 2 groups in the adverse actions. Conclusions The Fufang-Haqing capsule with formoterol in the treatment of elderly pulmonary emphysema combined with chronic wheezing bronchitis showd good effect, could promote the levels of lung function, inflammatory and immune function.

Establishment and preliminary application of a voxel-based method for the quantitative analysis of air trapping / 中华放射学杂志

Objective To establish and validate a voxel-based method for the quantitative detection of air trapping (AT),and to explore its diagnostic value by preliminarily apply this method in chronic obstructive pulmonary disease (COPD) patients.Methods From March 2015 to February 2016,fifty healthy young volunteers and eighteen COPD patients who underwent both end-inspiratory and end-expiratory CT were included from the Digital Lung Multi-center Study.The quantitative parameters of AT and emphysema were measured by both the voxel-based quantitative method and the conventional threshold method,respectively.All subjects underwent pulmonary function examination within 3 days after CT examination.For healthy volunteers,paired sample rank-sum test was used to compare the difference of quantitative parameters between voxel-based method and threshold method,Spearman rank correlation analysis was used to investigate the correlation between quantitative parameters of the two methods and pulmonary function.For COPD patients,the distribution and extent of AT and emphysema in patients with similar degree of pulmonary function (PFT) injury were observed.Results There were varying degrees of AT in the asymptomatic youth,with a median value of 5.70％ for the voxel-based method and with a median value of 7.96％ for the conventional threshold method,there was significant difference(Z=-4.015,P＜0.001).The correlation between AT and emphysema parameters of the voxel-based method and PFT parameters (r=-0.399 and-0.494,-0.335 and-0.439 separately,P＜0.05) were higher than that of the conventional threshold method,respectively (r=-0.357 and-0.453,-0.284 and-0.391,respectively;all P＜0.05).Furthermore,the voxel-based method can classify COPD patients with similar degree of pulmonary function injury into three subtypes:AT-dominant,emphysema-dominant,and mixed.Conclusions The voxel-based AT quantitative measurement method not only has high sensitivity and accuracy,but also provides imaging phenotype for the diagnosis of COPD and provides assistant decision-making for clinical management.

Clinical value of low attenuation area ratio and lung volume on CT in evaluating severity of spirometric abnormality / 上海交通大学学报（医学版）

Objective • To explore the clinical value of the ratio of low attenuation areas (LAA%) and lung volume calculated according to chest CT in evaluating the severity of spirometric abnormality. Methods • The patients who underwent chest CT scan and lung function test at the same time from January 2010 to July 2014 in Ruijin Hospital, Shanghai Jiao Tong University School of Medicine were retrospectively enrolled. LAA% and lung volume were calculated by Myrian software. The correlation analysis was performed between post-bronchodiation forced expiratory volume in 1 second (FEV1) or its percentage of predicted value (FEV1%pred) and LAA% or lung volume. Multi-variable models for post-bronchodiation FEV1 and FEV1%pred were developed based on LAA%, lung volume, gender, height, and weight. The ROC curves were depicted and the diagnostic values of LAA%, lung volume, and models were compared. The cut points were chosen according to Younden indexes and specificity. Results • A total of 1 150 patients were included in summarization group. LAA% was negatively correlated with post-bronchodiation FEV1 and FEV1%pred. Lung volume was positively correlated with post-bronchodiation FEV1. The regression models of post-bronchodiation FEV1 and FEV1%pred were FEV1=-2.700+0.111×lung volume-0.216×ln (LAA%+0.1)-0.025×age+0.154×gender+0.034×height and FEV1%pred=65.582+4.014×lung volume-7.508×ln (LAA%+0.1)-10.264×gender, respectively. The regression model performed better than LAA% and lung volume in estimating the degree of post-bronchodiation FEV1 decrease. LAA% and the regression model performed better than lung volume in estimating the degree of post-bronchodiation FEV1%pred decrease. The sensitivity was 75.6% and the specificity was 90.6% in estimating post-bronchodiation FEV1%pred1.61% as the criteria. The sensitivity was 58.9% and the specificity was 81.4% in estimating post-bronchodiation FEV1<1 L by using the value of regression model<1.76. Conclusion • The regression models of post-bronchodiation FEV1 and FEV1%pred were obtained based on lung volume and LAA% on chest CT. LAA% and lung volume can roughly estimate the severity of spirometric abnormality.

Acute and chronic bovine pulmonary edema and emphysema in Uruguay / Edema e enfisema pulmonar agudo e crônico em bovinos do Uruguai

An outbreak of pulmonary edema and emphysema with acute and chronic cases is reported in a farm in Uruguay. In a herd of 40 Hereford steers, 20 died. The deaths began four days after a change of paddock, from an old pasture of Avena sativa to a lush growing pasture of the same grass. Acutely affected animals showed severe dyspnea, sialorrhea, cough, and subcutaneous edema, and died within 72 hours. Chronically affected steers showed dyspnea, respiratory noises, weight loss, and intolerance to exercise. The deaths began four days after the change of paddock. Ten days after the first death, the steers were withdrawn from the pasture, but continued dying throughout the following 40 days. Twenty animals died and six were necropsied. Grossly, the lungs were diffusely armed and glistening, with reddish and crepitant cut surface, and presented alveolar septae sharply distended by edema and emphysema. There was subpleural emphysema with air blebs distributed across the pleural surface. Presence of Dictyocaulus viviparus was observed in three steers. In some animals, the trachea was diffusely reddish with presence of pink foam; in some others, there was bloody liquid in the tracheal lumen. Histologic examination showed severe diffuse alveolar and interstitial emphysema, hyaline membranes adhered to the alveolar wall, thickening of the interlobular septae with proliferation of type II pneumocytes, and moderate-to-severe multifocal histiocytic, neutrophilic and eosinophilic infiltrate. In the trachea, there was submucosal hemorrhage and moderate multifocal eosinophilic and lymphocytic infiltrate. The steers with chronic signs presented similar lung lesions, but multifocal pulmonary fibrosis and cardiac dilatation were also observed. The diagnosis of acute bovine pulmonary emphysema and edema (ABPE) was based on the occurrence of the disease after introduction of the herd in a lush green pasture, on the characteristic gross and histologic lesions, and on the absence of other toxic or infectious agents causing similar lesions. Cattle raisers should be alert to the risks of occurrence of this disease after the introduction of the herds into paddocks with green and lush pastures.(AU)

Descreve-se um surto de edema e enfisema pulmonar com casos agudos e crônicos em bovinos em uma criação semi-intensiva no Uruguai. De um lote de 40 novilhos da raça Hereford morreram 20. As mortes começaram quatro dias após uma mudança de alimentação, de uma pastagem mais velha de Avena sativa, para uma pastagem recentemente plantada de aveia que estava em brotação. Os animais afetados apresentaram sinais clínicos agudos de dispneia, sialorreia, tosse e alguns desenvolveram edema subcutâneo, morrendo em até 72 horas. Outros novilhos mais cronicamente afetados apresentaram dispneia, ruídos respiratórios, perda de peso e intolerância ao exercício. As mortes começaram quatro dias após a mudança de pastagens. Dez dias após a primeira morte, os novilhos foram retirados do pasto, mas morreram ainda durante 40 dias mais. Ao total, morreram vinte animais e seis foram necropsiados. Nas necropsias dos animais mortos na fase aguda os pulmões estavam difusamente armados e brilhosos e ao corte de coloração avermelhada e crepitante, com os septos alveolares acentuadamente distendidos por edema e enfisema. Havia enfisema subpleural caracterizado por bolhas de ar distribuídas pela superfície pleural. Em três bovinos havia ainda presença de Dictyocaulus viviparus. Alguns animais apresentaram a traqueia difusamente avermelhada com espuma de coloração rósea ou liquido sanguinolento livre na luz traqueal. Histologicamente havia edema e enfisema alveolar e intersticial difuso severo, membranas hialinas espessas aderidas à parede alveolar, espessamento dos septos interlobulares com proliferação de pneumócitos tipo II e infiltrado inflamatório histiocítico, neutrofílico e eosinofílico multifocal moderado a severo. Na traqueia havia hemorragias na submucosa e infiltrado eosinofílico e linfocítico multifocal. Os novilhos com sinais crônicos apresentaram lesões pulmonares semelhantes, entretanto, foram observadas também, fibrose pulmonar multifocal e dilatação cardíaca. O diagnóstico de EEPAB baseou-se na ocorrência da doença após a introdução do rebanho em uma pastagem viçosa em brotação, nas características macroscópicas e histológicas e na ausência de outros agentes tóxicos ou infecciosos que causam lesões semelhantes. Se alerta para os riscos da ocorrência desta enfermidade, quando houver mudanças de pastagens.(AU)

Lobectomy with ecmo support in an infant who developed pulmonary interstitial emphysema following repair of hypoplastic aortic arch

Abstract Pulmonary interstitial emphysema (PIE) is a common problem in premature neonates with respiratory distress syndrome. This condition is often related to barotrauma caused by mechanical ventilation or continuous positive airway pressure applied to low birth weight neonates. The clinical diagnosis can be challenging. However, after proper diagnosis, several interventions are available for successful management. We describe an infant who developed severe PIE with recurrent pneumothoraces and development of a persistent bronchopleural fistula shortly after repair of a hypoplastic aortic arch and description of successful lobectomy with the assistance of extracorporeal support (ECMO).

Impact of Model-Based Iterative Reconstruction on the Correlation between Computed Tomography Quantification of a Low Lung Attenuation Area and Airway Measurements and Pulmonary Function Test Results in Normal Subjects

OBJECTIVE: To compare correlations between pulmonary function test (PFT) results and different reconstruction algorithms and to suggest the optimal reconstruction protocol for computed tomography (CT) quantification of low lung attenuation areas and airways in healthy individuals. MATERIALS AND METHODS: A total of 259 subjects with normal PFT and chest CT results were included. CT scans were reconstructed using filtered back projection, hybrid-iterative reconstruction, and model-based IR (MIR). For quantitative analysis, the emphysema index (EI) and wall area percentage (WA%) were determined. Subgroup analysis according to smoking history was also performed. RESULTS: The EIs of all the reconstruction algorithms correlated significantly with the forced expiratory volume in one second (FEV1)/forced vital capacity (FVC) (all p < 0.001). The EI of MIR showed the strongest correlation with FEV1/FVC (r = −0.437). WA% showed a significant correlation with FEV1 in all the reconstruction algorithms (all p < 0.05) correlated significantly with FEV1/FVC for MIR only (p < 0.001). The WA% of MIR showed the strongest correlations with FEV1 (r = −0.205) and FEV1/FVC (r = −0.250). In subgroup analysis, the EI of MIR had the strongest correlation with PFT in both ever-smoker and never-smoker subgroups, although there was no significant difference in the EI between the reconstruction algorithms. WA% of MIR showed a significantly thinner airway thickness than the other algorithms (49.7 ± 7.6 in ever-smokers and 49.5 ± 7.5 in never-smokers, all p < 0.001), and also showed the strongest correlation with PFT in both ever-smoker and never-smoker subgroups. CONCLUSION: CT quantification of low lung attenuation areas and airways by means of MIR showed the strongest correlation with PFT results among the algorithms used, in normal subjects.