Terapia con cánula nasal de alto flujo en pacientes pediátricos en domicilio / High flow nasal cannula therapy in pediatric patients at home

Se realiza comentario de estudio de Israel en el cual analizan 75 pacientes pediátricos que utilizaron cánula nasal de alto flujo (CNAF) en domicilio, evaluando la seguridad, las indicaciones, los parámetros de utilización, la duración del tratamiento, los resultados clínicos y la satisfacción de los padres. Se acompaña de una revisión de la literatura del tema.

A comment is made on a study conducted in Israel analyzing 75 pediatric patients who used high-flow nasal cannula at home, evaluating safety, indications, utilization parameters, treatment duration, clinical outcomes, and parental satisfaction. It is accompanied by a literature review on the topic.

Molecular hydrogen is a promising therapeutic agent for pulmonary disease / 浙江大学学报（英文版）（B辑：生物医学和生物技术）

Molecular hydrogen exerts biological effects on nearly all organs. It has anti-oxidative, anti-inflammatory, and anti-aging effects and contributes to the regulation of autophagy and cell death. As the primary organ for gas exchange, the lungs are constantly exposed to various harmful environmental irritants. Short- or long-term exposure to these harmful substances often results in lung injury, causing respiratory and lung diseases. Acute and chronic respiratory diseases have high rates of morbidity and mortality and have become a major public health concern worldwide. For example, coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has become a global pandemic. An increasing number of studies have revealed that hydrogen may protect the lungs from diverse diseases, including acute lung injury, chronic obstructive pulmonary disease, asthma, lung cancer, pulmonary arterial hypertension, and pulmonary fibrosis. In this review, we highlight the multiple functions of hydrogen and the mechanisms underlying its protective effects in various lung diseases, with a focus on its roles in disease pathogenesis and clinical significance.

Extracorporeal membrane oxygenation and lung transplantation: initial experience at a single brazilian center

OBJECTIVE: To report initial experience from the use of extracorporeal membrane oxygenation (ECMO) in patients who received lung transplantation. METHODS: Retrospective study of a single tertiary center in the Brazilian state of São Paulo, a national reference in lung transplantation, based on the prospective collection of data from electronic medical records. The period analyzed extended from January 2009 (beginning of the program) until December 2018. RESULTS: A total of 75 lung transplants were performed, with ECMO used in 8 (10.7%) cases. Of the patients, 4 (50%) were female. The mean age was 46.4±14.3 years. The causes of the end-stage lung disease that led to transplantation were pulmonary arterial hypertension in 3 (37.5%) patients, bronchiectasis in 2 (25%) patients, pulmonary fibrosis in 2 (25%) patients, and pulmonary emphysema in 1 (12.5%) patient. In our series, 7 (87.5%) cases were sequential bilateral transplantations. Prioritization was necessary in 4 (50%) patients, and in 1 patient, ECMO was used as a bridge to transplantation. The ECMO route was central in 4 (50%), peripheral venovenous in 2 (25%) and peripheral venoarterial in 2 (25%) patients. The mean length of the intensive care unit (ICU) stay was 14±7.5 days and of the hospital stay was 34.1±34.2 days. The mean ECMO duration was 9.3±6.6 days with a 50% decannulation rate. Three patients were discharged (37.5%). CONCLUSION: Lung transplantation requires complex treatment, and ECMO has allowed extending the indications for transplantation and provided adjuvant support in the clinical management of these patients.

Actinomicosis pulmonar en niños: reporte de dos casos peruanos / Pulmonary actinomycosis in children: report of two Peruvian cases

INTRODUCCIÓN: La actinomicosis es una enfermedad infecciosa poco frecuente, ocasionada por una bacteria Gram positiva. La especie más común es Actinomyces israelii. Dentro de sus formas de presentación, la torácica es la menos frecuente. PRESENTACIÓN DE CASOS: Reportamos dos pacientes con actinomicosis torácica de 8 y 13 años de diferentes zonas geográficas de Perú. El primer caso tuvo empiema necessitatis y el segundo, consolidación pulmonar y hemoptisis recurrente. Ambos tuvieron cierto grado de dificultad en su diagnóstico, pero con una buena respuesta al tratamiento antibiótico y quirúrgico. El diagnóstico fue mediante estudio histopatológico. Sin embargo, no se pudo identificar la especie de Actinomyces. CONCLUSIÓN: La actinomicosis torácica es poco frecuente en niños y se presenta como una lesión parenquimal con posible fistulización a la pared torácica. Este es uno de los pocos casos reportados en la literatura peruana, constituyendo una contribución al conocimiento de esta enfermedad y su manejo en pediatría.

INTRODUCTION: Actinomycosis is a rare infectious disease caused by Gram-positive bacteria. The most common species is Actinomyces israelii. Among its forms of presentation, the thoracic is the least frequent. CASE PRESENTATION: We report two patients with thoracic actinomycosis, 8 and 13 years old, from different geographical areas of Peru. The first case had empyema necessitans and the second, lung consolidation and recurrent hemoptysis. Both had a certain degree of difficulty in their diagnosis but responded favorably to antibiotics and surgical treatment. The diagnosis was based on the histopathological study. However, we were not able to ascertain the species of actinomyces. CONCLUSION: Thoracic actinomycosis is rare in children and presents as a parenchymal lesion with possible fistulization to the chest wall. This article is one of the few in the Peruvian literature, constituting a contribution to the knowledge of the disease and its management in pediatrics.

Palliative care in pulmonary medicine / Cuidados paliativos em pneumologia

ABSTRACT Palliative care was initially developed for patients with advanced cancer. The concept has evolved and now encompasses any life-threatening chronic disease. Studies carried out to compare end-of-life symptoms have shown that although symptoms such as pain and dyspnea are as prevalent in patients with lung disease as in patients with cancer, the former receive less palliative treatment than do the latter. There is a need to refute the idea that palliative care should be adopted only when curative treatment is no longer possible. Palliative care should be provided in conjunction with curative treatment at the time of diagnosis, by means of a joint decision-making process; that is, the patient and the physician should work together to plan the therapy, seeking to improve quality of life while reducing physical, psychological, and spiritual suffering.

RESUMO Inicialmente os cuidados paliativos foram desenvolvidos para pacientes com câncer avançado. Hoje este conceito evoluiu e engloba qualquer doença crônica que ameace a vida. Estudos realizados para comparar os sintomas de fim de vida mostraram que os pacientes pneumológicos apresentavam a mesma prevalência de sintomas, como dor e dispneia, porém recebiam menos tratamento paliativo que os pacientes oncológicos. É preciso desmitificar a ideia de que cuidados paliativos só devem ser adotados quando não há mais possibilidade de tratamento curativo. O cuidado paliativo deve ser associado ao tratamento curativo no momento do diagnóstico, por meio de decisão compartilhada, isto é, paciente e médico planejam as decisões sobre a terapêutica a ser tomada, buscam a melhora na qualidade de vida e a redução do sofrimento, tanto espiritual como físico e psicológico.

Tratamiento de la discinecia ciliar primaria / Treatmen of ciliary primary discinesia

At present, there is no specific treatment for primary ciliary dyskinesia, nor controlled and randomized clinical trials to determine how the management and monitoring of these patients should be considered. The therapeutic options are extrapolated from other diseases, such as cystic fibrosis, or non-cystic fibrosis bronchiectasis. However, the implementation of specific groups of experts, both in the USA (PDC-foundation) and in Europe (BESTCILIA or BEAT-PD), are helping to increase knowledge of the disease, opening research channels and seeking new treatments. Until we have therapies capable of correcting the basic defect of the disease, the pillars of treatment are the daily cleansing of the airways and aggressive antibiotherapy against respiratory infections. Multidisciplinary care in specialized centers where pulmonary function is monitored and the infection is prevented and treated will improve, as in cystic fibrosis, the results of patients.

En la actualidad no existe un tratamiento específico para la discinesia ciliar primaria, ni se cuenta con ensayos clínicos controlados y randomizados que permitan determinar cómo debe plantearse el manejo y seguimiento de estos pacientes. Las opciones terapéuticas son extrapoladas de otras enfermedades, como la fibrosis quística, o las bronquiectasias no fibrosis quística. Sin embargo, la puesta en marcha de grupos específicos de expertos, tanto en USA (PDC-foundation) como en Europa (BESTCILIA o BEAT-PD), están permitiendo incrementar el conocimiento de la enfermedad, abriendo vías de investigación y buscando nuevos tratamientos. Hasta contar con terapias capaces de corregir el defecto básico de la enfermedad, los pilares del tratamiento son la limpieza diaria de las vías aéreas y la antibioterapia agresiva frente a las infecciones respiratorias. La atención multidisciplinar en centros especializados donde se monitorice la función pulmonar y se prevengan y traten las infecciones mejorará, como en la fibrosis quística, los resultados de los pacientes.

Rol de la broncoscopía en el paciente pediátrico / The role of bronchoscopy in children

Pediatric bronchoscopy has played an important role in the practice of pulmonology, having important advances in recent years. It is now possible to perform diagnostic and therapeutic procedures with this technique. Rigid bronchoscopy continues to have a significant character in the identification and management of foreign bodies in the airways. On the other hand, flexible bronchoscopy, with the improvement in the quality of the image, is becoming an important tool for the practice of pediatric pulmonology, having a longer reach than rigid bronchoscopy. This becomes a valuable instrument for the diagnosis and treatment of pathologies where rigid bronchoscopy cannot reach

El papel de la broncoscopía pediátrica ha adquirido importancia en la práctica de la neumología, con grandes avances en los últimos años. Actualmente es posible realizar procedimientos diagnósticos y terapéuticos con estos instrumentos. La broncoscopía rígida sigue teniendo un carácter significativo en la identificación y manejo de cuerpos extraños en vía aérea. Por su parte la broncoscopía flexible con la mejoría en la calidad de la imagen, cada vez se posiciona como una herramienta de gran utilidad para el ejercicio de la neumología pediátrica, al tener mejor alcance que la broncoscopía rígida

Supuración pleuropulmonar / Pleuropulmonary suppuration

Las supuraciones pleuropulmonares (SPP) son el resultado de la progresión del proceso infeccioso (generalmente bacteriano) hacia la cavidad pleural contigua. En un amplio porcentaje de casos (90%) el derrame paraneumónico generado es estéril. Se presentan dos situaciones clínicas, examenes, tratamiento, reflexiones y comentarios

A study of pulmonary function in end-stage renal disease patients on hemodialysis: a cross-sectional study

ABSTRACT BACKGROUND: The aim here was to study acute effects of hemodialysis among end-stage renal disease (ESRD) patients. DESIGN AND SETTING: Prospective study in tertiary-level care center. METHODS: Fifty ESRD patients undergoing hemodialysis were studied. Spirometric pulmonary function tests were performed before and after four-hour hemodialysis sessions. RESULTS: The patients' average age was 45.8 ± 10.0 years; 64% were males and 64% had normal body mass index. Anemia (94%) and hypoalbuminemia (72%) were common. Diabetes mellitus (68%), hypertension (34%) and coronary artery disease (18%) were major comorbidities. Forty-five patients (90%) had been on hemodialysis for six months to three years. The patients' pre-dialysis mean forced vital capacity (FVC) and forced expiratory volume in 1 second (FEV1) were below normal: 45.8 ± 24.9% and 43.5 ± 25.9% of predicted, respectively. After hemodialysis, these increased significantly, to 51.1 ± 23.4% and 49.3 ± 25.5% of predicted, respectively (P < 0.01). The increase in mean FEV1/FVC, from 97.8 ± 20.8% to 99.3 ± 20.1% of predicted, was not significant (P > 0.05). The pre-dialysis mean forced expiratory flow 25-75% was 50.1 ± 31% and increased significantly, to 56.3 ± 31.6% of predicted (P < 0.05). The mean peak expiratory flow was below normal (43.8 ± 30.7%) and increased significantly, to 49.1 ± 29.9% of predicted (P < 0.05). Males and females showed similar directions of change after hemodialysis. CONCLUSIONS: Pulmonary function abnormalities are common among ESRD patients. Comparison of pre and post-hemodialysis parameters showed significant improvements, but normal predicted values were still not achieved.

Ventilação mecânica variável / Variable mechanical ventilation

RESUMO Objetivo: Revisar a literatura em relação à utilização da ventilação variável e aos principais desfechos relacionados à sua utilização. Métodos: Busca, seleção e análise de todos os artigos originais sobre ventilação variável, sem restrição quanto ao período de publicação e ao idioma, nas bases de dados eletrônicas LILACS, MEDLINE® e PubMed, encontrados por meio de busca pelos termos "variable ventilation" OR "noisy ventilation" OR "biologically variable ventilation". Resultados: Foram selecionados 36 artigos na busca. Após a análise, 24 artigos eram originais; destes 21 experimentais e 3 clínicos. Conclusão: Diversos estudos experimentais evidenciaram os efeitos benéficos de variadas estratégias ventilatórias variáveis sobre a função pulmonar em diferentes modelos de lesão pulmonar e em pulmões saudáveis. A ventilação variável parece ser uma estratégia viável para o aprimoramento da troca gasosa e mecânica respiratória, assim como para prevenção de lesão pulmonar associada à ventilação mecânica. Entretanto, estudos clínicos são necessários para investigar o potencial destas estratégias ventilatórias variáveis na melhora clínica dos pacientes submetidos à ventilação mecânica.

ABSTRACT Objective: To review the literature on the use of variable mechanical ventilation and the main outcomes of this technique. Methods: Search, selection, and analysis of all original articles on variable ventilation, without restriction on the period of publication and language, available in the electronic databases LILACS, MEDLINE®, and PubMed, by searching the terms "variable ventilation" OR "noisy ventilation" OR "biologically variable ventilation". Results: A total of 36 studies were selected. Of these, 24 were original studies, including 21 experimental studies and three clinical studies. Conclusion: Several experimental studies reported the beneficial effects of distinct variable ventilation strategies on lung function using different models of lung injury and healthy lungs. Variable ventilation seems to be a viable strategy for improving gas exchange and respiratory mechanics and preventing lung injury associated with mechanical ventilation. However, further clinical studies are necessary to assess the potential of variable ventilation strategies for the clinical improvement of patients undergoing mechanical ventilation.

Hemorragia alveolar difusa, desafío diagnóstico y terapéutico / Diffuse alveolar hemorrhage: a diagnostic and therapeutic challenge

Diffuse alveolar hemorrhage is a syndrome causing catastrophic respiratory failure, secondary to pathophysiological processes within the natural history of a variety of diseases and clinical conditions. Should be considered a medical emergency due to the significant morbidity and mortality associated. It represents a diagnostic challenge because symptoms and signs are often nonspecific. It requires a highlevel of suspicion to early recognition, essential step towards the establishment of supportive measures and specific therapy for survival.

La hemorragia alveolar difusa es un síndrome causante de falla respiratoria catastrófica, secundario a los procesos fisiopatológicos presentes en la historia natural de varias enfermedades y condiciones clínicas. Debe considerarse como una emergencia médica debido a la significativa morbi-mortalidad asociada. Representa un desafío diagnóstico ya que a menudo los síntomas y signos son inespecíficos, requiere un alto nivel de sospecha para el reconocimiento precoz, paso esencial para la instauración de medidas de soporte vital y terapia específica requerida para la sobrevida.

Cánula nasal de alto flujo en lactantes: experiencia en una unidad de paciente crítico / High flow nasal cannula in infants: Experience in a critical patient unit

Introducción: La cánula nasal de alto flujo (CNAF) es un método de soporte respiratorio cada vez más utilizado en pediatría por sus resultados y seguridad. Objetivo: Determinar la efectividad de la CNAF, evaluar factores asociados a fracaso y complicaciones relacionadas con su uso en lactantes. Pacientes y método: Se analizaron los datos demográficos, clínicos, gasométricos, radiológicos y complicaciones de los pacientes conectados a CNAF en una unidad crítica entre junio de 2012 y septiembre de 2014. Se compararon los pacientes que fracasaron con los respondedores a CNAF, considerándose fracaso la necesidad de un mayor soporte respiratorio durante las primeras 48 h de conexión. Se utilizó test de Kolmogorov Smirnov, U de Mann-Whitney, Chi cuadrado, test exacto de Fisher, correlaciones y Modelo de regresión logística binaria para p ≤ 0,05. Resultados: Un total de 109 pacientes. Mediana de edad y peso: 1 mes (0,2-20 meses) y 3,7 kg (2-10 kg); percentil 95: 3,7 meses y 5,7 kg respectivamente. El diagnóstico y patrón radiológico más frecuente fue bronquiolitis (53,2%) e infiltrado intersticial (56%). Un 70,6% respondió. Hubo diferencia significativa entre fracaso y respuesta en el diagnóstico (p = 0,013), radiografía (p = 0,018), contexto de conexión (p < 0,0001), pCO2 (mediana 40,7 mm Hg [15,4-67 mm Hg] versus 47,3 mm Hg [28,6-71,3 mm Hg], p = 0,004) y horas de CNAF (mediana 60,75 h [5-621,5 h] versus 10,5 h [1-29 h], p < 0,0001). El OR de PCO2 ≥ 55 mm Hg para fracaso fue 2,97 (IC 95%: 1,08-8,17; p = 0,035). Ningún paciente falleció ni registró complicaciones. Conclusión: El porcentaje de éxito observado fue similar a lo publicado. En esta muestra el fracaso de CNAF solo se asoció a una pCO2 inicial ≥ 55 mm Hg. Su uso se consideró seguro al no reportarse complicaciones relacionadas a su utilización. Se requiere de un estudio multicéntrico, aleatorizado y controlado para contrastar estos resultados.

Introduction: The high flow nasal cannula (HFNC) is a method of respiratory support that is increasingly being used in paediatrics due to its results and safety. Objective: To determine the efficacy of HFNC, as well as to evaluate the factors related to its failure and complications associated with its use in infants. Patients and method: An analysis was performed on the demographic, clinical, blood gas, and radiological data, as well as the complications of patients connected to a HFNC in a critical care unit between June 2012 and September 2014. A comparison was made between the patients who failed and those who responded to HFNC. A failure was considered as the need for further respiratory support during the first 48 hours of connection. The Kolmogorov Smirnov, Mann-Whitney U, chi squared and the Exact Fisher test were used, as well as correlations and a binary logistic regression model for P ≤ .05. Results: The study included 109 patients, with a median age and weight: 1 month (0.2-20 months) and 3.7 kg (2-10 kg); 95 percentile: 3.7 months and 5.7 kg, respectively. The most frequent diagnosis and radiological pattern was bronchiolitis (53.2%) and interstitial infiltration (56%). Around 70.6% responded. There was a significant difference between failure and response in the diagnosis (P = .013), radiography (P = 018), connection context (P < .0001), pCO2 (median 40.7 mmHg [15.4-67 mmHg] versus 47.3 mmHg [28.6-71.3 mmHg], P = .004) and hours on HFNC (median 60.75 hrs [5-621.5 hrs] versus 10.5 hrs [1-29 hrs], P < .0001). The OR of the PCO2 ≥ 55 mmHg for failure was 2.97 (95% CI; 1.08-8.17; P = .035). No patient died and no complications were recorded. Conclusion: The percentage success observed was similar to that published. In this sample, the failure of HFNC was only associated with an initial pCO2 ≥ 55 mmHg. On there being no complications reported as regards it use, it is considered safe, although a randomised, controlled, multicentre study is required to compare and contrast these results.

Manifestations pleuro-pulmonaires au cours des connectivites chez les sujets ouest-africains dans un pays à ressources limitées

Objectif : Déterminer les caractéristiques épidémiologiques et cliniques des atteintes pleuro-pulmonaires au cours des connectivites dans l'unité de rhumatologie du CNHU-HKM.Patients et méthodes : Il s'agit d'une étude rétrospective à visée descriptive portant sur des dossiers des patients vus l'unité de rhumatologie dans la période de janvier 2000 à Mars 2013. Dans un premier temps, les dossiers des patients ayant souffert d'une connectivite ont été recensés. Le diagnostic de connectivite a été retenu selon les différents critères diagnostiques TANIMOTO 1995 pour la Dermatopolymyosite (DPM), ACR 1987 pour la Polyarthrite Rhumatoïde (PR), ACR 1997 pour le lupus érythémateux systémique (LES), ACR 1989 pour la sclérodermie, Communauté Européenne 1993 pour le Goujerot-Sjögren, SHARP pour les connectivites mixtes. Dans un deuxième temps, les dossiers des patients ayant souffert de manifestations pleuro-pulmonaires ont été dépouillés. Le diagnostic d'atteinte pulmonaire a été posé sur des arguments clinique, radiologique et/ou après un test thérapeutique. Les données recueillies ont été analysées grâce au logiciel épi info 6.0.Résultats : Sur 9785 patients vus dans l'unité de rhumatologie, 127 cas (1,3%) de connectivites ont été diagnostiqués. Il s'agissait de 99 béninois, 13 nigérians, 5 togolais, 4 ivoiriens, 3 maliennes, 2 burkinabés et une sénégalaise. La sex-ratio était de 0,17. L'âge moyen des patients était de 35,2± 5,2 [18-71] ans. Dix-sept (17) patients ont présenté des manifestations pleuro-pulmonaires. Elles étaient associées à d'autres atteintes séreuses (péricarde et péritoine) dans 6 cas. La toux était présente chez tous les patients. Elle était sèche dans n=14 cas et associée à une dyspnée dans n=5 cas. Les manifestations se présentaient comme suit : pleurésies rattachées au LES et à la PR (n=3 cas chacun), toxicité pulmonaire probablement liée au méthotrexate confirmée par l'arrêt du traitement de fond (n=5), broncho-pneumopathies infectieuses (n=4) et la fibrose pulmonaire en rapport avec la PR (n=2). L'évolution sous traitement (corticothérapie seule ou associée à un traitement de fond) a été favorable chez 14 patients, stationnaire chez 2 patients. Un cas de décès a été noté. Conclusion : Les atteintes pleuro-pulmonaires occupent une place non négligeable parmi les complications liées aux connectivites. La corticothérapie et le traitement de fond par les DMARDs ne sont pas non plus dénudés de complications pulmonaires. La mise en place d'une équipe pluridisciplinaire s'impose pour le dépistage précoce et la prise en charge de ces complications

Nanomedicine and therapy of lung diseases / Nanomedicina e terapia de doenças pulmonares

The use of nanotechnology has significantly increased in different fields of science, including the development of drug delivery systems. Currently, the most modern pharmaceutical nanocarriers, such as liposomes, micelles, nanoemulsions and polymeric nanoparticles, demonstrate extremely useful properties from the point of view of drug therapy. In this context, the development of nanocarriers for pulmonary application has been much debated by the scientific community in recent decades. Although research on the use of nanoparticles for pulmonary application are still in the initial phase, the studies conducted to date suggest that the development of drug delivery systems for systemic or local treatment of diseases that affect the respiratory system may be promising.

O uso da nanotecnologia tem aumentado significativamente em diversas áreas da ciência. Entre elas, está o desenvolvimento de sistemas de liberação de medicamentos. Atualmente, os nanocarreadores farmacêuticos mais modernos, como os lipossomas, as micelas, as nanoemulsões e as nanopartículas poliméricas, demonstram propriedades extremamente úteis do ponto de vista farmacoterápico. Nesse contexto, o desenvolvimento de nanocarreadores para aplicação pulmonar tem sido um tema amplamente debatido pela comunidade científica nas últimas décadas. Embora as pesquisas sobre o uso de nanopartículas para aplicação pulmonar ainda estejam em fase inicial, estudos realizados até hoje sugerem que o delineamento de sistemas de liberação de medicamentos para o tratamento sistêmico ou local de doenças que afetam o sistema respiratório, pode ser promissor no desenvolvimento de novas terapias de doenças pulmonares.

Malformaciones pulmonares congénitas / Congenital lung malformations

Congenital lung malformations (CLM) comprise a heterogeneous group of lung diseases. They vary widely in their clinical presentation and severity, depending on the degree of lung involvement and their location in the thoracic cavity. They can manifest at any age and can be the source of significant morbidity and mortality in infants and children. Patients with CLM can present respiratory symptoms at birth or can remain asymptomatic for long periods. There has been an increase in early diagnosis of CLM attributable to the routine use of prenatal ultrasound. Management of these lesions depends on the type of malformation and symptoms. Treatment of asymptomatic patients is controversial, because the prognosis of these diseases is unpredictable. Because of the risk of complications, most authors recommend resection of the lesion at the time of diagnosis. This review describes the principal CLM, their diagnosis, and the controversies regarding treatment.

Las malformaciones pulmonares congénitas (MPC) constituyen un grupo heterogéneo de enfermedades. Varían en su presentación clínica y gravedad en función al grado de afectación pulmonar y a su ubicación en tórax. Se pueden manifestar a cualquier edad y pueden condicionar morbilidad y mortalidad significativa en lactantes y niños. Los pacientes pueden presentar síntomas respiratorios desde el nacimiento o permanecer asintomáticos durante largos períodos. Se ha observado un aumento en el diagnóstico precoz de las MPC atribuible al uso rutinario de la ecografía prenatal. El manejo de estas lesiones depende del tipo de malformación y de los síntomas. El tratamiento de pacientes asintomáticos es controvertido debido a que el pronóstico de estas enfermedades es desconocido. La mayoría de los autores recomiendan la resección de la lesión en el momento del diagnóstico debido al riesgo de complicaciones. Esta revisión describe las principales malformaciones congénitas del pulmón, su diagnóstico y las estrategias de tratamiento.

Interação entre pneumologista e cirurgião torácico / Interaction between pulmonologist and thoracic surgeon

Médicos clínicos e cirurgiões escolhem as suas áreas de atuação de acordo com perfil psicológico predominante de cada um. Enquanto os cirurgiões tendem a ser mais práticos e objetivos, os clínicos geralmente apresentam mais liberdade de ação e senso de oportunidade. No entanto, o terreno de atuação desses dois profissionais não é perfeitamente delimitado. No caso da pneumologia e cirurgia torácica existem várias situações que apresentam campo para atuação dos dois profissionais, como nos casos de metástases pulmonares, derrames pleurais, nódulos pulmonares, biópsia e transplante de pulmão. Embora não haja uma definição clara do papel de cada ator, a interação dos dois profissionais traz enormes benefícios na condução dos casos.

Extracorporeal membrane oxygenation as a support for TGA/IVS with low cardiac output syndrome and pulmonary hemorrhage / Oxigenação extracorpórea por membrana como suporte para TGA/IVS com síndrome de baixo débito e hemorragia pulmonar

A 15-day-old neonate with complete transposition of the great arteries/intact ventricular septum was admitted with life-threatening hypoxemia and heart arrest. After successful resuscitation, heart beat recovered but blood lactate began to arise and maintained above 15 mmol/L 6 hours later. Emergency arterial switch operation was done at 20 hours after resuscitation. Planned extracorporeal membrane oxygenation support was employed postoperatively. The baby experienced severe pulmonary hemorrhage and severe hypoxemia after weaning from cardiopulmonary bypass, which were treated with extracorporeal membrane oxygenation support.

Um recém-nascido de 15 dias de idade, com transposição completa das grandes artérias/septo ventricular intacto, foi internado com hipoxemia com risco de vida e parada cardíaca. Após a reanimação bem sucedida, o coração voltou a bater, mas o lactato elevou-se e manteve-se acima de 15 mmol/L, 6 horas após. Operação de emergência para correção da transposição das grandes artérias foi realizada 20 horas após a ressuscitação. Suporte de oxigenação por membrana extracorpórea foi empregado no pós-operatório. O bebê apresentou hemorragia pulmonar e hipoxemia graves após desconexão da circulação extracorpórea, que foram tratadas com suporte da xigenação por membrana extracorpórea.

Pulmonary renal syndrome in a case of wegener´s granulomatosis.

We report a case of a 42-year-old patient who presented with Wegener’s granulomatosis complicated by pulmonary renal syndrome, i.e., diffuse alveolar haemorrhage and rapidly progressive crescentic glomerulonephritis. The patient was treated with plasmapheresis and immunosuppressive drugs — intravenous cyclophosphamide and methyl prednisolone. The clinical, haematological and biochemical parameters improved substantially and remission is achieved.

Incidence, indication and complications of postoperative reintubation after elective intracranial surgery / Incidencia, indicacao e complicacoes da reintubacao no pos-operatorio de cirurgia eletiva intracraniana

CONTEXT AND OBJECTIVE There are no reports on reintubation incidence and its causes and consequences during the postoperative period following elective intracranial surgery. The objective here was to evaluate the incidence of reintubation and its causes and complications in this situation. DESIGN AND SETTING Prospective cohort study, using data obtained at a tertiary university hospital between 2003 and 2006. METHODS 169 patients who underwent elective intracranial surgery were studied. Preoperative assessment was performed and the patients were followed up until hospital discharge or death. The rate of reintubation with its causes and complications was ascertained. RESULTS The incidence of reintubation was 12.4%, and the principal cause was lowered level of consciousness (71.5%). There was greater incidence of reintubation among females (P = 0.028), and greater occurrence of altered level of consciousness at the time of extubation (P < 0.0001). Reintubated patients presented longer duration of mechanical ventilation (P < 0.0001), longer stays in the intensive care unit (ICU) and in the hospital (P < 0.0001), greater incidence of pulmonary complications (P < 0.0001), greater need for reoperation and tracheostomy, and higher mortality (P < 0.0001). CONCLUSION The incidence of reintubation in these patients was 12.4%. The main cause was lowering of the level of consciousness. Female gender and altered level of consciousness at the time of extubation correlated with higher incidence of reintubation. Reintubation was associated with pulmonary complications, longer durations of mechanical ventilation, hospitalization and stay in the ICU, greater incidence of tracheostomy and mortality. .

CONTEXTO E OBJETIVO Não há relatos sobre incidência de reintubação, suas causas e consequências no pós-operatório de cirurgia intracraniana eletiva. O objetivo foi avaliar a incidência de reintubação, suas causas e complicações em pós-operatório de cirurgia intracraniana eletiva. TIPO DE ESTUDO E LOCAL Estudo de coorte prospectivo, com dados que foram obtidos de 2003 a 2006 em um hospital universitário terciário. MÉTODO 169 pacientes submetidos a cirurgia intracraniana eletiva foram estudados. Foi realizada avaliação pré-operatória e os pacientes foram acompanhados até a alta hospitalar ou óbito, verificando a taxa de reintubação, suas causas e complicações. RESULTADOS A incidência de reintubação foi de 12,4% sendo a principal causa o rebaixamento do nível de consciência (71,5%). Houve maior incidência de reintubação no sexo feminino (P = 0,028), bem como do nível de consciência alterado no momento da extubação (P < 0,0001). Pacientes reintubados apresentaram maior tempo de ventilação mecânica (P < 0,0001) e de internação em unidade de terapia intensiva (UTI) e hospitalar (P < 0,0001), maior incidência de complicações pulmonares (P < 0,0001), maior necessidade de reoperação e traqueostomia, além de aumento de mortalidade (P < 0,0001). CONCLUSÃO A incidência de reintubação nesses pacientes foi de 12,4%. A principal causa da reintubação foi o rebaixamento do nível de consciência. O sexo feminino e nível de consciência alterado no momento da extubação foram relacionados à maior incidência ...

Oxigenación por membrana extracorpórea y plasmaféresis en un paciente con hemorragia pulmonar grave secundaria a poliarteritis nodosa / Extracorporeal membrane oxygenation and plasmapheresis in the treatment of severe pulmonary hemorrhage secondary to nodose polyarteritis

Se comunica el caso de un paciente de 23 meses de edad, con hemorragia pulmonar, hipoxemia refractaria, hipertensión arterial y falla renal secundarias a poliarteritis nodosa (PN) que ha requerido asistencia simultánea con soporte cardiopulmonar extracorpóreo (ECMO), plasmaféresis, hemodiafiltración y surfactante exógeno. La PN es una vasculitis autoinmunitaria que afecta los vasos arteriales de pequeño y mediano calibres. La hipoxemia, refractaria al tratamiento con ventilación mecánica convencional y de alta frecuencia oscilatoria, fue sostenida con ECMO mientras se controló la enfermedad autoinmunitaria mediante plasmaféresis y tratamiento inmunosupresor. La combinación de ECMO con plasmaféresis es infrecuente, pero ha sido descripta en relación al trasplante de órganos, intoxicaciones, fallo cardíaco y sepsis. Existen dos casos descriptos en la bibliografía sobre el uso combinado de estas terapéuticas para el tratamiento de hemorragia pulmonar secundaria a vasculitis autoinmunitaria en niños.

We report to simultaneous use of extracorporeal life support (ECLS), plasmapheresis, hemodiafiltration and exogenous surfactant for the treatment of pulmonary hemorrhage, arterial hypertension, and renal failure secondary to nodose polyarteritis (NPA) in a 23-month-old patient. NPA is an autoimmune disease that affects small -and medium- caliber muscular arteries. Hypoxemia refractory to treatment with conventional and high frequency oscillatory ventilation was supported by ECMO while awaiting control of the autoimmune disease through the use of plasmapheresis and immunosuppressive treatment. Although the combination of ECLS with plasmapheresis is rare, it has been described during the management of cases of organ transplant, intoxication, cardiac failure, and sepsis. There are only two previous reports describing the use of this combined therapy for the treatment of pulmonary hemorrhage secondary to autoimmune vasculitis in childhood.