Avaliação da ultraestrutura e do movimento ciliar em crianças com pneumopatias crônicas e de repetição se diagnóstico definido / Evaluation of the ultrastructure and of the movement of cilia in children with chronic and repetition pneumopathies without a defined diagnosis

INTRODUÇÃO: A discinesia ciliar primária é uma doença genética que se caracteriza pela alteração da ultraestrutura e função do cílio móvel, com consequentes alterações do transporte mucociliar, causando infecções das vias aéreas superiores, inferiores e infertilidade. O diagnóstico, realizado por avaliação da ultraestrutura ou pesquisa de mutação genética, é feito mediante critérios de seleção de pacientes e testes de screening. Esta pesquisa avalia a ultraestrutura e frequência de batimento ciliar, propõe um modelo de investigação de discinesia ciliar primária, e caracteriza os pacientes diagnosticados. MÉTODO: Foi realizado um estudo transversal controlado entre janeiro de 2007 e julho de 2009, no Ambulatório de Pneumologia Pediátrica do Instituto da Criança. Foram selecionadas 28 crianças e adolescentes (6 meses a 19 anos, de ambos os sexos), de uma população de 75 crianças com pneumopatias crônicas e de repetição sem diagnóstico definido, que apresentavam ao menos um dos seguintes achados: bronquiectasia de causa desconhecida, doença de vias aéreas superiores com sintomatologia crônica, infecções pulmonares de repetição, dextrocardia e/ou situs inversus acompanhados de sintomas em vias aéreas superiores e/ou inferiores, e asma de difícil controle com sintomas em vias aéreas superiores e/ou inferiores. A presença de pneumopatias crônicas com diagnóstico definido foi utilizada como critério de exclusão por meio dos seguintes exames: dois testes do suor (exclusão de fibrose cística), tomografia computadorizada do tórax (suspeita de bronquiolite obliterante), dosagem de alfa-1 antitripsina (investigação de déficit de alfa-1 antitripsina), e exames de investigação das imunodeficiências mais frequentes (hemograma, dosagens de imunoglobulinas, contagem de linfócitos T e B, sorologias para avaliação da produção ativa de anticorpos, PPD e HIV). Foi desenvolvido um sistema medição da frequência de batimento ciliar, baseado em análise espectral. Dez adultos...

INTRODUCTION: Primary ciliary dyskinesia (PCD) is a genetic disorder of the ultrastructure and function of mobile cilia, with consequent impairment of mucociliary clearance, leading to upper and lower airways respiratory infection and infertility. The diagnosis, based on ultrastructure evaluation or genetic scan, is performed according to patient selection and screening tests. This research evaluates cilia ultrastructure and beat frequency, proposes a model for investigating primary ciliary dyskinesia, and characterizes the patients diagnosed.METHOD: A controlled and observational study was carried out at the Pediatric Pulmonology Ambulatory of the Instituto da Criança between January 2007 and July 2009. Twenty eight children and teenagers (ages between 6 months and 19 years) were selected, from a population of 75 patients with chronic and repetition pneumopathies without a defined diagnosis, which met at least one of the following inclusion criteria: bronchiectasis of unknown cause, upper respiratory disease with chronic symptoms, repetition pulmonary infections, dextrocardia and/or situs inversus with symptoms in upper and/or lower respiratory airways, and asthma of difficult control with symptoms in upper and/or lower respiratory airways. The presence of cronic pneumopathies with a defined diagnosis was used as exclusion criterion, based on the following exams: two sweat tests (cystic fibrosis exclusion), lung CT scan (bronchiolitis obliterans exclusion), seric levels of alpha-1 anti-trypsin (alpha-1 anti-trypsin deficit evaluation), and evaluation of more frequent immunodeficiency disorders (white blood cells, T and B lymphocytes levels, and sorology tests for humoral immunity, PPD and HIV). A cilia beat frequency measurement system was developed, based on spectral analysis. Ten healthy adult volunteers (ages greater than or equal to 17 years old, of both sexes), without an acute respiratory...

Multiple lung abscesses in a patient with kartagener's syndrome

Kartagener's syndrome is a rare genetic disorder, which is mostly inherited as an autosomal recessive trait. There are 4 genes with a proven pathogenetic role in Kartagener's syndrome. It results from ciliary dysfunction and is commonly characterized by sinusitis, male infertility, hydrocephalus, and situs inversus. Since Kartagener's syndrome causes deficiency or even stasis of the transport of secretions throughout the respiratory tract, it favors the growth of viruses and bacteria. As a result, patients have lifelong chronic and recurrent infections, typically suffering from bronchitis, pneumonia, hemoptysis, sinusitis, and infertility. We present a 27-year-old woman, a case of Kartagene's syndrome, with multiple pulmonary abscesses. Evaluation of sputum and tracheal secretions revealed Pseudomonas aeroginosa. Antibiotics were started and respiratory symptoms resolved and the patient was discharged in good general condition. As a conclusion, prompt and appropriate treatment of respiratory infections can minimize irreversible lung damage in such cases

Caso clínico: síndrome de Kartagener / Kartagener syndrome: case report / La síndrome de Kartagener: relato de caso

Objetivo: descrever um caso da síndrome de Kartagener e alertar os pediatras para o diagnóstico da discinesia ciliar primária. Relato do caso:paciente de 17 anos, sexo feminino, que apresentava desde o primeiro ano de vida, tosse, secreção nasal, otorréia, sibilância e 15 episódios de pneumonia. Os exames de imagem mostraramsinusopatia maxilar bilateral, situs inversus totalis, bronquiectasias nas bases pulmonares, áreas de condensação e bronquiolectasias difusas com aspecto de “árvore em brotamento”. A espirometria mostrou distúrbio obstrutivo leve, sem resposta a broncodilatador. As duas dosagensde cloro no suor e as imunoglobulinas séricas foram normais. O teste de triagem para avaliação do transporte mucociliar (teste da sacarina)teve resultado alterado (40 min), caracterizando a discinesia ciliar. Com base nesse resultado, a presença de situs inversus, bronquiectasias e sinusopatia crônica, foi estabelecido o diagnóstico da síndrome de Kartagener. Conclusão: a suspeita de discinesia ciliar é facilitada quando ocorre o situs inversus, o que caracteriza a síndrome de Kartagener. Porém, deve-se atentar para o fato de que a maioria dos casos de discinesia ciliar não têm essa má formação associada.

Objective: to describe a case of Kartagener syndrome and alert pediatricians for the diagnosis of primary ciliary dyskinesia. Case report:a 17 year-old patient, female, presented since her first year of life cough, nasal secretion, otorrhea, sibilance and 15 episodes of pneumonia. Image exams have shown bilateral maxillary sinusopathy, situs inversus totalis, bronchiectasis at pulmonary bases, condensation areas and diffuse bronchiolectasis with “sprouting tree”aspect. The spirometry shown a light obstructive disorder without response to bronchodilator. Two chlorine exams in the sweat and the seric immunoglobulin were normal. The test to evaluatethe mucociliary transport (saccharin test) had altered result (40 minutes), characterizing the ciliary dyskinesia. Based on this result, and the presence of situs inversus, bronchiectasis and chronic sinusopathy, the diagnosis of Kartagener syndrome was established. Conclusion: the suspicion of ciliary dyskinesia is easier when a situs inversus, is found, which characterizes the Kartagener syndrome. However, it shall be no ticed that most of the ciliary dyskinesia cases does not present this malformation associated.

Objetivo: discrebir un caso síndrome de Kartagener y alertar los pediatras para el diagnostico de discinesia ciliar primaria. Relato del caso: una paciente de 17 años, presentaba desde el primeraño de vida toss, secreción nasal, otorrea, sibilancia em el pecho, con histórico de 15 episodios de neumonia. Los exames auxiliares de imagen mostaran sinusitis maxilar bilateral, situs inversus totalis, bronquiectasias nas bases pulmonares,áreas de condensación y ronquiectasias difusas, com aspecto de arbol en brote. La espirometria mostro distúrbio obstrutivo pequeño sin respuestaa lo broncodilatador. Los niveles de cloro en el suor y de las inmunoglobulinas sericas fuerannormales. Lo testigo de triage para evaluar el transporte mucociliar con sacarina tubo resultado alterado (40 minutos), caracterizando el diagnosticode síndrome de Kartagener. Conclusión: la sospecha de discinesia ciliar es facilitada cuando hay el situs inversus, que es caracteristico de la síndrome de Kartagener. Pero, es necessário atentara que circa de la mitad de los casos de discinesia ciliar non tiene esta ma-formación.

Síndrome de Kartagener / Kartagener's syndrome

A síndrome de Kartagener consiste em uma tríade de sintomas, determinada geneticamente, afetando a atividade de proteínas importantes ao movimento ciliar, sobretudo no trato respiratório e espermatozóides. Trata-se de uma patologia pouco comum, responsável pelo aumento na sucetibilidade dos pacientes às infecçoes respiratórias. Os autores apresentam um relato de caso, em paciente pediátrico, e fazem uma breve revisao bibliográfica, dando ênfase aos aspectos anatomopatológicos da doença.

Ultrastructural defects of the ciliary epithelium in a child with Kartagener's syndrome.

Kartagener's syndrome is a well known classical triad of presentations consisting of bronchiectasis, sinusitis and situs inversus. It is now recognized that the syndrome is an extreme presentation of primary ciliary dyskinesia, a large group of conditions with ultrastructural ciliary defects, leading to poor ciliary motility in various organ systems. A case of Kartagener's syndrome is presented in an eight year old Thai boy in whom the ultrastructural ciliary defects have been examined and described in detail for the first time in Thailand. Incomplete lack of dynein arms was recognized. In addition, disorientation of ciliary axis was noticed. Due to severe bronchiectatic changes of the right lower lobe and right lingular lobe which did not improve despite adequate antibiotics, these lobes were surgically removed. The child has done well since, but still suffers occasional and recurrent bouts of sinusitis.

Kartagener syndrome with azoospermia

Kartagener syndrome is characterized by bronchiectasis, Sinusitis and dextrocardia, leading to repeated respiratory infections and infertility. Infertility in Kartagener syndrome is caused by immotile cilia and not the absence of sperms. A case of kartagener syndrome is presented, where the disease was accompanied by Azoospermia