Caso Clínico: Discinesia Ciliar Primaria (Síndrome de Kartagener) / Clinical Case Report: Primary Ciliary Dyskinesia (Kartagener's Syndrom

INTRODUCCIÓN: La discinesia ciliar primaria es un trastorno hereditario autosómico recesivo, que afecta la función de las células ciliadas y se caracteriza por infecciones respiratorias a repetición y afecta tanto al tracto respiratorio superior e inferior, puede asociarse con trastornos de la lateralidad orgánica (síndrome de Kartagener), infertilidad y en algunos casos malformaciones. No existe un tratamiento específico; sin embargo, se tratan las infecciones agudas y se realiza seguimiento de la función pulmonar como en el caso clínico que se presenta a continuación. CASO CLÍNICO: Se trata de una mujer de 28 años, con antecedentes de dextrocardia, sinusitis, otitis, bronquitis y neumonías a repetición, asmática, con rinorrea mucoide crónica, que acudió por cuadro persistente de tos productiva y disnea de moderados esfuerzos. Al examen físico destacó: saturación de 80% con FIO2: 21%, cianosis discreta, ruidos cardiacos audibles en hemitórax derecho con reforzamiento del segundo ruido, estertores difusos y frémito aumentado. En la espirometría se detectó patrón obstructivo ­ restrictivo severo, la tomografía demostró la presencia de sinusitis maxilar y esfenoidal, dextrocardia, bronquiectasias e infiltrados difusos, poliesplenia, hepatomegalia e hígado en herradura. Se diagnosticó de síndrome de Kartagener (por dextrocardia, sinusitis y bronquiectasias). EVOLUCIÓN: Durante la estancia hospitalaria la paciente permaneció sin requerimientos de oxígeno suplementario y afebril. Recibió tratamiento antibiótico, corticoides inhalatorios y salbutamol. Se explicó a la paciente y sus familiares la benignidad de la enfermedad y el requerimiento de controles rigurosos por consulta externa. El diagnóstico definitivo por microscopía electrónica no fue realizado por falta de recursos a nivel local. CONCLUSIÓN: La discinesia ciliar primaria por lo general tiene un curso evolutivo de carácter benigno, al ser una enfermedad poco conocida su diagnóstico es tardío. La discinesia ciliar primaria debe ser considera dentro de los diagnósticos diferenciales de un paciente que presenta infecciones respiratorias a repetición.(au)

BACKGROUND: Primary ciliary dyskinesia is an inherited autosomal recessive disorder, which affects the function of ciliated cells and is characterized by recurrent upper and lower respiratory infections. It may be associated with organic laterality disorders (Kartagener syndrome), infertility and in some cases malformations. There is no specific treatment; however, acute infections management and pulmonary function surveillance is recommended, as presented in the case report. CASE REPORT: 28-year-old woman with a history of dextrocardia, sinusitis, otitis, bronchitis and recurrent pneumonia, asthmatic, with chronic mucoid rhinorrhea and recurrent episodes of productive cough and dyspnea. Physical examination revealed an oxygen saturation of 80% at room air, discrete cyanosis, and audible cardiac sounds in the right hemithorax with reinforcement of the second noise, diffuse rales and increased thrill. Pulmonary function test was positive for a severe obstructive - restrictive pattern, computed tomography revealed the presence of maxillary and sphenoid sinusitis, dextrocardia, bronchiectasis, polysplenia hepatomegaly and horseshoe liver. The diagnosis of Kartagener syndrome was made (due to dextrocardia, sinusitis and bronchiectasis). EVOLUTION: During the hospital stay the patient remained without oxygen requirements, she received antibiotic treatment plus corticosteroids and salbutamol. Patient education was carried out, indicating the benignity of the disease and the requirement of close monitoring. Definitive diagnosis by electron microscopy was not available. CONCLUSION: Primary ciliary dyskinesia usually has a benign course of evolution; being an uncommon disease, diagnosis is usually late. Primary ciliary dyskinesia should be considered within the differential diagnosis of patients with recurrent respiratory infection(au)

Primary ciliary dyskinesia with HYDIN gene mutations in a child and literature review / 中华儿科杂志

Objective@#To review children′s primary ciliary dyskinesia (PCD) in the pathogenesis, clinical manifestation, diagnosis and treatment.@*Method@#To summarize and analyze the clinical data of a patient who was admitted to the first affiliated hospital of Xiamen University with primary ciliary dyskinesia in April 2014 while referring to related literature.@*Result@#An 11 years old boy, weighting about 22 kg, had a course of more than 10 years with repeated cough, stuffy and runny nose shortly after the birth. Examinations after admission to hospital showed that he presented with visible clubbing, bilateral paranasal sinus area tenderness, pharynx posterior wall with visible yellow pussy stuff drip and bilateral lung had scattered wet rales. Auxiliary examination revealed bilateral maxillary sinus, ethmoid sinus inflammation and bronchitis with left lower lung bronchiectasis. Fiberoptic bronchoscopy discovered congestion and a lot of sputum; ciliary biopsy pathology displayed that cilia were sparse and partial cilia 9+ 2 microtubules structural abnormalities. Full sequence of exon gene sequencing revealed two mutations located at chromosome 16 chr16: 71061369 (non-coding regions) and chr16: 70993591 (coding). Two novel mutations m. 3362A>G(E20) and c. 6101G>A(E39) in exon 16 of the HYDIN gene were identified. With the" ciliary motility disorder, gene" as keywords , the CNKI, Wanfang digital knowledge service platform and PubMed were searched for relevant articles from the establishment to July 2016. The studies retrieved included 9 cases and these cases were summarized. Comprehensive analysis showed that HYDIN gene mutations related PCD patients had the typical PCD performance such as repeatedly wet cough, sinusitis, bronchiectasis, and otitis media. The majority of patients have a history of acute respiratory distress syndrome in infancy and no visceral dislocation was not found. Most of the patients had no obvious structural abnormalities in cilia electron microscopic examination.@*Conclusion@#The PCD patients with HYDIN genes mutations have clinical manifestations such as sinusitis, otitis media, bronchiectasis but without transposition of viscera. Cilia structure can be normal under the electron microscopic examination in some of patients.