Alternativa terapéutica para mejorar la calidad de vida en pacientes con fibrosis quística y discinesia ciliar primaria / Therapeutic alternative to improve quality of life in patients with cystic fibrosis and primary ciliary dyskinesia

Objective: To evaluate the clinical response of patients with cystic fibrosis and primary ciliary dyskinesia after endoscopic sinus surgery at the Dr. Robert Reid Cabral Children's Hospital from September 2021 to February 2022. Methods: An ambispective, cross-sectional, observational case series study was conducted, where the study population was made up of patients with cystic fibrosis and primary ciliary dyskinesia at the Dr. Robert Reid Cabral children's hospital during the study period. Inclusion criteria: Patients older than 6 years with a confirmed diagnosis of cystic fibrosis and primary ciliary dyskinesia (Genetic test with 2 homozygous mutations, positives electrolytes in sweat), severe respiratory symptoms of CRS that did not improve with conventional treatment and underwent endoscopic surgery for sinuses. Results: Of a total of 41 patients, only 10 met the inclusion criteria, the most prevalent age range was 14 to 18 years. Both CF and PCD patients decreased the frequency of CRS symptoms. After ENC, there were discrete changes in lung function, and only patients with severe to moderate disease increased % of FEV1. Most of the patients did not require admission after surgery. The most common germ found in nasopharyngeal and sputum cultures in preoperative patients was Pseudomonas aeruginosa in 86%; after ESS there was a significant increase in MRSA colonization in both CF and PCD patients. More than 50% of postoperative patients improved their quality of life, so endoscopic sinus surgery is effective in this population in the treatment of chronic rhinosinusitis.

Objetivo: Evaluar la respuesta clínica de los pacientes con fibrosis quística y discinesia ciliar primaria posterior a la cirugía endoscópica de senos paranasales en el Hospital Infantil Dr. Robert Reid Cabral en el período septiembre 2021 a febrero 2022. Métodos: Se realizó un estudio observacional tipo serie de casos, de corte transversal y ambispectivo, donde la población estudiada estuvo conformada por los pacientes con fibrosis quística y discinesia ciliar primaria del hospital infantil Dr. Robert Reid Cabral en el período de estudio. Criterios de inclusión: Pacientes mayores de 6 años con diagnóstico confirmado de fibrosis quística y discinesia ciliar primaria (Prueba genética con 2 mutaciones homocigotas, electrolitos en sudor positivos), síntomas respiratorios severos de RSC que no mejoraron con tratamiento convencional y sometidos a la cirugía endoscópica de senos paranasales. Resultados: De un total de 41 pacientes, sólo 10 cumplieron con los criterios de inclusión, el rango de edad más prevalente fue de 14 a 18 años. Tanto los pacientes con FQ como los de DCP disminuyeron la frecuencia de los síntomas de RSC. Posterior a la CEN hubo cambios discretos en la función pulmonar, y sólo los pacientes con enfermedad grave a moderada aumentaron el % de FEV1. La mayoría de los pacientes no ameritaron ingresos posterior a la cirugía. El germen más común encontrado en los cultivos nasofaríngeo y esputo en los pacientes preoperatorios fue la Pseudomonas aeruginosa en el 86%, luego de la CEN hubo un aumento significativo de la colonización por MRSA tanto en los pacientes con FQ como en los de DCP. Más del 50% de los pacientes postquirúrgicos mejoraron su calidad de vida, por lo que la cirugía endoscópica de senos paranasales es efectiva en dicha población en el tratamiento de la rinosinusitis crónica.

Outcomes of Endoscopic Sinus Surgery for Chronic Rhinosinusitis in Adults with Primary Ciliary Dyskinesia

Abstract Introduction Primary ciliary dyskinesia (PCD) is a rare inherited disease associated with impairment of mucociliary transport and, consequently, with a high incidence of chronic rhinosinusitis. For patients with chronic rhinosinusitis who remain symptomatic despite medical treatment, endoscopic sinus surgery is a safe and effective therapeutic option. However, to date, no studies have been found evaluating the effect of surgery on the quality of life associated with the effect on olfaction and nasal endoscopy findings of patients with primary ciliary dyskinesia and chronic rhinosinusitis. Objective To describe the effect of endoscopic sinus surgery on the quality of life, on olfaction, and on nasal endoscopy findings of adults with PCD and chronic rhinosinusitis. Methods Four patients who underwent endoscopic sinus surgery were included. The Sinonasal Outcome Test-22 (SNOT-22) score, the Nasal Obstruction Symptom Evaluation (NOSE) questionnaire, and the Lund-Kennedy score were collected preoperatively and at 3 and 6 months postoperatively. The olfaction as assessed with the University of Pennsylvania Smell Identification Test (UPSIT), which was administered preoperatively and 3 months postoperatively. Results A total of 4 patients with a mean age of 39.3 years old (3 men and 1 woman) completed the study. All patients showed clinically significant improvement in the SNOT-22, NOSE, and Lund-Kennedy scores at 3 months postoperatively, and this improvement was sustained throughout the follow-up period. However, olfaction did not improve after surgery. Conclusion The endoscopic sinus surgery treatment of chronic rhinosinusitis in adults with PCD was associated with improvement in quality of life and endoscopic findings. However, no improvement in olfaction was demonstrated. Studies with a larger number of patients and control groups should help confirm these findings.

Outcomes of Endoscopic Sinus Surgery for Chronic Rhinosinusitis in Adults with Primary Ciliary Dyskinesia.

Introduction Primary ciliary dyskinesia (PCD) is a rare inherited disease associated with impairment of mucociliary transport and, consequently, with a high incidence of chronic rhinosinusitis. For patients with chronic rhinosinusitis who remain symptomatic despite medical treatment, endoscopic sinus surgery is a safe and effective therapeutic option. However, to date, no studies have been found evaluating the effect of surgery on the quality of life associated with the effect on olfaction and nasal endoscopy findings of patients with primary ciliary dyskinesia and chronic rhinosinusitis. Objective To describe the effect of endoscopic sinus surgery on the quality of life, on olfaction, and on nasal endoscopy findings of adults with PCD and chronic rhinosinusitis. Methods Four patients who underwent endoscopic sinus surgery were included. The Sinonasal Outcome Test-22 (SNOT-22) score, the Nasal Obstruction Symptom Evaluation (NOSE) questionnaire, and the Lund-Kennedy score were collected preoperatively and at 3 and 6 months postoperatively. The olfaction as assessed with the University of Pennsylvania Smell Identification Test (UPSIT), which was administered preoperatively and 3 months postoperatively. Results A total of 4 patients with a mean age of 39.3 years old (3 men and 1 woman) completed the study. All patients showed clinically significant improvement in the SNOT-22, NOSE, and Lund-Kennedy scores at 3 months postoperatively, and this improvement was sustained throughout the follow-up period. However, olfaction did not improve after surgery. Conclusion The endoscopic sinus surgery treatment of chronic rhinosinusitis in adults with PCD was associated with improvement in quality of life and endoscopic findings. However, no improvement in olfaction was demonstrated. Studies with a larger number of patients and control groups should help confirm these findings.

Computed Tomography Evaluation of the Paranasal Sinuses in Adults with Primary Ciliary Dyskinesia

Abstract Introduction Primary ciliary dyskinesia is a rare inherited disease that results in a malfunction of mucociliary clearance and sinonasal complaints. Aplasia/hypoplasia of the frontal and sphenoid sinuses has been described as more frequent in this population. However, to date, no studies have provided a detailed description of computed tomography findings in adult patients with a diagnosis of this condition. Objective To describe the computed tomography (CT) findings of adult patients with primary ciliary dyskinesia. Methods Retrospective observational study of adult patients with primary ciliary dyskinesia who underwent CT. Results Twenty-one adults were included in the study. Aplasia occurred in 38.1% of frontal sinuses and in 14.3% of sphenoid sinuses. Likewise, hypoplasia occurred in 47.6% of the frontal sinuses, in 54.8% of the sphenoid sinuses and in 40.5% of the maxillary sinuses. Furthermore, trabecular loss was identified in 61.9% ethmoidal sinuses. The mean Lund-Mackay score was 13.5. In addition, 9.5% of the patients had concha bullosa, 47.6% had marked bilateral inferior turbinate hypertrophy, 38.1% had marked middle turbinate hypertrophy, and 47.6% had marked septal deviation. Finally, we identified images suggestive of fungus ball, mucocele, osteoma, a possible antrochoanal polyp, and frontal bone erosions. Conclusion The present study provides a detailed description of CT findings in patients with primary ciliary dyskinesia. We also describe abnormalities that must be identified for safer surgical planning and that suggest a diagnosis of primary ciliary dyskinesia if found in patients with a consistent clinical picture.

Deletions in DNAL1 Cause Primary Ciliary Dyskinesia Across North American Indigenous Populations.

We report 4 cases of primary ciliary dyskinesia in unrelated indigenous North American children caused by identical, homozygous, likely pathogenic deletions in the DNAL1 gene. These shared DNAL1 deletions among dispersed indigenous populations suggest that primary ciliary dyskinesia accounts for more lung disease with bronchiectasis than previously recognized in indigenous North Americans.

Computed Tomography Evaluation of the Paranasal Sinuses in Adults with Primary Ciliary Dyskinesia.

Introduction Primary ciliary dyskinesia is a rare inherited disease that results in a malfunction of mucociliary clearance and sinonasal complaints. Aplasia/hypoplasia of the frontal and sphenoid sinuses has been described as more frequent in this population. However, to date, no studies have provided a detailed description of computed tomography findings in adult patients with a diagnosis of this condition. Objective To describe the computed tomography (CT) findings of adult patients with primary ciliary dyskinesia. Methods Retrospective observational study of adult patients with primary ciliary dyskinesia who underwent CT. Results Twenty-one adults were included in the study. Aplasia occurred in 38.1% of frontal sinuses and in 14.3% of sphenoid sinuses. Likewise, hypoplasia occurred in 47.6% of the frontal sinuses, in 54.8% of the sphenoid sinuses and in 40.5% of the maxillary sinuses. Furthermore, trabecular loss was identified in 61.9% ethmoidal sinuses. The mean Lund-Mackay score was 13.5. In addition, 9.5% of the patients had concha bullosa, 47.6% had marked bilateral inferior turbinate hypertrophy, 38.1% had marked middle turbinate hypertrophy, and 47.6% had marked septal deviation. Finally, we identified images suggestive of fungus ball, mucocele, osteoma, a possible antrochoanal polyp, and frontal bone erosions. Conclusion The present study provides a detailed description of CT findings in patients with primary ciliary dyskinesia. We also describe abnormalities that must be identified for safer surgical planning and that suggest a diagnosis of primary ciliary dyskinesia if found in patients with a consistent clinical picture.

Nasal Nitric Oxide Levels: Improving the Diagnosis of Primary Ciliary Dyskinesia in Puerto Rico.

Primary Ciliary Dyskinesia (PCD) is a rare genetic disease characterized by motile cilia dysfunction with a prevalence of 1 in 16,309 individuals in Hispanic populations. In Puerto Rico, the prevalence of PCD is unknown. Diagnosis of PCD in Puerto Rico is challenging due to the lack of diagnostic technology. Algorithms for PCD diagnosis include clinical history, genetic testing, ciliary biopsy, and nasal Nitric Oxide (nNO) levels. For the first time, this study successfully implemented and measured the nNO levels in subjects with the RSPH4A (c.921+3_921+6del (intronic)) as a diagnostic tool to complement the current algorithm for PCD diagnosis on the island. The nNO level differentiated homozygous subjects with PCD due to the RSPH4A (c.921+3_921+6del (intronic)) founder mutation compared to healthy gender-age matched controls and subjects with VUS or negative genetic testing for PCD. The acquisition of state-of-the-art diagnostic tools such as nNO positively impacted and expanded our current PCD diagnostic capabilities in Puerto Rico for our founder genetic mutation. The addition of nNO technology promotes earlier disease screening and recognition for patients with PCD on the island. The access to nNO helped us to properly characterize the PCD diagnosis for patients with the RSPH4A (c.921+3_921+6del (intronic)). As a result, our findings will allow us to be part of the national PCD foundation registry and represent Puerto Rican Hispanics in future PCD multicentric clinical trials.

The Genetics of Primary Ciliary Dyskinesia in Puerto Rico.

Primary ciliary dyskinesia (PCD) has been linked to more than 50 genes that cause a spectrum of clinical symptoms, including newborn respiratory distress, sinopulmonary infections, and laterality abnormalities. Although the RSPH4A (c.921+3_6delAAGT) pathogenic variant has been related to Hispanic groups with Puerto Rican ancestry, it is uncertain how frequently other PCD-implicated genes are present on the island. A retrospective chart review of n = 127 genetic reports from Puerto Rican subjects who underwent genetic screening for PCD variants was conducted from 2018 to 2022. Of 127 subjects, 29.1% subjects presented PCD pathogenic variants, and 13.4% were homozygous for the RSPH4A (c.921+3_6delAAGT) founder mutation. The most common pathogenic variants were in RSPH4A and ZMYND10 genes. A description of the frequency and geographic distribution of implicated PCD pathogenic variants in Puerto Rico is presented. Our findings reconfirm that the presence of PCD in Puerto Rico is predominantly due to a founder pathogenic variant in the RSPH4A (c.921+3_6delAAGT) splice site. Understanding the frequency of PCD genetic variants in Puerto Rico is essential to map a future genotype-phenotype PCD spectrum in Puerto Rican Hispanics with a heterogeneous ancestry.

Primary Ciliary Dyskinesia: Ancestral Haplotypes Analysis of the RSPH4A Founder Mutation in Puerto Rico.

Genetic mutations in >50 genes, including RSPH4A, can lead to primary ciliary dyskinesia (PCD). RSPH4A mutations affect radial spokes, which alter the configuration of the ciliary ultrastructure and lead to chronic oto-sinopulmonary disease. The RSPH4A [c.921+3_6delAAGT] founder mutation was described as one cause of PCD without laterality defects in Puerto Rico. The average Puerto Rican genetic composition includes 64% European, 21% African ancestral, and 15% Native-American or Taino, a native tribe in the Caribbean at the start of the European colonization, genes. Due to the relatively elevated Taino ancestry on the island, it might have contributed to the endemicity of the RSPH4A [c.921+3_6delAAGT] splice site mutation. However, the ancestry of this mutation is still not confirmed. This article describes the two pediatric PCD cases with the Puerto Rican foundermutationand reports an ancestral haplotype analysis of the RSPH4A [c.921+3_6delAAGT] splice site mutation. A median-joining haplotype network was constructed with the genome sequence data from 104 Puerto Rican subjects in the 1000 Genomes Project (1000GP). This study found that the RSPH4A [c.921+3_6delAAGT] splice site mutation was carried to Puerto Rico from Europe by conquistadors or shortly after the conquest and that it gained frequency on the island through genetic drift fueled by a subsequent population expansion.

Primary Ciliary Dyskinesia Diagnostic Challenges: Understanding the Clinical Phenotype of the Puerto Rican RSPH4A Founder Mutation.

Primary ciliary dyskinesia (PCD) is a rare, heterogeneous ciliopathy resulting in chronic oto-sino-pulmonary disease, bronchiectasis, newborn respiratory distress, and laterality defects. PCD diagnosis can be achieved by following diagnostic algorithms that include electron microscopy, genetics, and ancillary testing. Genetic mutations in more than 45 genes, including RSPH4A, can lead to PCD. RSPH4A mutations located on chromosome six, affect radial spokes and results in central complex apparatus abnormalities. The RSPH4A [c.921 + 3_6delAAGT] founder mutation was described as one cause of PCD without laterality defects in Puerto Rico. Additionally, there are further diagnostic challenges present in the Puerto Rican population to diagnose PCD. We describe the demographics, clinical features, and RSPH4A genetic variants in 13 patients with clinical PCD affecting 11 Puerto Ricans from unrelated families.

Frequency of Cystic Fibrosis Transmembrane Conductance Regulator Variants in Individuals Evaluated for Primary Ciliary Dyskinesia.

OBJECTIVE: To evaluate whether cystic fibrosis transmembrane conductance regulator (CFTR) variants are more common among individuals tested for primary ciliary dyskinesia (PCD) compared with controls. STUDY DESIGN: Data were studied from 1021 individuals with commercial genetic testing for suspected PCD and 91 777 controls with genetic testing at the same company (Invitae) for symptoms/diseases unrelated to PCD or CFTR testing. The prevalence of CFTR variants was compared between controls and each of 3 groups of individuals tested for PCD (PCD-positive, -uncertain, and -negative molecular diagnosis). RESULTS: The prevalence of 1 pathogenic CFTR variant was similar among the individual groups. When combining the PCD-uncertain and PCR-negative molecular diagnosis groups, there was a higher prevalence of single pathogenic CFTR variants compared with controls (P = .03). Importantly, >1% of individuals who had negative genetic testing results for PCD had 2 pathogenic CFTR variants (8 of 723), and the incidence of cystic fibrosis (CF) (2 pathogenic variants) is roughly 1 in 3000 individuals of Caucasian ethnicity (∼0.03%). This incidence was also greater than that of 2 pathogenic CFTR variants in the control population (0.09% [84 of 91 777]; P = 9.60 × 10-16). These variants correlate with mild CFTR-related disease. CONCLUSIONS: Our results suggest that a single pathogenic CFTR variant is not likely to be a PCD-mimetic, but ongoing studies are needed in individuals in whom PCD is suspected and genetic testing results are uncertain or negative. Furthermore, CF may be misdiagnosed as PCD, reflecting phenotypic overlap. Among individuals evaluated for PCD, CF should be considered in the differential even in the CF newborn screening era.

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.

Manifestaciones otorrinolaringológicas de la disquinesia ciliar primaria / Ent manifestations of primary ciliar dyskinesia

Primary Ciliary Diskinesia (PCD) is a heterogeneous, rare genetic disease that can be present in up to 5% of the patients with recurrent respiratory infections. The underlying pathogenesis is disrupted ciliary function which results in delayed mucus transportation leading to chronic inflammation in the upper and lower respiratory tract. Almost all PCD patients have otolaryngologic manifestations, characterized by recurrent ear and sinus infections, chronic inflammation at this level, sensorioneural and conductive hearing loss, and sleep-disordered breathing. This article reviews the diagnostic and therapeutic aspects of these manifestations.

La Disquinesia Ciliar Primaria (DCP) es una enfermedad genética heterogénea rara que puede estar presente en hasta un 5% de los pacientes que presentan infecciones respiratorias a repetición. La patogenia es secundaria a una alteración de la función ciliar que a su vez provoca una alteración del transporte de moco, resultando en una condición inflamatoria crónica en la vía aérea superior e inferior. Las manifestaciones clínicas de la esfera otorrinolaringológica en los pacientes portadores de DCP están presentes prácticamente en la totalidad de los mismos, y se caracterizan por infecciones recidivantes de oídos y cavidades perinasales, inflamación crónica a este nivel, hipoacusia neurosensorial y conductiva, y alteraciones respiratorias durante el sueño. En este artículo se revisarán los aspectos diagnósticos y terapéuticos de dicho compromiso.

Imágenes diagnósticas en el estudio del compromiso pulmonar de la discinesia ciliar primaria en niños / Chest imaging in study of primary ciliary dyskinesia in children

The diagnosis of primary ciliary dyskinesia (PCD) is complex and requires high clinical suspicion. The findings in the diagnostic images are nonspecific and can be seen in other conditions of the airway. In this review, we will describe the findings of PCD in chest radiography and computed tomography, with emphasis on some of the characteristics that differentiate it from cystic fibrosis and we will review the role of CT in the monitoring of changes of the PCD, since the CT findings correlate very well with the structural changes that occur in the course of PCD, especially bronchiectasis. However, using serial CTs should be decided on a case-by-case basis to avoid unnecessary radiation because they are pediatric patients.

El diagnóstico de la Discinesia ciliar primaria (DCP) es complejo y requiere alta sospecha clínica. Los hallazgos en la imágenes diagnósticas son inespecíficos y se pueden ver en otras afecciones de la vía aérea. En esta revisión describiremos los hallazgos de la DCP en Radiología simple y en Tomografía computada (TC), con énfasis en algunas de las características que permiten diferenciarla de la Fibrosis quística (FQ) y revisaremos el rol de la TC en la monitorización de la DCP ya que los hallazgos en la TC se correlacionan muy bien con los cambios estructurales que ocurren en el curso de la DCP, en especial las bronquiectasias. Sin embargo usar TC seriadas se debe decidir caso por caso para evitar la radiación innecesaria por ser pacientes pediátricos.

Kinesiología respiratoria en niños con disquinesia ciliar primaria / Respiratory phisioterapy in children with primary ciliary dyskinesia

Primary ciliary dyskinesia is a rare autosomal recessive disease with compromised mucociliary drainage. Among the most commonly recommended non-pharmacological therapeutic strategies are secretion drainage techniques. However, the evidence for the use and effectiveness of these techniques is low, and they are generally based on extrapolated evidence of cystic fibrosis. This article reviews the recommendations and available evidence of chest physiotherapy, mainly manual and instrumental techniques of bronchial drainage and physical exercise in children with primary ciliary dyskinesia.

La disquinesia ciliar primaria es una enfermedad autosómica recesiva rara con compromiso del drenaje mucociliar. Entre las estrategias terapéuticas no farmacológicas más comúnmente recomendadas se encuentra las técnicas de drenaje de secreciones. Sin embargo, la evidencia del uso y efectividad de estas técnicas es reducida y generalmente se basan en evidencia extrapolada de la fibrosis quística. Este artículo revisa las recomendaciones y la evidencia disponible de la kinesiología respiratoria, principalmente las técnicas manuales e instrumentales de drenaje bronquial y el ejercicio físico en niños con disquinesia ciliar primaria.

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)

Síndrome de Kartagener: diagnóstico neonatal. A propósito de un caso / Kartagener syndrome: neonatal diagnosis. A case report

El síndrome de Kartagener es una enfermedad hereditaria autosómica recesiva caracterizada por la asociación de discinesia ciliar primaria y la tríada situs inversus total, sinusitis crónicas y bronquiectasias. Su prevalencia varía en 1/15 000-1/30 000, pero se estima que muchos pacientes con discinesia ciliar primaria no han sido diagnosticados. Su presentación clínica es inespecífica y heterogénea, y no hay una única prueba gold standard para su diagnóstico. Esto, unido a las limitaciones y no disponibilidad de las pruebas, hace que el diagnóstico se retrase. Un diagnóstico y tratamiento adecuados de forma precoz modifican el pronóstico. En los últimos años, las sociedades han publicado algoritmos diagnósticos para pacientes con clínica sugestiva. Por ello, es importante una puesta al día y enfatizar en la necesidad de una sospecha clínica ante las manifestaciones clínicas de esta enfermedad. Se presenta a un recién nacido con este síndrome diagnosticado por estudio genético en un hospital secundario.

Kartagener Syndrome is an inherited autosomal recessive disorder characterized by primary ciliary dyskinesia and the triad of situs inversus viscerum, chronic sinus disease and bronchiectasis. Its prevalence varies from 1/15 000 to 1/30 000 but it is estimated that a lot of patients with primary ciliary dyskinesia have not been diagnosed as such. Its clinical presentation is non-specific and heterogeneous, and there is not a single, gold standard, diagnostic test. The diagnosis is often delayed because of these reasons and limitations and no availability of diagnostic tests. Early diagnosis and treatment change patient's prognosis. In addition, Scientific Societies have published recent diagnostic algorithm to evaluate the patient with suspected primary ciliary dyskinesia. Therefore, it is important to keep up to date with all the latest articles. We present the case of a newborn with this syndrome diagnosed by genetic analysis in a secondary care hospital.

Síndrome de Kartagener / Kartagener Syndrome

Introducción: El síndrome de Kartagener es una variación clínica de la discinesia ciliar primaria, se caracteriza por la triada clásica de sinusitis crónica, bronquiectasia y situs inversus (total o parcial), catalogada como enfermedad rara de herencia autosómica recesiva. Objetivo: Analizar las manifestaciones clínicas, análisis complementarios y tratamiento de los pacientes diagnosticados con síndrome de Kartagener en la República del Ecuador. Presentación de caso: Paciente femenina, de nacionalidad ecuatoriana, con manifestaciones clínicas de la tríada del síndrome de Kartagener y rasgo de infertilidad, con antecedente de sinusitis crónica desde 14 años de edad. Los estudios imagenológicos de rayos X de tórax y tomografía axial computarizada de tórax y senos paranasales confirmaron las manifestaciones de síndrome de Kartagener, que representa el séptimo caso reportado en el país. Se analizaronn las características clínicas de la serie de siete casos reportados en el Ecuador hasta el presente, correspondiente al período 2015-2018 y exámenes complementarios realizados para el diagnóstico de certeza y diferencial. Conclusiones: Se presentó el séptimo caso de síndrome de Kartagener diagnosticado en el Ecuador y se analizó la serie de una totalidad de 7 pacientes reportados en el país entre 2015-2018(AU)

Introduction: Kartagener syndrome is a clinical variation of primary ciliary dyskinesia, characterized by the classic triad of chronic sinusitis, bronchiectasis and situs inversus (total or partial), classified as a rare autosomal recessive inheritance disease. Objective: To analyze the clinical manifestations, complementary tests and treatment of patients diagnosed with Kartagener syndrome in the Republic of Ecuador. Case presentation: Female patient, of Ecuadorian nationality, with clinical manifestations of the Kartagener syndrome triad and infertility trait, with a history of chronic sinusitis since 14 years of age. Imaging studies of thorax, x-rays and computed tomography of chest and paranasal sinuses confirmed the manifestations of Kartagener syndrome, which represents the seventh case reported in the country. Respiratory evolution and therapeutic management are exposed. In this context, we analyze the clinical characteristics of the series of seven cases reported in Ecuador up to the present, corresponding to the period 2015-2018 and complementary tests performed for the certainty and differential diagnosis. Conclusions: The seventh case of Kartagener syndrome diagnosed in Ecuador is presented, and the series of a totality of 7 patients reported in the country between 2015-2018 is analyzed(AU)

[Kartagener syndrome: neonatal diagnosis. A case report]. / Síndrome de Kartagener: diagnóstico neonatal. A propósito de un caso.

Kartagener Syndrome is an inherited autosomal recessive disorder characterized by primary ciliary dyskinesia and the triad of situs inversus viscerum, chronic sinus disease and bronchiectasis. Its prevalence varies from 1/15 000 to 1/30 000 but it is estimated that a lot of patients with primary ciliary dyskinesia have not been diagnosed as such. Its clinical presentation is non-specific and heterogeneous, and there is not a single, gold standard, diagnostic test. The diagnosis is often delayed because of these reasons and limitations and no availability of diagnostic tests. Early diagnosis and treatment change patient's prognosis. In addition, Scientific Societies have published recent diagnostic algorithm to evaluate the patient with suspected primary ciliary dyskinesia. Therefore, it is important to keep up to date with all the latest articles. We present the case of a newborn with this syndrome diagnosed by genetic analysis in a secondary care hospital.

El síndrome de Kartagener es una enfermedad hereditaria autosómica recesiva caracterizada por la asociación de discinesia ciliar primaria y la tríada situs inversus total, sinusitis crónicas y bronquiectasias. Su prevalencia varía en 1/15 000-1/30 000, pero se estima que muchos pacientes con discinesia ciliar primaria no han sido diagnosticados. Su presentación clínica es inespecífica y heterogénea, y no hay una única prueba gold standard para su diagnóstico. Esto, unido a las limitaciones y no disponibilidad de las pruebas, hace que el diagnóstico se retrase. Un diagnóstico y tratamiento adecuados de forma precoz modifican el pronóstico. En los últimos años, las sociedades han publicado algoritmos diagnósticos para pacientes con clínica sugestiva. Por ello, es importante una puesta al día y enfatizar en la necesidad de una sospecha clínica ante las manifestaciones clínicas de esta enfermedad. Se presenta a un recién nacido con este síndrome diagnosticado por estudio genético en un hospital secundario.