Estudio de la vía aérea superior frente a apneas obstructivas del sueño persistentes en pediatría / An approach to the upper airway evaluation in pediatric persistent obstructive sleep apnea

El síndrome de apneas obstructivas del sueño (SAOS) en pediatría constituye un trastorno asociado a múltiples consecuencias en el espectro cognitivo y comportamental. El principal factor de riesgo asociado es la hipertrofia amigdalina y las vegetaciones adenoideas. La adenoamigdalectomía es el tratamiento de primera línea. La incidencia del SAOS persistente varía entre un 15 % y un 75 % según las comorbilidades. Este se presenta como un desafío a la hora de tratarlo; requiere un abordaje integral para su diagnóstico y tratamiento adecuado. El objetivo de esta revisión bibliográfica es proponer un abordaje diagnóstico y terapéutico para el SAOS persistente.

In pediatrics, obstructive sleep apnea syndrome (OSAS) is a disorder associated with multiple consequences at the cognitive and behavioral level. The main associated risk factor is the presence of tonsillar hypertrophy and adenoids. An adenotonsillectomy is the first-line treatment. The incidence of persistent OSAS varies from 15% to 75%, depending on comorbidities. This is a challenge in terms of management; it requires a comprehensive approach for an adequate diagnosis and treatment. The objective of this bibliographic review is to propose a diagnostic and therapeutic approach for persistent OSAS.

An approach to the upper airway evaluation in pediatric persistent obstructive sleep apnea. / Estudio de la vía aérea superior frente a apneas obstructivas del sueño persistentes en pediatría.

In pediatrics, obstructive sleep apnea syndrome (OSAS) is a disorder associated with multiple consequences at the cognitive and behavioral level. The main associated risk factor is the presence of tonsillar hypertrophy and adenoids. An adenotonsillectomy is the first-line treatment. The incidence of persistent OSAS varies from 15% to 75%, depending on comorbidities. This is a challenge in terms of management; it requires a comprehensive approach for an adequate diagnosis and treatment. The objective of this bibliographic review is to propose a diagnostic and therapeutic approach for persistent OSAS.

El síndrome de apneas obstructivas del sueño (SAOS) en pediatría constituye un trastorno asociado a múltiples consecuencias en el espectro cognitivo y comportamental. El principal factor de riesgo asociado es la hipertrofia amigdalina y las vegetaciones adenoideas. La adenoamigdalectomía es el tratamiento de primera línea. La incidencia del SAOS persistente varía entre un 15 % y un 75 % según las comorbilidades. Este se presenta como un desafío a la hora de tratarlo; requiere un abordaje integral para su diagnóstico y tratamiento adecuado. El objetivo de esta revisión bibliográfica es proponer un abordaje diagnóstico y terapéutico para el SAOS persistente.

Impact of adenotonsillectomy in pediatric respiratory function / Impacto de la cirugía adenoamigdalar sobre la función respiratoria pediátrica

Introduction: Adenotonsillar hypertrophy (ATH) is an important health condition that leads to upper airway obstruction and constitutes the main cause of obstructive sleep disordered breathing (OSDB) in children. The aim of this study was to analyze the effect of surgical intervention on spirometrical parameters of children with ATH/OSDB and upper airway recurrent infections (URTIs). Material and methods The study covered children treated surgically in a Pediatric Ambulatory Unit in a tertiary hospital. Spirometric tests were performed before and three months after surgery and results were compared. Results A total of 78 children were enrolled with a mean age of 6.95 ± 2,81 years. There was a significant improvement in forced vital capacity (FVC), forced expiratory volume in the first second (FEV1), peak expiratory flow (PEF) and forced expiratory flow rate at 25% (F25) values after surgery in children suffering from OSDB (FVC pre: 1.52 ± 0.47 L vs FVC post: 1.85 ± 0.63 L, p < 0.001; FEV1 pre: 1.24 ± 0.38 L vs FEV1 post: 1.39 ± 0.40 L, p = 0.014; PEF pre: 2.04 ± 0.85 L/s vs PEF post: 2.33 ± 0.76 L/s, p = 0.014; F25 pre: 1.77 ± 0.77 L/s vs F25 post: 2.02 ± 0.73 L/s, p = 0.030). On a multivariate analysis model, preoperative tonsil size and performing tonsillectomy were the most significant determinants of improvement in spirometric values (p < 0.05). Children with isolated adenoid hypertrophy without tonsillar obstruction and those with URTIs alone did not show relevant differences in spirometric values after surgery (p > 0.05). No significant differences were found concerning pre-operative and post-operative forced expiratory flow rate at 75% (F75) and forced expiratory flow between 25 and 75% of the pulmonary volume (FEF25–75%) in any group (p > 0.05). Conclusions Surgery seems effective in ameliorating spirometry values in patients with OSDB and ATH, namely FVC, FEV1, PEF and F25. ... (AU)

Introducción: La hipertrofia adenoamigdalar (HAA) es una importante condición de salud que conduce a la obstrucción de las vías respiratorias superiores y constituye la principal causa de trastornos respiratorios obstructivos del sueño (TROS) en los niños. El objetivo de este estudio fue analizar el efecto de la intervención quirúrgica sobre los parámetros espirométricos de niños con HAA/TROS e infecciones recurrentes de las vías respiratorias superiores (IrVAS). Material y Métodos El estudio abarcó a niños operados en una Unidad Ambulatoria Pediátrica de un hospital de tercer nivel. Se realizaron espirometrías antes y tres meses después de la cirugía y se compararon los resultados. Resultados Se incluyeron un total de 78 niños con una edad media de 6,95 ± 2,81 años. Hubo una mejora significativa en los valores de capacidad vital forzada (FVC), volumen espiratorio forzado en el primer segundo (FEV1), flujo espiratorio máximo (PEF) y tasa de flujo espiratorio forzado al 25 % (F25) después de la cirugía en niños que sufrían de TROS (FVC pre: 1.52 ± 0.47 L vs FVC post: 1.85 ± 0.63 L, p < 0.001; FEV1 pre: 1.24 ± 0.38 L vs FEV1 post: 1.39 ± 0.40 L, p = 0.014; PEF pre: 2.04 ± 0.85 L/s vs PEF post: 2.33 ± 0.76 L/s, p = 0.014; F25 pre: 1.77 ± 0.77 L/s vs F25 post: 2.02 ± 0.73 L/s, p = 0.030). En un modelo de análisis multivariado, el tamaño preoperatorio de las amígdalas y la amigdalectomía fueron los determinantes más significativos de la mejora en los valores espirométricos (p < 0.005). Los niños con hipertrofia adenoidea aislada sin obstrucción amigdalina y aquellos con IrVAS sin TROS no mostraron diferencias relevantes en los valores espirométricos tras la cirugía (p > 0,05). ... (AU)

Impact of adenotonsillectomy in pediatric respiratory function.

INTRODUCTION: Adenotonsillar hypertrophy (ATH) is an important health condition that leads to upper airway obstruction and constitutes the main cause of obstructive sleep disordered breathing (OSDB) in children. The aim of this study was to analyze the effect of surgical intervention on spirometrical parameters of children with ATH/OSDB and upper airway recurrent infections (URTIs). MATERIAL AND METHODS: The study covered children treated surgically in a Pediatric Ambulatory Unit in a tertiary hospital. Spirometric tests were performed before and three months after surgery and results were compared. RESULTS: A total of 78 children were enrolled with a mean age of 6.95 ±â€¯2,81 years. There was a significant improvement in forced vital capacity (FVC), forced expiratory volume in the first second (FEV1), peak expiratory flow (PEF) and forced expiratory flow rate at 25% (F25) values after surgery in children suffering from OSDB (FVC pre: 1.52 ±â€¯0.47 L vs FVC post: 1.85 ±â€¯0.63 L, p < 0.001; FEV1 pre: 1.24 ±â€¯0.38 L vs FEV1 post: 1.39 ±â€¯0.40 L, p = 0.014; PEF pre: 2.04 ±â€¯0.85 L/s vs PEF post: 2.33 ±â€¯0.76 L/s, p = 0.014; F25 pre: 1.77 ±â€¯0.77 L/s vs F25 post: 2.02 ±â€¯0.73 L/s, p = 0.030). On a multivariate analysis model, preoperative tonsil size and performing tonsillectomy were the most significant determinants of improvement in spirometric values (p < 0.05). Children with isolated adenoid hypertrophy without tonsillar obstruction and those with URTIs alone did not show relevant differences in spirometric values after surgery (p > 0.05). No significant differences were found concerning pre-operative and post-operative forced expiratory flow rate at 75% (F75) and forced expiratory flow between 25 and 75% of the pulmonary volume (FEF25-75%) in any group (p > 0.05). CONCLUSIONS: Surgery seems effective in ameliorating spirometry values in patients with OSDB and ATH, namely FVC, FEV1, PEF and F25. Spirometry may give a clue on the importance of adequate surgical resolution of pediatric lymphoid hypertrophy obstruction. No significant differences exist on spirometric parameters of children with isolated adenoid hypertrophy and URTIs without ATH. Further studies are needed in order to evaluate the potential benefit of spirometry utilization in the daily clinical setting.

Is it necessary to perform a follow-up study after adenotonsillectomy in all children with moderate-severe obstructive sleep apnoea?

Hypertrophy of adenotonsillar tissue is the most common cause of OSAS in otherwise healthy children, and therefore adenotonsillectomy is the first line treatment. Scientific societies recommend nocturnal follow-up PSG to assess for residual OSAS in children with preoperative evidence for moderate to severe OSAS, obesity, craniofacial anomalies that obstruct the upper airway and neurological disorders, based on the increasing trend of publications reporting residual OSAS after adenotonsillectomy. Follow-up PSG values in children with a pre-operative diagnosis of severe OSAS were analysed retrospectively, and compared to the parents' impression after ENT surgery. The study population included 41 healthy children with severe OSAS and adenotonsillar surgery. The percentage of children with normal PSG parameters (AHI < 2/h) after adenotonsillectomy was 80.48%. A very good correlation was observed between the parents' perception after treatment and the follow-up PSG parameters, specifically when the parents perceived that the patient had shown "complete resolution" (no snoring or apnoea), 90.62% of the children had an AHI < 2/h in the follow-up PSG, the maximum residual AHI being 2.6/h. In healthy children with no underlying pathology, the information provided by the parents on clinical progression after surgery could be useful and might enable the selection of those patients who require a follow-up study, avoiding overload in sleep units.

¿Es necesario repetir el estudio de sueño de control a todos los niños con SAHOS moderado-severo tras la cirugía? / Is it necessary to perform a follow-up study after adenotonsillectomy in all children with moderate-severe obstructive sleep apnoea?

La hipertrofia adenoamigdalar es, en niños sin patología de base, la causa más frecuente de SAHOS y, por tanto, la adenoamigdalectomía constituye la primera línea de tratamiento. Diferentes sociedades científicas recomiendan la realización de una PSG de control en el seguimiento, en caso de niños con patología de base o si el diagnóstico previo a la cirugía era de SAHOS moderado o severo, debido a la tendencia creciente de publicaciones con SAHOS residual tras adenoamigdalectomía. Se analiza retrospectivamente la correlación entre la percepción de los padres tras cirugía ORL y el resultado de la PSG de control en niños con diagnóstico de SAHOS severo en los que se ha realizado tratamiento quirúrgico. Se incluyeron 41 niños con SAHOS severo y cirugía adenoamigdalar, cuya tasa de curación ha sido del 80,48%. Se observa muy buena correlación entre la percepción de los padres tras el tratamiento y los índices en la PSG de control, destacando que cuando los padres percibían que el paciente había experimentado una «resolución completa» (no ronquido ni apneas), el 90,62% de los niños presentaban un IAHO<2/h en el control posterior al tratamiento, siendo el IAHO residual máximo de 2,6/h. Concluimos que, en un niño sin patología de base, la información aportada por los padres acerca de la evolución clínica tras la cirugía podría ser discriminativa para elegir a aquellos pacientes a los que solicitar un estudio de control, evitando sobrecargas en las unidades de sueño.(AU)

Hypertrophy of adenotonsillar tissue is the most common cause of OSAS in otherwise healthy children, and therefore adenotonsillectomy is the first line treatment. Scientific societies recommend nocturnal follow-up PSG to assess for residual OSAS in children with preoperative evidence for moderate to severe OSAS, obesity, craniofacial anomalies that obstruct the upper airway and neurological disorders, based on the increasing trend of publications reporting residual OSAS after adenotonsillectomy. Follow-up PSG values in children with a pre-operative diagnosis of severe OSAS were analysed retrospectively, and compared to the parents’ impression after ENT surgery. The study population included 41 healthy children with severe OSAS and adenotonsillar surgery. The percentage of children with normal PSG parameters (AHI <2/h) after adenotonsillectomy was 80.48%. A very good correlation was observed between the parents’ perception after treatment and the follow-up PSG parameters, specifically when the parents perceived that the patient had shown «complete resolution» (no snoring or apnoea), 90.62% of the children had an AHI <2/h in the follow-up PSG, the maximum residual AHI being 2.6/h. In healthy children with no underlying pathology, the information provided by the parents on clinical progression after surgery could be useful and might enable the selection of those patients who require a follow-up study, avoiding overload in sleep units.(AU)

Edema pulmonar posobstructivo en niños: ¿por qué debería pensarlo el otorrinolaringólogo? / Post obstructive pulmonary edema in children: Why should the otolaryngologist think about it?

Introducción: el edema pulmonar posobstructivo (EPPO), o por presión negativa, es una entidad potencialmente mortal, que se desarrolla inmediatamente luego de una obstrucción severa de la vía aérea superior. Materiales y métodos: descripción de una serie de 4 casos de EPPO ocurridos en niños, 3 de ellos secundarios a aspiración de un cuerpo extraño y el otro como complicación de una adenoamigdalectomía. Discusión: la causa más frecuente de la obstrucción de la vía aérea es el laringoespasmo asociado con la manipulación de la vía aérea durante la intubación o las intervenciones quirúrgicas de la vía aérea. Tanto la adenoamigdalectomía, como la extracción de cuerpos extraños en la vía aérea constituyen unas de las intervenciones más frecuentes de la práctica otorrinolaringológica para el tratamiento de la obstrucción de la vía aérea; sin embargo, puede potencialmente desarrollar EPPO. Conclusión: Destacamos la importancia de que el otorrinolaringólogo tenga presente esta afección en niños que presentan dificultad respiratoria tras cualquier obstrucción o intervención quirúrgica de la vía aérea.si bien los cuerpos extraños en la vía aérea en niños suelen presentarse con crisis de asfixia, tos paroxística o dificultad respiratoria luego del evento, también debería pensarse la posibilidad de un evento de aspiración de un cuerpo extraño no presenciado ante un cuadro de edema pulmonar sin causa conocida. Si bien la adenoamigdalectomía es una de las cirugías más frecuente en la práctica otorrinolaringológica, esta potencialmente puede complicarse con EPPO.

Introduction: Post-obstructive pulmonary edema (POPE) or by Negative Pressure, is a potentially fatal entity that develops immediately after a severe obstruction of the upper airway. Materials and methods: Description of a series of four cases of POPE in children, three of them secondary to foreign body aspiration and the remaining one as a complication of adenotonsillectomy. Discussion: The most common etiology of airway obstruction is laryngospasm associated to airway manipulation during intubation or airway surgery. Both adenotonsillectomy and removal of foreign bodies in the airway are one of the most common procedures in otorhinolaryngology practice for management of airway obstruction, however, they can potentially develop EPPO. Conclusion: Although airway foreign bodies in children usually present with sudden episode of choking, paroxysmal cough and/or respiratory distress, the likelihood of an unwitnessed foreign body aspiration event in the presence of unexplained pulmonary edema should also be considered. Although adenotonsillectomy is one of the most common surgeries in ENT practice, it can potentially be complicated by EPPO. We emphasize the importance of the otorhinolaryngologist keeping this condition in mind in children who present respiratory distress after any obstruction or surgical intervention of the airway.

Impact of adenotonsillectomy on the quality of life of patients operated on at the Hospital de Clínicas, Paraguay / Impacto de la amigdalectomía en la calidad de vida de los pacientes operados en el Hospital de Clínicas, Paraguay

The objective of this study is to determine the impact of adenotonsillectomy on the quality of life of postoperative patients. The study is observational, cross-sectional, and retrospective. The files of all postoperative adenotonsillectomy patients in Otorhinolaryngology Service, Hospital de Clínicas, San Lorenzo Paraguay. The Obstructive sleep apnea ­ 18 questionnaire (OSA 18) was applied, asking patients about symptoms before and after surgery. An effective sample of 143 postoperative patients was obtained. The average age was 6.05 ± 2.08 years, 55.10% (81) were male and 44.89% (66) were female, 65.30% (96) were from urban areas and 34.69% (51) from the rural areas. The t test was performed for means of two paired samples, comparing the results of the Obstructive sleep apnea ­ 18 questionnaire surveys before and after surgery which presented a significant difference (p <0.05) with a tendency to improve the quality of life after surgery. It has been shown that there is a significant difference, a considerable improvement in the quality of life of patients after adenotonsillectomy

El objetivo de este estudio fue determinar el impacto de la adenoamigdalectomía en la calidad de vida de los pacientes postoperados. Se diseñó un estudio observacional, transversal y retrospectivo. Se revisaron los expedientes de todos los pacientes postoperados de adenoamigdalectomía en el servicio de otorrinolaringología del Hospital de Clínicas de san Lorenzo, Paraguay, se aplicó el cuestionario de apnea obstructiva del sueño ­ 18 (AOS 18), en el que se preguntaba a los pacientes sobre los síntomas antes y después de la cirugía. Se obtuvo una muestra efectiva de 143 pacientes postoperatorios. La edad media fue de 6,05 ± 2,08 años, el 55,10% (81) eran hombres y el 44,89% (66) eran mujeres, el 65,30% (96) eran de zonas urbanas y el 34,69% (51) de zonas rurales. Se realizó la prueba t para medias de dos muestras pareadas, comparando los resultados de la encuesta del cuestionario de apnea obstructiva del sueño - 18 antes y después de la cirugía que presentó una diferencia significativa (p <0,05) con tendencia a mejorar la calidad de vida después de la cirugía. El estudio muestra una mejora considerable en la calidad de vida de los pacientes tras la adenoamigdalectomía.

Is it necessary to perform a follow-up study after adenotonsillectomy in all children with moderate-severe obstructive sleep apnoea? / ¿Es necesario repetir el estudio de sueño de control a todos los niños con SAHOS moderado-severo tras la cirugía?

Hypertrophy of adenotonsillar tissue is the most common cause of OSAS in otherwise healthy children, and therefore adenotonsillectomy is the first line treatment. Scientific societies recommend nocturnal follow-up PSG to assess for residual OSAS in children with preoperative evidence for moderate to severe OSAS, obesity, craniofacial anomalies that obstruct the upper airway and neurological disorders, based on the increasing trend of publications reporting residual OSAS after adenotonsillectomy. Follow-up PSG values in children with a pre-operative diagnosis of severe OSAS were analysed retrospectively, and compared to the parents' impression after ENT surgery. The study population included 41 healthy children with severe OSAS and adenotonsillar surgery. The percentage of children with normal PSG parameters (AHI <2/h) after adenotonsillectomy was 80.48%. A very good correlation was observed between the parents' perception after treatment and the follow-up PSG parameters, specifically when the parents perceived that the patient had shown «complete resolution¼ (no snoring or apnoea), 90.62% of the children had an AHI <2/h in the follow-up PSG, the maximum residual AHI being 2.6/h. In healthy children with no underlying pathology, the information provided by the parents on clinical progression after surgery could be useful and might enable the selection of those patients who require a follow-up study, avoiding overload in sleep units.

Recomendaciones para el manejo clínico del niño en el posoperatorio de adenoamigdalectomía / Recommendations for the clinical management of the child in the postoperative adenoamygdalectomy

El síndrome de apneas e hipoapneas obstructivas del sueño se asocia con una disminución de la calidad de vida, bajo rendimiento escolar y, hasta en el 40% de los niños, trastornos de conducta como hiperactividad, enuresis, ansiedad y depresión. Varios estudios demostraron que la adenoamigdalectomía es efectiva para mejorar o resolver los trastornos respiratorios del sueño. Si bien esta cirugía tiene resultados beneficiosos, no está exenta de riesgos. El dolor y el sangrado posoperatorio son las dos causas principales de morbilidad. Otras complicaciones de la cirugía son las náuseas y los vómitos posoperatorios, el retraso en la alimentación, la deshidratación, la otalgia referida, los cambios en la voz y, raras veces, la muerte.En este artículo se realizan recomendaciones sobre el cuidado posoperatorio de los niños con adenoamigdalectomía

Obstructive sleep apnea and hypopnea syndrome is associated with decreased quality of life, poor school performance and, in up to 40% of children, behavioral problems such as hyperactivity, enuresis, anxiety and depression. Several studies have shown that adenoamygdalectomy is effective in improving or resolving sleep-disordered breathing. While this surgery has beneficial results, it is not without risks. Postoperative pain and bleeding are the two main causes of morbidity. Other complications of surgery include postoperative nausea and vomiting, delayed feeding, dehydration, referred earache, voice changes, and, rarely, death. Recommendations on postoperative care for children undergoing adenoamygdalectomy are mentioned in this article.

[Recommendations for the clinical management of the child in the postoperative adenoamygdalectomy]. / Recomendaciones para el manejo clínico del niño en el posoperatorio de adenoamigdalectomía.

Obstructive sleep apnea and hypopnea syndrome is associated with decreased quality of life, poor school performance and, in up to 40 % of children, behavioral problems such as hyperactivity, enuresis, anxiety and depression. Several studies have shown that adenoamygdalectomy is effective in improving or resolving sleepdisordered breathing. While this surgery has beneficial results, it is not without risks. Postoperative pain and bleeding are the two main causes of morbidity. Other complications of surgery include postoperative nausea and vomiting, delayed feeding, dehydration, referred earache, voice changes, and, rarely, death. Recommendations on postoperative care for children undergoing adenoamygdalectomy are mentioned in this article.

El síndrome de apneas e hipoapneas obstructivas del sueño se asocia con una disminución de la calidad de vida, bajo rendimiento escolar y, hasta en el 40 % de los niños, trastornos de conducta como hiperactividad, enuresis, ansiedad y depresión. Varios estudios demostraron que la adenoamigdalectomía es efectiva para mejorar o resolver los trastornos respiratorios del sueño. Si bien esta cirugía tiene resultados beneficiosos, no está exenta de riesgos. El dolor y el sangrado posoperatorio son las dos causas principales de morbilidad. Otras complicaciones de la cirugía son las náuseas y los vómitos posoperatorios, el retraso en la alimentación, la deshidratación, la otalgia referida, los cambios en la voz y, raras veces, la muerte. En este artículo se realizan recomendaciones sobre el cuidado posoperatorio de los niños con adenoamigdalectomía.

Comparación de dos cuestionarios específicos de calidad de vida en población pediátrica con patología adenoamigdalar / Comparison of two specific quality of life questionnaires in a paediatric population with adenotonsillar disease

Introducción y objetivo: El T-14 y el TAHSI son cuestionarios específicos validados y fiables para medir la calidad de vida en pacientes pediátricos con patología adenoamigdalar. El presente trabajo tiene como objetivo comparar las versiones adaptadas y validadas en lengua española de estos dos cuestionarios (T-14-s y s-TAHSI) con la finalidad de valorar la adopción preferente de alguno de ellos en nuestro medio.Material y MétodosPara determinar la existencia de una correlación entre ambos instrumentos, se realizó un estudio prospectivo transversal, multicéntrico, entre noviembre de 2015 y abril de 2016. Se incluyeron consecutivamente sujetos de dos a 16 años de edad con indicación de cirugía adenoamigdalar y controles sanos. Los padres o tutores legales respondieron los cuestionarios T-14-s y s-TAHSI inicialmente, pasadas dos-seis semanas y a los seis meses de la cirugía. Se compararon las puntuaciones de T-14-s y s-TAHSI de toda la muestra globalmente, de los subgrupos de pacientes y controles por separado y, finalmente, del grupo de pacientes a los seis meses de la cirugía, mediante el coeficiente de correlación de Pearson. Se calculó la proporción de variabilidad compartida entre ambos test.ResultadosSe estudiaron 100 sujetos (50 pacientes y 50 controles). La correlación global que presentaron ambos cuestionarios fue muy alta (0,97), con un nivel de significación de p < 0,01. La proporción de variabilidad compartida fue muy elevada, del 94%. Los resultados se mantuvieron al comparar los cuestionarios en las subpoblaciones de casos y controles, así como los cuestionarios postoperatorios.ConclusiónLos cuestionarios de calidad de vida para pacientes pediátricos con patología adenoamigdalar, T-14-s y s-TAHSI, presentan una alta correlación que permite el uso equivalente de ambos en nuestro medio. (AU)

Introduction and objective: T-14 and TAHSI are validated and reliable specific questionnaires which measure the quality of life in paediatric patients with adenotonsillar disease. The present study aims to compare the adapted and validated versions in Spanish of these two questionnaires (T-14-s and s-TAHSI) in order to assess the preferential use of either of them in our environment.Material and MethodsA multicentre prospective cross-sectional study was carried out between November 2015 and April 2016, to determine the possible correlation between these two instruments. Subjects aged from 2 to 16 years with indication for adenotonsillar surgery and healthy controls, were consecutively included. Parents or caregivers of these children completed T-14-s and s-TAHSI questionnaires initially, after 2-6 weeks and at 6 months after surgery. T-14-s and s-TAHSI scores of the entire sample were compared globally, patient and control subgroups were compared separately and finally, compared in the group of patients at 6 months from surgery, using Pearson correlation coefficient. The proportion of variability shared between both tests was calculated.ResultsA hundred subjects (50 cases and 50 controls) were studied. The overall correlation presented by both questionnaires was very high (0.97) with a significance level of p < .01. The proportion of shared variability was 94%, very high. The results were maintained when comparing the questionnaires in the subpopulations of cases and controls, as well as the postoperative questionnaires.ConclusionQuality of life questionnaires for paediatric patients with adenotonsillar pathology, T-14-s and s-TAHSI, showed high correlation and allows the equivalent use of both in our environment. (AU)

Síndrome de apnea obstructiva del sueño persistente en niños adenoamigdalectomizados: artículo de revisión

Resumen El síndrome de apnea e hipoapnea obstructiva del sueño (SAHOS) en niños forma parte del espectro de trastornos respiratorios del sueño en la infancia. Tiene una prevalencia entre un 0,69% y 4,7% en la población infantil con una mayor incidencia entre los 2 y 6 años debido principalmente a la hiperplasia adenoamigdaliana y constituye una importante causa de morbilidad neurocognitiva y conductual en quienes lo padecen. El principal tratamiento quirúrgico del SAHOS infantil lo constituye la adenoamigdalectomía, cirugía que logra la resolución de los síntomas entre un 20% y 75% de los pacientes. Los pacientes con comorbilidades asociadas tales como obesidad, enfermedades neuromusculares y alteraciones craneofaciales, entre otras, tienen mayor riesgo de SAHOS persistente. En la presente revisión de la literatura abordaremos el diagnóstico, enfrentamiento, estudio y tratamiento del SAHOS persistente posadenoamigdalectomía en niños.

Abstract Obstructive sleep apnea syndrome (OSA) in children is part of the spectrum of respiratory sleep disorders in childhood. It has a prevalence between 0.69 and 4.7% in pediatric population, with a higher incidence between 2 and 6 years old, mainly due to adenotonsillar hyperpla-sia. OSA constitutes an important cause of neurocognitive and behavioral morbidity. The main surgical treatment for childhood OSA is adenotonsi-llectomy, which resolves symptoms in 20%-75% of patients. Patients with associated comorbidities such as obesity, neuromus-cular diseases, and craniofacial malformations are at higher risk of having persistent OSA. In this literature review, we will discuss the diagnosis, evaluation and treatment of persistent OSA after adenotonsillectomy in children.

Comparison of two specific quality of life questionnaires in a paediatric population with adenotonsillar disease. / Comparación de dos cuestionarios específicos de calidad de vida en población pediátrica con patología adenoamigdalar.

INTRODUCTION AND OBJECTIVE: T-14 and TAHSI are validated and reliable specific questionnaires which measure the quality of life in paediatric patients with adenotonsillar disease. The present study aims to compare the adapted and validated versions in Spanish of these two questionnaires (T-14-s and s-TAHSI) in order to assess the preferential use of either of them in our environment. MATERIAL AND METHODS: A multicentre prospective cross-sectional study was carried out between November 2015 and April 2016, to determine the possible correlation between these two instruments. Subjects aged from 2 to 16 years with indication for adenotonsillar surgery and healthy controls, were consecutively included. Parents or caregivers of these children completed T-14-s and s-TAHSI questionnaires initially, after 2-6 weeks and at 6 months after surgery. T-14-s and s-TAHSI scores of the entire sample were compared globally, patient and control subgroups were compared separately and finally, compared in the group of patients at 6 months from surgery, using Pearson correlation coefficient. The proportion of variability shared between both tests was calculated. RESULTS: A hundred subjects (50 cases and 50 controls) were studied. The overall correlation presented by both questionnaires was very high (0.97) with a significance level of p < .01. The proportion of shared variability was 94%, very high. The results were maintained when comparing the questionnaires in the subpopulations of cases and controls, as well as the postoperative questionnaires. CONCLUSION: Quality of life questionnaires for paediatric patients with adenotonsillar pathology, T-14-s and s-TAHSI, showed high correlation and allows the equivalent use of both in our environment.

Crescimento pôndero-estatural de crianças e adolescentes submetidos à adenoamigdalectomia / Weight and height growth of children and adolescents after adenoton sillectomy

Objetivo: documentar de forma sistemática o padrão de desenvolvimento pôndero-estatural de pacientes submetidos à adenoamigdalectomia. Métodos: coleta de dados secundários dos prontuários de pacientes atendidos no ambulatório de Otorrinolaringologia Pediátrica, antes e depois da cirurgia de adenoamigdalectomia. Resultados: de forma individual, os pacientes apresentaram elevação no escore Z e percentis das variáveis ao peso e a altura no período entre as análises. Especificamente em relação ao peso, a média antes do procedimento e quatro meses depois do procedimento foi, respectivamente, de 29,1 kg e 32,8 kg; no que diz respeito à altura, a média foi de 1,22 m e 1,25 m, respectivamente. Ao aplicar o Teste T de Student foi possível notar significância estatística para ambas as variáveis em estudo. Aspecto não percebido ao avaliar os indivíduos reunidos em grupos etários (pré-escolares, escolares e adolescentes). Conclusões: as crianças submetidas à adenoamigdalectomia apresentaram ganho pôndero-estatural após a cirurgia. A atuação cirúrgica diante do diagnóstico da hipertrofia e da hiperplasia das amígdalas e tonsila faríngea deve ser precoce, desde que haja indicação formal, a fim de evitar a manutenção do atraso no crescimento nesses pacientes.

Aims: to systematically document weight and height development in children after adenotonsillectomy. Methods: analysis of secondary data from the Pediatric Otorhinolaryngology clinic patient's medical records before and after adenotonsillectomy. Results: regarding weight, the average before the procedure and four months and the average after the procedure were, respectively, 29.1 kg and 32.8 kg; as regards height, the averages were 1.22 m and 1.25 m, respectively. By applying the Teste T de Student it was possible to notice statistical significance for both variables under study. Conclusions: children exhibited statistically significant weight and height gain after surgery. Surgical treatment should be performed early after the diagnosis of pharyngeal tonsil and tonsils hypertrophy and hyperplasia provided in case of a formal indication in order to avoid the maintenance growth retardation in these patients.

Complicaciones postoperatorias tras adenoamigdalectomía en 2 grupos de pacientes pediátricos: síndrome de apnea-hipopnea del sueño e infecciones de repetición / Postoperative complications after adenotonsillectomy in two paediatric groups: Obstructive sleep apnoea syndrome and recurrent tonsilitis

INTRODUCCIÓN Y OBJETIVOS: La adenoamigdalectomía es una cirugía indicada por amigdalitis recurrentes e igualmente por síndrome de apnea-hipopnea del sueño (SAHS). Es considerada segura y con pocas complicaciones. Así, en pacientes mayores de 3 años y sin comorbilidades no hay más complicaciones respiratorias (fuera del postoperatorio inmediato), por lo que no precisan la hospitalización rutinaria en la unidad de cuidados intensivos pediátricos, independientemente de la gravedad del SAHS. El objetivo de este estudio es reanalizar la situación, para comprobar que esta tendencia se mantiene, poniendo especial énfasis en menores de 3 años, subgrupo donde hay menos datos disponibles. MÉTODOS: Estudio retrospectivo observacional, incluyendo los niños adenoamigdalectomizados en nuestro centro durante 5 años. RESULTADOS: Se operaron 418 niños (56,7% por amigdalitis y 43,3% por SAHS). Solo 24 (5,7%) tuvieron complicaciones: un 1,2% vómitos, un 3,1% sangrados y un 1,4% complicaciones respiratorias. Estas últimas ocurrieron siempre en quirófano o recuperación postanestésica y más frecuentemente en SAHS grave, mientras que las amigdalitis tuvieron más sangrados (p = 0,046). No hay diferencias por edad (p = 0,174), aunque el subgrupo de menores de 3 años sigue siendo más pequeño. CONCLUSIONES: No encontramos diferencias en el porcentaje de complicaciones entre SAHS y amigdalitis. Las amigdalitis tienen más sangrados, y el SAHS grave más complicaciones respiratorias, pero siempre en el postoperatorio inmediato en nuestra serie. Estos datos apoyan la hipótesis previa de no ingresar rutinariamente en la unidad de cuidados intensivos pediátricos salvo en los casos anteriormente mencionados

INTRODUCTION AND OBJECTIVES: Adenotonsillectomy is a surgery to treat recurrent tonsillitis or obstructive sleep apnoea syndrome (OSAS). It is considered a safe procedure, with few complications. Moreover, patients over 3 years and without comorbidities do not present a higher rate of respiratory adverse events after the immediate postoperative period, and do not need systematic admission to a paediatric intensive care unit (PICU), regardless of their OSAS severity. The aim of this study is to reanalyse the situation, including patients under the age of 3 years, for whom there are fewer available data, to confirm that this trend has not changed. METHODS: A retrospective observational study was performed, including all adenotonsillectomised children in our hospital over 5 years. RESULTS: 418 adenotonsillectomised children were included, 56.7% due to recurrent tonsillitis, and 43.3% because of OSAS. Only 24 patients (5%7%) experienced adverse events, of whom 1.2% had vomiting, 3.1% bleeding, and 1.4% respiratory events. All the respiratory events occurred in the operating theatre or in the post-anaesthetic unit, most frequently in children with severe OSAS, while the tonsillitis group had more bleeding (P = .046). No differences in complications were observed according to age (P = 0.174), but the group of patients under three years was relatively small. CONCLUSIONS: No differences were found in the percentage of complications between the two groups. Although the OSAS group exhibited more respiratory events, these occurred in the immediate postoperative period; otherwise, there was a higher risk of bleeding in the tonsillitis group. These results support the findings indicating that routine PICU admission is not required for these patients

Postoperative complications after adenotonsillectomy in two paediatric groups: Obstructive sleep apnoea syndrome and recurrent tonsillitis. / Complicaciones postoperatorias tras adenoamigdalectomía en 2 grupos de pacientes pediátricos: síndrome de apnea-hipopnea del sueño e infecciones de repetición.

INTRODUCTION AND OBJECTIVES: Adenotonsillectomy is a surgery to treat recurrent tonsillitis or obstructive sleep apnoea syndrome (OSAS). It is considered a safe procedure, with few complications. Moreover, patients over 3 years and without comorbidities do not present a higher rate of respiratory adverse events after the immediate postoperative period, and do not need systematic admission to a paediatric intensive care unit (PICU), regardless of their OSAS severity. The aim of this study is to reanalyse the situation, including patients under the age of 3 years, for whom there are fewer available data, to confirm that this trend has not changed. METHODS: A retrospective observational study was performed, including all adenotonsillectomised children in our hospital over 5 years. RESULTS: 418 adenotonsillectomised children were included, 56.7% due to recurrent tonsillitis, and 43.3% because of OSAS. Only 24 patients (5%7%) experienced adverse events, of whom 1.2% had vomiting, 3.1% bleeding, and 1.4% respiratory events. All the respiratory events occurred in the operating theatre or in the post-anaesthetic unit, most frequently in children with severe OSAS, while the tonsillitis group had more bleeding (P=.046). No differences in complications were observed according to age (P=0.174), but the group of patients under three years was relatively small. CONCLUSIONS: No differences were found in the percentage of complications between the two groups. Although the OSAS group exhibited more respiratory events, these occurred in the immediate postoperative period; otherwise, there was a higher risk of bleeding in the tonsillitis group. These results support the findings indicating that routine PICU admission is not required for these patients.

Estenosis faríngea secundaria a adenoamigdalectomía: ¿cómo la resolvemos? / Pharyngeal stenosis secondary to adenotonsillectomy: how do we solve it?

RESUMEN La estenosis faríngea es una complicación muy poco frecuente de la adenoamigdalectomía. Consiste en un estrechamiento de la vía aerodigestiva superior secundaria a la adhesión parcial o total de las estructuras que componen la orofaringe producto de una disección extensa al realizar amigdalectomía. El objetivo de este trabajo es presentar tres casos clínicos tratamiento y correspondiente técnica quirúrgica. Se describen tres pacientes operados durante la edad preescolar de adenoamigdalectomía, que cursaron en el posoperatorio con estenosis faríngea. Todos presentaron roncopatía severa, respiración oral y resonancia hiponasal. La nasofibroscopía evidenció estrechez faríngea en distintos grados. A todos se les realizó resección del tejido cicatricial y faringoplastía con colgajo miomucoso y posterior rehabilitación con bulbo faríngeo. El uso de colgajos faríngeos posterior a la liberación de adherencias posadenoamigdalectomía permite aportar tejido sano a zonas cruentas, evitando la formación de nuevas adherencias y restituyendo la permeabilidad oronasal. El bulbo faríngeo es fundamental para mantener un apropiado lumen y manejo de la cicatrización en el posoperatorio. La técnica de colgajo faríngeo lateral, que interpone mucosa faríngea sana para la cobertura del lecho cruento, constituye una alternativa quirúrgica eficaz para resolver la estenosis faríngea posquirúrgica.

ABSTRACT Pharyngeal stenosis is a very rare complication of adenotonsillectomy. It is caused by a narrowing of the upper aerodigestive pathway secondary to the total or partial adhesion of the retropharyngeal structures as a result of extensive dissection during tonsillectomy. Our aim is to present three consecutive clinical cases of pharyngeal stenosis after adenotonsillectomy, discuss its treatment and corresponding surgical technique. We present three infants with adenotonsillectomy with postoperative pharyngeal stenosis. All had severe snoring, oral breathing and hyponasal resonance. The nasofibroscopy showed pharyngeal obliteration in several degrees. All patients underwent scar tissue resection and pharyngoplasty with myomucosal flap and subsequent use of pharyngeal bulb. The use of pharyngeal flaps after release of pharyngeal adhesions allows to provide healthy tissue to row areas, avoiding new postoperative adhesions and providing adequate oronasal permeability. The pharyngeal bulb is essential to maintain permeability and management of scarring in the postoperative period. The technique of lateral pharyngeal flap, which aims to interpose healthy pharyngeal mucosa to cover the bloody bed, is an effective therapeutic alternative to solve post-surgical pharyngeal stenosis.

Leucotrienos urinarios en pacientes pediátricos con trastorno respiratorio del sueño secundario a hiperplasia adenoamigdalina / Urinary leukotrienes in pediatric patients with sleep disordered breathing secondary to adenotonsillar hypertrophy

RESUMEN Introducción: El trastorno respiratorio del sueño (TRS) afecta al 2% a 3% de la población pediátrica, siendo la hiperplasia adenoamigdalina (HAA) su principal causa. Se ha observado un aumento en los niveles de leucotrienos excretados en orina (LTU) en estos pacientes, los cuales se correlacionarían con la severidad de la enfermedad. Objetivo: Determinar el nivel de LTU en niños con TRS e HAA antes y después de adenoamigdalectomía (AA), y en controles sanos. Correlacionar los niveles de LTU con los síntomas de TRS. Material y método: Estudio prospectivo. Se incluyeron pacientes con TRS e HAA (n =12) y controles sanos (n =12). Se determinó la concentración de LTU en ambos grupos de forma basal y un mes después de cirugía en el grupo con TRS. Resultados: No hubo diferencias en los niveles de LTU antes y después de AA. Tampoco existieron diferencias entre el grupo control y grupo TRS previo a la cirugía. No se encontró asociación entre LTU y la severidad de síntomas respiratorios. Conclusión: Los LTU no se encuentran elevados en pacientes con TRS e HAA, no disminuyen luego de AA y no se correlacionan con la severidad de los síntomas. La medición de LTU no sería una herramienta útil en la evaluación de pacientes con TRS. Nuevos estudios son necesarios para evaluar el rol de los leucotrienos en esta enfermedad.

ABSTRACT Introduction: Sleep disorder breathing (SDB) affects 2%-3% of the pediatric population, being adenotonsillar hyperplasia (ATH) its main cause. An increase in the levels of urinary leukotrienes (ULT) has been measured in these patients, which could be correlated with the severity of the disease. Aim: To determine the level of ULT in children with SDB and ATH before and after adenotonsillectomy, and healthy controls. To correlate the levels of ULT with symptoms of SDB. Material and method: prospective study. SDB and ATH patients (n =12) and healthy controls (n =12) were included. The concentration of ULT in both groups was determined, before surgery and after a month of surgery. Results: There were no differences in the levels of ULT before and after tonsillectomy in the studied group. There were also no differences between the control group and the SDB group. No association was observed between the level of ULT and the severity of respiratory symptoms. Conclusions: ULT are not elevated in patients with SDB and ATH and they do not decrease after adenotonsillectomy. ULT are not correlated with the severity of the symptoms of SDB. The measurement of ULT would not be a useful tool in the evaluation of patients with SDB. New studies are needed to assess the role of the role of leukotrienes in this disease.

Adenoamigdalectomia e o crescimento infantil - segundo marcadores biológicos e antropométricos / Adenoamigdalectomy and childhood growth - second biological and anthropometric markers

Adenoamigdalectomia é um procedimento realizado para a remoção das amígdalas e da adenoide, que é indicada para obstrução de vias aéreas superiores devido hipertrofia dessas estruturas. Com isso, o objetivo deste estudo é avaliar qual a influência da adenoamigdalectomia no crescimento de crianças com distúrbios respiratórios do sono, com base em marcadores bioquímicos e antropométricos. Pesquisa em bancos de dados virtuais MEDLINE (Medical Literature Analysis and Retrieval System on-line) acessado via PubMed e Scielo, com limites para idioma com os descritores "growth", "adenotonsillectomy", "sleep-disordered breathing" e "children". A pesquisa estendeu-se de agosto de 2015 a março de 2017. Foram considerados critérios de inclusão: artigos originais que avaliassem amostra de menores de 12 anos, submetidos à amigdalectomia diante do diagnóstico de distúrbio respiratório do sono e/ou hiperplasia/hipertrofia de amígdala e/ou adenóide. Foram selecionados 22 estudos. Observou-se que a adenoamigdalectomia é fator importante no crescimento pôndero-estatural em crianças com DRS, a curto e longo prazos. Existem ganhos significativos de peso, altura e em alguns casos, ocorrência de "catch-up" no crescimento. Há evidências da modificação da concentração sanguínea de mediadores químicos do crescimento (IGF-I e IGFBP-3) após a cirurgia. Adenoamigdalectomia promove ganhos de peso e altura, favorecendo o crescimento de crianças a ela submetidos.

Adenotonsillectomy (AT) is a procedure performed to remove the tonsils and adenoids, which is indicated when there is obstruction of the upper airway due to hypertrophy of these structures. Evaluate the influence of the AT on growth in children with sleep-disordered breathing, based on biochemical and anthropometric markers. Research in virtual databases Medline and SciELO, with limits of idiom with the descriptors "growth" , "adenotonsillectomy", "sleep -disordered breathing" and "children". The research extended from august 2015 to march 2017 were considered inclusion criteria: original articles that evaluated sample under 12 years who underwent tonsillectomy before the diagnosis of sleep-disordered breathing and/or hyperplasia/hypertrophy of tonsils and/or adenoids. 22 studies were selected. It was observed that adenotonsillectomy (AT) is an important factor in the weight and height development in children with SDB in the short and long term and observed significant gains in weight, height and in some cases, the occurrence of "catch-up" growth. There is even evidence of the change in concentration blood of the chemical mediators growth factor (IGF-I and IGFBP-3) after surgery. The adenotonsillectomy promotes gains in height and weight, and consequently growth in individuals subjected to it.