Transition of Adolescents With Severe Asthma From Pediatric to Adult Care in Spain: The STAR Consensus.

OBJECTIVES: To assess the degree of consensus among a multidisciplinary expert panel on the transition of adolescents with severe asthma from pediatric to adult care. METHODS: A 61-item survey was developed based on guidelines for other chronic diseases, covering transition planning, preparation, effective transfer, and follow-up. A 2-round Delphi process assessed the degree of consensus among 98 experts (49 pediatricians, 24 allergists, and 25 pulmonologists). Consensus was established with ≥70% agreement. RESULTS: Consensus was reached for 42 items (70%). Panelists were unable to agree on an age range for initiation of transition. The main goal during the transition identified by the experts is for adolescents to gain autonomy in managing severe asthma and prescribed treatments. The panelists agreed on the importance of developing an individualized plan, promoting patient autonomy, and identifying factors associated with the home environment. They agreed that the adult health care team should have expertise in severe asthma, biologics, and management of adolescent patients. Pediatric and adult health care teams should share clinical information, agree on the criteria for maintaining biological therapy, and have an on-site joint visit with the patient before the effective transfer. Adult health care professionals should closely follow the patient after the effective transfer to ensure correct inhaler technique, adherence, and attendance at health care appointments. CONCLUSION: This consensus document provides the first roadmap for Spanish pediatric and adult teams to ensure that key aspects of the transition process in severe asthma are covered. The implementation of these recommendations will improve the quality of care offered to the patient.

Transition of Adolescents With Severe Asthma From Pediatric to Adult Care in Spain: The STAR Consensus

Objective: To assess the degree of consensus among a multidisciplinary expert panel on the transition of adolescents with severe asthma from pediatric to adult care. Methods: A 61-item survey was developed based on guidelines for other chronic diseases, covering transition planning, preparation, effective transfer, and follow-up. A 2-round Delphi process assessed the degree of consensus among 98 experts (49 pediatricians, 24 allergists, and 25 pulmonologists). Consensus was established with ≥70% agreement. Results: Consensus was reached for 42 items (70%). Panelists were unable to agree on an age range for initiation of transition. The main goal during the transition identified by the experts is for adolescents to gain autonomy in managing severe asthma and prescribed treatments. The panelists agreed on the importance of developing an individualized plan, promoting patient autonomy, and identifying factors associated with the home environment. They agreed that the adult health care team should have expertise in severe asthma, biologics, and management of adolescent patients. Pediatric and adult health care teams should share clinical information, agree on the criteria for maintaining biological therapy, and have an on-site joint visit with the patient before the effective transfer. Adult health care professionals should closely follow the patient after the effective transfer to ensure correct inhaler technique, adherence, and attendance at health care appointments. Conclusions: This consensus document provides the first roadmap for Spanish pediatric and adult teams to ensure that key aspects of the transition process in severe asthma are covered. The implementation of these recommendations will improve the quality of care offered to the patient (AU)

Objetivo: Evaluar el grado de consenso con un panel multidisciplinar de expertos sobre la transición del adolescente con asma grave de los servicios de pediatría a atención de adultos. Métodos: Se elaboró un cuestionario de 61 ítems basado en recomendaciones de transición para otras patologías crónicas, abarcando la planificación de la transición, preparación, transferencia efectiva y seguimiento. Se evaluó el nivel de consenso entre 98 expertos (49 pediatras, 24 alergólogos y 25 neumólogos) mediante un proceso Delphi de dos rondas. El consenso se estableció con un acuerdo ≥70%. Resultados: Cuarenta y dos ítems (70%) alcanzaron consenso. Los panelistas no alcanzaron consenso en el rango de edad para iniciar la transición. El principal objetivo a conseguir durante la transición según los expertos fue que el adolescente gane autonomía en el manejodel asma grave y tratamientos prescritos. Asimismo, alcanzaron acuerdo en la importancia de desarrollar un plan individualizado, promover la autonomía del paciente e identificar los factores clave en el entorno familiar. Los especialistas de adultos deben tener experiencia en asma grave y tratamientos biológicos, así como en el manejo de pacientes adolescentes. Los equipos sanitarios de pediatría y de adultos deben compartir la información clínica, consensuar los criterios para mantener la terapia biológica y realizar una visita conjunta con el paciente antes de la transferencia. Los especialistas de adultos deben realizar un seguimiento estrecho del paciente tras la transferencia para asegurar una correcta técnica inhalatoria, el cumplimiento del tratamiento y la asistencia a las citas sanitarias. Conclusiones: Este documento de consenso proporciona la primera hoja de ruta en España para que los equipos especialistas de pediatría y adultos garanticen aspectos clave del proceso de transición en pacientes adolescentes con asma grave. La aplicación de estas (AU)

[Body plethysmography (I): Standardisation and quality criteria]. / Pletismografía corporal (I): estandarización y criterios de calidad.

Whole body plethysmography is used to measure lung volumes, capacities and resistances. It is a well standardised technique, and although it is widely used in paediatric chest diseases units, it requires specific equipment, specialist staff, and some cooperation by the patient. Plethysmography uses Boyle's law in order to measure the intrathoracic gas volume or functional residual capacity, and once this is determined, the residual volume and total lung capacity is extrapolated. The measurement of total lung capacity is necessary for the diagnosis of restrictive diseases. Airway resistance is a measurement of obstruction, with the total resistance being able to be measured, which includes chest wall, lung tissue and airway resistance, as well as the specific airway resistance, which is a more stable parameter that is determined by multiplying the measured values of airway resistance and functional residual capacity. The complexity of this technique, the reference equations, the differences in the equipment and their variability, and the conditions in which it is performed, has led to the need for its standardisation. Throughout this article, the practical aspects of plethysmography are analysed, specifying recommendations for performing it, its systematic calibration and the calculations that must be made, as well as the interpretation of the results obtained. The aim of this article is to provide a better understanding of the principles of whole body plethysmography with the aim of optimising the interpretation of the results, leading to improved management of the patient, as well as a consensus among the speciality.

Monitorización del tratamiento en el asma bronquial mediante determinación de fracción exhalada de óxido nítrico, eosinófilos y leucotrieno B4 en esputo inducido de población infantil / Determining asthma treatment in children by monitoring fractional exhaled nitric oxide, sputum eosinophils and leukotriene B4

Los eosinófilos en esputo inducido y la fracción exhalada de óxido nítrico (FENO) constituyen marcadores de inflamación en el asma, producida por citocinas, cisteinil-leucotrienos y leucotrieno B4 (LTB4). El objetivo de este trabajo es determinar su utilidad en la monitorización del tratamiento del asma en niños. Se realizó determinación de FENO, eosinófilos y LTB4 en esputo inducido a 10 niños (9-15 años) asmáticos y 4 meses después, tras iniciar o incrementar el tratamiento de base, se volvieron a repetir las mismas determinaciones. Se apreció una tendencia a la disminución de los valores de la FENO (p = 0,15), una mejoría de la función pulmonar (p = 0,10) y una disminución significativa del porcentaje de eosinófilos (p = 0,003) respecto a la determinación basal. No hubo diferencias en la concentración de LTB4 (p = 0,88). El recuento de eosinófilos en esputo parece una determinación más precisa para el seguimiento de la inflamación en los niños asmáticos que la FEno

Sputum eosinophils and exhaled fractional nitric oxide (FENO) are markers of airway inflammation in asthma. Cytokines, cysteinyl-leukotrienes and leukotriene B4 (LTB4) are responsible for this inflammation.The aim of this study is to determine the usefulness of these markers in monitoring asthma treatment in children.FENO, sputum eosinophils, and LTB4 in induced sputum were performed in 10 children (9-15 years old). These determinations were repeated four months later, after the beginning oran increase in the treatment. FENO values tended to decrease (P=.15), pulmonary function tended to improve (P=.10), and sputum eosinophils decreased (P=.003) compared to the first determination. There were no differences in LTB4 concentrations (P=.88). Sputum eosinophils seem to be more precise than FENO in the monitoring of inflammation inasthmatic children

[Measurement of CO diffusion capacity (II): Standardization and quality criteria]. / Medición de la difusión de CO (II): estandarización y criterios de calidad.

The diffusion capacity is the technique that measures the ability of the respiratory system for gas exchange, thus allowing a diagnosis of the malfunction of the alveolar-capillary unit. The most important parameter to assess is the CO diffusion capacity (DLCO). New methods are currently being used to measure the diffusion using nitric oxide (NO). There are other methods for measuring diffusion, although in this article the single breath technique is mainly referred to, as it is the most widely used and best standardized. Its complexity, its reference equations, differences in equipment, inter-patient variability and conditions in which the DLCO is performed, lead to a wide inter-laboratory variability, although its standardization makes this a more reliable and reproductive method. The practical aspects of the technique are analyzed, by specifying the recommendations to carry out a suitable procedure, the calibration routine, calculations and adjustments. Clinical applications are also discussed. An increase in the transfer of CO occurs in diseases in which there is an increased volume of blood in the pulmonary capillaries, such as in the polycythemia and pulmonary hemorrhage. There is a decrease in DLCO in patients with alveolar volume reduction or diffusion defects, either by altered alveolar-capillary membrane (interstitial diseases) or decreased volume of blood in the pulmonary capillaries (pulmonary embolism or primary pulmonary hypertension). Other causes of decreased or increased DLCO are also highlighted.

[Determining asthma treatment in children by monitoring fractional exhaled nitric oxide, sputum eosinophils and leukotriene B4]. / Monitorización del tratamiento en el asma bronquial mediante determinación de fracción exhalada de óxido nítrico, eosinófilos y leucotrieno B4 en esputo inducido de población infantil.

Sputum eosinophils and exhaled fractional nitric oxide (FENO) are markers of airway inflammation in asthma. Cytokines, cysteinyl-leukotrienes and leukotriene B4 (LTB4) are responsible for this inflammation. The aim of this study is to determine the usefulness of these markers in monitoring asthma treatment in children. FENO, sputum eosinophils, and LTB4 in induced sputum were performed in 10 children (9-15 years old). These determinations were repeated four months later, after the beginning or an increase in the treatment. FENO values tended to decrease (P=.15), pulmonary function tended to improve (P=.10), and sputum eosinophils decreased (P=.003) compared to the first determination. There were no differences in LTB4 concentrations (P=.88). Sputum eosinophils seem to be more precise than FENO in the monitoring of inflammation in asthmatic children.

Trasplante pediátrico pulmonar / Pediatric lung transplantation

El trasplante pulmonar constituye la última alternativa para los niños con una enfermedad pulmonar terminal cuando se han agotado todo los recursos terapéuticos. En las dos últimas décadas se ha experimentado una vance consideable en la supervivencia de lso niños trasplantados de pulmón, por las mejoras en la técnica del trasplante, la preervación de los órganos, el manejo perioperatorio y la inmunosupresión. El programa de trasplatne pulmonar pediátrico en el Hospital Universitari Vall d´Hebron se inició en el año 1996. En nuestro hospital se han realizado 672 trasplantes entre los años 1990 y 2012, de los que 51 (7,6%) corresponde a trasplantes pediátricos (menores de 18 años). La indicación más frecuente para el trasplante en los iños es la fibrosis quística. En nuestro centro, la fibrosis quística ha representado solo el 8,7% de los traplantes realizados enmenores de 11 años y el 86% de los realizados entre 12 y 17 años. Los otros grupos importantes de indicaciones los constituyen las enfermedades vasculares pulmonares (hipertensión pulmonar) y las neumopatías intersticiales crónicas. La superviviencia de los niños trasplantados en nuestro entro es similar a la reflejada en el registro internacional: 55% a los 5 años y 47% a los 7 años (AU)

Lung trasplantation has become an accepted therapeutic option for children with end-stage lung disease. Advances have been made over the last 2 decades in lung transplantation concerning the procurement and presevation of donor lung, surgical techniques, early post-operative care and immunosuppression. The pediatric lung transplant program at Hospital Universitari Vall d´Heborn was started in 1996. A total of 672 lung tansplants have been performed in our hospital since 1990, with 51 (7.6%) corresponding to children (younger than 18 years). Cystic fibrosis is the leading cause for pediatric patients to requere lung transplantation. In our hospital cystic fibrosis represent only 8.7% of lung transplants in children less tha 11 years-old, but 86% in children 12-17 years old. Other important indications for lung trnasplantation in children are pediatric forms of interstitial lung dieases and pulmonary vascular disorders (mainly pulmonary hypertension). Actuarial survival is our center (55% at 5 years and 47% at 7 years) is similar to survival published in the International Registry (AU)

[Sputum induction in children: Technical development]. / Inducción de esputo en niños: desarrollo técnico.

OBJECTIVE: To compare low and high flow nebulizers performance (total of samples) and its side effects on sputum induction in asthmatic children. PATIENTS AND METHODS: Sputum induction was performed by inhalation of a hypertonic saline solution at increasing concentrations (3%, 4% and 5%) using low flow (OMRON NE-U07; flow rate 1ml/min), or high flow (OMRON NE-U12; flow rate 3ml/min, and DeVilbiss Ultraneb 3000; flow rate 2.5ml/min) ultrasonic nebulizers. RESULTS: We performed 49 inductions in 49 patients from 7 to 15 years old (in 15 children we used a low flow nebulizer (Omron NE-U07) and in 34 children a high flow nebulizer (OMRON NEU12, 6 patients, and DeVilbiss Ultraneb 3000, 28 patients). We obtained 37 samples of which 36 had less than 20% of squamous cells, and 26 had a viability > or =60%. The test performance was higher with high-flow nebulizers, obtaining 85.3% of samples compared to 53% (p=0.04). A total of 69% of samples obtained with the high flow nebulizer were valid, compared to 62.5% (p=0.7) with the low flow nebulizers. With high flow rate nebulizers the incidence of cough (17.6%, p=0.08) and itchy eyes (0%, p=0.02) decreased with the low flow nebulizer (47% and 20% respectively), but bad taste (82.3%, p <0.001) and salivation (14.7%, p=0.3) increased. CONCLUSIONS: With high flow rate ultrasonic nebulizers we obtain a higher performance of the technique without an increase in significant side effects.