Evaluación del conocimiento de la técnica de aerosol-terapia con aerocámara por el equipo de salud pediátrico / Pediatric health team's knowledge of the technique of aerosoltherapy with spacer

INTRODUCCIÓN: Los medicamentos inhalados son la base de la terapia para patologías respiratorias. La técnica inhalatoria es un factor condicionante de su éxito terapéutico. El error más frecuente en aerosolterapia es en la técnica y su principal consecuencia es la disminución de medicación que llega a la vía aérea. OBJETIVO: evaluar el conocimiento y el método de instrucción que tiene el equipo de salud pediátrico sobre la técnica de aerosolterapia con aerocámara para niños menores de 6 años. MATERIAL Y MÉTODO: estudio transversal, analítico. Se realizó una encuesta. Incluyó a profesionales de la salud que ejercen en el área pediátrica. Se realizó estadística descriptiva y comparativa. Se consideró significancia estadística p<0,05. RESULTADOS: Se incluyeron 71 profesionales. La técnica de aerosolterapia con aerocámara fue MUY BUENA en 15,49% (IC95% 8,8-25,65), BUENA en 70,42% (IC95% 58,98-79,77) y REGULAR en 14,08% (IC95% 7,83-24,02) profesionales. La mediana de pasos realizados correctamente fue de 5 de 7 pasos. La herramienta más utilizada para instruir sobre la técnica de aerosolterapia con aerocámara fue la "demostración". El 39,44% y el 21,13% de los profesionales utilizaron la combinación de 2 y 3 metodologías para la instrucción de la técnica, respectivamente. CONCLUSIONES: El conocimiento de la técnica de aerosolterapia del equipo de salud es bueno. La mayoría de los profesionales de la salud utilizó la demostración como herramienta de transmisión de la técnica de aerosolterapia. Más de la mitad de los profesionales combinaron herramientas para instruir sobre aerosolterapia. (AU)

INTRODUCTION: the basis treatment of respiratory diseases are inhaled medications. The inhalation technique is a conditioning factor of its therapeutic success. The most frequent error in aerosol therapy is in the technique and its main consequence is the decrease of medication that reaches the airway. OBJECTIVE: Evaluate the knowledge and method of instruction that the pediatric health team has on the aerosol therapy technique with spacer for children under 6 years. MATERIAL AND METHOD: cross-sectional, analytical study. A survey was conducted. It included health professionals who practice in the pediatric area. Descriptive and comparative statistics were performed. Statistical significance was set at p <0.05. RESULTS: We included 71 professionals. The aerosol therapy technique was very good in 15.49% (IC95% 8.8-25.65), good in 70.42% (IC95% 58.98-79.77) and regular in 14.08% (IC95% 7.83-24.02) professionals. The median of steps performed correctly was 5 of 7 steps. The most used tool to instruct the aerosol therapy technique was the "demonstration". The 39.44% and 21.13% of the professionals used the combination of 2 and 3 methodologies for the instruction of the technique, respectively. CONCLUSIONS: health team´s knowledge of the aerosol therapy technique is good. The most of health professionals used the demonstration as a transmission tool for the aerosol therapy technique. More than half of the professionals combined tools to instruct on aerosol therapy. (AU)

Subclinical lower airways correlates of chronic allergic and non-allergic rhinitis.

The upper and lower airways behave as a physiological and pathophysiological unit. Subclinical lower airways abnormalities have been described in patients with rhinitis without asthma. These are expressed as bronchial hyperreactivity, abnormalities in lung function and bronchial inflammation, likely as a result of the same phenomenon with systemic inflammatory impact that reaches both the nose and the lungs, which for unknown reasons does not always have a full clinical expression. Patients with rhinitis are at increased risk of developing asthma; therefore, most authors suggest a careful clinical evaluation and monitoring of these patients, especially if symptoms related to inflammation in the lower airways are observed. Although current treatments, such as H1-antihistamines, intranasal steroids and allergen immunotherapy, are quite effective for the management of rhinitis, it is difficult to prove their capacity to prevent asthma among subjects with rhinitis. Evidence showing that the treatment of rhinitis has a favourable impact on indicators of bronchial hyperreactivity and inflammation among subjects that have no symptoms of asthma is more frequently described. In this review, we address the frequency and characteristics of lower airway abnormalities in subjects with rhinitis, both in paediatric and adult populations, their likely predictive value for the development of asthma and the possibilities for therapeutic intervention that could modify the risk of subjects with rhinitis towards presenting asthma.

Mecanismos de la conexión nariz-pulmón / Mechanisms of nose-lung connection

La vía respiratoria, de la nariz al pulmón, actúa como un sincicio anátomo -funcional con su correlato fisiopatológico. Desde tiempos remotos los autores estudiaron los mecanismos de conexión entre la vía respiratoria superior e inferior que pudiera explicar la elevada coincidencia en la prevalencia de sus respectivas patologías. Algunos de esos mecanismos no se han podido demostrar fehacientemente y las investigaciones muestran resultados contradictorios. Otros responden a determinados fenotipos como el de la relación entre rinitis y asma alérgicas, el modelo más estudiado, en el que un fenómeno inflamatorio mediado a través del torrente circulatorio es el más aceptado. No obstante los fenotipos de enfermedad respiratoria no alérgica y el de la patología mediada por IgE local en nariz y bronquios, no tienen una conexión absolutamente resuelta por las investigaciones. En esta revisión discutiremos los distintos mecanismos de interacción nariz pulmón que por sus características anatómicas, fisiológicas y fisiopatológicas avalan la hipótesis de "una vía aérea única, una única enfermedad" aceptada en la actualidad por la mayoría de los autores. (AU)

The airway, from the nose to the lung, may be accepted as an anatomo-functional unit with its physiopathological correlate. From a long time ago the authors studied the mechanisms of connection between the upper and lower airway that could explain the high coincidence in the prevalence of their respective pathologies. Some of these mechanisms have not been proven conclusively and the research shows contradictory results. Others respond to certain phenotypes such as the relationship between rhinitis and allergic asthma, the most studied model, in which an inflammatory phenomenon mediated through the bloodstream is the most accepted. However the knowledge of phenotypes of non-allergic respiratory disease and the pathology mediated by local IgE in the nose and bronchi, they do not have a connection mechanisms completely determined by the investigations. In this review we will discuss the different mechanisms of nasal lung interaction that support its anatomical, physiological and pathophysiological characteristics responsible for "one airway, one disease" currently accepted by most authors. (AU)

Impact of rhinitis on lung function in children and adolescents without asthma.

BACKGROUND: Subclinical spirometric abnormalities may be detected in patients with rhinitis without asthma, proportional to the severity established by ARIA (Allergic Rhinitis and Its Impact on Asthma) guidelines. New criteria of rhinitis classification were recently validated according to the ARIA modified (m-ARIA), which allow the discrimination between moderate to severe grades. The impact of rhinitis on lung function according to frequency and severity is unknown. OBJECTIVES: To investigate subclinical spirometric impairment in children and adolescents with allergic and non-allergic rhinitis without overt symptoms of asthma, according to the frequency and severity criteria of rhinitis classified by m-ARIA. METHODS: An observational cross-sectional study, including children and adolescents aged 5-18 years with allergic and non-allergic rhinitis without asthma. We analysed the functional abnormalities and bronchodilator response with spirometry in relation to the grade of rhinitis established by m-ARIA using an adjusted logistic model. A value of p<0.05 was considered statistically significant. RESULTS: We studied 189 patients; 22.2% showed spirometric abnormalities. Patients with persistent rhinitis had greater impairment of lung function compared to intermittent grade (p=0.026). Lung functional impairment was more frequent in severe and moderate rhinitis than mild grade (p=0.005) and was independent of the atopic status to both frequency (p=0.157) and severity (p=0.538). There was no difference in bronchodilator reversibility between groups (p>0.05). CONCLUSIONS: Impaired lung function was associated with persistence and severity of rhinitis and there was no significant difference between patients with moderate and severe rhinitis. The spirometric abnormality was demonstrated in patients with allergic and non-allergic rhinitis.

Evaluación del conocimiento de los padres de la técnica de aerosolterapia con aerocámara / Evaluation of parental knowledge of the aerosol technique with holding chamber

Introducción. Los episodios de tos, disnea y sibilancias son causa frecuente de consulta pediátrica. Su tratamiento de elección es la administración de fármacos a través de la aerosolterapia. El éxito de esta estrategia depende de la correcta aplicación de la técnica inhalatoria. Objetivo. Evaluar el conocimiento de padres de niños con patología obstructiva recurrente de la vía aérea en el uso de la aerosolterapia con aerocámara. Población y métodos. Estudio transversal, observacional, descriptivo. Se incluyeron aleatoriamente padres de niños menores de 6 años con tos, disnea y/o sibilancias con antecedentes de uso de aerocámara en la consulta al Servicio de Pediatría y/o de Alergia e Inmunología. Se evaluó el conocimiento en el empleo del inhalador mediante observación de la técnica. Resultados. Se incluyeron 114 niños, 51% masculino, con una edad promedio de 29,23 meses (DE=18,30). La persona a cargo de realizar la aerosolterapia tenía una media de edad de 32,28 años (DE=5,29); la mayoría de los responsables evaluados fueron madres (92,98%), con nivel de educación superior (71,05%). La forma de aprendizaje de la técnica fue demostrativa visual en 62 casos (54,4%), y el principal instructor de la misma fue el pediatra. Se demostró que 68 (72%) padres no realizaban en forma correcta la técnica y se encontró asociación entre edad del paciente y la correcta realización de la aerosolterapia (r=0,21; p=0,03). Conclusión. La mayoría de los padres realizan la aerosolterapia de forma incorrecta y la edad del niño influye en la técnica de la terapia inhalatoria.(AU)

Introduction. Symptoms of cough, dyspnea and wheezing are common cause for medical consultation. Their treatment is the administration of drugs through the aerosol. The success of this strategy depends on the correct application of inhalation technique. Objective. To evaluate the knowledge of parents of children with recurrent obstructive airway disease in the use of aerosol therapy with valved holding chamber. Population and Methods. Cross-sectional, observational, descriptive study. Randomly included parents of children under six years with cough, dyspnea and / or wheezing with a background of use in the office holding chamber of Pediatric and / or of Allergy and Immunology section of an Hospital. We evaluated the knowledge about the inhaler technique by medical observation. Results. We included 114 children, 51% male, with an average age of 29.23 months (SD=18.30). The median age o the caregiver responsible for conducting the aerosol therapy was 32.28 years (SD=5.29); the majority of evaluated makers were mothers (92.98%) with higher education level (71.05%). The most frequent way for learning was the visual demonstration technique in 62 cases (54.4%), and the main instructor was the pediatrician. Sixty-eight (72%) of parents did not perform properly the inhalation technique and a positive association was found between patient age and the proper realization of the aerosol (r=0.21; P=0.03). Conclusion. Most parents perform incorrectly aerosol therapy with valved holding chamber and the child's age influences the inhalation technique.(AU)