Heterogeneidad de criterios en el diagnóstico de bronquiolitis aguda en España / Criteria heterogeneity in the diagnosis of acute bronchiolitis in Spain

Introducción: La bronquiolitis vírica aguda (BA) es una de las enfermedades respiratorias más frecuentes en los lactantes. Sin embargo, los criterios utilizados para su diagnóstico son heterogéneos e insuficientemente conocidos. Objetivo: Identificar los criterios de diagnóstico de BA empleados en España, tanto por expertos como por pediatras clínicos. Métodos: Estudio de metodología Delphi con expertos españoles en BA, buscando los puntos de consenso sobre el diagnóstico de BA. Posteriormente se realizó un estudio transversal mediante encuesta on-line dirigida a todos los pediatras españoles, contactados a través de mensajes de correo electrónico enviados por nueve sociedades científicas pediátricas. Se hizo análisis descriptivo y análisis factorial de los resultados de la encuesta, buscando si los criterios diagnósticos empleados se relacionaban con variables demográficas, geográficas o con la subespecialidad pediátrica. Resultados: Los 40 expertos participantes alcanzaron un consenso en muchos aspectos (primer episodio de dificultad respiratoria y aumento de la frecuencia respiratoria, diagnóstico en cualquier estación del año, y utilidad de la identificación de virus para el diagnóstico), pero manteniendo opiniones enfrentadas en cuestiones importantes como la edad máxima aceptable para el diagnóstico. A la encuesta on-line respondieron 1297 pediatras. Los criterios diagnósticos que aplican son heterogéneos y están fuertemente asociados con la subespecialidad pediátrica. Su acuerdo con el consenso de expertos y con estándares internacionales es muy bajo. Conclusiones: Los criterios usados en España para el diagnóstico de BA son heterogéneos. Esas diferencias pueden causar variabilidad en la práctica clínica en pacientes con BA

Introduction: Acute viral bronchiolitis (AB) is one of the most common respiratory diseases in infants. However, diagnostic criteria for AB are heterogeneous and not very well known. Objective: To identify the diagnostic criteria for AB used by experts and clinical paediatricians in Spain. Methods: Delphi study with Spanish AB experts, looking for the points of agreement about AB diagnosis. A subsequent cross-sectional study was conducted by means of an on-line questionnaire addressed to all Spanish paediatricians, reached through electronic mail messages sent by nine paediatric scientific societies. Descriptive and factorial analyses were carried out, looking for any association of diagnostic criteria with demographic or geographic variables, or with paediatric subspecialty. Results: Agreement was reached by 40 experts in many issues (first episode of respiratory distress and high respiratory frequency, diagnosis in any season of the year, and usefulness of virus identification in making diagnosis), but opposite views were maintained on key characteristics such as the maximum age for diagnosis. The on-line questionnaire was completed by 1297 paediatricians. Their diagnostic criteria were heterogeneous and strongly associated with their paediatric sub-specialty. Their agreement with the Spanish expert consensus and with international standards was very poor. Conclusions: Diagnostic criteria for AB in Spain are heterogeneous. These differences could cause variability in clinical practice with AB patients

Criteria heterogeneity in the diagnosis of acute bronchiolitis in Spain.

INTRODUCTION: Acute viral bronchiolitis (AB) is one of the most common respiratory diseases in infants. However, diagnostic criteria for AB are heterogeneous and not very well known. OBJECTIVE: To identify the diagnostic criteria for AB used by experts and clinical paediatricians in Spain. METHODS: Delphi study with Spanish AB experts, looking for the points of agreement about AB diagnosis. A subsequent cross-sectional study was conducted by means of an online questionnaire addressed to all Spanish paediatricians, reached through electronic mail messages sent by nine paediatric scientific societies. Descriptive and factorial analyses were carried out, looking for any association of diagnostic criteria with demographic or geographic variables, or with paediatric subspecialty. RESULTS: Agreement was reached by 40 experts in many issues (first episode of respiratory distress and high respiratory frequency, diagnosis in any season of the year, and usefulness of virus identification in making diagnosis), but opposite views were maintained on key characteristics such as the maximum age for diagnosis. The online questionnaire was completed by 1297 paediatricians. Their diagnostic criteria were heterogeneous and strongly associated with their paediatric sub-specialty. Their agreement with the Spanish expert consensus and with international standards was very poor. CONCLUSIONS: Diagnostic criteria for AB in Spain are heterogeneous. These differences could cause variability in clinical practice with AB patients.

INTRODUCCIÓN: La bronquiolitis vírica aguda (BA) es una de las enfermedades respiratorias más frecuentes en los lactantes. Sin embargo, los criterios utilizados para su diagnóstico son heterogéneos e insuficientemente conocidos. OBJETIVO: Identificar los criterios de diagnóstico de BA empleados en España, tanto por expertos como por pediatras clínicos. MÉTODOS: Estudio de metodología Delphi con expertos españoles en BA, buscando los puntos de consenso sobre el diagnóstico de BA. Posteriormente se realizó un estudio transversal mediante encuesta online dirigida a todos los pediatras españoles, contactados a través de mensajes de correo electrónico enviados por nueve sociedades científicas pediátricas. Se hizo análisis descriptivo y análisis factorial de los resultados de la encuesta, buscando si los criterios diagnósticos empleados se relacionaban con variables demográficas, geográficas o con la subespecialidad pediátrica. RESULTADOS: Los 40 expertos participantes alcanzaron un consenso en muchos aspectos (primer episodio de dificultad respiratoria y aumento de la frecuencia respiratoria, diagnóstico en cualquier estación del año, y utilidad de la identificación de virus para el diagnóstico), pero manteniendo opiniones enfrentadas en cuestiones importantes como la edad máxima aceptable para el diagnóstico. A la encuesta online respondieron 1297 pediatras. Los criterios diagnósticos que aplican son heterogéneos y están fuertemente asociados con la subespecialidad pediátrica. Su acuerdo con el consenso de expertos y con estándares internacionales es muy bajo. CONCLUSIONES: Los criterios usados en España para el diagnóstico de BA son heterogéneos. Esas diferencias pueden causar variabilidad en la práctica clínica en pacientes con BA.

[Criteria heterogeneity in the diagnosis of acute bronchiolitis in Spain]. / Heterogeneidad de criterios en el diagnóstico de bronquiolitis aguda en España.

INTRODUCTION: Acute viral bronchiolitis (AB) is one of the most common respiratory diseases in infants. However, diagnostic criteria for AB are heterogeneous and not very well known. OBJECTIVE: To identify the diagnostic criteria for AB used by experts and clinical paediatricians in Spain. METHODS: Delphi study with Spanish AB experts, looking for the points of agreement about AB diagnosis. A subsequent cross-sectional study was conducted by means of an on-line questionnaire addressed to all Spanish paediatricians, reached through electronic mail messages sent by nine paediatric scientific societies. Descriptive and factorial analyses were carried out, looking for any association of diagnostic criteria with demographic or geographic variables, or with paediatric subspecialty. RESULTS: Agreement was reached by 40 experts in many issues (first episode of respiratory distress and high respiratory frequency, diagnosis in any season of the year, and usefulness of virus identification in making diagnosis), but opposite views were maintained on key characteristics such as the maximum age for diagnosis. The on-line questionnaire was completed by 1297 paediatricians. Their diagnostic criteria were heterogeneous and strongly associated with their paediatric sub-specialty. Their agreement with the Spanish expert consensus and with international standards was very poor. CONCLUSIONS: Diagnostic criteria for AB in Spain are heterogeneous. These differences could cause variability in clinical practice with AB patients.

Looking beyond patients: Can parents' quality of life predict asthma control in children?

BACKGROUND: Social and family factors may influence the probability of achieving asthma control in children. Parents' quality of life has been insufficiently explored as a predictive factor linked to the probability of achieving disease control in asthmatic children. OBJECTIVE: Determine whether the parents' quality of life predicts medium-term asthma control in children. METHODS: Longitudinal study of children between 4 and 14 years of age, with active asthma. The parents' quality of life was evaluated using the specific IFABI-R instrument, in which scores were higher for poorer quality of life. Its association with asthma control measures in the child 16 weeks later was analyzed using multivariate methods, adjusting the effect for disease, child and family factors. RESULTS: The data from 452 children were analyzed (median age 9.6 years, 63.3% males). The parents' quality of life was predictive for asthma control; each point increase on the initial IFABI-R score was associated with an adjusted odds ratio (95% confidence interval) of 0.56 (0.37-0.86) for good control of asthma on the second visit, 2.58 (1.62-4.12) for asthma exacerbation, 2.12 (1.33-3.38) for an unscheduled visit to the doctor, and 2.46 (1.18-5.13) for going to the emergency room. The highest quartile for the IFABI-R score had a sensitivity of 34.5% and a specificity of 82.2% to predict poorly controlled asthma. CONCLUSIONS: Parents' poorer quality of life is related to poor, medium-term asthma control in children. Assessing the parents' quality of life could aid disease management decisions. Pediatr Pulmonol. 2016;51:670-677. © 2015 Wiley Periodicals, Inc.

Association between quality of life in parents and components of asthma control in children.

OBJECTIVE: Describe the association between parents' quality of life and the two components of asthma control in children: impairment and risk. METHODS: Cross-sectional study with children between 4 and 14 years of age with active asthma recruited at primary care centers in Spain. Asthma control was assessed according to the Third National Asthma Expert Panel Report, classifying "impairment" in three levels (well-controlled asthma, partially controlled, and poorly controlled), and "risk" as high or low. The parents' quality of life was evaluated using the specific Family Impact of Childhood Bronchial Asthma Questionnaire instrument (IFABI-R). The association between asthma control and the parents' quality of life was analyzed using multivariate regression models adjusted for other social and family variables. RESULTS: Data from 408 children were analyzed. The parents' quality of life was affected in the partially controlled asthma group when compared with well-controlled asthma, as showed by an increase in IFABI-R scores in all dimensions: functional 17.2% (p < 0.001), emotional 10.4% (p = 0.021), and socio-occupational 6.8% (p = 0.056). The differences were higher in poorly controlled asthma compared with well-controlled asthma: functional 24.3% (p = 0.001), emotional 18.9% (p = 0.008), and socio-occupational 11.5% (p = 0.036). The "risk" component was independently associated with the parents' quality of life. Of all the elements used to assess the control, the only one independently associated with the parents' quality of life was recurrent asthma crisis. CONCLUSIONS: In asthma control, both "impairment" and "risk" in children are gradually associated with the parents' quality of life. The global assessment of the control surpasses the importance of each individual element used in this assessment.

Prevalence of asthma symptoms in schoolchildren, and climate in west European countries: an ecologic study.

The aim of the present study was to estimate the associations between the prevalence of asthma symptoms in schoolchildren and meteorological variables in west European countries that participated in the International Study of Asthma and Allergies in Children (ISAAC), Phase III 1997-2003. An ecologic study was carried out. The prevalence of asthma was obtained from this study from 48 centers in 14 countries, and meteorological variables from those stations closest to ISAAC centers, together with other socioeconomic and health care variables. Multilevel mixed-effects linear regression models were used. For schoolchildren aged 6-7 years, the prevalence rate of asthma decreased with an increase in mean annual sunshine hours, showed a positive association with rainy weather, and warm temperature, and a negative one with relative humidity and physician density (PD). Current wheeze prevalence was stronger in autumn/winter seasons and decreased with increasing PD. Severe current wheeze decreased with PD. For schoolchildren aged 13-14 years, the prevalence rates of asthma and current wheeze increased with rainy weather, and these rates decreased with increased PD. Current wheeze, as measured by a video questionnaire, was inversely associated with sunny weather, and nurse density. Severe current wheeze prevalence was stronger during autumn/winter seasons, decreased with PD, and indoor chlorinated public swimming pool density, and increased with rainy weather. Meteorological factors, including sunny and rainy weather, and PD may have some effect on the prevalence rates of asthma symptoms in children from west European countries.

Influence of two different geo-climatic zones on the prevalence and time trends of asthma symptoms among Spanish adolescents and schoolchildren.

Few studies have focused on the long-term influence of the climate on the prevalence of asthma. The aim of this study is to establish the influence of geo-climatic conditions on the prevalence of asthma symptoms both in adolescents and schoolchildren, and to discover if this influence is associated with their time trends. Eight centres in Spain performed both ISAAC phases I (1994) and III (2002) in children 13-14 years old. Six of them also surveyed children 6-7 years old. For each age group and phase, about 3,000 children were surveyed per centre. This study examines the prevalence of current wheeze and severe current wheeze in two different geo-climatic zones, coast and plateau, considering their relative humidity and temperature range. In both age groups, the mean asthma prevalence on the coast, for phase I and III, was significantly higher than on the plateau. Living on the plateau was an independent protective factor for current wheeze and severe current wheeze for the two age groups. Within the coastal centres, the increase of the annual relative humidity was a statistical significant risk factor for current wheeze, the same trend existing for current severe wheeze. These effects were independent of the sex and of the phase of the study. The prevalence of asthma and severe asthma symptoms is more frequent on the coast of Spain as compared to the inner plateau. This finding was repeated both in 1994 and in 2002.