Oral corticosteroids and asthma in children: Practical considerations.

Corticosteroids (CS) are among the most prescribed drugs in pediatrics. In allergy, CS are prescribed for several different conditions. If CS show clear benefits when adequately prescribed, CS are also associated with several side effects, well known by pediatricians. As for asthma exacerbations, the oral route is always the preferred one in pediatrics. Several authors debated if the use of a single dose of dexamethasone is better in terms of efficacy, compared with a 3- to 5-day course of prednisone or prednisolone. Another interesting issue that has not been fully clarified concerns whether oral corticosteroids should be prescribed in preschoolers presenting with acute wheezing. The present review aims to review the most recent publications on this topic and to try to clarify which may be the best option in children suffering from asthma exacerbations.

Sensitivity of FEV1 and Clinical Parameters in Children With a Suspected Asthma Diagnosis.

BACKGROUND: Asthma is the most common chronic disease in children and a robust diagnosis is crucial to optimize patient care and reduce its burden. To diagnose asthma in children, the Global Initiative for Asthma (GINA) recommendations propose a 12% improvement in forced expiratory volume in 1 second (FEV1) after a bronchodilation test. Nevertheless, such a criterion is rarely confirmed in these patients in clinical practice. OBJECTIVE: The objective of this study was to evaluate the sensitivity of spirometric and clinical parameters in identifying children with possible asthma. METHODS: The VERI-VEMS Study is a multicenter international retrospective cohort study. Data were collected, from January 2008 until January 2019, for all consecutive children (aged 5-18 years), with a diagnosis of asthma, who performed a spirometry at the time of the diagnosis. We compared the sensitivity of the reversibility criterion proposed by GINA guidelines, with other spirometric and clinical variables, using physician-diagnosed asthma and response to treatment as the standard. RESULTS: The study included 871 children. The reversibility criterion of 12% of FEV1 showed a sensitivity of 30.4%. The 3 best spirometric or clinical criteria were the presence of dry cough, or wheezing or atopy and dry cough, or wheezing or exercise-induced dyspnea, with a sensitivity reaching 99.5%, with no added value of the spirometric parameters in the calculation of the cumulated sensitivity for the diagnosis of pediatric asthma. CONCLUSIONS: Postbronchodilator reversibility of 12%, although essential for patients' follow-up, has an insufficient low sensitivity in reaching a diagnosis of asthma in pediatric patients, compared with a combination of clinical symptoms, that show a better sensitivity. Further studies on specificity will help clarify the role of this change in the diagnostic paradigm in formally diagnosing children with asthma.