RT Journal Article SR Electronic T1 Assessment of problematic severe asthma in children JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 432 OP 440 DO 10.1183/09031936.00091410 VO 37 IS 2 A1 K.C. Lødrup Carlsen A1 G. Hedlin A1 A. Bush A1 G. Wennergren A1 F.M. de Benedictis A1 J.C. De Jongste A1 E. Baraldi A1 C. Pedroletti A1 A. Barbato A1 K. Malmström A1 P. Pohunek A1 S. Pedersen A1 G.L. Piacentini A1 R.J.M. Middelveld A1 K.H. Carlsen YR 2011 UL http://erj.ersjournals.com/content/37/2/432.abstract AB Assessment of problematic severe asthma in children should be performed in a step-wise manner to ensure an optimal approach. A four-step assessment scheme is proposed. First, a full diagnostic work-up is performed to exclude other diseases which mimic asthma. Secondly, a multi-disciplinary assessment is performed to identify issues that may need attention, including comorbidities. Thirdly, the pattern of inflammation is assessed, and finally steroid responsiveness is documented. Based upon these four steps an optimal individualised treatment plan is developed. In this article the many gaps in our current knowledge in all these steps are highlighted, and recommendations for current clinical practice and future research are made. The lack of good data and the heterogeneity of problematic severe asthma still limit our ability to optimise the management on an individual basis in this small, but challenging group of patients.