RT Journal Article SR Electronic T1 European protocols for the diagnosis and initial treatment of interstitial lung disease in children JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 1078 OP 1084 DO 10.1136/thoraxjnl-2015-207349 VO 70 IS 11 A1 Bush, Andrew A1 Cunningham, Steve A1 de Blic, Jacques A1 Barbato, Angelo A1 Clement, Annick A1 Epaud, Ralph A1 Hengst, Meike A1 Kiper, Nural A1 Nicholson, Andrew G A1 Wetzke, Martin A1 Snijders, Deborah A1 Schwerk, Nicolaus A1 Griese, Matthias A1 , YR 2015 UL http://thorax.bmj.com/content/70/11/1078.abstract AB Interstitial lung disease in children (chILD) is rare, and most centres will only see a few cases/year. There are numerous possible underlying diagnoses, with specific and non-specific treatment possibilities. The chILD-EU collaboration has brought together centres from across Europe to advance understanding of these considerations, and as part of this process, has created standard operating procedures and protocols for the investigation of chILD. Where established consensus documents exist already, for example, for the performance of bronchoalveolar lavage and processing of lung biopsies, these have been adopted. This manuscript reports our proposals for a staged investigation of chILD, starting from when the condition is suspected to defining the diagnosis, using pathways dependent on the clinical condition and the degree of illness of the child. These include the performance of genetic testing, echocardiography, high-resolution CT, bronchoscopy when appropriate and the definitive investigation of lung biopsy, in order to establish a precise diagnosis. Since no randomised controlled trials of treatment have ever been performed, we also report a Delphi consensus process to try to harmonise treatment protocols such as the use of intravenous and oral corticosteroids, and add-on therapies such as hydroxychloroquine and azithromycin. The aim is not to dictate to clinicians when a therapeutic trial should be performed, but to offer the possibility to collaborators of having a unified approach when a decision to treat has been made.