
Bronchopulmonary Dysplasia (BPD) is the most frequent complication of extreme prematurity and its frequency is still increasing, so our mission is to create a National Registry of the disease, and homogenize its definition. Also we will promote a better knowledge of BPD to improve prevention and therapy and research. To better assure this, we have created a national working group of neonatologists and pediatric pulmonologists with the backing of the Spanish Society of Neonatology (SENeo), the Spanish Society of Pediatric Pneumology (SENP) and the Spanish Society of Pneumology and Thoracic Surgery (SEPAR).