Our unit is a 12-bed tertiary care university hospital pediatric intensive care unit. Recruitment is both medical and surgical. NAVA has been used in our unit for weaning children from a respirator who were operated * Correspondence: jeanmichel.liet@chu-nantes.fr † Contributed equally 1 Unité de Réanimation Pédiatrique, Hôpital Mère-Enfant Faïencerie, CHU de Nantes, 38 Boulevard Jean-Monnet, 44093 Nantes, France Full list of author information is available at the end of the article on for congenital heart disease. The effectiveness of NAVA in these children led us to gradually expand the indications. We report a series of 3 children with severe respiratory distress due to RSV bronchiolitis for whom NAVA was used. The local ethics committee (groupe nantais d'éthique dans le domaine de la santé [GNEDS]) considered our report as non-interventional data research. The parents of all three children gave their written consent for publication. Starting NAVA requires the initial correct positioning of the "NAVA" gastric tube. This commercially available feeding tube equipped with sensors (Edi catheter, Maquet Critical Care, Solna, Sweden) permits the recording of electrical activity of the diaphragm (Edi) via a Servo-I Ventilator (Maquet Critical Care, Solna, Sweden) using a standardized method [4] . Settings are relatively simple and include positive end-expiratory pressure (PEEP), fraction of inspired oxygen (FiO 2 ), and level of NAVA assistance.