Arthur was born prematurely at 27 weeks of amenorrhea. At two and a half years old, his neonatal pediatrician sent him to us, to evaluate and care for already strong signs of autism. During the first sessions with Arthur, we noted the precarious conditions and isolation of the family, as well as the parental weakness. Arthur’s story shows how essential it is for specialists from different fields to collaborate in order to properly treat premature babies. Applying the préaut procedure to premature babies within the neonatal department reinforced the teams’ awareness of observing the baby’s capacity to interact. Pediatricians and child psychiatrists held meetings to exchange and compare views. These exchanges allow early detection and tracking of “high-risk infans” and help diversified prospects in families’ care and child’s therapy.