Efficacy of Direct CAtheterisation of the OMbilical Vein in Emergency Through Wharton's Jelly

Inclusion Criteria : * Full-term newborn (≥ 37 SA) * Newborn for whom a resuscitation decision has been taken. * Newborn in circulatory arrest, or in profound bradycardia \< 60 bpm, requiring an injection of adrenaline in the delivery room, the indication being established in accordance with the recommendations of the European Resuscitation Council 2021, after completion of the first stages of cardiopulmonary resuscitation, including the establishment of effective ventilation * Newborn beneficiary of a social security scheme or entitled person. Non-inclusion Criteria : * Newborn with known heart defects or other potentially lethal defects * Presence of a pre-existing access route * Paediatric resuscitator not trained to the UVW procedure * Twins born in circulatory arrest and requiring simultaneous management