BACKGROUND: Few studies have looked at how decisions are made to withhold or to withdraw potentially life-sustaining treatments (LST) in paediatric nephrology. The aim of this work was to evaluate such practices in all nephrology centres in French-speaking European countries, so that guidelines could be discussed and drawn up by professionals. METHODS: We used semi-directed interviews to question health care professionals prospectively. We also retrospectively analysed the medical files of all children (n = 50) for whom a decision to withhold or to withdraw LST had been made in the last 5 years. The doctors (n = 31) who had been involved in the decision-making process were interviewed. RESULTS: All 31 of the French-speaking paediatric nephr...