Objective: To develop a consensus management pathway for children with Paediatric Inflammatory Multisystem Syndrome - Temporally associated with SARS-CoV-2 (PIMS-TS). Design: A three-phase online Delphi process and virtual consensus meeting sought consensus over the investigation, management and research priorities from 98 multidisciplinary participants caring for children with PIMS-TS. 46 participants (47%) completed all three phases. Participants were grouped into three panels and scored each statement from 1 (disagree) to 9 (strongly agree). In phase two participants were shown their panels scores, and in phase three all panels scores. Consensus agreement was defined as [&ge;]70% of participants in each panel scoring the statement 7-9, and <15% scoring 1-3, and consensus disagreement was the opposite of this. Statements which achieved consensus in 2/3 panels were discussed at the consensus meeting, and when [&ge;]70% participants agreed with the statement it achieved consensus. Results: 255 statements were assessed, with consensus agreement achieved for 111 (44%), consensus disagreement for 29 (11%), and no consensus for 115 (45%). The 140 consensus statements were used to derive the consensus management pathway. Conclusions: A national consensus pathway has been developed for children suspected of having the novel syndrome PIMS-TS in a timely, cost-efficient manner, in the midst of a global pandemic. Use of a rapid online Delphi process has made this consensus process possible. Future evidence will inform updates to this guidance, which in the interim provides a solid framework to support clinicians caring for children with PIMS-TS.

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