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Of the 70 protocol violations in the RA arm, 10 infants had a full GA with no awake-regional attempted, 37 had a full general anaesthetic after complete block failure, and 23 infants had a partly successful block requiring a short period of general anaesthesia or sedation. Participants who withdrew consent (n=1) or were randomised after surgery (n=2) were excluded from intention to treat analyses. GA= General Anesthesia; RA = Regional Anesthesia.
