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Background and Aims The aim of anaesthesia is patient and surgeon comfort, avoiding intraoperative memory and pain. OFA is a multimodal anaesthesia technique that provides adequate analgesia while avoiding the side effects of morphine. .In this context, a study was carried out using an OFA protocol in sub- umbilical and urogenital surgery in children using loco-regional anaesthesia as an alternative to morphine.

Methods Prospective study conducted in the pediatric surgery. This study included children proposed for a surgical procedure scheduled under general anesthesia. Perioperative analgesia by performing peripheral blocks and central blocks according to the type of surgery.

Results 82 children were included in the study, 90% of them were male, 42.5% of the children had a weight between 11kg and 15kg. 95% were classified as ASAI. The most common surgery was inguinal hernia in 17.5% followed by testicular ectopy. More than 2/3 of the children underwent outpatient procedures. Intravenous induction was done with propofol in 97.5% of cases at 3-5mg/kg. Laryngeal mask insertion was the upper airway management technique in 57.5%. Pudendal block was the most used technique in 27.5%. Maintenance was done for all children with 2-3% Sevoflurane. 82.5% of the children did not show a change in heart rate or major haemodynamic changes. Only 20% required anticipatory analgesia with Paracetamol. 42.5% of children had mild discomfort in the immediate postoperative period. No child presented with a complication of loco- regional anaesthesia.

Conclusions OFA in paediatric anesthesia allowing adequate analgesia while avoiding the side effects of opioids; respiratory distress which is increased in children, ileus postoperatively.