RT Journal Article SR Electronic T1 EP204 A prospective double-blinded randomized control trial comparing erector spinae plane block to spinal analgesia for postoperative pain in lung hydatid cyst peadiatric surgery JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP A151 OP A151 DO 10.1136/rapm-2023-ESRA.265 VO 48 IS Suppl 1 A1 Mansour, Maha Ben A1 Trimech, Imen A1 Koobaa, Ines A1 Sammari, Sarra A1 Youssef, Sabrine Ben A1 Mama, Nadine A1 Chakroun, Sawsen A1 Gahbiche, Mourad YR 2023 UL http://rapm.bmj.com/content/48/Suppl_1/A151.2.abstract AB Background and Aims Lung hydatid cyst surgery causes considerable postoperative pain, and it can lead to postoperative pulmonary problems particularly in children . The erector spinae plane (ESP) block is a recently described , is simple to perform, and numerous studies have established the analgesic efficacy of ESP block in a variety of therapeutic settings. To compare the analgesic efficacies of erector spinae plane (ESP) block and spinal analgesia (SA) in lung hydatid cyct (LHC) of peadiatric surgeryMethods eighty patients undergoing LHC, divided into two groups: group SA (had morphine spinal analgesia at a dose 3 micogramme/kg) and group ESP (patients had an ultrasound-guided ESP block at the end of surgery with 0.3 ml/kg Ropivacaine). The primary outcome was to compare pain scores at rest 24 h postoperatively between the 2 groups. Secondary outcomes included post operative FLACC scores for 48 h, procedural time, use of rescue medication, adverse events, and parental satisfactionResults Patients with ESP block had a better FLACC score than those with SA but no statistical difference at a specific time. Cumulative Paracetamol consumption was higher in the ESP block group (p=0.047). The incidence of overall adverse events in the SA group was higher than in the ESP block group (p=0.045).Conclusions Erector spinae plane block may be inferior to SA for analgesia following LHC, but it could have tolerable analgesia and a better side effect profile than SA. Therefore, it could be an alternative to SA or thoracic epidural analgesia as a component of multimodal analgesia in children population.