S Bupivacaine/levobupivacaine Subdural haematoma: 2 case reportsIn a report, a 20-week-old boy and a male infant [age at reaction onset not clearly stated] developed subdural haematoma (SDH) following administration of levobupivacaine and bupivacaine, respectively [routes not stated].Case 1, the 6-week-old boy underwent bilateral inguinal hernia repair under spinal anaesthesia. The surgery was uneventful with 0.7 mL of 0.5 % levobupivacaine [lbupivacaine], which was administered via a 25-gauge needle on the first pass at the L4/5 level. At the age of 13 weeks, he showed an increase in head circumference to the 97 th centile. At the age of 20 weeks, his MRI scan showed bilateral frontal subdural collections. A non-accidental injury was suspected. Neurosurgical management was conservative as his development was appropriate and head circumference was stable. He remained well 2 years after the diagnosis.Case 2, the boy underwent bilateral inguinal hernia repair under spinal anaesthesia at the age of 7 weeks. The spinal anaesthetic was uneventful with 0.5 mL of 0.5% bupivacaine, which was administered via a 27-gauge needle on the first pass at the L4/5 level. Nine weeks after the surgery, he presented with abnormal eye movements. His subsequent MRI showed a small 5mm left-sided subdural collection. A non-accidental injury was suspected. He was conservatively managed. His both the abnormal eye movements and the subdural collections resolved. Two years after the diagnosis, he continued to develop normally.