• Xiaodi Sun, Shijiang Liu, Cunming Liu, Jijun Xu, Jie Sun, and Yinbing Pan.
• Department of Anesthesiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China.
• Medicine (Baltimore). 2019 Feb 1; 98 (6): e14406.

RationaleWe present a case of high spinal anesthesia after inadvertent injection of local anesthetics and corticosteroids into the subarachnoid space during attempted epidural injection. Cerebrospinal fluid (CSF) lavage is a suitable method for treatment.Patient ConcernsA 45-year-old woman presented with posterior thigh, leg, and ankle pain for >6 months and was treated with epidural injection. Five minutes after the third time of epidural injection, the patient complained loss of sensation and muscle strength in the lower extremities and abdominal area.DiagnosesA high spinal anesthesia was confirmed by the patient loss of sensation and muscle strength in the lower extremities and abdominal area.InterventionsCSF lavage was performed for treatment.OutcomesAfter CSF lavage, the patient gradually returns to normal sensory and motor functions of lower limbs. On the fourth day, the patient sensed her physical function restoring gradually and was discharged uneventfully. At 4-month follow-up, the patient could have normal activities without obvious subsequent complications and any pain.LessonsWe conclude that CSF lavage could be a helpful maneuver to clear lidocaine and betamethasone and avoid potential nerve damage caused by an unintentional intrathecal injection during an epidural injection for the treatment of chronic low back pain.

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