Abducens paralysis-a rare complication of spinal anesthesia at an emergency department: a case report.

The sixth cranial nerve (CN VI) is a rare site of complication associated with spinal anesthesia and can produce secondary symptoms of ocular muscle palsy. A 38-year-old man was admitted to the emergency department with complaint of diplopia and limited lateral gaze in the first week after endoscopic urological surgery under spinal anesthesia. Isolated unilateral CN VI palsy was considered after excluding differential diagnoses. Ocular palsy and diplopia regressed with conservative treatment during follow-up, and the patient was discharged. This article aims to show that CN VI palsy is a rare complication of spinal anesthesia, which can be observed in the emergency department.