A case of unilateral Horner's syndrome after combined spinal epidural anesthesia with ropivacaine 10mg/mL for cesarean section.

We report a case of transient unilateral Horner's syndrome during the setting of combined spinal epidural anesthesia for elective cesarean section using ropivacaine 10mg/mL. The pathophysiology of Horner's syndrome and the possible mechanisms in relation to combined spinal epidural anesthesia are also presented.