Unilateral Horner's Syndrome and Upper Limb Paresthesia Following Labor Epidural Analgesia: A Case Report.

Horner's syndrome arises from a disruption in the sympathetic nervous system. Although it is an uncommon complication of labor epidural analgesia, its occurrence is significantly more frequent among pregnant women. The incidence of Horner's syndrome after epidural analgesia for labor is 0.4%. This heightened frequency may be attributed to the extensive upward spread of local anesthetic (LA), which is possibly amplified by the anatomical and physiological changes during pregnancy. Here, we describe a case of unilateral Horner's syndrome following epidural analgesia, which was also associated with unilateral upper limb paresthesia.