title: Horner syndrome after unintended subdural block. A report of 2 cases.
abstract: Horner syndrome is considered a common finding after epidural analgesia or anesthesia in obstetric patients. Conversely, Horner syndrome is very uncommon in nonobstetric patients. We report 2 cases of Horner syndrome after attempted epidural lumbar anesthesia in 2 patients undergoing peripheral vascular surgery. Spinal fluoroscopy with contrast medium showed subdural catheterization in both cases. Horner syndrome after lumbar epidural anesthesia can be an indicator of inadvertent subdural catheter placement.
authors.affiliation: Department of Anesthesiology, Complexo Hospitalario Universitario de Santiago, 15706 Santiago de Compostela, Spain.
authors.forename: Jaime
authors.initials: J
authors.lastname: Rodríguez
authors.forename: María
authors.initials: M
authors.lastname: Bárcena
authors.forename: Manuel
authors.initials: M
authors.lastname: Taboada-Muñiz
authors.forename: Julián
authors.initials: J
authors.lastname: Alvarez
mesh_terms: D000368:Aged; D000767:Anesthesia, Epidural / Q000009:adverse effects*; D004562:Electrocardiography; D005260:Female; D005263:Femoral Artery / Q000601:surgery; D006732:Horner Syndrome / Q000209:etiology*; D006801:Humans; D008297:Male; D009407:Nerve Block; D011150:Popliteal Artery / Q000601:surgery; D013355:Subdural Space; D017131:Thrombectomy; D014656:Vascular Surgical Procedures