title: Horner syndrome following a selective cervical nerve root block.
abstract: A 31-year-old man with cervical degenerative disc disease was seen at an outside institution for a right selective nerve root block at C7. Following the procedure, he had right ptosis and miosis. Pharmacologic testing confirmed a right Horner syndrome. MRI and MRA showed no arterial dissection. This report documents the unusual occurrence of permanent Horner syndrome following a selective cervical nerve root block.
authors.affiliation: Department of Ophthalmology, The Methodist Hospital, Houston, Texas, USA. kbkaplow@utmb.edu
authors.forename: Kevin
authors.initials: K
authors.lastname: Kaplowitz
authors.forename: Andrew G
authors.initials: AG
authors.lastname: Lee
mesh_terms: D000328:Adult; D000893:Anti-Inflammatory Agents / Q000008:administration & dosage / Q000009:adverse effects*; D006732:Horner Syndrome / Q000139:chemically induced* / Q000175:diagnosis; D006801:Humans; D007049:Iatrogenic Disease / Q000517:prevention & control; D008297:Male; D009407:Nerve Block / Q000009:adverse effects* / Q000379:methods; D011843:Radiculopathy / Q000175:diagnosis / Q000188:drug therapy*; D014222:Triamcinolone Acetonide / Q000008:administration & dosage / Q000009:adverse effects*
chemical_list: D000893:Anti-Inflammatory Agents; D014222:Triamcinolone Acetonide