Kosin Med J.  2018 Jun;33(1):91-95. 10.7180/kmj.2018.33.1.91.

Unilateral Horner's Syndrome following supraclavicular brachial plexus block

  • 1Department of Anesthesiology and Pain Medicine, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Gyeonggi-do, Korea. odaoda84@gmail.com


Supraclavicular brachial plexus block, due to its wide range of indications, is the most widely practiced procedure in anesthesiology. We experienced the case of a 45-year-old female patient who developed unilateral Horner's Syndrome after the use of supraclavicular brachial plexus block. The patient recovered spontaneously from the Horner's syndrome after 2 hours. If Horner's syndrome should occur, its etiology will need to be assessed. It is also important to assure the patient they will recover from the complication within a year.


Horner's Syndrome; Supraclavicular Block

MeSH Terms

Brachial Plexus Block*
Brachial Plexus*
Horner Syndrome*
Middle Aged


  • Fig. 1 Miosis of the left pupil.

  • Fig. 2 Both pupils of the same size.


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