title: Epidural clonidine relieves intractable neuropathic itch associated with herpes zoster-related pain.
abstract: OBJECTIVE
  We present a case of intense herpes zoster-related pain and itching in the ophthalmic division of the trigeminal nerve (V1). Successful pain and itch management was achieved after insertion of a high thoracic epidural catheter with a continuous infusion of bupivacaine and clonidine.
  
  
  METHODS
  A 73-year-old woman with metastatic malignant melanoma developed acute herpes zoster-related pain and itching unresponsive to conventional oral medications. The patient described severe and frequent attacks of lancinating pain occurring in the dermatomal distribution of the left ophthalmic division of the trigeminal nerve. She also had a disturbing itch in the same distribution as her pain. The patient had significant reduction in the frequency and intensity of the lancinating attacks after placement of a thoracic epidural catheter with continuous infusion of 1 microg/mL clonidine and 0.05% bupivacaine. The itching resolved completely as well.
  
  
  CONCLUSIONS
  High thoracic epidural infusion of bupivacaine and clonidine was beneficial in relieving neuropathic itch in a patient with acute herpes zoster-related pain in the distribution of the trigeminal nerve.
authors.affiliation: Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02445, USA. elkershmd@hotmail.com
authors.forename: Mohamed A
authors.initials: MA
authors.lastname: Elkersh
authors.forename: Thomas T
authors.initials: TT
authors.lastname: Simopoulos
authors.forename: Atif B
authors.initials: AB
authors.lastname: Malik
authors.forename: Eleanor H
authors.initials: EH
authors.lastname: Cho
authors.forename: Zahid H
authors.initials: ZH
authors.lastname: Bajwa
mesh_terms: D000316:Adrenergic alpha-Agonists / Q000008:administration & dosage / Q000627:therapeutic use*; D000368:Aged; D015360:Analgesia, Epidural; D000779:Anesthetics, Local / Q000008:administration & dosage / Q000627:therapeutic use; D002045:Bupivacaine / Q000008:administration & dosage / Q000627:therapeutic use; D003000:Clonidine / Q000008:administration & dosage / Q000627:therapeutic use*; D004351:Drug Resistance; D005260:Female; D006562:Herpes Zoster / Q000150:complications*; D006801:Humans; D008545:Melanoma / Q000150:complications; D010148:Intractable Pain / Q000188:drug therapy* / Q000209:etiology; D011537:Pruritus / Q000188:drug therapy* / Q000209:etiology; D014277:Trigeminal Neuralgia / Q000188:drug therapy / Q000209:etiology
chemical_list: D000316:Adrenergic alpha-Agonists; D000779:Anesthetics, Local; D003000:Clonidine; D002045:Bupivacaine