Lumbar Sympathetic Block for Intractable Lower-Limb Postherpetic Neuralgia: Report of Two Cases


ÖZTÜRK E. C. , ŞENCAN S. , GÜNDÜZ O. H.

PAIN PRACTICE, 2020 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume:
  • Publication Date: 2020
  • Doi Number: 10.1111/papr.12958
  • Title of Journal : PAIN PRACTICE
  • Keywords: lumbar sympathetic block, postherpetic neuralgia, neuropathic pain, HERPES-ZOSTER, GANGLION

Abstract

Lumbar sympathetic block is a commonly used technique for sympathetically mediated pain syndromes. Postherpetic neuralgia (PHN) is also accepted to be associated with sympathetic system activation. While sympathetic blocks were utilized for upper-extremity or face-related PHN, there has not been any report regarding lower-extremity PHN, as it is an uncommon region. Here, we present two cases of systemic drug-resistant PHN in lower limb, relieved with lumbar sympathetic block. Both patients had at least 50% reduction in numeric rating scale (NRS) scores at the end of 6 months. Lumbar sympathetic block could be considered in the treatment of lower-limb PHN. More reports and controlled trials are needed for further understanding the role of the intervention in this neuropathic pain syndrome.