Abstract

PLANCARTE-SANCHEZ, Ricardo; SAMANO-GARCIA, Marcela; GUILLEN-NUNEZ, María del Rocío  and  EQUIHUA-ORTEGA, Antonio. Localized neuropathic pain. Gac. Méd. Méx [online]. 2021, vol.157, n.3, pp.315-322.  Epub Sep 13, 2021. ISSN 2696-1288.  https://doi.org/10.24875/gmm.20000810.

Localized neuropathic pain (LNP) is of peripheral origin and is characterized by circumscribed areas of pain with abnormal skin sensitivity or spontaneous symptoms that are characteristic of neuropathic pain, e.g. burning pain. It should be noted that LNP is confined to a specific area no larger than a letter size sheet of paper. LNP accounts for 60 % of neuropathic pain conditions. There is no single etiology of LNP. The diagnostic approach is similar to that for other neuropathic pain syndromes. General diagnostic tools are used to assess clinical features. So far, there are no specific guidelines for the management of LNP; for this reason, guidelines for general neuropathic pain are used. Topical treatments are included as part of second-line strategies in the Canadian Pain Society guidelines. Despite the lack of guidelines, 5 % lidocaine patches and 8 % capsaicin patches have been proven effective in LNP models.

Keywords : Localized neuropathic pain; Pain topical treatment; Lidocaine patch; Capsaicin patches.