Background. The Neuropathic Pain Scale (NPS) was the first scale to be developed specifically for measuring neuropathic pain (Galer and Jensen, Neurology, 1997). Pain mechanisms underlying polyneuropathies and radiculopathies are probably different. The aim of the study was to assess the discriminant validity of NPS in patients with neuropathic pain conditions with different underlying mechanisms. Subjects. We selected seven consecutive patients with polyneuropathy (5 M; 2 F, mean age 63.9 years, range 52-79) and seven consecutive patients with lumbosacral radiculopathy (1 M; 6 F, mean age 48.5 years, range 39-61). Diagnoses were made based on medical history, physical examination, and laboratory tests. Methods. The NPS (Italian version) was distributed to all patients previously instructed to respond to the different items for their average pain levels, following the instructions of the original paper. Results. Five of ten items (dull, sensitive, itchy, unpleasant, surface) were significantly different between groups. Conclusion. The obtained results seem to support the discriminant validity of the NPS items. Judging from these preliminary results, the NPS could be helpful in identifying subgroups of patients that share the pain mechanism(s) and selecting a specific treatment strategy. This preliminary report represents the first step for a possible validation of the Italian version of the NPS.
|Issue number||4 SUPPL.|
|Publication status||Published - 2000|
ASJC Scopus subject areas
- Clinical Neurology