Authors' response to the Letter to the Editor on “Clinical consideration in evaluating soreness symptoms of fibromyalgia”

摘要

We thank Kawashita and colleagues’ insightful com- ments on FIQRS. To distinguish soreness (or sng, pro- nounced as sa-ng) from pain, we introduced the term “sngception” to describe the somatosensory function of sensing acidosis.’ Experimentally, acidosis could induce itch and/or pain responses (or parathesia in some cases) in humans and rodents depending on the induction site on skin or muscle.” * However, it is still not clear whether acidosis could induce soreness actually, because previous psycho- physical studies only measured the “pain” responses in healthy human subjects.'* Likewise, although the symp- toms of fibromyalgia mainly involve pain and sng (soreness), soreness symptom is never properly evaluated in the past. That is the main reason why we revised the FIQR as a soreness version. Following the concept of sngception, the itchiness or paresthesia version of FIQR might also be needed, yet, not in the priority from the clinical viewpoint, since we want to simplify our questionnaire to ensure successful patients’ recruitment.