![Norepinephrine-evoked pain in fibromyalgia. A randomized pilot study [ISRCTN70707830]](https://rdl.ink/render/https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fcorehtml%2Fpmc%2Fpmcgifs%2Fpmc-card-share.jpg%3F_%3D0?width=92&height=&ar=&mode=&format=avif&dpr=2)
Norepinephrine-evoked pain in fibromyalgia. A randomized pilot study [ISRCTN70707830]
Norepinephrine-evoked pain was seen in 80 % of FM patients (95% confidence intervals 56.3 – 94.3%), in 30 % of rheumatoid arthritis patients and in 30 % of healthy controls (95% confidence intervals 11.9 – 54.3) (p < 0.05). Intensity of norepinephrine-evoked pain was greater in FM patients (mean ± SD 2.5 ± 2.5) when compared to rheumatoid arthritis patients (0.3 ± 0.7), and healthy controls (0.3 ± 0.8) p < 0.0001.
