A Spanish study shows that blood flow in the brains of patients with fibromyalgia is different from that of the general population.
Fatigue, persistent pain, sleep disorders … Fibromyalgia is a poorly understood disease doctors. Patients also have trouble deciphering the symptoms. The causes of chronic pain can be very debilitating, are equally mysterious. Cerebrovascular alterations are the cause of this disorder, reports a study of the Polytechnic University of Valencia (Spain) published in Plos One .
The Spanish researchers scanned the brains of 15 patients with fibromyalgia and 15 healthy women by transcranial Doppler. This technique allows non-invasively measuring the speed of moving red blood cells in the large arteries of the brain. In sum, the blood flow. The review was carried out for 5 minutes while the participants were resting with eyes closed.
By comparing the measurements in fibromyalgia with the control group, the scientists found that cerebral blood flow was disrupted first. This alteration seems mainly present in the left hemisphere, say the authors.
The study also shows higher levels of depression and anxiety among sick women. During pain tests, the intensity is perceived as much more important in these volunteers. The authors speculate that the differences in cerebral blood flow related to these painful and emotional symptoms.
Structural differences in the brain have also been highlighted by researchers from Harvard (USA) in 2015. During their work, they found that two brain regions involved in susceptibility showed more neural connections in patients fibromyalgia than in the general population. And the number of connections seemed, the greater the intensity of the pain was high.