Before applying the treatment, the scientists recorded the patients' pain levels on a scale from 1 to 10. The children were then asked to reassess their pain level after the intervention, on the same scale. Overall, the average pain score dropped by more than two points on the 10-point scale, which, as the researchers point out, is statistically very significant.
This short disruption of the SPG resets the headache circuit and breaks the cycle of severe headaches. Researchers say that this minimally invasive therapy works almost instantly and the relief can last for months.
"This treatment, performed in an outpatient setting by an interventional radiologist, can safely relieve a child's migraine quickly," says Dr. Robin Kaye, section chief of interventional radiology in the Department of Medical Imaging at Phoenix Children's Hospital and a co-author of the study. "By reducing the need for medications that come with serious side effects or intravenous therapies that may require hospital stays, children do not have to miss as much school and can get back to being a kid sooner."
However, the SPG block will only be administered to children who have formally received a diagnosis of severe migraine, and who did not respond to the first line of treatment.