Administering the common anaesthetic lidocaine via the nose to certain nerves associated with migraines offers chronic migraine sufferers sustained relief from their headaches, the findings showed. Although not a complete cure for migraines, the treatment called image-guided, intranasal sphenopalatine ganglion (SPG) blocks give patients relief, the researchers said.

"Intranasal sphenopalatine ganglion blocks are image-guide, targeted, breakthrough treatments," said lead researcher Kenneth Mandato from Albany Medical Center in New York.

"They offer a patient-centered therapy that has the potential to break the migraine cycle and quickly improve patients' quality of life,"  Mandato said.

The researchers conducted a retrospective analysis of 112 patients suffering migraine or cluster headaches .Patients reported the severity of their headaches on a visual analogue scale (VAS), ranging from 1 to 10 to quantify the degree of debilitation experienced from migraine.

Researchers administered four percent lidocaine to the sphenopalatine ganglion, a nerve bundle just behind the nose associated with migraines.

The findings are scheduled to be presented at the ongoing Society of Interventional Radiology's  40th Annual Scientific Meeting at the Georgia World Congress Center in Atlanta.

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