Therapy reduced pain level by about one-third for up to a month, study found
WebMD News from HealthDay
By Alan Mozes
HealthDay Reporter
SUNDAY, March 1, 2015 (HealthDay News) -- A procedure that delivers the anesthetic lidocaine (Xylocaine) directly to nerves in the back of the nasal cavity appears to offer significant relief to migraine sufferers, preliminary research indicates.
Early findings suggest that a single outpatient treatment can reduce migraine pain levels by about 35 percent for up to a month after the procedure, according to this small, ongoing study.
The technique is "a minimally invasive treatment option," said the study's lead author Dr. Kenneth Mandato, a vascular and interventional radiologist at Albany Medical Center in Albany, N.Y. He added that he views the new procedure as "a clear simple alternative" to standard migraine treatments.
"This nasal spray option is safe, convenient and innovative," said Mandato.
In the new study, his team focused on 112 patients averaging about 45 years of age. All had been diagnosed with either migraines or another type of intensely painful (and cyclically occurring) headache known as cluster headaches.
Before participating in the study, patients were asked to indicate their pain levels according to a standardized scale from 1 to 10. Pre-treatment pain scores averaged more than 8, Mandato said.
The participants all underwent a session of "image-guided therapy," in which a spaghetti-sized catheter was inserted through a nostril and into the nasal passage to deliver a dose of lidocaine to a nerve center known as the sphenopalatine ganglion. This was then repeated in the opposite nostril, according to the researchers.
Mandato stressed that no one in the study required sedation to undergo the procedure.
The target nerve bundle, explained Mandato, "resembles a complex highway crossing with many [nerve] signals and exits going in all directions." And, he said, the hope was that lidocaine would essentially short-circuit that bundle's headache-causing pathway.
The day after the procedure, average migraine pain levels had dropped from about 8 to just over 4. Pain scores rose only marginally a week after the procedure, and reached an average of just over 5 by the one month post-procedure mark, according to the study.
source : Nerve Treatment Via Nose Shows Promise Against Migraines
