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| This news site is not sanctioned by, nor part of, the Diamond Headache Foundation, The American Academy of Neurology OR The American Headache Society. |
| News covering selected sessions related to migraine from 2008 medical conferences. |
| Annual Meeting of the American Academy of Neurology |
Chicago, IL April 15-18, 2008 |
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Progressive Balance Disorder Seen in
patients with Migraine |
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BY DON SCHRADER
Contributing Writer |
CHICAGO
(ECCC)— Patients with migraine have a persistent
and progressive balance disorder involving specific domains of
balance, investigators reported April 16 at the annual meeting
of the American Academy of Neurology.
Balance differed significantly between patients with migraine
and a nonmigraine control group, and migraineurs’ performance on
tests of balance deteriorated over time, reported Dr. Gulden
Akdal of Dokuz Eylul University in Izmir, Turkey. The findings
corroborate and extend those from previous studies, which
consistently yielded evidence of a balance problem among
patients with migraine, he added.
The findings came from an evaluation of 15 patients with a
history of migraine and 15 age- and sex-matched controls. Dr.
Akdal and colleagues had previously assessed balance in the
patients and had data to examine changes in balance over time.
The patients and control group completed three types of
posturographic assessments that measured changes in the
patients’ posture: evaluation with eyes open and eyes closed in
response to changes in head position and orientation while on a
platform; limits of stability, which assess control of the
gravity center; and walking on the platform with eyes open and
eyes closed.
Composite sway velocities— balance-related changes in posture in
response to movement—from four different head positions differed
significantly between migraineurs and those in the control group
(P<0.05). Composite sway velocities for head back and rotated to
the left were significantly worse compared with the patients’
previous evaluation (P<0.05).
The migraineurs also had significantly offset center of gravity
for all head positions (P<0.05). Compared with controls, the
migraine patients had a worse performance (P<0.05) on
limits-of-stability parameters (maximal excursion, average
reaction time, and movement velocity), and maximal excursion
differed significantly from the patients’ prior evaluation
(P<0.05). The patients also had worse performance on tandem
(heel-to-toe) walking compared with the control group (P<0.05).
Collectively, the results provide evidence of a persistent and
progressive balance disorder involving certain parameters of
balance in patients with migraine, Dr. Gulden and colleagues
concluded. |
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