The objective of this
study was to establish if chronic
headaches with medication overuse
can modify a topo–kinesthetic
memory test. Nineteen patients with
medication overuse headache
(MOH), 13 patients with chronic
tension–type headache (CTTH)
without medication use and a group
of "normal" subjects underwent a
topo–kinesthetic memory test at T0
and after one month (T1); a control
group of healthy volunteers was
also tested to establish the baseline
in our experimental setting. After
one month, in the MOH patients
there was a reduction of medication
overuse from 3.3±2.65 to 1.1±2.23
(
p
<0.01), but no significant reduction
in headache frequency and
severity index, quality of life, anxiety
and depression scores. The navigation
time at T0 was 14.3±4.97,
27.9±10.12, 34.3±15.38 and
7.5±2.33, 10.1±2.95, 11.4±3.21 for
control, MOH and CTTH with
closed and open eyes, respectively
(
p
<0.02). At T1, the MOH patients
reached performances with open
eyes similar to the healthy controls,
while with closed eyes the navigation
test reached times similar to
those of CTTH patients. The topokinesthetic
memory test seems both
able to discriminate MOH and
CTTH from healthy volunteers and
to be related to pain scores but is
not influenced by the use of drugs.