42 Headache Medicine, v.3, n.1, p.41-43, Jan./Feb./Mar. 2012
SANTOS PS, IACHINSKI RE, SATO HK, NASCIMENTO MT, SOUZA RK, RIZELIO V, ET AL.
CASE REPORT
The patient was a 49 year-old male, who has been
suffering from cluster headache since the age of 37. The
intensity and frequency of his cluster headache attacks
had progressively worsened in the last seven years. There
was no history of remission periods exceeding 30 days in
the last year. At the time of his admission, he was using
topiramate 75 mg o.d. and naratriptan 2.5 mg b.i.d..
Twenty milliliters of lidocaine 2% diluted in 240 mL of
dextrose 0.5% were infused at 60 mL/h. During the infusion
the patient was kept under cardiac monitoring. There were
no adverse events. The patient had no headaches during
the infusion period, and remained cluster headache-free
at the follow-up, even after naratriptan withdrawal and
after reduction of topiramate to 25 mg 1 b.i.d.. Discussion
Lidocaine is a local anesthetic widely used in medical
practice for regional anesthesia in peripheral and central
neuropathic pain.
(8,9)
It can be administered by different
routes: epidural, spinal, intramuscular, intrapleural, topical,
intranasal and intravenous.
(8)
Intranasal lidocaine has been
used as adjuvant treatment for attacks of cluster headache
since 1985
(10)
and, similarly, was tried in the treatment of
migraine.
(11)
While success is achieved in addressing these
painful situations, this is not a usual practice.
(10-13)
In addition,
other studies show the use of intravenous lidocaine to abort
SUNCT attacks.
(4,5)
In 2004, Matharu
(5)
described four cases
of SUNCT patients who showed disappearance of the
headache during intravenous lidocaine administration.
However, recurrence was observed approximately 15 to
20 minutes upon termination of the infusion.
(5)
Adverse
events were reported by three patients and consisted of
nausea and vomiting, depressive symptoms and paranoid
ideation.
(5)
In two patients, SUNCT remitted for about a
year after the intravenous administration of lidocaine and
substitution of the previous prophylactic medications for
topiramate.
(5)
Arroyo, in a 2010 double-blind study
(4)
demonstrated that intravenous lidocaine was superior to
placebo in the treatment of SUNCT. These authors
reinforced the need for patient monitoring during the
intravenous administration of lidocaine.
(4,5)
Although the
results suggest a good response to intravenous lidocaine
as an abortive therapy of SUNCT, its mechanisms of
action are still unclear.
(4)
In 1988, Maciewicz
(6)
reported
the use of intravenous lidocaine for treating migraine and
cluster headache attacks. In this report, the author found
a significant reduction in pain intensity reported by patients
with cluster headache.
(6)
He also suggested that the good
result was due to the direct action of lidocaine in the
trigeminal nociceptive input from local blood vessels.
(6)
Marmura, in 2009,
(7)
through a retrospective study on the
use of intravenous lidocaine in 68 patients, two of whom
were suffering from cluster headache, reported a 50%
improvement of pain after administration of the anesthetic
in these patients. Just as in SUNCT, lidocaine mechanism
of action involved in termination of cluster headache attacks
is unclear.
(4,7)
However, Leone (2009)
(14
) suggested cluster
headache and SUNCT to share similar pathophysiological
mechanisms. This assumption is due to the presence of
hypothalamic activation in cluster headache and SUNCT
as well as the positive response of both conditions to high-
frequency hypothalamic stimulation.
(14)
As summed up by Lauretti (2008)
(9)
"the final
analgesic action of intravenous lidocaine reflects the
multifactorial aspect of its action, resulting from the
interaction with sodium channels, and direct or indirect
interaction with different receptors and nociceptive
transmission pathways such as muscarinic antagonism,
glycine inhibiton, reduction in the production of excitatory
amino acids, reduction in the production of thromboxane
A2, release of endogenous opioids, reduction in
neurokinins and release of adenosine triphosphate".
Finally, intravenous lidocaine was generally
considered to be safe in this setting of administration, and
may obviate the need for prolonged medical, semi-
invasive or invasive therapies. Based upon the "single-
shot" response observed in this case, prospective controlled
double-blind studies to prove the efficacy of intravenous
lidocaine in remission of symptoms of cluster headache
are desirable.
REFERENCES
1. Fischera M, Marziniak M, Gralow I, Evers S. The incidence and
prevalence of cluster headache: a meta-analysis of population-
based studies. Cephalalgia. 2008;28(6):614-8.
2. Goadsby PJ, Cittadini E, Burns B, Cohen AS. Trigeminal
autonomic cephalalgias: diagnostic and therapeutic
developments. Curr Opin Neurol. 2008;21(3):323-30.
3. Cohen AS, Goadsby PJ. Prevention and treatment of cluster
headache. Prog Neurol Psychiatry. 2009;13(3):9-16.
4. Arroyo Am, Durán XR, Beldarrain MG, Pinedo A, García-Moncó
JC. Response to intravenous lidocaine in a patient with SUNCT
syndrome. Cephalalgia. 2010;30(1):110-2.
5. Matharu MS, Cohen AS, Goadsby PJ. SUNCT syndrome responsive
to intravenous lidocaine. Cephalalgia. 2004;24(11): 985-92.
6. Maciewicz R, Chung RY, Strassman A, Hochberg F, Moskowitz M.
Relief of vascular headache with intravenous lidocaine: clinical
observations and a proposed mechanism. Clin J Pain. 1988;
4:11-6.