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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Headache+Pain
2017 ; 18
(1
): 75
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OnabotulinumtoxinA injections in chronic migraine, targeted to sites of
pericranial myofascial pain: an observational, open label, real-life cohort
study
#MMPMID28733943
Ranoux D
; Martiné G
; Espagne-Dubreuilh G
; Amilhaud-Bordier M
; Caire F
; Magy L
J Headache Pain
2017[Dec]; 18
(1
): 75
PMID28733943
show ga
BACKGROUND: OnabotulinumtoxinA has proven its efficacy in reducing the number of
headache days in chronic migraine (CM) patients. The usual paradigm includes 31
pericranial injection sites with low dose (5 U) per site. The aim of this study
is to present the results obtained using a simpler injection protocol of
onabotulinumtoxinA, with injection sites targeted to pericranial myofascial sites
of pain. METHODS: Observational, open label, real-life, cohort study. We enrolled
63 consecutive patients fulfilling the diagnostic criteria of CM, and refractory
to conventional treatments. The patients were injected using a "follow-the-pain"
pattern into the corrugator and/or temporalis and/or trapezius muscles. The doses
per muscle were fixed. According to the number of muscles injected, the total
dose could vary from 70 to 150 U per session. Patients were considered responders
if they had a ? 50% decrease in number of headache days in at least two
consecutive injection cycles. RESULTS: Forty one patients (65.1% in intention to
treat analysis) responded to treatment. In 70.7% of responders, the effect size
was even higher, with a reduction ?70% in the number of headache days. The
associated cervical pain and muscle tenderness, present in 33 patients, was
reduced by ?50% in 31 patients (94%). Triptan consumption dramatically decreased
(81%) in responders. The trapezius was the most frequently injected muscle. We
observed no serious adverse event. The mean patient satisfaction rate was 8.5/10.
CONCLUSIONS: This study provides additional robust evidence supporting the
efficacy of onabotulinumtoxinA injections in CM. Furthermore, the paradigm we
used, with reduced number of injection sites targeted to pericranial myofascial
sites of pain, may provide evidence in favor of the implication of myofascial
trigger points in migraine chronicization. TRIAL REGISTRATION: ClinicalTrials.gov
Protocol Record I17022 ClinicalTrials.gov Identifier: NCT03175263 . Date of
registration: June 7, 2017. Retrospectively registered.