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OCCIPITAL NEURALGIA AND HEADACHE - Health Plan of Nevada

OCCIPITAL NEURALGIA AND HEADACHE - Health Plan of Nevada

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stimulation persisted in more than half <strong>of</strong> the patients for whom the procedure was considered and in<br />

80% <strong>of</strong> those who significantly improved during the trial and proceeded with internalization.<br />

Weiner and Reed (1999) conducted a case series involving 13 patients (17 implant procedures) with<br />

intractable occipital neuralgia treated with peripheral neurostimulation. Follow-up ranged from 1.5-6<br />

years. Twelve patients reported good and excellence response with greater than 50% pain control and<br />

little or no additional medication. The 13th patient was subsequently explanted following symptom<br />

resolution.<br />

Amin et al. (2008) evaluated the efficacy <strong>of</strong> supraorbital nerve stimulation for treatment <strong>of</strong> intractable<br />

supraorbital neuralgia in a case series <strong>of</strong> 16 patients. The patients underwent a trial <strong>of</strong> supraorbital<br />

nerve stimulation, and efficacy was assessed after 5-7 days. Ten patients consented to undergo<br />

permanent implantation <strong>of</strong> the stimulator. Opioid consumption and headache scores were monitored<br />

preoperatively and at timed intervals for 30 weeks. Headache scores decreased, and opioid<br />

consumption was reduced in half, and these beneficial accomplishments were maintained up to 30<br />

weeks after implantation.<br />

The 2007 Hayes Technology Brief on electrical stimulation <strong>of</strong> the occipital nerve for the treatment <strong>of</strong><br />

occipital neuralgia summarized the available evidence stating that the results <strong>of</strong> the available studies<br />

provide preliminary evidence that subcutaneous electrical stimulation <strong>of</strong> the greater and lesser occipital<br />

nerves <strong>of</strong>fers long-term relief in some patients who have intractable occipital neuralgia. Although the<br />

available studies <strong>of</strong> this technique are small and uncontrolled, most <strong>of</strong> the patients in these studies had<br />

experienced symptoms <strong>of</strong> occipital neuralgia for more than two years and had failed to respond<br />

adequately to other conservative and aggressive treatments. Since occipital neuralgia is a rare disorder,<br />

it does not seem feasible to conduct large-scale, randomized controlled trials to evaluate the efficacy <strong>of</strong><br />

electrical stimulation therapy versus other standard therapies; however, larger studies with longer<br />

periods <strong>of</strong> follow-up are needed to confirm the benefits reported in the available studies. (Hayes, 2007)<br />

The quality <strong>of</strong> evidence provided by studies for treatment <strong>of</strong> occipital neuralgia and cervicogenic<br />

headache is generally low. Injection therapies, nerve blockades using steroids and anesthetic agents,<br />

and surgical procedures such as nerve root decompression or neurectomy may provide effective pain<br />

relief for some patients. However, the available studies were limited and had significant<br />

methodological flaws, making it difficult to draw conclusions regarding the efficacy <strong>of</strong> the various<br />

treatments. In addition, most treatments do not provide permanent curative results and recurrences<br />

occurred in a high proportion <strong>of</strong> patients.<br />

Additional Search Terms<br />

cranial nerves, methylprednisolone, trigger points<br />

U.S. FOOD <strong>AND</strong> DRUG ADMINISTRATION<br />

Local Injection Therapy: Various local anesthetics are approved by the FDA for use in diagnostic and<br />

therapeutic nerve blockade. Botulinum toxin-A (BTX-A or BOTOX) is a neurolytic agent that has also<br />

been approved by the FDA for treatment <strong>of</strong> some conditions. However, BTX-A is not specifically<br />

approved for treatment <strong>of</strong> cervicogenic headache or occipital neuralgia; the use <strong>of</strong> BTX-A for these<br />

Occipital Neuralgia & Headache Page 14 <strong>of</strong> 21

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