• Sudhakar Vadivelu, Paolo Bolognese, Thomas H Milhorat, and Alon Y Mogilner.
• Harvey Cushing Institutes of Neuroscience and the Department of Neurosurgery, Hofstra-North Shore LIJ School of Medicine, Manhasset, NY, USA.
• Prog Neurol Surg. 2011 Jan 1;24:118-25.

AbstractChronic occipital and suboccipital headache is a common symptom in patients with Chiari I malformation (CMI). These headaches may persist despite appropriate surgical treatment of the underlying pathology via suboccipital decompression, duraplasty and related procedures. Occipital stimulation has been shown to be effective in the treatment of a variety of occipital headache/pain syndromes. We present our series of 18 patients with CMI and persistent occipital headaches who underwent occipital neurostimulator trials and, following successful trials, permanent stimulator placement. Seventy-two percent (13/18) of patients had a successful stimulator trial and proceeded to permanent implant. Of those implanted, 11/13 (85%) reported continued pain relief at a mean follow-up of 23 months. Device-related complications requiring additional surgeries occurred in 31% of patients. Occipital neuromodulation may provide significant long-term pain relief in selected CMI patients with persistent occipital pain. Larger and longer-term studies are needed to further define appropriate patient selection criteria as well as to refine the surgical technique to minimize device-related complications.Copyright © 2011 S. Karger AG, Basel.

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