Lessons from 8 years' experience of hypothalamic stimulation in cluster headache

Leone, M. and Cecchini, A. Proietti and Franzini, A. and Broggi, G. and Cortelli, P. and Montagna, P. and May, A. and Juergens, T. and Cordella, R. and Carella, F. and Bussone, G. (2008) Lessons from 8 years' experience of hypothalamic stimulation in cluster headache. CEPHALALGIA, 28 (7). pp. 787-796. ISSN 0333-1024, 1468-2982

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Abstract

Neuroimaging studies in cluster headache (CH) patients have increased understanding of attack-associated events and provided clues to the pathophysiology of the condition. They have also suggested stimulation of the ipsilateral posterior inferior hypothalamus as a treatment for chronic intractable CH. After 8 years of experience, stimulation has proved successful in controlling the pain attacks in almost 60% of chronic CH patients implanted at various centres. Although hypothalamic implant is not without risks, it has generally been performed safely. Implantation affords an opportunity to perform microrecordings of individual posterior hypothalamic neurons. These studies are at an early stage, but suggest the possibility of identifying precisely the target site by its electrophysiological characteristics. Autonomic studies of patients undergoing posterior hypothalamic stimulation provide further evidence that long-term stimulation is safe, revealing that it can cause altered modulation of the mechanisms of orthostatic adaptation without affecting the baroreflex, cardiorespiratory interactions or efferent sympathetic and vagal functions. Chronically stimulated patients have an increased threshold for cold pain at the site of the first trigeminal branch ipsilateral to the stimulated side; when the stimulator is switched off, changes in sensory and pain thresholds do not occur immediately, suggesting that long-term stimulation is required to induce sensory and nociceptive changes. Posterior inferior hypothalamic stimulation is now established as a treatment for many chronic CH patients. The technique is shedding further light on the pathophysiology of the disease, and is also providing clues to functioning of the hypothalamus itself.

Item Type: Article
Uncontrolled Keywords: DEEP BRAIN-STIMULATION; OCCIPITAL NERVE-STIMULATION; TERM-FOLLOW-UP; POSTERIOR HYPOTHALAMUS; SPINAL-CORD; ACTIVATION; ATTACKS; SERIES; AREA; RECEPTOR; cluster headache; hypothalamus; deep brain stimulation; pain modulation; pathophysiology
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Lehrstuhl für Neurologie
Depositing User: Dr. Gernot Deinzer
Date Deposited: 28 Oct 2020 09:24
Last Modified: 28 Oct 2020 09:24
URI: https://pred.uni-regensburg.de/id/eprint/30642

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