Improvement of facial sensory loss by motor cortex stimulation in trigeminal neuropathic pain.
| Title: | Improvement of facial sensory loss by motor cortex stimulation in trigeminal neuropathic pain. |
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| Authors: | Dario, Alessandro, Agresta, Gianluca, Locatelli, Davide |
| Source: | Stereotactic & Functional Neurosurgery; 2017 Supplement, Vol. 95, p276-276, 1/2p |
| Abstract: | Introduction: Motor cortical stimulation (MCS) is a tool to treat intractable chronic neuropathic central pain mainly in patients operated for trigeminal pain. If the MCS can ameliorates dysesthesias and/or allodynia very few cases of sensory loss improvement have been reported. We describe two patients with partial recovery of painful trigeminal second branch sensory loss. Clinical CASES: These two females 38 and 52 years-old underwent percutaneous trigeminal thermocoagulation respectively 2 and 5 years before the admission to our Department for typical trigeminal neuralgia. After these procedures a neuropathic pain in trigeminal second branch developed. Medical therapies were ineffective to treat the pain so a Motor Cortex Stimulation was carried out using a 16 poles paddle connected to a implantable multiple source generator. The surgical technique used to implant the device consisted in the use of neuronavigation and of intraoperative neurophysiological registration to find the somatotopic motor cortex area of the face. Results: The pain one month after surgey decreases of 40%. Two month after MCS implant, the patients reported improvement of tactile sensitivity of second branch trigeminal sensory loss. Discussion: The mechanisms leading to sensory restoration is unclear. One hypothesis could report that the sensory impairment, maintained by central mechanisms has been reversed by MCS, leading to the sensory restoration. [ABSTRACT FROM AUTHOR] |
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| Database: | Complementary Index |
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