• Neuromodulation · Jun 2017

    Extended Long-Term Effects of Cervical Vagal Nerve Stimulation on Headache Intensity/Frequency and Affective/Cognitive Headache Perception in Drug Resistant Complex-Partial Seizure Patients.

    • Bogdan Pintea, Kevin Hampel, Jan Boström, Rainer Surges, Hartmut Vatter, Ilana S Lendvai, and Thomas M Kinfe.
    • Department of Neurosurgery, Rheinische Friedrich Wilhelms University Hospital, Bonn, Germany.
    • Neuromodulation. 2017 Jun 1; 20 (4): 375-382.

    ObjectivesInvasive vagal nerve stimulation (iVNS) is an established treatment option for drug-resistant focal seizures and has been assumed to diminish frequent co-incidental daily headache/migraine. However, long-term effects on cognitive/affective head pain perception, headache intensity/frequency are lacking. We therefore investigated potential iVNS-induced effects in patients with drug-resistant focal seizure and daily headache/migraine.Materials And MethodsA clinical database was used to select 325 patients with drug-resistant epilepsy treated by either iVNS plus best medical treatment (BMT) or BMT alone, compared to a healthy control group (HC). We assessed headache intensity (VAS), headache frequency, affective/cognitive pain perception (PASS; FSVA), migraine disability scores (MIDAS), sleep architecture (PSQI), depressive symptoms (BDI), and body weight (BMI).ResultsNineteen patients with daily headache/migraine composed the clinical groups (10 iVNS and 9 BMT; iVNS mean age 49 years, range 36-61 years; BMT mean age 45 years, range 23-63 years; equally distributed gender). Cervical iVNS was applied from 5-13 years (mean 8 years) with following stimulation patterns: 1.3 mA (0.5-2 mA), 20 Hz, 250 μsec, 30 sec on/1.9 min off (0.5-5 min). The iVNS group had significantly lower VAS scores (iVNS 5.4; BMT 7.8; p = 0.03) and PASS cognitive/anxiety subscores (iVNS 21; BMT 16; p = 0.02) compared to BMT and HC. Global PASS (p = 0.07), FSVA, PSQI, BDI, and BMI scores did not differ significantly between groups.ConclusionsiVNS appears to have positive modulatory long-term effects on headache and affective/cognitive head pain perception in patients with drug-resistant focal epilepsy, thus deserving further attention.© 2016 International Neuromodulation Society.

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