VNS in drug resistant epilepsy: preliminary report on a small group of patients

<p>Abstract</p> <p>Background</p> <p>In 1997 Vagus Nerve Stimulation (VNS) received approval from the US Food and Drug Administration (FDA) as an adjunctive therapy in the treatment of medically intractable partial epilepsy in people aged 12 years and older who are inel...

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Main Authors: Iero Luisa, Cecconi Ilaria, Brunetto Daniela, Colonnelli Maria, Gentile Valentina, Franzoni Emilio, Moscano Filomena C, Cordelli Duccio M, Marchiani Valentina
Format: Article
Language:English
Published: BMC 2010-04-01
Series:Italian Journal of Pediatrics
Online Access:http://www.ijponline.net/content/36/1/30
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author Iero Luisa
Cecconi Ilaria
Brunetto Daniela
Colonnelli Maria
Gentile Valentina
Franzoni Emilio
Moscano Filomena C
Cordelli Duccio M
Marchiani Valentina
author_facet Iero Luisa
Cecconi Ilaria
Brunetto Daniela
Colonnelli Maria
Gentile Valentina
Franzoni Emilio
Moscano Filomena C
Cordelli Duccio M
Marchiani Valentina
author_sort Iero Luisa
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>In 1997 Vagus Nerve Stimulation (VNS) received approval from the US Food and Drug Administration (FDA) as an adjunctive therapy in the treatment of medically intractable partial epilepsy in people aged 12 years and older who are ineligible for resective epilepsy surgery. Although the exact mechanisms of action are unknown, the use of VNS with children has increased, including those younger than 12 years of age, or those with generalized epilepsy.</p> <p>Methods</p> <p>We describe the outcome for the first group of nine patients, aged 8-28 years, who had pharmaco-resistant epilepsy and were treated with VNS. During the follow up, we gradually and slowly increased the parameters of the stimulation in order to assess the efficacy of VNS even at parameters which would usually be considered "non-therapeutic", along with possible side effects and changes in quality of life.</p> <p>Results</p> <p>At the last follow, up 1 patient was "seizures free", 3 were "very good responders", 3 were "good responders" and 2 were "non responders". We obtained an initial seizure reduction with low stimulation parameters, the highest current reached being 2.00 mA. This observation supports the possibility that, for younger patients, lower stimulation intensities than those commonly used in clinical practice for adults can be therapeutic. We also wanted to underline the reduction in seizure frequency (~91,7%) and the reduction in seizure duration (> 50%) in the patients affected by drug-resistant absence epilepsy. Adverse effects were mild, tolerable and, in most of cases, easily resolved by adjusting the stimulation parameters. Hoarseness of voice was the most frequent side effect. The improvements in the quality of life are relevant and seem to be independent of the VNS effect in controlling seizures.</p> <p>Conclusions</p> <p>Our small experience seems to confirm the efficacy and safety of VNS in drug resistant partial and generalized epilepsy in developing age groups.</p>
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spelling doaj.art-c34eca7b804444bfbff37e2ceae295f92022-12-22T02:11:47ZengBMCItalian Journal of Pediatrics1720-84241824-72882010-04-013613010.1186/1824-7288-36-30VNS in drug resistant epilepsy: preliminary report on a small group of patientsIero LuisaCecconi IlariaBrunetto DanielaColonnelli MariaGentile ValentinaFranzoni EmilioMoscano Filomena CCordelli Duccio MMarchiani Valentina<p>Abstract</p> <p>Background</p> <p>In 1997 Vagus Nerve Stimulation (VNS) received approval from the US Food and Drug Administration (FDA) as an adjunctive therapy in the treatment of medically intractable partial epilepsy in people aged 12 years and older who are ineligible for resective epilepsy surgery. Although the exact mechanisms of action are unknown, the use of VNS with children has increased, including those younger than 12 years of age, or those with generalized epilepsy.</p> <p>Methods</p> <p>We describe the outcome for the first group of nine patients, aged 8-28 years, who had pharmaco-resistant epilepsy and were treated with VNS. During the follow up, we gradually and slowly increased the parameters of the stimulation in order to assess the efficacy of VNS even at parameters which would usually be considered "non-therapeutic", along with possible side effects and changes in quality of life.</p> <p>Results</p> <p>At the last follow, up 1 patient was "seizures free", 3 were "very good responders", 3 were "good responders" and 2 were "non responders". We obtained an initial seizure reduction with low stimulation parameters, the highest current reached being 2.00 mA. This observation supports the possibility that, for younger patients, lower stimulation intensities than those commonly used in clinical practice for adults can be therapeutic. We also wanted to underline the reduction in seizure frequency (~91,7%) and the reduction in seizure duration (> 50%) in the patients affected by drug-resistant absence epilepsy. Adverse effects were mild, tolerable and, in most of cases, easily resolved by adjusting the stimulation parameters. Hoarseness of voice was the most frequent side effect. The improvements in the quality of life are relevant and seem to be independent of the VNS effect in controlling seizures.</p> <p>Conclusions</p> <p>Our small experience seems to confirm the efficacy and safety of VNS in drug resistant partial and generalized epilepsy in developing age groups.</p>http://www.ijponline.net/content/36/1/30
spellingShingle Iero Luisa
Cecconi Ilaria
Brunetto Daniela
Colonnelli Maria
Gentile Valentina
Franzoni Emilio
Moscano Filomena C
Cordelli Duccio M
Marchiani Valentina
VNS in drug resistant epilepsy: preliminary report on a small group of patients
Italian Journal of Pediatrics
title VNS in drug resistant epilepsy: preliminary report on a small group of patients
title_full VNS in drug resistant epilepsy: preliminary report on a small group of patients
title_fullStr VNS in drug resistant epilepsy: preliminary report on a small group of patients
title_full_unstemmed VNS in drug resistant epilepsy: preliminary report on a small group of patients
title_short VNS in drug resistant epilepsy: preliminary report on a small group of patients
title_sort vns in drug resistant epilepsy preliminary report on a small group of patients
url http://www.ijponline.net/content/36/1/30
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