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Showing posts with label corpus callosotomy. Show all posts
Showing posts with label corpus callosotomy. Show all posts

Friday, December 20, 2013

Combination of Corpus Callosotomy and Vagus Nerve Stimulation in the Treatment of Refractory Epilepsy.

Eur Neurol. 2013 Dec 5;71(1-2):65-74. [Epub ahead of print]

Combination of Corpus Callosotomy and Vagus Nerve Stimulation in the Treatment of Refractory Epilepsy.

Guillamón E, Miró J, Gutiérrez A, Conde R, Falip M, Jaraba S, Plans G, Garcés M, Villanueva V.

Author information
  • Servicio de Neurología y Neurocirugía, Unidad Multidisciplinar de Epilepsia, Hospital Universitario y Politécnico La Fe, Valencia, Spain.
Abstract

Background: Palliative techniques such as partial corpus callosotomy (CC) and vagus nerve stimulation (VNS) may be effective for adequate control of seizures in pharmacoresistant patients who are not candidates for resective surgery. Objective: The objective of this study was to analyze the efficacy of the combination of these two techniques in patients where the first surgery had not achieved adequate control. Materials and Methods: This is a retrospective review of 6 patients with refractory epilepsy in which both types of surgery were performed, CC and VNS. We analyzed variables such as age, sex, age at onset of epilepsy, seizure types, electroencephalogram and magnetic resonance imaging results, and number of pre- and postoperative seizures. Results: Three patients first underwent VNS and then CC, and 3 patients were treated in reverse order. All patients had some improvement after the first surgery, but they continued to experience persistent falls, so a second palliative technique was used. The mean improvement after both surgeries was 89% (90% in patients first receiving CC and 87% in patients who first underwent VNS). Conclusions: In adequately studied patients who are not optimal candidates for resective surgery, palliative surgery is a choice. The combination of VNS and CC shows good results in our series, although the right order to perform both procedures has not been defined. These results should be confirmed in a larger group of patients. © 2013 S. Karger AG, Basel.

PMID:
24334999
[PubMed - as supplied by publisher]
http://www.ncbi.nlm.nih.gov/pubmed/24334999
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Thursday, October 11, 2012

[Vagus nerve stimulation therapy in patients with drug-resistant epilepsy and previous corpus callosotomy.]

2012 Oct 6. pii: S1130-1473(12)00097-8. doi: 10.1016/j.neucir.2012.05.001. [Epub ahead of print]

[Vagus nerve stimulation therapy in patients with drug-resistant epilepsy and previous corpus callosotomy.]

[Article in Spanish]

Source

Departamento de Investigación, Centro Latinoamericano de Investigación en Epilepsia-CLIE, Cartagena de Indias, Colombia. Electronic address: cliefire@gmail.com.

Abstract

OBJECTIVE:

To analyse the results of vagus nerve stimulation in patients with drug-resistant epilepsy and previous corpus callosotomy.

MATERIALS AND METHODS:

We prospectively reviewed data from patients with drug-resistant epilepsy who showed persistence of disabling seizures after undergoing corpus callosotomy, in whom it was not possible to identify an epileptogenic focus and who were subsequently treated with vagus nerve stimulation. Variables analysed included: age, gender, aetiology of epilepsy, frequency and characteristics of the crises and Engel scale classification, before and after vagal stimulator implant. Furthermore, the percentage differences in seizure frequency changes were also calculated.

RESULTS:

Four patients were identified: two male and two female. The total seizure frequency had decreased between 20% and 81% after corpus callosotomy in three patients and one of them did not show any favourable response (Engel IVB). Following implantation of the stimulator they became reduced to between 57% and 100% after a mean follow-up period of 8.3 months (range: 3 to 12 months). Generalised seizures decreased between 71.4% and 100%, and focal seizures between 57.7% and 100%.

CONCLUSIONS:

Vagus nerve stimulation therapy proved to be an alternative for the reduction of seizure frequency in patients with drug-resistant epilepsy who suffered disabling seizures despite undergoing corpus callosotomy as primary surgery.
Copyright © 2012 Sociedad Española de Neurocirugía. Published by Elsevier España. All rights reserved.
PMID:
23046918
[PubMed - as supplied by publisher]
http://www.ncbi.nlm.nih.gov/pubmed/23046918