Abstract
Approximately 33% of patients with epilepsy do not respond to treatment with a single antiepileptic drug. Many of these patients can benefit from neurosurgical treatment. However, not all patients are candidates for surgery, and in these cases vagus nerve stimulation (VNS) presents as a good therapeutic option. Objectives: Evaluation of efficiency, tolerability and safety in the control of seizures after VNS implantation in patients from a reference hospital. Methods: cross-sectional study examined 20 patients who underwent implantation of the VNS in our facilities between 2007 and 2014. Proportions and chi-square test were applied (statistical significance level set to p ≤ 0.05). Results: Mean follow-up was 31.3 months. Seizure frequency decreased in 55% of the patients. Among them, 11 patients believed that VNS had improved their quality of life. The mean reduction reported by other patients was 78.3%. More than 30% reported no adverse effects. About 70% of patients no longer required hospitalizations and 95% reported reduction in the number of hospitalizations. Conclusion: In this population, VNS proved to be a good option in the treatment of refractory epilepsy and also in providing a significant improvement in quality of life, (reduction of seizures and hospitalizations), mood, attention and memory, which directly reflects on their social and cognitive.
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