Neuromodulation : journal of the International Neuromodulation Society
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Multicenter Study Clinical Trial
Automatic Vagus Nerve Stimulation Triggered by Ictal Tachycardia: Clinical Outcomes and Device Performance-The U.S. E-37 Trial.
The Automatic Stimulation Mode (AutoStim) feature of the Model 106 Vagus Nerve Stimulation (VNS) Therapy System stimulates the left vagus nerve on detecting tachycardia. This study evaluates performance, safety of the AutoStim feature during a 3-5-day Epilepsy Monitoring Unit (EMU) stay and long- term clinical outcomes of the device stimulating in all modes. ⋯ The Model 106 performed as intended in the study population, was well tolerated and associated with clinical improvement from baseline. The study design did not allow determination of which factors were responsible for improvements.
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Multicenter Study Observational Study
Results From the Partnership for Advancement in Neuromodulation Registry: A 24-Month Follow-Up.
This longitudinal, clinical outcome study was a multicenter, prospective, observational, registry with a 24-month assessment of patients implanted with spinal cord stimulation (SCS) systems for the management of chronic pain of the trunk and/or limbs. ⋯ Most patients experienced substantial pain relief and a significant improvement in all outcome measures. These results further support the safety, efficacy, and sustainability of SCS in clinical practice.
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The neurophysiological basis of pain relief due to spinal cord stimulation (SCS) and the related cortical processing of sensory information are not completely understood. The aim of this study was to use resting state functional magnetic resonance imaging (rs-fMRI) to detect changes in cortical networks and cortical processing related to the stimulator-induced pain relief. ⋯ SCS reduces the affective component of pain resulting in optimal pain relief. Study shows a decreased connectivity between somatosensory and limbic areas associated with optimal pain relief due to SCS.
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Spinal cord stimulation (SCS) has been applied to relieve chronic pain for decades. Recent studies suggested that SCS also might alleviate epileptic seizures, but the most effective stimulation parameters are not known. The objective of this work was to investigate the role of SCS frequency in alleviating spike-and-wave (SW) discharges induced in rats by pentylenetetrazole (PTZ) infusion. ⋯ The present results showed that 130-Hz and 180-Hz SCS reduced the SWs power and frequency which may indicate an anticonvulsive effect of these SCS frequencies, whereas 30-Hz SCS induced the opposite effects and, therefore, may be proconvulsive.