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Vagus nerve stimulation (VNS) is a palliative treatment for patients with refractory epilepsy; however, the misplacement of electrodes may cause complications and, thus, needs to be avoided. We herein report an intraoperative monitoring technique to prevent the misplacement of electrodes. Endotracheal tube electrodes were inserted to record electromyographic activity (EMG) from the vocal cords and identify the vagus nerve. EMG electrodes were placed on the sternomastoid muscle, sternohyoid muscle, geniohyoid muscle, and trapezius muscle to record muscle activities innervated by the ansa cervicalis. The vagus nerve and ansa cervicalis were electrically stimulated during surgery and EMG of the vocal cords and muscles innervated by the ansa cervicalis was recorded. The threshold of vagus nerve activation ranged between 0.05 and 0.75 mA. The vagus nerve was successfully identified and differentiated from the nerve root of the ansa cervicalis using this technique. Intraoperative monitoring of the vagus nerve and ansa cervicalis is useful for safe and effective VNS.
This article was published in the following journal.
Name: World neurosurgery
Percutaneous electrical stimulation of the auricular vagus nerve (pVNS) is an electroceutical technology. The selection of stimulation patterns is empirical, which may lead to under-stimulation or ove...
The authors describe how severe coughing and breathing issues were caused by a deep brain stimulation (DBS) system due to current induction in the adjacent vagus nerve. A 57-year-old man with Parkinso...
The neurosurgical treatment of glossopharyngeal neuralgia includes microvascular decompression or rhizotomy of the nerve. When considering open section of the glossopharyngeal nerve, numerous authors ...
Vagus Nerve Stimulation (VNS) is a neuromodulation device approved for the treatment of medically refractory epilepsy. Worldwide, only 35 cases of pregnancies that has been described. This study aims ...
Vagus nerve stimulation (VNS) has been FDA-approved as a long-term, therapeutic treatment for multiple disorders, including pharmacoresistant epilepsy and depression. Here we elucidate the short-term ...
Patients with refractory epilepsy who are candidates for a treatment with vagus nerve stimulation will be prospectively randomized into 3 arms with different vagus nerve stimulation paradi...
The purpose of this study is to examine the short-term effects of vagus nerve stimulation (VNS) by auricular stimulation (stimulation of the auricular branch of the vagus nerve which inner...
The vagus nerve is a largely-internal nerve that controls many bodily functions, including stomach function. We hope that electrically stimulating the nerve around the external ear will al...
Electrical vagus nerve stimulation (VNS) was approved by FDA for treatment of chronic recurrent depression in 2005. Recently, non-invasive, transcutaneous auricular vagus nerve stimulation...
Children with refractory epilepsy who are candidates for a treatment with vagus nerve stimulation will be prospectively randomized into 2 arms. Vagus nerve stimulation parameters are progr...
An adjunctive treatment for PARTIAL EPILEPSY and refractory DEPRESSION that delivers electrical impulses to the brain via the VAGUS NERVE. A battery implanted under the skin supplies the energy.
Traumatic injuries to the VAGUS NERVE. Because the vagus nerve innervates multiple organs, injuries in the nerve fibers may result in any gastrointestinal organ dysfunction downstream of the injury site.
The electrical response evoked in a muscle or motor nerve by electrical or magnetic stimulation. Common methods of stimulation are by transcranial electrical and TRANSCRANIAL MAGNETIC STIMULATION. It is often used for monitoring during neurosurgery.
The 10th cranial nerve. The vagus is a mixed nerve which contains somatic afferents (from skin in back of the ear and the external auditory meatus), visceral afferents (from the pharynx, larynx, thorax, and abdomen), parasympathetic efferents (to the thorax and abdomen), and efferents to striated muscle (of the larynx and pharynx).
The inferior (caudal) ganglion of the vagus (10th cranial) nerve. The unipolar nodose ganglion cells are sensory cells with central projections to the medulla and peripheral processes traveling in various branches of the vagus nerve.
Palliative care is the active holistic care of patients with advanced progressive illness. Management of pain and other symptoms and provision of psychological, social and spiritual support is paramount. The goal of palliative care is achievement of the ...
Epilepsy is defined as a disorder of brain function characterized by recurrent seizures that have a sudden onset. (Oxford Medical Dictionary). A seizure is caused by a sudden burst of excess electrical activity in the brain, causing a tempora...