Medicine and Health Sciences Commons^™

Neurosurgery Concepts: Key Perspectives On C2 Nerve Root Transection Following C1 Lateral Mass Screw Fixation, Choroid Plexus Cauterization In Infants With Hydrocephalus, Quality Of Life Following Treatment Of Vestibular Schwannoma, Dynamic Magnetic Resonance Imaging For Glioblastoma Pseudoprogression, Cost-Utility Analysis Of Lumbar Spinal Stenosis Treatment., Johnathan H. Sherman, Nader S Dahdaleh, Panayiotis Pelargos, Sandi Lam, Winward Choy, Isaac Yang, Zachary A Smith

Neurological Surgery Faculty Publications

No abstract provided.

Differential Effects Of Cold Atmospheric Plasma In The Treatment Of Malignant Glioma, Alan Siu, Olga Volotskova, Xiaoqian Cheng, Siri S. Khalsa, Ka Bian, Ferid Murad, Michael Keidar, Jonathan H. Sherman

Neurological Surgery Faculty Publications

Objective

Cold atmospheric plasma (CAP) has recently been shown to selectively target cancer cells with minimal effects on normal cells. We systematically assessed the effects of CAP in the treatment of glioblastoma.

Methods

Three glioma cell lines, normal astrocytes, and endothelial cell lines were treated with CAP. The effects of CAP were then characterized for viability, cytotoxicity/apoptosis, and cell cycle effects. Statistical significance was determined with student's t-test.

Results

CAP treatment decreases viability of glioma cells in a dose dependent manner, with the ID50 between 90-120 seconds for all glioma cell lines. Treatment with CAP for more than 120 seconds …

Long-Term Treatment With Responsive Brain Stimulation In Adults With Refractory Partial Seizures., Gregory K Bergey, Martha J Morrell, Eli M Mizrahi, Alica Goldman, David King-Stephens, Donald C Shields, +34 Additional Authors

Neurological Surgery Faculty Publications

OBJECTIVE: The long-term efficacy and safety of responsive direct neurostimulation was assessed in adults with medically refractory partial onset seizures.

METHODS: All participants were treated with a cranially implanted responsive neurostimulator that delivers stimulation to 1 or 2 seizure foci via chronically implanted electrodes when specific electrocorticographic patterns are detected (RNS System). Participants had completed a 2-year primarily open-label safety study (n = 65) or a 2-year randomized blinded controlled safety and efficacy study (n = 191); 230 participants transitioned into an ongoing 7-year study to assess safety and efficacy.

RESULTS: The average participant was 34 (±11.4) years old with …

Neurosurgery Concepts: Key Perspectives On Dendritic Cell Vaccines, Metastatic Tumor Treatment, And Radiosurgery, Gordon Li, Jonathan H. Sherman, Jin Mo Cho, Michael Lim, Alexander A. Khalessi, Chaim B. Colen, Chae Yong Kim, Viincent Yat Wang, Gabriel Zada, Zachary A. Smith, Isaac Yang

Neurological Surgery Faculty Publications

Background: This is a laboratory study to investigate the effect of adding brain-derived-neurotrophic factor (BDNF) in a poly (N-isopropylacrylamide-g-poly (ethylene glycol) scaffold and its effect on spinal cord injury in a rat model.

Methods: This is a laboratory investigation of a spinal cord injury in a rat model. A dorsolateral funiculotomy was used to disrupt the dorsolateral funiculus and rubrospinal tract. Animals were then injected with either the scaffold polymer or scaffold polymer with BDNF. Postoperatively, motor functions were assessed with single pellet reach to grasp task, stair case reaching task and cylinder task. Histological study …

Cervical Instability In Klippel-Feil Syndrome: Case Report And Review Of The Literature, Aaron Wessell, Peter Derosa, Abraham Cherrick, Jonathan H. Sherman

Neurological Surgery Faculty Publications

Background

The authors present a case of cervical myelopathy and radiculopathy in the setting of multiple Klippel-Feil syndrome abnormalities treated surgically with a single-level C3–C4 anterior cervical discectomy and fusion. We discuss the clinical presentation, radiographic findings, and various treatment options for cervical spine abnormalities in Klippel-Feil syndrome.

Case Presentation

This 22-year-old female with Klippel-Feil syndrome presented with intermittent neck pain, left upper extremity weakness, and paresthesias. Preoperative MRI, CT, and X-rays of the cervical spine revealed anterolisthesis at C3/4 with unstable movement on flexion and extension imaging. In addition, there were multiple segmental fusion abnormalities including hemivertebrae and other …

Principles Of Using Cold Atmospheric Plasma Stimulated Media For Cancer Treatment, Dayun Yan, Annie Talbot, Niki Nourmohammadi, Xiaoqian Cheng, Jerome Canady, Jonathan H. Sherman, Michael Keidar

Neurological Surgery Faculty Publications

To date, the significant anti-cancer capacity of cold atmospheric plasma (CAP) on dozens of cancer cell lines has been demonstrated in vitro and in mice models. Conventionally, CAP was directly applied to irradiate cancer cells or tumor tissue. Over past three years, the CAP irradiated media was also found to kill cancer cells as effectively as the direct CAP treatment. As a novel strategy, using the CAP stimulated (CAPs) media has become a promising anti-cancer tool. In this study, we demonstrated several principles to optimize the anti-cancer capacity of the CAPs media on glioblastoma cells and breast cancer cells. Specifically, …

Effect Of Cold Plasma On Glial Cell Morphology Studied By Atomic Force Microscopy., Nina Recek, Xiaoqian Cheng, Michael Keidar, Uros Cvelbar, Alenka Vesel, Miran Mozetic, Jonathan Sherman

Neurological Surgery Faculty Publications

The atomic force microscope (AFM) is broadly used to study the morphology of cells. The morphological characteristics and differences of the cell membrane between normal human astrocytes and glial tumor cells are not well explored. Following treatment with cold atmospheric plasma, evaluation of the selective effect of plasma on cell viability of tumor cells is poorly understood and requires further evaluation. Using AFM we imaged morphology of glial cells before and after cold atmospheric plasma treatment. To look more closely at the effect of plasma on cell membrane, high resolution imaging was used. We report the differences between normal human …

Anesthesia For Deep Brain Stimulation In Traumatic Brain Injury-Induced Hemidystonia, Jill M. Jani, Chima O. Oluigbo, Srijaya K. Reddy

Neurological Surgery Faculty Publications

Deep brain stimulation in an awake patient presents several unique challenges to the anesthesiologist. It is important to understand the various stages of the procedure and the complexities of anesthetic management in order to have a successful surgical outcome and provide a safe environment for the patient.

Controversial Neuroendoscopic Monro Foraminoplasty In The Management Of Isolated Lateral Ventricle In An Adult, Max O. Krucoff, Moshe Chinn, Parker Babington, Zachary N. Litvack

Neurological Surgery Faculty Publications

This report describes the clinical presentation, differential diagnosis, imaging characteristics, and current literature regarding the minimally invasive neuroendoscopic treatment of a rare condition: idiopathic unilateral hydrocephalus presenting late in adulthood. This paper also addresses the current controversy regarding septum pellucidotomy and/or Monro foraminoplasty as mono- or dual therapies for UH. A 63 year old African American female presented with headaches, blurry vision, and gait instability for six months. She was referred for neurosurgical consultation after an MRI demonstrated enlargement of the right lateral ventricle with left septal deviation. The patient underwent endoscopic transventricular fenestration of an idiopathic membrane occluding the …

Lateralization Of Mesial Temporal Lobe Epilepsy With Chronic Ambulatory Electrocorticography, David King-Stephens, Emily Mirro, Peter B. Weber, Kenneth D. Laxer, Paul C. Van Ness, Donald C. Shields, +24 Additional Authors

Neurological Surgery Faculty Publications

Objective

Patients with suspected mesial temporal lobe (MTL) epilepsy typically undergo inpatient video–electroencephalography (EEG) monitoring with scalp and/or intracranial electrodes for 1 to 2 weeks to localize and lateralize the seizure focus or foci. Chronic ambulatory electrocorticography (ECoG) in patients with MTL epilepsy may provide additional information about seizure lateralization. This analysis describes data obtained from chronic ambulatory ECoG in patients with suspected bilateral MTL epilepsy in order to assess the time required to determine the seizure lateralization and whether this information could influence treatment decisions.

Methods

Ambulatory ECoG was reviewed in patients with suspected bilateral MTL epilepsy who were …