Neurology Commons^™

Case Report: What’S That Smell? Olfactory Seizures, Devin Hoover, Neelesh Parikh, James A. Espinosa, Alan Lucerna

Rowan-Virtua Research Day

We report a case of a 64-year-old male who presented with transient episodes of near syncope followed by a noxious odor and was diagnosed with olfactory seizures. The differential diagnosis for near syncope is broad. This case demonstrates that unusual olfactory symptoms can lead to a diagnosis of seizure disorder in the emergency department.

Spontaneous Intracranial Hemorrhage In A 29-Year-Old Male: A Case Report, Md Fateha, Caroline Nguyen, Michael A. Morris

Rowan-Virtua Research Day

Spontaneous intracranial hemorrhage is rare, especially in a young patient population. Signs and symptoms of intracranial hemorrhage include facial droop, vision loss, motor deficits with extraocular movements, deficits with tongue movement, weakness in the arms or legs, sensation loss, and mental status change. This is a case report of a 29-year-old male with no past medical history who presented for a spontaneous intracranial hemorrhage. This patient's only neurologic deficit was the loss of visual field on the left inferior quadrant of his field of vision. The patient obtained a CT head non-contrast which showed 21 mm acute right occipital hemorrhage …

Case Report: Varicella Zoster Virus Encephalitis Presenting With Monochorea, Chetna Thawani, Frank Wheeler

Rowan-Virtua Research Day

Meningoencephalitis is a broad range of symptoms as a sequela of inflammation of the CNS system. It is a diagnosis that is often missed, especially in atypical presentations. We describe a case of HSV encephalitis that presented to the ER afebrile with atypical arm movements, most similar to a monochorea, and discuss other cases in the literature of atypical presentations of this disease.

Examining The Differences In Functional Outcomes For Patients With Traumatic Brain Injury After Acute Rehabilitation And Subacute Rehabilitation: A Review Of The Literature, Michael Rangel, Ashley Kakkanatt

Rowan-Virtua Research Day

BACKGROUND/PURPOSE

Traumatic brain injury (TBI) is one of the major causes of morbidity in the US [1-4]. Studies suggest TBI patients’ enrollment in a rehabilitation program strongly predicts social reintegration. The structure and outcomes of inpatient rehabilitation programs, including acute and subacute rehabilitation, are not well-delineated [5-7].

DESIGN

A structured review of current literature was conducted. Articles were screened using the search string: (post-traumatic brain injury OR post-TBI OR traumatic brain injury OR TBI) AND (acute rehabilitation OR subacute rehabilitation) AND (outcomes OR functional outcomes) NOT (outpatient OR outpatient populations) NOT (pediatric OR pediatric populations). Articles were limited to 1990 …

Transcranial Electrical Stimulation As A Treatment For Aging-Related Cognitive Disorders: Review Of Published Evidence, Srujan Dadi, Kyle Jackson, Don Shamilov

Rowan-Virtua Research Day

Alzheimer's disease (AD) and MCI are a major concern in modern neuropsychiatric care, chiefly for their difficult management. This strategic literature review categorizes MCI via the Jak-Bondi criteria and relates it to tES treatment paradigms. Commonly used outcome measures and regional brain mapping data synergizes associations between MCI pathology and potential tES treatment targets. Effect sizes were calculated and attributed to outcome measures based on primary articles evaluating the efficacy of tES. These were then corresponded to a desired Jack-Bondi classification. A better understanding of the efficacy of tES on specific brain regions in synergy with diagnostic criteria will allow …

Special Anatomy Series. Imaging Inner Ear Structures With High-Frequency Ultrasound: Application To Physical Rehabilitation Space Medicine., Jeffrey Strakowski, Han Zhang, Millard Reschke, Faye Y Chiou-Tan

Neuroscience Articles

OBJECTIVE: The objective of this paper is to document the feasibility of image acquisition, image optimization, and sonographic appearance of the exposed anatomic windows of cadaveric inner ear dissection for purposes of potential future clinical evaluation as part of the developing area of physical and rehabilitation space medicine.

METHODS: Cadaveric dissection of the inner ear was conducted with the goal of exposing areas relevant to vestibular balance. Middle and inner ear structures of 3 human cadavers were imaged with multiple broadband transducers, including emphasis with higher frequency transducers.

RESULTS: The images were best optimized with 17 MHz and 22 MHz …

Comparison Of Associated Autoimmune Disease Diagnoses In Myasthenia Gravis And Multiple Sclerosis Patients, Alecca Como, Jacob Keeley, Daniel Menkes

Posters

Autoimmune diseases often co-exist given the non-specific nature of the immune response. For example, myasthenia gravis [MG], a well-established autoimmune disease, has a 2.36-fold increased risk of developing thyroid diseases as compared to normal controls. 1,2 In contrast, multiple sclerosis [MS] is a disorder in which the immune system subserves an important pathogenic role, although there is insufficient evidence to definitively classify it as an autoimmune disease. 3,4 Since the etiology of MS has yet to be identified, and the specific autoimmune mechanism requires further elucidation, the comparison of its coassociated autoimmune diseases with that of a well-studied neuroautoimmune disease, …

Targeted-Sequencing Evaluation For Fzd4 Variants In Familial Exudative Vitreo-Retinopathy, Mary Drekh, Wendy Dailey, Vincent Le, Savyo Krikor, Kimberly A. Drenser, Kenneth P. Mitton

Posters

• The Familial hereditary vision loss disease may present with symptoms including retinal detachment, folding, neovascularization, or vitreous hemorrhage due to peripheral retina avascularity.
• The manifestation of FEVR genetically has been associated with a loss of function mutation of the Wnt/bcantenin-signaling pathway involving 7 genes (FZD4, NDP, CTNNB1, KIF11, LRP5, TSPAN12, and ZNF408). In our patient population of 72 individuals the distribution of FZD4 gene variants leading to FEVR has been recorded.
• The Frizzled4 gene (FZD4) codes for the G-coupled protein receptor and effects Wnt/b-cantenin-signaling pathway In endothelial cells.
• What frequency of FEVR from our patient pool will have FZD4 variants …

Cerebral Venous Sinus Thrombosis (Cvst): A Retrospective Study, Nia Acharya

Theses/Capstones/Creative Projects

This retrospective study investigates the long-term management of Cerebral Venous Sinus Thrombosis (CVST) in 51 patients over a 3-month follow-up. The analysis covers demographics, risk factors, CVST presentation, associated diseases, thrombophilia, laboratory results, and antithrombotic treatments. CVST, a rare thrombosis of dural/cerebral sinuses, poses life-threatening risks with an annual incidence aligning with literature, notably affecting young individuals. Underlying causes range from rare disorders to common triggers, complicating diagnosis, especially during pregnancy. Imaging techniques aid diagnosis, with systemic anticoagulation preferred despite bleeding risks. Noteworthy findings include a higher incidence in women, predominantly presenting with headaches. Two cases of vaccine-induced immune thrombotic …

Post-Covid Small Fiber Neuropathy, Implications Of Innate Immunity, And Challenges On Ivig Therapy, Marinos Dalakas

Department of Neurology Faculty Papers

No abstract provided.

Plant Model Of Α-Synucleinopathy: Expression Of Α-Synuclein A53t Variant In Hairy Root Cultures Leads To Proteostatic Stress And Dysregulation Of Iron Metabolism, Jasmina Kurepa, Kristen A. Bruce, Greg A. Gerhardt, Jan A. Smalle

Neurology Faculty Publications

Synucleinopathies, typified by Parkinson’s disease (PD), entail the accumulation of α- synuclein (αSyn) aggregates in nerve cells. Various αSyn mutants, including the αSyn A53T variant linked to early-onset PD, increase the propensity for αSyn aggregate formation. In addition to disrupting protein homeostasis and inducing proteostatic stress, the aggregation of αSyn in PD is associated with an imbalance in iron metabolism, which increases the generation of reactive oxygen species and causes oxidative stress. This study explored the impact of αSyn A53T expression in transgenic hairy roots of four medicinal plants (Lobelia cardinalis, Artemisia annua, Salvia miltiorrhiza, and Polygonum multiflorum). In all …

Systemic Symptoms In Huntington's Disease: A Comprehensive Review, Raja Mehanna, Joseph Jankovic

Faculty, Staff and Student Publications

Background: Although Huntington's disease (HD) is usually thought of as a triad of motor, cognitive, and psychiatric symptoms, there is growing appreciation of HD as a systemic illness affecting the entire body.

Objectives: This review aims to draw attention to these systemic non-motor symptoms in HD.

Methods: We identified relevant studies published in English by searching MEDLINE (from 1966 to September 2023), using the following subject headings: Huntington disease, autonomic, systemic, cardiovascular, respiratory, gastrointestinal, urinary, sexual and cutaneous, and additional specific symptoms.

Results: Data from 123 articles were critically reviewed with focus on systemic features associated with HD, such as …

Voiding Phase Dysfunction In Multiple Sclerosis: Contemporary Review Of Terminology, Diagnosis, Management, And Future Directions, Catherine Frances Ingram, John A Lincoln, Rose Khavari

Faculty, Staff and Student Publications

Lower urinary tract symptoms (LUTS) are highly prevalent in individuals with multiple sclerosis (MS). However, assessment of these symptoms is often hindered by vague definitions or absence of screening in asymptomatic patients. It is crucial to exercise caution when applying the non-neurogenic definition of urinary retention in this population. For men with MS experiencing persistent and treatment-resistant LUTS, urodynamic studies should be used to identify the underlying causes of symptoms. Although numerous therapies are presently accessible for managing LUTS in MS, there is a need for further investigation into emerging treatments such as percutaneous tibial nerve, and noninvasive brain stimulation.

Endovascular Thrombectomy Versus Intravenous Thrombolysis Of Posterior Cerebral Artery Occlusion Stroke, Silja Räty, Thanh N Nguyen, Simon Nagel, Davide Strambo, Patrik Michel, Christian Herweh, Muhammad M Qureshi, Mohamad Abdalkader, Pekka Virtanen, Marta Olive-Gadea, Marc Ribo, Marios Psychogios, Anh Nguyen, Joji B Kuramatsu, David Haupenthal, Martin Köhrmann, Cornelius Deuschl, Jordi Kühne Escolà, Jelle Demeestere, Robin Lemmens, Lieselotte Vandewalle, Shadi Yaghi, Liqi Shu, Volker Puetz, Daniel P O Kaiser, Johannes Kaesmacher, Adnan Mujanovic, Dominique Cornelius Marterstoc, Tobias Engelhorn, Anne Berberich, Piers Klein, Diogo C Haussen, Mahmoud H Mohammaden, Hend Abdelhamid, Isabel Fragata, Bruno Cunha, Michele Romoli, Wei Hu, Jianlon Song, Johanna T Fifi, Stavros Matsoukas, Sunil A Sheth, Sergio A Salazar-Marioni, João Pedro Marto, João Nuno Ramos, Milena Miszczuk, Christoph Riegler, Sven Poli, Khouloud Poli, Ashutosh P Jadhav, Shashvat Desai, Volker Maus, Maximilian Kaeder, Adnan H Siddiqui, Andre Monteiro, Tatu Kokkonen, Francesco Diana, Hesham E Masoud, Neil Suryadareva, Maxim Mokin, Shail Thanki, Pauli Ylikotila, Kemal Alpay, James E Siegler, Italo Linfante, Guilherme Dabus, Dileep Yavaghal, Vasu Saini, Christian H Nolte, Eberhart Siebert, Markus A Möhlenbruch, Peter A Ringleb, Raul G Nogueira, Uta Hanning, Lukas Meyer, Urs Fischer, Daniel Strbian

Faculty, Staff and Student Publications

Background and purpose: Posterior cerebral artery occlusion (PCAo) can cause long-term disability, yet randomized controlled trials to guide optimal reperfusion strategy are lacking. We compared the outcomes of PCAo patients treated with endovascular thrombectomy (EVT) with or without intravenous thrombolysis (IVT) to patients treated with IVT alone.

Methods: From the multicenter retrospective Posterior cerebraL ArTery Occlusion (PLATO) registry, we included patients with isolated PCAo treated with reperfusion therapy within 24 hours of onset between January 2015 and August 2022. The primary outcome was the distribution of the modified Rankin Scale (mRS) at 3 months. Other outcomes comprised 3-month excellent (mRS …

Treatments Perceived To Be Helpful For Neuropathic Pain After Traumatic Spinal Cord Injury: A Multicenter Cross-Sectional Survey Study, Thomas N Bryce, Chung-Ying Tsai, Andrew D Delgado, Sara J Mulroy, Abigail Welch, Diana D Cardenas, Heather B Taylor, Elizabeth R Felix

Faculty, Staff and Student Publications

DESIGN: Cross-sectional survey.

OBJECTIVE: To evaluate the perceived helpfulness of pharmacological and non-pharmacological interventions and their combinations for neuropathic pain (NeuP) and subcategories of NeuP after spinal cord injury (SCI).

SETTING: Six Spinal Cord Injury Model System Centers.

METHODS: Three hundred ninety one individuals at least one year post traumatic SCI were enrolled. A telephone survey was conducted to determine the pharmacologic and non-pharmacologic treatments used in the last 12 months for each participant's three worst pains, whether these treatments were "helpful", and if currently used, each treatments' effectiveness.

RESULTS: Two hundred twenty participants (56%) reported 354 distinct NeuPs. Pharmacological …

A Biophysically Constrained Brain Connectivity Model Based On Stimulation-Evoked Potentials, William Schmid, Isabel A Danstrom, Maria Crespo Echevarria, Joshua Adkinson, Layth Mattar, Garrett P Banks, Sameer A Sheth, Andrew J Watrous, Sarah R Heilbronner, Kelly R Bijanki, Alessandro Alabastri, Eleonora Bartoli

Faculty, Staff and Students Publications

BACKGROUND: Single-pulse electrical stimulation (SPES) is an established technique used to map functional effective connectivity networks in treatment-refractory epilepsy patients undergoing intracranial-electroencephalography monitoring. While the connectivity path between stimulation and recording sites has been explored through the integration of structural connectivity, there are substantial gaps, such that new modeling approaches may advance our understanding of connectivity derived from SPES studies.

NEW METHOD: Using intracranial electrophysiology data recorded from a single patient undergoing stereo-electroencephalography (sEEG) evaluation, we employ an automated detection method to identify early response components, C1, from pulse-evoked potentials (PEPs) induced by SPES. C1 components were utilized for a …

Piezo1 Regulates Meningeal Lymphatic Vessel Drainage And Alleviates Excessive Csf Accumulation, Dongwon Choi, Eunkyung Park, Joshua Choi, Renhao Lu, Jin Suh Yu, Chiyoon Kim, Luping Zhao, James Yu, Brandon Nakashima, Sunju Lee, Dhruv Singhal, Joshua P Scallan, Bin Zhou, Chester J Koh, Esak Lee, Young-Kwon Hong

Faculty, Staff and Students Publications

Piezo1 regulates multiple aspects of the vascular system by converting mechanical signals generated by fluid flow into biological processes. Here, we find that Piezo1 is necessary for the proper development and function of meningeal lymphatic vessels and that activating Piezo1 through transgenic overexpression or treatment with the chemical agonist Yoda1 is sufficient to increase cerebrospinal fluid (CSF) outflow by improving lymphatic absorption and transport. The abnormal accumulation of CSF, which often leads to hydrocephalus and ventriculomegaly, currently lacks effective treatments. We discovered that meningeal lymphatics in mouse models of Down syndrome were incompletely developed and abnormally formed. Selective overexpression of …

Targeted Accurate Rna Consensus Sequencing (Tarc-Seq) Reveals Mechanisms Of Replication Error Affecting Sars-Cov-2 Divergence, Catherine C Bradley, Chen Wang, Alasdair J E Gordon, Alice X Wen, Pamela N Luna, Matthew B Cooke, Brendan F Kohrn, Scott R Kennedy, Vasanthi Avadhanula, Pedro A Piedra, Olivier Lichtarge, Chad A Shaw, Shannon E Ronca, Christophe Herman

Duncan NRI Faculty and Staff Publications

RNA viruses, like SARS-CoV-2, depend on their RNA-dependent RNA polymerases (RdRp) for replication, which is error-prone. Monitoring replication errors is crucial for understanding the virus’s evolution. Current methods lack the precision to detect rare de novo RNA mutations, particularly in low-input samples such as those from patients. Here, we introduce a new targeted Accurate RNA Consensus sequencing method (tARC-seq) to accurately determine the mutation frequency and types in SARS-CoV-2, both in cell culture and clinical samples. Our findings show an average of 2.68×10−5 new errors per cycle with a C>T bias that cannot be solely attributed to APOBEC …

Multimodal Neurologic Monitoring In Patients Undergoing Extracorporeal Membrane Oxygenation, Khwaja Siddiqui, Muhammad U Hafeez, Ali Ahmad, Syed O Kazmi, Subhasis Chatterjee, Eric Bershad, Mohammad Hirzallah, Chethan Rao, Rahul Damani

Faculty, Staff and Students Publications

Introduction Extracorporeal membrane oxygenation (ECMO) is associated with a high rate of neurologic complications. Multimodal neurologic monitoring (MNM) has the potential for early detection and intervention. We examined the safety and feasibility of noninvasive MNM during ECMO. We hypothesized that survivors and non-survivors would have meaningful differences in transcranial Doppler (TCD) sonography and electroencephalographic (EEG) characteristics, which we aimed to identify. We also investigated adverse neurologic events and attempted to identify differences in EEG and TCD characteristics among patients based on the type of ECMO and the occurrence of these events. Material and methods We performed an observational study on …

A Comparison Of Spinal Reflex Function And Morphological Adaptations Of The Achilles Tendon Between Individuals Chronically Post-Stroke And Healthy Controls, Migi Contreras, Mira Seekins, Johanna Mendez, Trevor Diez

UNLV Theses, Dissertations, Professional Papers, and Capstones

Purpose/Hypothesis: The hallmark gait deviation in individuals with post-stroke hemiparesis is slow walking speed. Reduction in gait speed after stroke is influenced by decreased propulsive forces, which may likely be related to impaired spinal circuit function and spasticity of the paretic plantarflexors. Chronic muscle tone maladaptations in paretic ankle plantarflexors can result in altered Achilles tendon (AT) morphology, therefore leading to altered mechanical properties, force transmission capabilities and subsequent insufficient propulsive forces during walking. The purpose of this study is to characterize the chronic maladaptations in both the spinal Ia afferent loop excitability and AT morphology after stroke lesions in …

Standing Posterior Trunk Rotation With Adaptive Proprioceptive Toss, Jennifer Elvir

Electronic Theses and Dissertations

Parkinson’s disease (PD) is a remarkably individualized disease. Nearly every person’s trajectory is unique. One person may experience tremor at an early stage of the disease, while another may experience tremor at a later stage or even not at all. For all PD patients, for certain can expect increasing difficulty as the disease progresses. Parkinson’s disease is responsible for the loss of dopamine which displays itself most notably through motor and cognitive symptom disruption. Although Parkinson’s is a chronic and progressive condition that is irremediable, significant strides have been facilitated to help control and manage the trajectory of the disease. …

Abnormality Of Early White Matter Development In Tuberous Sclerosis Complex And Autism Spectrum Disorder: Longitudinal Analysis Of Diffusion Tensor Imaging Measures, Siddharth Srivastava, Fanghan Yang, Anna K Prohl, Peter E Davis, Jamie K Capal, Rajna Filip-Dhima, E Martina Bebin, Darcy A Krueger, Hope Northrup, Joyce Y Wu, Simon K Warfield, Mustafa Sahin, Bo Zhang, Tacern Study Group

Faculty, Staff and Student Publications

Background:

Abnormalities in white matter development may influence development of autism spectrum disorder in tuberous sclerosis complex (TSC). Our goals for this study were as follows: (1) use data from a longitudinal neuroimaging study of tuberous sclerosis complex (TACERN) to develop optimized linear mixed effects models for analyzing longitudinal, repeated diffusion tensor imaging metrics (fractional anisotropy, mean diffusivity) pertaining to select white matter tracts, in relation to positive Autism Diagnostic Observation Schedule–Second Edition classification at 36 months, and (2) perform an exploratory analysis using optimized models applied to all white matter tracts from these data.

Methods:

Eligible participants (3-12 months) …

Immune Checkpoint Therapy-Induced Lupus Nephritis, Imran Humza Hanif, Saifudeen Abdelrahim, Majd Al Shaarani, Huifang Lu, Raisa Ahmad, Sangeeta Goswami, Ala Abudayyeh

Faculty, Staff and Student Publications

No abstract provided.

Montelukast As A Repurposable Additive Drug For Standard-Efficacy Multiple Sclerosis Treatment: Emulating Clinical Trials With Retrospective Administrative Health Claims Data, Astrid M Manuel, Assaf Gottlieb, Leorah Freeman, Zhongming Zhao

Faculty, Staff and Student Publications

BACKGROUND: Effective and safe treatment options for multiple sclerosis (MS) are still needed. Montelukast, a leukotriene receptor antagonist (LTRA) currently indicated for asthma or allergic rhinitis, may provide an additional therapeutic approach.

OBJECTIVE: The study aimed to evaluate the effects of montelukast on the relapses of people with MS (pwMS).

METHODS: In this retrospective case-control study, two independent longitudinal claims datasets were used to emulate randomized clinical trials (RCTs). We identified pwMS aged 18-65 years, on MS disease-modifying therapies concomitantly, in de-identified claims from Optum's Clinformatics

RESULTS: pwMS treated with montelukast demonstrated a statistically significant 23.6% reduction in relapses compared …

Updating Data On Cognitive Impairment In Stroke Patients, Denisa Floriana Vasilica Pîrșcoveanu, Carmen Valeria Albu, Elena-Anca Târtea, Iulia Cristina Mărginean, George Alexandru Iacob, Elena Pinoșanu, Anca Maria Țucă, Cristina Maria Mărginean, Raluca Elena Sandu, Mircea Pîrșcoveanu

Journal of Mind and Medical Sciences

Vascular cognitive impairments are the expression of complex interactions between vascular etiology, risk factors (brain diseases, white matter lesions, etc.) and cellular changes at the brain level. Consequently, vascular cognitive impairment is highly dependent on the location, extent (volume of brain tissue affected) and number of lesions. Memory impairment is not necessarily characteristic of vascular cognitive decline, usually having an evolution with episodic exacerbations and multiple cerebrovascular attacks (cumulative effect), thus producing a gradual deterioration. In recent years, the concept of mild cognitive impairment has emerged as a potential form of predementia, but which can progress to different types of …

Alterations In Brain Morphometric Networks And Their Relationship With Memory Dysfunction In Patients With Type 2 Diabetes Mellitus, Rye Young Kim, Yoonji Joo, Eunji Ha, Haejin Hong, Chaewon Suh, Youngeun Shim, Hyeonji Lee, Yejin Kim, Jae-Hyoung Cho, Sujung Yoon, In Kyoon Lyoo

Faculty, Staff and Student Publications

Cognitive dysfunction, a significant complication of type 2 diabetes mellitus (T2DM), can potentially manifest even from the early stages of the disease. Despite evidence of global brain atrophy and related cognitive dysfunction in early-stage T2DM patients, specific regions vulnerable to these changes have not yet been identified. The study enrolled patients with T2DM of less than five years’ duration and without chronic complications (T2DM group, n=100) and demographically similar healthy controls (control group, n=50). High-resolution T1-weighted magnetic resonance imaging data were subjected to independent component analysis to identify structurally significant components indicative of morphometric networks. Within these networks, the groups’ …

Interaction Of High-Fat Diet And Brain Trauma Alters Adipose Tissue Macrophages And Brain Microglia Associated With Exacerbated Cognitive Dysfunction, Rebecca J Henry, James P Barrett, Maria Vaida, Niaz Z Khan, Oleg Makarevich, Rodney M Ritzel, Alan I Faden, Bogdan A Stoica

Faculty, Staff and Student Publications

Obesity increases the morbidity and mortality of traumatic brain injury (TBI). Detailed analyses of transcriptomic changes in the brain and adipose tissue were performed to elucidate the interactive effects between high-fat diet-induced obesity (DIO) and TBI. Adult male mice were fed a high-fat diet (HFD) for 12 weeks prior to experimental TBI and continuing after injury. High-throughput transcriptomic analysis using Nanostring panels of the total visceral adipose tissue (VAT) and cellular components in the brain, followed by unsupervised clustering, principal component analysis, and IPA pathway analysis were used to determine shifts in gene expression patterns and molecular pathway activity. Cellular …

Differentiating Epileptic And Psychogenic Non-Epileptic Seizures Using Machine Learning Analysis Of Eeg Plot Images, Steven Fussner, Aidan Boyne, Albert Han, Lauren A Nakhleh, Zulfi Haneef

Faculty, Staff and Students Publications

The treatment of epilepsy, the second most common chronic neurological disorder, is often complicated by the failure of patients to respond to medication. Treatment failure with anti-seizure medications is often due to the presence of non-epileptic seizures. Distinguishing non-epileptic from epileptic seizures requires an expensive and time-consuming analysis of electroencephalograms (EEGs) recorded in an epilepsy monitoring unit. Machine learning algorithms have been used to detect seizures from EEG, typically using EEG waveform analysis. We employed an alternative approach, using a convolutional neural network (CNN) with transfer learning using MobileNetV2 to emulate the real-world visual analysis of EEG images by epileptologists. …

Evaluating Nurses’ Turnover Intention And Organizational Commitment Following Stroke Unit Staffing Changes: An Evidence-Based Quality Initiative, Heather M. Tatusko Phiri

Doctor of Nursing Practice Scholarly Projects

Nurses are known to be overworked, overwhelmed, undervalued, and understaffed at dangerous levels throughout various inpatient hospital units across the United States (U.S.). Hospital registered nurse (RN) turnover is a significant issue that has accelerated since the COVID-19 pandemic, resulting in economic impacts and other burdens for organizations, individuals, and communities. Evidence suggests that evaluating Registered Nurses’ Turnover intention (NTI) and Organizational Commitment (OC) can help maintain a ready and capable team of skilled RNs; however, most healthcare organizations (HCOs) do not collect or analyze NTI and OC data and focus on staffing numbers and monetary incentives to get adequate …

Examining The Effect Of Genes On Depression As Mediated By Smoking And Modified By Sex, Kirsten Voorhies, Julian Hecker, Sanghun Lee, Georg Hahn, Dmitry Prokopenko, Merry-Lynn Mcdonald, Alexander C Wu, Ann Wu, John E Hokanson, Michael H Cho, Christoph Lange, Karin F Hoth, Sharon M Lutz

Faculty, Staff and Student Publications

Depression is heritable, differs by sex, and has environmental risk factors such as cigarette smoking. However, the effect of single nucleotide polymorphisms (SNPs) on depression through cigarette smoking and the role of sex is unclear. In order to examine the association of SNPs with depression and smoking in the UK Biobank with replication in the COPDGene study, we used counterfactual-based mediation analysis to test the indirect or mediated effect of SNPs on broad depression through the log of pack-years of cigarette smoking, adjusting for age, sex, current smoking status, and genetic ancestry (via principal components). In secondary analyses, we adjusted …