1,273 results match your criteria Epilepsy Sudden Unexpected Death in

SUDEP education among U.S. and international neurology trainees.

Epilepsy Behav 2021 Jun 7;121(Pt A):108098. Epub 2021 Jun 7.

Department of Neurology, New York University Grossman School of Medicine, New York, NY, USA.

We evaluated baseline sudden unexpected death in epilepsy (SUDEP) knowledge and counseling practices among national and international adult neurology trainees with a 12-question online survey. The survey was emailed to all 169 U.S. Read More

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Cardiorespiratory findings in epilepsy: A recent review on outcomes and pathophysiology.

J Neurosci Res 2021 Jun 9. Epub 2021 Jun 9.

Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Malaysia.

Epilepsy is a debilitating disorder of uncontrollable recurrent seizures that occurs as a result of imbalances in the brain excitatory and inhibitory neuronal signals, that could stem from a range of functional and structural neuronal impairments. Globally, nearly 70 million people are negatively impacted by epilepsy and its comorbidities. One such comorbidity is the effect epilepsy has on the autonomic nervous system (ANS), which plays a role in the control of blood circulation, respiration and gastrointestinal function. Read More

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Pediatric epilepsy and psychoeducational interventions: A review of the literature.

A Maya Kaye

Epilepsy Behav 2021 Jun 6;121(Pt A):108084. Epub 2021 Jun 6.

Tulane University School of Social Work, United States. Electronic address:

For many individuals, living with epilepsy is truly a family affair throughout the life span. When it comes to childhood epilepsy, the unpredictability of seizure patterns, comorbid conditions, the risk of sudden unexpected death in epilepsy (SUDEP), and societal stigma can be emotionally taxing on children and their primary caregivers. To this end, this article proposes to review psychoeducational interventions provided to primary caregivers of children with an epilepsy diagnosis and the impact of such interventions on general parental coping skills. Read More

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Mortality in tuberous sclerosis complex.

Epilepsy Behav 2021 Jun 1;121(Pt A):108032. Epub 2021 Jun 1.

Saint Barnabas Institute of Neurology and Neurosurgery, United States; Department of Neurology, NYU Grossman School of Medicine, United States. Electronic address:

We studied mortality in tuberous sclerosis complex (TSC) by analyzing data from the Tuberous Sclerosis Alliance Natural History Database of 2233 patients from 18 United States TSC centers. Among 31 decedents with data; mean age of death was 29 years. Cause of death could be determined in 26 cases: 11 definitely related to TSC, 14 possibly related to TSC, and 1 unrelated to TSC. Read More

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Improving prediction of sudden unexpected death in epilepsy: From SUDEP-7 to SUDEP-3.

Epilepsia 2021 Jun 4. Epub 2021 Jun 4.

Department of Neurology, Thomas Jefferson University Hospital, Philadelphia, PA, USA.

Objective: Sudden unexpected death in epilepsy (SUDEP) is a significant cause of mortality in epilepsy. The aim of this study is to evaluate the validity of the SUDEP-7 inventory and its components as tools for predicting SUDEP risk, and to develop and validate an improved inventory.

Methods: The study included 28 patients who underwent video-electroencephalography (EEG) monitoring and later died of SUDEP, and 56 age- and sex-matched control patients with epilepsy. Read More

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Electrocardiographic Abnormalities and Mortality in Epilepsy Patients.

Medicina (Kaunas) 2021 May 16;57(5). Epub 2021 May 16.

Faculty of Medicine, University of Latvia, 19 Raina Blvd., LV-1586 Riga, Latvia.

: People with epilepsy (PWE) have a 2-3 times higher mortality rate than the general population. Sudden unexpected death in epilepsy (SUDEP) comprises a significant proportion of premature deaths, whereas sudden cardiac death (SCD) is among the leading causes of sudden death in the general population. Cardiac pathologies are significantly more prevalent in PWE. Read More

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The brain-heart interaction in epilepsy: implications for diagnosis, therapy, and SUDEP prevention.

Ann Clin Transl Neurol 2021 May 28. Epub 2021 May 28.

IRCCS Istituto Giannina Gaslini, Genova, Italy.

The influence of the central nervous system and autonomic system on cardiac activity is being intensively studied, as it contributes to the high rate of cardiologic comorbidities observed in people with epilepsy. Indeed, neuroanatomic connections between the brain and the heart provide links that allow cardiac arrhythmias to occur in response to brain activation, have been shown to produce arrhythmia both experimentally and clinically. Moreover, seizures may induce a variety of transient cardiac effects, which include changes in heart rate, heart rate variability, arrhythmias, asystole, and other ECG abnormalities, and can trigger the development of Takotsubo syndrome. Read More

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Automated Analysis of Risk Factors for Postictal Generalized EEG Suppression.

Front Neurol 2021 11;12:669517. Epub 2021 May 11.

National Institute of Neurological Disorders and Stroke (NINDS) Center for Sudden Unexpected Death in Epilepsy (SUDEP) Research, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States.

Currently, there is some ambiguity over the role of postictal generalized electro-encephalographic suppression (PGES) as a biomarker in sudden unexpected death in epilepsy (SUDEP). Visual analysis of PGES, known to be subjective, may account for this. In this study, we set out to perform an analysis of PGES presence and duration using a validated signal processing tool, specifically to examine the association between PGES and seizure features previously reported to be associated with visually analyzed PGES. Read More

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Near-sudden unexpected death in a patient with epilepsy undergoing hemodialysis: a case report.

CEN Case Rep 2021 May 26. Epub 2021 May 26.

Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Minato-ku, Tokyo, 105-8461, Japan.

Sudden unexpected death in epilepsy (SUDEP) has been defined as a sudden/unexpected, witnessed/unwitnessed, nontraumatic, and nondrowning death in epileptic patients with/without seizure evidence and documented status epilepticus. Identified as the leading cause of epilepsy-related deaths, SUDEP cases are highly unrecognized and underreported due to diagnostic difficulty. We report a case of a successfully revived hemodialysis patient who developed cardiopulmonary arrest after a witnessed convulsive seizure. Read More

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Pregabalin as adjunctive therapy in adult and pediatric patients with generalized tonic-clonic seizures: A randomized, placebo-controlled trial.

Epilepsia Open 2021 Jun 16;6(2):381-393. Epub 2021 May 16.

Pfizer Inc, Groton, CT, USA.

Objective: Generalized tonic-clonic (GTC) seizures are the most common type of generalized seizure and more common in children than adults. This phase 3 study evaluated the efficacy and safety of pregabalin for GTC seizures in adults and children with epilepsy.

Methods: This randomized, double-blind, multicenter study evaluated pregabalin (5 mg/kg/day or 10 mg/kg/day) vs placebo as adjunctive therapy for 10 weeks (following a 2-week dose escalation), in pediatric and adult patients (aged 5-65 years) with GTC seizures. Read More

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Ultra-short heart rate variability reliability for cardiac autonomic tone assessment in mesial temporal lobe epilepsy.

Epilepsy Res 2021 Aug 8;174:106662. Epub 2021 May 8.

Center for Applied Neuroscience, University Hospital (HU), UFSC, Florianópolis, SC, Brazil; Graduate Program in Neuroscience, UFSC, Florianópolis, SC, Brazil; Neurology Division, Department of Internal Medicine, University Hospital, UFSC, Florianópolis, SC, Brazil; Graduate Program in Medical Sciences, UFSC, Florianópolis, Brazil; Center for Epilepsy Surgery of Santa Catarina (CEPESC), HU, UFSC, Florianópolis, SC, Brazil. Electronic address:

Autonomic dysfunction in epilepsy is well-described. Heart rate variability (HRV) is a useful method to evaluate autonomic cardiac tone. Cardiac dysfunction may be involved in sudden unexpected death in epilepsy (SUDEP). Read More

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The baboon in epilepsy research: Revelations and challenges.

Epilepsy Behav 2021 May 19;121(Pt A):108012. Epub 2021 May 19.

Radiology, UT Health San Antonio, San Antonio, TX, United States; Research Imaging Institute, UT Health San Antonio, San Antonio, TX, United States.

The baboon offers a natural model for genetic generalized epilepsy with photosensitivity. In this review, we will summarize some of the more important clinical, neuroimaging, and elctrophysiological findings form recent work performed at the Southwest National Primate Research Center (SNPRC, Texas Biomedical Research Institute, San Antonio, Texas), which houses the world's largest captive baboon pedigree. Due to the phylogenetic proximity of the baboon to humans, many of the findings are readily translatable, but there may be some important differences, such as the mutlifocality of the ictal and interictal epileptic discharges (IEDs) on intracranial electroencephalography (EEG) and greater parieto-occipital connectivity of baboon brain networks compared to juvenile myoclonic epilepsy in humans. Read More

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Sudden unexpected death in epilepsy: Experience of neurologists in Saudi Arabia.

Epilepsy Behav 2021 May 19;121(Pt A):108025. Epub 2021 May 19.

Division of Neurology, King Fahd Central Hospital, Jazan, Saudi Arabia.

Importance: Sudden unexpected death in epilepsy (SUDEP) may account for up to 17% of all deaths in epilepsy. However, it is unknown if neurologists discuss this risk with patients.

Objective: This study aimed to examine the understanding and practices of SUDEP by neurologists in Saudi Arabia. Read More

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Probable Sudden Unexpected Death in Dogs With Epilepsy (pSUDED).

Front Vet Sci 2021 27;8:600307. Epub 2021 Apr 27.

Department of Small Animal Medicine and Surgery, University of Veterinary Medicine, Hannover, Germany.

Sudden unexpected death in human epileptic patients (SUDEP) is defined as death related to recurrent unprovoked seizures, death occurring unexpectedly, and suddenly in a patient with reasonable state of health, without an obvious medical cause of death, trauma, asphyxia, or intractable status epilepticus, and in post mortem examination no obvious reason for death can be found. "Probable SUDEP" (pSUDEP) is defined as SUDEP not confirmed pathologically. The adapted abbreviation for dogs is used in the following: "pSUDED" (probable sudden unexpected death in dogs with epilepsy). Read More

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Early onset epilepsy and sudden unexpected death in epilepsy with cardiac arrhythmia in mice carrying the early infantile epileptic encephalopathy 47 gain-of-function FHF1(FGF12) missense mutation.

Epilepsia 2021 May 13. Epub 2021 May 13.

Department of Biological Sciences, Hunter College of City University of New York, New York, New York, USA.

Objective: Fibroblast growth factor homologous factors (FHFs) are brain and cardiac sodium channel-binding proteins that modulate channel density and inactivation gating. A recurrent de novo gain-of-function missense mutation in the FHF1(FGF12) gene (p.Arg52His) is associated with early infantile epileptic encephalopathy 47 (EIEE47; Online Mendelian Inheritance in Man database 617166). Read More

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Regional microglial populations in central autonomic brain regions in SUDEP.

Epilepsia 2021 Jun 4;62(6):1318-1328. Epub 2021 May 4.

Departments of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, UK.

Objective: Sudden unexpected death in epilepsy (SUDEP) may arise as a result of autonomic dysfunction during a seizure. The central autonomic networks (CANs) modulate brainstem cardiorespiratory regulation. Recent magnetic resonance imaging (MRI) studies in SUDEP have shown cortical and subcortical volume changes and altered connectivity between CAN regions, but the pathological correlate is unknown. Read More

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Towards Mutation-Specific Precision Medicine in Atypical Clinical Phenotypes of Inherited Arrhythmia Syndromes.

Int J Mol Sci 2021 Apr 10;22(8). Epub 2021 Apr 10.

Department of Cardiovascular Medicine, Gunma University Graduate School of Medicine, Maebashi 371-8511, Gunma, Japan.

Most causal genes for inherited arrhythmia syndromes (IASs) encode cardiac ion channel-related proteins. Genotype-phenotype studies and functional analyses of mutant genes, using heterologous expression systems and animal models, have revealed the pathophysiology of IASs and enabled, in part, the establishment of causal gene-specific precision medicine. Additionally, the utilization of induced pluripotent stem cell (iPSC) technology have provided further insights into the pathophysiology of IASs and novel promising therapeutic strategies, especially in long QT syndrome. Read More

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Sudden Unexpected Death in Epilepsy: A Personalized Prediction Tool.

Neurology 2021 May 28;96(21):e2627-e2638. Epub 2021 Apr 28.

From the NIHR University College London Hospitals Biomedical Research Centre (A.J., B.D., J.W.S.), UCL Queen Square Institute of Neurology, London, UK; Division of Biostatistics, Department of Population Health (C.O.), New York University Langone Health; Department of Epidemiology (D.H.), Columbia University Medical Center; Comprehensive Epilepsy Center (S.D., O.D.), New York University Langone Medical Center, New York; Epilepsy Unit (M.J.B.), University of Glasgow, Scotland; Department of Clinical Neuroscience (T.T.), Karolinska Institutet, Stockholm, Sweden; Chalfont Centre for Epilepsy (J.W.S.), Chalfont St Peter, UK; Stichting Epilepsie Instellingen Nederland (SEIN) (J.W.S.), Heemstede, the Netherlands; and MINCEP Comprehensive Epilepsy Center (T.S.W.), University of Minnesota, Minneapolis.

Objective: To develop and validate a tool for individualized prediction of sudden unexpected death in epilepsy (SUDEP) risk, we reanalyzed data from 1 cohort and 3 case-control studies undertaken from 1980 through 2005.

Methods: We entered 1,273 epilepsy cases (287 SUDEP, 986 controls) and 22 clinical predictor variables into a Bayesian logistic regression model.

Results: Cross-validated individualized model predictions were superior to baseline models developed from only average population risk or from generalized tonic-clonic seizure frequency (pairwise difference in leave-one-subject-out expected log posterior density = 35. Read More

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Proteomics and Transcriptomics of the Hippocampus and Cortex in SUDEP and High-Risk SUDEP Patients.

Neurology 2021 May 28;96(21):e2639-e2652. Epub 2021 Apr 28.

From the Comprehensive Epilepsy Center (D.F.L., C.V., S.D., D.F., O.D.), Proteomics Laboratory (E.K., S.N., B.U.), Division of Advanced Research Technologies, and Department of Biochemistry and Molecular Pharmacology (B.U.), NYU School of Medicine; Department of Neurology (D.F.L., G.P., A.F., E.D., S.D., D.F., T.W., B.U., O.D.), Center for Cognitive Neurology (G.P., A.F., E.D., T.W.), Department of Pathology (T.W.), and Department of Psychiatry (T.W.), NYU Langone Health and School of Medicine, New York; Department of (Neuro)Pathology (J.D.M., J.J.A., E.A.v.V., E.A.), Amsterdam UMC, University of Amsterdam, Amsterdam Neuroscience, Meibergdreef 9, the Netherlands; Alzheimer's and Prion Diseases Team (G.P.), Paris Brain Institute, CNRS, UMR 7225, INSERM 1127, Sorbonne University UM75, Paris, France; Brain & Mind Centre and School of Medical Sciences (E.D.), Faculty of Medicine and Health, University of Sydney, Australia; Biomedical Hosting LLC (M.A.), Arlington, MA; School of Biotechnology and Biomolecular Sciences (B.J.C., M.J.), University of New South Wales, Sydney, Australia; Amsterdam UMC (J.C.B., S.I.), Vrije Universiteit Amsterdam, Department of Neurosurgery, Amsterdam Neuroscience, De Boelelaan 1117; Swammerdam Institute for Life Sciences (E.A.v.V.), Center for Neuroscience, University of Amsterdam, the Netherlands; Department of Clinical and Experimental Epilepsy (B.D., C.S., M.T.), University College London Institute of Neurology, UK; and Stichting Epilepsie Instellingen Nederland (R.T., E.A.), Heemstede, the Netherlands

Objective: To identify the molecular signaling pathways underlying sudden unexpected death in epilepsy (SUDEP) and high-risk SUDEP compared to control patients with epilepsy.

Methods: For proteomics analyses, we evaluated the hippocampus and frontal cortex from microdissected postmortem brain tissue of 12 patients with SUDEP and 14 with non-SUDEP epilepsy. For transcriptomics analyses, we evaluated hippocampus and temporal cortex surgical brain tissue from patients with mesial temporal lobe epilepsy: 6 low-risk and 8 high-risk SUDEP as determined by a short (<50 seconds) or prolonged (≥50 seconds) postictal generalized EEG suppression (PGES) that may indicate severely depressed brain activity impairing respiration, arousal, and protective reflexes. Read More

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Kv1.1 subunits localize to cardiorespiratory brain networks in mice where their absence induces astrogliosis and microgliosis.

Mol Cell Neurosci 2021 Jun 24;113:103615. Epub 2021 Apr 24.

Department of Cellular Biology & Anatomy, Louisiana State University Health Sciences Center, Shreveport, LA, USA; Department of Biological Sciences, Southern Methodist University, Dallas, TX, USA. Electronic address:

Cardiorespiratory collapse following a seizure is a suspected cause of sudden unexpected death in epilepsy (SUDEP), the leading cause of epilepsy-related mortality. In the commonly used Kcna1 gene knockout (Kcna1) mouse model of SUDEP, cardiorespiratory profiling reveals an array of aberrant breathing patterns that could contribute to risk of seizure-related mortality. However, the brain structures mediating these respiratory abnormalities remain unknown. Read More

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Mutations Are Associated With Benign Epilepsy of Childhood With Centrotemporal Spikes With or Without Arrhythmia.

Front Neurosci 2021 7;15:629610. Epub 2021 Apr 7.

Institute of Neuroscience and Department of Neurology of the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou, China.

encodes ryanodine receptor 2 protein (RYR-2) that is mainly located on endoplasmic reticulum membrane and regulates intracellular calcium concentration. The RYR-2 protein is ubiquitously distributed and highly expressed in the heart and brain. Previous studies have identified the mutations in the etiology of arrhythmogenic right ventricular dysplasia 2 and catecholaminergic polymorphic ventricular tachycardia. Read More

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Origin of post-ictal and post-anesthesia adverse effects and possibly of SUDEP.

Med Hypotheses 2021 Jun 9;151:110591. Epub 2021 Apr 9.

Physics Dept., Sami Shamoon College of Engineering, Beer-Sheva, Israel.

The origin of post-ictal malfunctions is debatable. We want to propose a novel idea of a cause of these adverse results occurring following epileptic seizures and anesthesia. Previously we have put forward the idea that epileptic seizures termination is caused by the function of the glymphatic system in the brain. Read More

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Multi-system Monitoring for Identification of Seizures, Arrhythmias and Apnea in Conscious Restrained Rabbits.

J Vis Exp 2021 03 27(169). Epub 2021 Mar 27.

Department of Pharmacology, Upstate Medical University;

Patients with ion channelopathies are at a high risk of developing seizures and fatal cardiac arrhythmias. There is a higher prevalence of heart disease and arrhythmias in people with epilepsy (i.e. Read More

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Vagus nerve stimulation does not alter brainstem nuclei morphology in patients with refractory epilepsy.

Epilepsy Behav 2021 05 7;118:107940. Epub 2021 Apr 7.

Department of Clinical Neurological Sciences, London Health Sciences Centre, Western University, London, Ontario, Canada; Department of Pathology and Lab Medicine, London Health Sciences Centre, Western University, London, Ontario, Canada. Electronic address:

Objective: To describe morphological characteristics of the brainstem nuclei in response to chronic vagus nerve stimulation (VNS) in patients with refractory epilepsy.

Background: VNS is a treatment option for individuals with medically refractory epilepsy. While treatment with VNS may achieve up to 50% seizure reduction and is protective against sudden unexpected death in epilepsy (SUDEP), its mechanism of action is not fully understood. Read More

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Cardiac Autonomic Dysfunction and Risk of Sudden Unexpected Death in Epilepsy.

Neurology 2021 May 9;96(21):e2619-e2626. Epub 2021 Apr 9.

From the Department of Clinical Neurophysiology (W.S., A.L., B.P.), Amiens University Medical Center; Equipe Chimere UR7516-Université Picardie Jules Verne (W.Z.), Amiens; Neurology Department (A.N.), Rennes University Hospital, CIC 1414, LTSI, INSERM U1099; Department of Clinical Neurophysiology (P.D.)and INSERM CIC-IT 1403 (J.D.j.), Lille University Medical Center; Neurology Department (P.C., L.M.), University Hospital, St Etienne; INSERM U 1028 (L.M.), CNRS UMR, ''Central Integration of Pain'' Group, Lyon Neuroscience Research Center; Department of Clinical Neurophysiology (B.G.), Limoges University Medical Center; and Unité de Recherche Clinique et Epidémiologie (Département Information Médicale) (M.F., M.-C.P.), CHU Montpellier, and INSERM (M.-C.P.), Centre d'Investigation Clinique 1411, Université Montpellier, France.

Objective: We aimed to test whether patients who died of sudden unexpected death in epilepsy (SUDEP) had an abnormal cardiac autonomic response to sympathetic stimulation by hyperventilation.

Methods: We conducted a retrospective, observational, case-control study of a group of patients who died of SUDEP and controls who were matched to the patients for epilepsy type, drug resistance, sex, age at EEG recording, age at onset of epilepsy, and duration of epilepsy. We analyzed the heart rate (HR) and HR variability (HRV) at rest and during and after hyperventilation performed during the patient's last EEG recording before SUDEP. Read More

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The SANTÉ study at 10 years of follow-up: Effectiveness, safety, and sudden unexpected death in epilepsy.

Epilepsia 2021 Jun 8;62(6):1306-1317. Epub 2021 Apr 8.

Department of Neurology, Stanford University, Stanford, California, USA.

Objective: We evaluated the efficacy and safety of deep brain anterior thalamus stimulation after 7 and 10 years, and report the incidence of sudden unexpected death in epilepsy (SUDEP) and overall mortality in adults in the Stimulation of the Anterior Nucleus of the Thalamus for Epilepsy (SANTÉ) study.

Methods: After the 3-month blinded and 9-month unblinded phases, subjects continued to be assessed during long-term follow-up (LTFU) and later a continued therapy access phase (CAP), to further characterize adverse events and the incidence of SUDEP. Stimulus parameter and medication changes were allowed. Read More

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SCN8A-related developmental and epileptic encephalopathy with ictal asystole requiring cardiac pacemaker implantation.

Brain Dev 2021 Apr 4. Epub 2021 Apr 4.

Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.

Introduction: SCN8A-related epilepsy has various phenotypes. In particular, patients with developmental and epileptic encephalopathy (DEE) are resistant to antiepileptic drugs and may present with autonomic symptoms, such as marked bradycardia and apnea during seizures, and thus have an increased risk of sudden death. Herein, we report a case of very severe SCN8A-related epilepsy necessitating cardiac pacemaker implantation because of repetitive ictal asystole. Read More

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