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1.
Neuroimage ; : 120686, 2024 Jun 11.
Article in English | MEDLINE | ID: mdl-38871037

ABSTRACT

Centromedian nucleus (CM) is one of several intralaminar nuclei of the thalamus and is thought to be involved in consciousness, arousal, and attention. CM has been suggested to play a key role in the control of attention, by regulating the flow of information to different brain regions such as the ascending reticular system, basal ganglia, and cortex. While the neurophysiology of attention in visual and auditory systems has been studied in animal models, combined single unit and LFP recordings in human have not, to our knowledge, been reported. Here, we recorded neuronal activity in the CM nucleus in 11 patients prior to insertion of deep brain stimulation electrodes for the treatment of epilepsy while subjects performed an auditory attention task. Patients were requested to attend and count the infrequent (p=0.2) odd or "deviant" tones, ignore the frequent standard tones and report the total number of deviant tones at trial completion. Spikes were discriminated, and LFPs were band pass filtered (5-45Hz). Average peri-stimulus time histograms and spectra were constructed by aligning on tone onsets and statistically compared. The firing rate of CM neurons showed selective, multi-phasic responses to deviant tones in 81% of the tested neurons. Local field potential analysis showed selective beta and low gamma (13-45 Hz) modulations in response to deviant tones, also in a multi-phasic pattern. The current study demonstrates that CM neurons are under top-down control and participate in the selective processing during auditory attention and working memory. These results, taken together, implicate the CM in selective auditory attention and working memory and support a role of beta and low gamma oscillatory activity in cognitive processes. It also has potential implications for DBS therapy for epilepsy and non-motor symptoms of PD, such as apathy and other disorders of attention.

2.
Epilepsy Behav ; 114(Pt A): 107150, 2021 01.
Article in English | MEDLINE | ID: mdl-32507294

ABSTRACT

OBJECTIVE: Psychogenic nonepileptic seizures (PNES) are one of the most common differential diagnoses of epilepsy. This study provides an overview of diagnostic and treatment services for patients with PNES across Latin America. METHODS: In 2017-2018, clinicians practicing in Latin America with responsibilities for patients with PNES were contacted to respond to a survey regarding the management of this disorder developed by the International League Against Epilepsy (ILAE) PNES Task Force. RESULTS: Three hundred and sixty responses from 17 Latin American countries were analyzed. Most respondents were neurologists (81%) under 40 years of age (61%). Fifty-seven percent of professionals stated that they personally diagnose PNES, but only 33% stated that they provide follow-up, and only 20% that they recommend treatment. Many participants (54%) characterized themselves as either unfamiliar with the diagnosis or inexperienced in arranging treatment. Most respondents reported having access to brain magnetic resonance imaging (MRI; 88%) and routine electroencephalogram (EEG; 71%), 64% have the access to video-EEG longer than 8 h, and 54% of professionals performed video-EEG to confirm PNES diagnoses. Although cognitive-behavioral therapy was recognized as the treatment of choice (by 82% of respondents), there was little access to it (60%). In contrast, a high proportion of respondents reported using antidepressant (67%), antiseizure (57%), and antipsychotic medications (54%) as treatments for PNES. SIGNIFICANCE: This study reveals several deficiencies in the diagnosis and treatment of patients with PNES in Latin America. The barriers are reinforced by lack of knowledge among the specialists and poor healthcare system support. There is inadequate access to prolonged video-EEG and psychotherapy. An inappropriate use of antiseizure medicines seems commonplace, and there are low follow-up rates by neurologists after the diagnosis. Multidisciplinary guidelines are required to improve the approach of patients with PNES.


Subject(s)
Epilepsy , Psychophysiologic Disorders , Electroencephalography , Epilepsy/diagnosis , Epilepsy/epidemiology , Epilepsy/therapy , Humans , Latin America/epidemiology , Seizures/diagnosis , Seizures/therapy , Surveys and Questionnaires
3.
Seizure ; 81: 287-291, 2020 Oct.
Article in English | MEDLINE | ID: mdl-32927243

ABSTRACT

PURPOSE: The Status Epilepticus Severity Score (STESS) is one of the most well-known clinical scoring systems to predict mortality in status epilepticus (SE). The objective of this study was to validate STESS in a Colombian population. METHOD: We evaluated historical data of adult patients (age ≥16 years) with a clinical or electroencephalographic diagnosis of SE admitted between 2014 and 2017. Prospectively, we included patients admitted from January to June of 2018. The primary outcome was in-hospital mortality. Receiver operating characteristic (ROC)-analysis, determination of best cutoff values, sensitivity, specificity, and positive and negative likelihood ratios were performed. RESULTS: The sample was 395 patients, with in-hospital mortality of 16.8 %. The area under the ROC curve for STESS was 0.84. A cutoff point of ≥3 produced the highest sensitivity of 84.9 % (95 % CI 73.9 %-92.5 %) and a specificity of 65.7 % (95 % CI 60.2 %-70.8 %), with a positive likelihood ratio of 2.5 and a negative likelihood ratio of 0.2. CONCLUSIONS: STESS is a useful tool to predict mortality in patients with SE. In Medellin, Colombia, a STESS < 3 allows the identification of the patients who survive reliably. Those patients with a score <3 may have a better prognosis, and treatment with fewer side effects than anaesthetics could be suggested, always remembering the importance of the treating physician's clinical judgement.


Subject(s)
Status Epilepticus , Adolescent , Adult , Colombia , Hospital Mortality , Hospitals , Humans , Prognosis , ROC Curve , Severity of Illness Index , Status Epilepticus/diagnosis
4.
Epilepsy Behav ; 112: 107344, 2020 11.
Article in English | MEDLINE | ID: mdl-32759027

ABSTRACT

Psychogenic nonepileptic seizures (PNES) are episodes of seizure-like symptoms that are not associated with epileptiform discharges on electroencephalogram (EEG). They can be remarkably difficult to distinguish from epileptic seizures: both may involve alterations in mental status and behavior, sensory or perceptual disturbances, as well as simple or complex motor patterns. Pictorial expressions of PNES have always attracted attention from the lay public and medical practitioners alike, by showing the rich variety of semiologies seen in the condition and its differences with epileptic seizures. In this article, we present two new contemporary artistic descriptions by the Canadian artist Iris Hauser about PNES. The depictions highlight key signs seen in PNES such as "eyes closed during events", "the hyperextension of the back and limbs", and the "claw-like finger posturing". We believe that the drawings can provide a valuable educational component in the initial assessment of patients suspected of having PNES as a training tool to identify and refer patients for more advanced testing.


Subject(s)
Epilepsy , Mental Disorders , Canada , Electroencephalography , Epilepsy/diagnosis , Humans , Seizures/diagnosis
5.
Seizure ; 73: 46-50, 2019 Dec.
Article in English | MEDLINE | ID: mdl-31734466

ABSTRACT

PURPOSE: Using an adult cohort of patients with focal epilepsy, we aimed to identify risk factors for development of drug-resistant epilepsy, which if identifiable would allow patients to receive appropriate counsel and earlier surgical treatment. METHODS: This is a case-control study nested within a cohort, 146 adult patients with focal epilepsy were included. Definitions were used in accordance with ILAE criteria. The odds ratio and its confidence interval were calculated. We performed a logistic regression analysis. RESULTS: Seventy-one [48.6%] patients met the criteria for drug-resistant epilepsy [cases] and 75 [51.4%] patients were controls. The mean age of patients was 44.5 ± 16.4 years. The most significant variables associated with developing drug-resistant epilepsy include younger age at diagnosis [18.75 vs. 32.2, p < 0.001], years of evolution of epilepsy [22.54 vs. 16.05, p < 0.001], number of AED [4.8 vs. 2.87, p < 0.001], complex partial seizures [51 vs. 35 OR 2.9, p = 0.002], having more than one seizure per month [51 vs. 38, p = 0.009], bi-temporal focus [14 vs. 4 p = 0.008] and mesial temporal sclerosis [23 vs. 11 p = 0.01]. Good response to first AED [7 vs. 29 OR 0.2, p = 0.001] and epilepsy secondary to encephalomalacia [8 vs. 20 OR 0.35, p = 0.018] might be protective factors against drug resistant epilepsy. CONCLUSIONS: Longer time of epilepsy evolution, high frequency of seizures, complex partial seizure presentation, higher number of antiepileptic drugs, mesial temporal sclerosis and bitemporal epilepsy are predictive factors of subsequent pharmacoresistance.


Subject(s)
Drug Resistant Epilepsy , Epilepsies, Partial , Adult , Anticonvulsants/therapeutic use , Case-Control Studies , Drug Resistant Epilepsy/drug therapy , Drug Resistant Epilepsy/pathology , Drug Resistant Epilepsy/physiopathology , Epilepsies, Partial/drug therapy , Epilepsies, Partial/pathology , Epilepsies, Partial/physiopathology , Female , Humans , Male , Middle Aged , Risk Factors
6.
Epilepsia ; 60(8): 1610-1618, 2019 08.
Article in English | MEDLINE | ID: mdl-31260102

ABSTRACT

OBJECTIVE: Forced normalization (FN) is an intriguing phenomenon characterized by the emergence of psychiatric disturbances following the establishment of seizure control or reduction in the epileptic activity in a patient with previous uncontrolled epilepsy. We aim to describe the clinical characteristics of the condition. METHODS: We conducted a systematic review on MEDLINE, EMBASE, Cochrane, and Scielo from January 1953 to January 2018. Clinical, electrographic, and imaging data were gathered. We considered all outcomes in children and adults. We performed no meta-analyses due to the limited available data. RESULTS: Of 2606 abstracts identified, 36 fulfilled the FN diagnostic criteria; 193 FN episodes were evaluated and 77 of them were analyzed extensively. Sixty percent of cases were female. Mean age ± standard deviation (SD) was 28.3 ± 14.2 years. The majority of patients had focal (80%) symptomatic (44%) epilepsy. Most patients reported a high ictal frequency (58%) and were on polytherapy (51%). Patients presented psychosis (86.4%), mood disorders (25.8%), and dissociation (4.5%) as the main manifestations. In the psychosis group, persecutory (52.6%) and reference (47.3%) delusions were frequent. FN was provoked by an antiepileptic drug (AED) (48.5%) mainly levetiracetam, epilepsy surgery (31.8%), or vagus nerve stimulation (13.6%). Treatment was homogeneous including anticonvulsant withdrawal (47%) or taper (25%); antipsychotics were initiated in the majority of cases (73%). Psychiatric symptoms were partially controlled in 35%, with complete resolution of symptoms in the remaining 65% of cases. The majority of patients (87%) with AED trigger and withdrawal presented complete resolution of symptoms in comparison to 28.5% of patients triggered by surgery. SIGNIFICANCE: Forced normalization is an entity whose pathophysiology remains uncertain. Antipsychotic drug use does not predict complete resolution of psychiatric symptoms in comparison with AED withdrawal. Although there is a positive response to treatment in patients with FN triggered by drugs, the prognosis is obscure in patients with surgery triggered FN.


Subject(s)
Epilepsy/drug therapy , Psychotic Disorders/etiology , Anticonvulsants/therapeutic use , Epilepsy/complications , Humans , Psychotic Disorders/physiopathology , Remission Induction
7.
Front Neurol ; 10: 601, 2019.
Article in English | MEDLINE | ID: mdl-31244761

ABSTRACT

Introduction: Deep brain stimulation is a safe and effective neurointerventional technique for the treatment of movement disorders. Electrical stimulation of subcortical structures may exert a control on seizure generators initiating epileptic activities. The aim of this review is to present the targets of the deep brain stimulation for the treatment of drug-resistant epilepsy. Methods: We performed a structured review of the literature from 1980 to 2018 using Medline and PubMed. Articles assessing the impact of deep brain stimulation on seizure frequency in patients with DRE were selected. Meta-analyses, randomized controlled trials, and observational studies were included. Results: To date, deep brain stimulation of various neural targets has been investigated in animal experiments and humans. This article presents the use of stimulation of the anterior and centromedian nucleus of the thalamus, hippocampus, basal ganglia, cerebellum and hypothalamus. Anterior thalamic stimulation has demonstrated efficacy and there is evidence to recommend it as the target of choice. Conclusion: Deep brain stimulation for seizures may be an option in patients with drug-resistant epilepsy. Anterior thalamic nucleus stimulation could be recommended over other targets.

8.
Epilepsy Behav Case Rep ; 11: 81-83, 2019.
Article in English | MEDLINE | ID: mdl-30788214

ABSTRACT

Forced normalization is the development of psychiatric symptoms in a patient experiencing remission of seizures. We present a case of Lennox Gastaut syndrome in which forced normalization developed after vagus nerve stimulation was stopped. The patient had drug resistant epilepsy and failed anti-seizure drugs, vagus nerve stimulation, and a partial callosotomy. The patient had multiple types of seizures including drop attacks, absences, and tonic-clonic seizures. He tried vagus nerve stimulation for two years without success. Forced normalization developed after the vagus nerve stimulator was turned off. This is the first case to our knowledge to describe forced normalization after turning off the vagus nerve stimulator.

9.
Can J Neurol Sci ; 45(6): 624-632, 2018 11.
Article in English | MEDLINE | ID: mdl-30430971

ABSTRACT

People with epilepsy (PWE) are less physically active compared with the general population. Explanations include prejudice, overprotection, unawareness, stigma, fear of seizure induction and lack of knowledge of health professionals. At present, there is no consensus on the role of exercise in epilepsy. This paper reviews the current evidence surrounding the risks and benefits associated with physical activity (PA) in this group of patients. In the last decade, several publications indicate significant benefits in physiological and psychological health parameters, including mood and cognition, physical conditioning, social interaction, quality of life, as well as potential prevention of seizure presentation. Moreover, experimental studies suggest that PA provides mechanisms of neuronal protection, related to biochemical and structural changes including release of ß-endorphins and steroids, which may exert an inhibitory effect on the occurrence of abnormal electrical activity. Epileptic discharges can decrease or disappear during exercise, which may translate into reduced seizure recurrence. In some patients, exercise may precipitate seizures. Available evidence suggests that PA should be encouraged in PWE in order to promote wellbeing and quality of life. There is a need for prospective randomized controlled studies that provide stronger clinical evidence before definitive recommendations can be made.


Subject(s)
Epilepsy/psychology , Exercise/psychology , Quality of Life/psychology , Sports , Consensus , Humans , Seizures/complications
10.
Epilepsy Behav ; 83: 151-161, 2018 06.
Article in English | MEDLINE | ID: mdl-29705626

ABSTRACT

Wilder Penfield pioneered the early practice of brain surgery. In binding together the disciplines of neurosurgery, neurology, neuropathology, psychology, and related basic sciences, Penfield transformed our understanding of the field of neuroscience. He brought to the operating room the meticulous techniques of Sherrington, combined with methods of stimulation described by Foerster, which he complemented with expert knowledge of the neurocytology of nervous tissue. While developing surgical treatments for epilepsy, Penfield began to map the brain. He established the "Montreal procedure" for the surgical treatment of epilepsy. His scientific contributions on neurostimulation were transformative in their time and continue to resonate today. This article reviews the life of Wilder Penfield and summarizes key scientific contributions. Specifically, we detail the Montreal procedure. We additionally present a painting by Canadian artist Iris Hauser, which purports to display the hidden treasures of the human mind.


Subject(s)
Brain Mapping/history , Deep Brain Stimulation/history , Neurology/history , Neurosurgical Procedures/history , Brain/surgery , Epilepsy/history , Epilepsy/surgery , Hemispherectomy/history , History, 19th Century , History, 20th Century , Humans , Quebec , Stereotaxic Techniques/history
11.
Seizure ; 56: 34-40, 2018 Mar.
Article in English | MEDLINE | ID: mdl-29428899

ABSTRACT

PURPOSE: Lacosamide, is one of the newer antiepileptic drug approved for focal drug-resistant epilepsy as an add-on treatment in patients older than 16 years. However, there is growing evidence of its use, safety and efficacy in children. We aim to evaluate efficacy and tolerability of lacosamide in focal and generalized drug-resistant epilepsy and refractory status epilepticus in the pediatric population. METHODS: We conducted a systematic review on MEDLINE, EMBASE, COCHRANE, Google Scholar and Scielo from January 2008 to January 2017. The primary outcome was the efficacy of lacosamide in children with drug-resistant epilepsy and refractory status epilepticus. Efficacy and adverse events attributed to lacosamide were extracted from each publication and systematically reported. We performed no meta-analyses due to limited available data. RESULTS: Of 175 abstracts identified by the search, 82 were reviewed as full-text. Twenty-six articles fulfilled eligibility criteria and described outcomes in 797 patients (57% male). The majority of studies were retrospective (69%) small series (84%). On average 51% of patients had 50% or greater seizure reduction. The mean seizure freedom rate was 24%. Adverse effects occurred in 18-59% of patients. The main events were dizziness, sedation, gastrointestinal upset, mood and behavioral changes. Half of the patients with Lennox Gastaut syndrome showed 50% or greater seizure reduction, 32% did not response to lacosamide and 17% suffered seizure aggravation. CONCLUSION: Current evidence shows lacosamide as a good option in pediatric patients with focal drug-resistant epilepsy and refractory status epilepticus as an add-on therapy given its efficacy on seizure control and safety profile. The use of lacosamide in Lennox-Gastaut syndrome shows conflicting data. Large randomized controlled studies in the pediatric population are necessary to substantiate these findings.


Subject(s)
Acetamides/therapeutic use , Anticonvulsants/therapeutic use , Drug Resistant Epilepsy/drug therapy , Status Epilepticus/drug therapy , Adolescent , Child , Humans , Lacosamide
12.
Epileptic Disord ; 19(2): 195-201, 2017 Jun 01.
Article in English | MEDLINE | ID: mdl-28625947

ABSTRACT

The pre-operative assessment and surgical management of patients with dual pathology is challenging. We describe a patient with drug-resistant focal epilepsy with hippocampal sclerosis and extensive periventricular nodular heterotopia in the same hemisphere. The semiology, scalp EEG, and imaging were divergent, but the presence of focal interictal and ictal epileptic discharges of the putative ictal onset zone resulted in successful localization of the epileptogenic zone. A less aggressive resection was performed based on intracranial EEG recording. The patient has been seizure-free for three years since resection. Electroclinical hypotheses and challenges in defining the epileptogenic network are discussed.


Subject(s)
Cerebral Ventricles/pathology , Drug Resistant Epilepsy , Epilepsies, Partial , Hippocampus/pathology , Nervous System Malformations/pathology , Adult , Drug Resistant Epilepsy/pathology , Drug Resistant Epilepsy/physiopathology , Drug Resistant Epilepsy/surgery , Epilepsies, Partial/pathology , Epilepsies, Partial/physiopathology , Epilepsies, Partial/surgery , Female , Humans , Sclerosis/pathology
13.
Seizure ; 49: 46-53, 2017 Jul.
Article in English | MEDLINE | ID: mdl-28242175

ABSTRACT

A single unprovoked seizure is a frequent phenomenon in the general population and the rate of seizure recurrence can vary widely. Individual risk prognostication is crucial in predicting patient outcomes and guiding treatment decisions. In this article, we review the most important risk factors associated with an increased likelihood of seizure recurrence after a single unprovoked seizure. In summary, the presence of focal seizure, nocturnal seizure, history of prior brain injury, family history of epilepsy, abnormal neurological exam, epileptiform discharges on electroencephalography and neuroimaging abnormalities, portend increased risk of seizure recurrence. Elucidation of these risk factors in patient assessment will augment clinical decision-making and may help determine the appropriateness of instituting anti-epilepsy treatment. We also discuss the Canadian model of single seizure clinics and the potential use to assess these patients.


Subject(s)
Epilepsy/epidemiology , Seizures/epidemiology , Anticonvulsants/therapeutic use , Electroencephalography , Epilepsy/drug therapy , Humans , Recurrence , Risk Factors , Seizures/drug therapy
14.
Epileptic Disord ; 18(2): 137-47, 2016 Jun 01.
Article in English | MEDLINE | ID: mdl-27100050

ABSTRACT

Temporal lobe epilepsy (TLE) is the most common type of drug-resistant epilepsy in adults and commonly requires surgical treatment. While an overwhelming preponderance of literature supports the notion that a large percentage of patients with TLE benefit from surgery, there is a paucity of outcome data on patients who demonstrate a sustained response to pharmacological treatment. In this study, we present an adult cohort of patients with TLE, with the purpose of identifying the proportion of patients with a mild course of the disease, as well as potential risk factors. A prospective cohort study of all patients with TLE assessed and followed by the Saskatchewan Epilepsy Program, from 1 March 2007 to Jan 29(th) 2014. Patients were dichotomized as having a mild (seizure freedom without surgical intervention) or severe (surgical intervention required and/or failure to achieve seizure remission) course. Descriptive statistics, odds ratios and confidence intervals were calculated to identify predictors of seizure freedom. The cohort consisted of 159 patients. Mean patient age at last follow-up visit was 46±14.4 (range: 19-88) years. Mean follow-up period was 43.4±22.6 (6 to 84) months. Forty-six patients (29%) demonstrated mild-course TLE while 113 (71%) had a severe course of TLE. Patients with a mild course of TLE were more likely to be older (p = 0.002), have late-onset epilepsy (p < 0.001) with shorter evolution (p < 0.001). A good response to the first antiepileptic drug (OR: 6.8; 95% CI: 2.5-19; p < 0.001) was associated with a mild course of TLE. Although a majority of patients with TLE eventually require surgery, operative treatment is not necessary for all patients. This study identifies prognostic factors that may help patients and clinicians characterize long-term outcome.


Subject(s)
Drug Resistant Epilepsy/diagnosis , Epilepsy, Temporal Lobe/diagnosis , Adult , Age Factors , Aged , Aged, 80 and over , Anticonvulsants/therapeutic use , Drug Resistant Epilepsy/diagnostic imaging , Drug Resistant Epilepsy/surgery , Epilepsy, Temporal Lobe/diagnostic imaging , Epilepsy, Temporal Lobe/surgery , Female , Humans , Magnetic Resonance Imaging , Male , Middle Aged , Prospective Studies , Retreatment , Severity of Illness Index , Treatment Outcome , Young Adult
15.
Epilepsy Behav ; 57(Pt A): 60-68, 2016 Apr.
Article in English | MEDLINE | ID: mdl-26921600

ABSTRACT

Epilepsy has afflicted humanity during most of the extent of documented history. The Aztecs believed that illnesses were punishments that were sent from a furious goddess. In particular, epilepsy was considered in Aztec culture as a "sacred disease", and convulsions were traditionally associated with a deified woman who had died at childbirth. As the goddess Shiva and Apasmâra in ancient India and Saint Valentine in Germany, Tlazolteotl was considered able to bring about and send away epilepsy. We performed a comprehensive review to identify Tlazolteotl depictions and its historical context related with epilepsy. Tlazolteotl is one of the most endearing and complex goddesses of the Mesoamericans. She was the deity of the black fertile and fecund earth that gains its energy from death and in turn feeds life. Associated with purification, expiation, and regeneration, she embodied fertility and turned all garbage, physical and metaphysical, into rich life. This article reviews the most relevant artistic works related with Tlazolteotl. We also present a modern depiction of the Aztec goddess of epilepsy from the Mexican artist Eduardo Urbano Merino, displaying the supernatural view of epilepsy in America.


Subject(s)
Epilepsy/history , Religion and Medicine , Seizures , Female , History, Ancient , History, Medieval , Humans , Pregnancy
16.
Can J Neurol Sci ; 43(2): 254-60, 2016 Mar.
Article in English | MEDLINE | ID: mdl-26864547

ABSTRACT

BACKGROUND: The StatNet electrode set is a system that can be applied by a non-electroencephalogram (EEG) technologist after minimal training. The primary objectives of this study are to assess the quality and reliability of the StatNet recordings in comparison to the conventional EEG. METHODS: Over 10 months, 19 patients with suspected nonconvulsive status epilepticus were included from university hospital emergency settings. Each patient received a StatNet EEG by a trained epilepsy fellow and a conventional EEG by registered technologists. We compared the studies in a blinded fashion, for the timeframe from EEG order to the setup time, start of acquisition, amount of artifact, and detection of abnormalities. The nonparametric Mann-Whitney two-sample t test was used for comparisons. The kappa score was used to assess reliability. RESULTS: Mean age of patients was 61±16.3 (25-93) years. The inter-observer agreement for detection of abnormal findings was 0.83 for StatNet and 0.75 for conventional EEG. Nonconvulsive status epilepticus was detected in 10% (2/19) in both studies. The delay from the time of EEG requisition to acquisition was shorter in the StatNet (22.4±2.5 minutes) than the conventional EEG (217.7±44.6 minutes; p<0.0001). The setup time was also shorter in the StatNet (9.9±0.8 minutes) compared with the conventional EEG (17.8±0.8 minutes; p<0.0001). There was no difference in the percentage of artifact duration between the two studies (p=0.89). CONCLUSION: This study demonstrates that StatNet EEG is a practical and reliable tool in the emergency setting, which reduces the delay of testing compared with conventional EEG, without significant compromise of study quality.


Subject(s)
Electroencephalography/methods , Status Epilepticus/diagnosis , Adult , Aged , Aged, 80 and over , Emergency Service, Hospital , Female , Humans , Male , Middle Aged , Reproducibility of Results , Signal Processing, Computer-Assisted
17.
Epilepsy Behav ; 57(Pt B): 255-64, 2016 Apr.
Article in English | MEDLINE | ID: mdl-26874992

ABSTRACT

The historical allure of epilepsy transcends academic circles and serves as fascinating critique of the state of the times-its values, judgments, mythos, and people. Immortalized and laid bare in artistic renderings of epilepsy are societal truths, at times both disparately grandiose and grotesque. During the middle ages and Renaissance, the European discourse on epilepsy assumed religious fervor. Epilepsy was considered a demonic machination and its cure an act of divine intercession. A similar theme is found in the artistic depiction of epilepsy from the Inca and Aztec civilizations of that time. After the 19th century drew to a close, the ascendency of empiricism coincided with waning creative interest in epilepsy, with few paintings or pieces to capture insightful perspectives on the illness. In this paper, we review the relationship between art and epilepsy and present two contemporary paintings that convey current western perceptions. This article is part of a Special Issue entitled "Epilepsy, Art, and Creativity".


Subject(s)
Epilepsy/history , Famous Persons , Medicine in the Arts , Paintings/history , Creativity , History, 15th Century , History, 16th Century , History, 17th Century , History, 18th Century , History, 19th Century , History, 20th Century , Humans , Judgment
18.
Clin EEG Neurosci ; 46(2): 136-41, 2015 Apr.
Article in English | MEDLINE | ID: mdl-24615929

ABSTRACT

The coexistence of focal and generalized epilepsy is rare. We report on a 17-year-old male with drug-resistant focal epilepsy and idiopathic generalized epilepsy (IGE). He began to experience generalized tonic-clonic seizures (GTCS) at the age of 3 years, with a good response to phenobarbital. At the age of 14 years, he began to experience complex partial seizures (CPS). Video-electroencephalography (video-EEG) telemetry showed the coexistence of right temporal spikes and bursts of generalized spike-wave (GSW). The ictal EEG showed a unique EEG pattern characterized by a 4- to 5-second burst of GSW followed by rhythmic delta activity over the right temporal region. A magnetic resonance image (MRI) showed right hippocampal sclerosis. The patient underwent a right temporal lobectomy that significantly improved his seizure control. He was rendered seizure free of the complex partial seizures and improvement of the GTCS. This case illustrates a very uncommon ictal EEG pattern, and shows that the decision for surgery in patients with focal drug-resistant epilepsy should not be affected by coexistent generalized epilepsy.


Subject(s)
Electroencephalography/methods , Epilepsies, Partial/diagnosis , Epilepsies, Partial/physiopathology , Epilepsy, Generalized/diagnosis , Epilepsy, Generalized/physiopathology , Temporal Lobe/physiopathology , Adolescent , Diagnosis , Diagnosis, Differential , Epilepsies, Partial/surgery , Epilepsy, Generalized/surgery , Humans , Male , Temporal Lobe/surgery , Treatment Outcome
19.
Can J Neurol Sci ; 41(6): 753-8, 2014 Nov.
Article in English | MEDLINE | ID: mdl-25377755

ABSTRACT

OBJECTIVE: To describe the social, clinical and use-patterns characteristics of medicinal marijuana use among patients with epilepsy (PWEs). METHODS: Eighteen PWEs with prescriptions for medicinal marijuana from a Canadian adult-epilepsy clinic were included in this study. RESULTS: Eighteen patients had a prescription of medicinal marijuana from a total population of 800 PWEs in our center (2.2%). Mean age of patients was 30±7.4 (19-50) years. Twelve (67%) patients were males. Eleven (61%) patients had drug-resistant epilepsy. Eleven (61%) patients suffered a psychiatric comorbidity and reported the use of illicit substances or heavy alcohol or tobacco consumption. Only two (11%) patients were married; the rest of patients (89%) were single or divorced. The drug use pattern was similar among patients. All patients asked for marijuana permission in the epilepsy clinic. Most (83%) had a previous history of marijuana smoking, with a mean of 6.6±3 (1-15) years. The mean consumption dose was 2.05±1.8 (0.5-8) grams per day. Ten (56%) patients reported withdrawal seizure exacerbation when they stopped the marijuana. Only two patients (11%) reported side effects, and all patients found medicinal marijuana very helpful for seizure control and improvement of mood disorder. CONCLUSIONS: PWEs using medicinal marijuana have a common profile. They are usually young single men with drug-resistant epilepsy and psychiatric comorbidity. Most used marijuana before formal prescription and all believe the drug was effective on their seizure control. Because of the concurrent use of other antiseizure medications, it is complex to estimate the actual effect of marijuana.


Subject(s)
Drug Resistant Epilepsy/drug therapy , Drug Resistant Epilepsy/epidemiology , Marijuana Smoking/epidemiology , Medical Marijuana/therapeutic use , Adult , Drug Resistant Epilepsy/diagnosis , Female , Follow-Up Studies , Humans , Male , Middle Aged , Retrospective Studies , Young Adult
20.
Epilepsy Behav ; 29(1): 82-9, 2013 Oct.
Article in English | MEDLINE | ID: mdl-23933914

ABSTRACT

The impact of health and disease has led many artists to depict these themes for thousands of years. Specifically, epilepsy has been the subject of many famous works, likely because of the dramatic and misunderstood nature of the clinical presentation. It often evokes religious and even mythical processes. Epilepsy surgical treatment has revolutionized the care of selected patients and is a relatively recent advance. Epilepsy surgery has been depicted in very few artistic works. The first portrait showing a potential surgical treatment for patients with epilepsy was painted in the 12th century. During the Renaissance, Bosch famously provided artistic commentary on traditional beliefs in "The stone of madness". Several of these works demonstrate a surgeon extracting a stone from a patient's head, at one time believed to be the source of all "folly", including epileptic seizures, psychosis, intellectual disability, depression, and a variety of other illnesses. There are some contemporary art pieces including themes around epilepsy surgery, all of them depicting ancient Inca Empire procedures such as trepanning. This article reviews the most relevant artistic works related with epilepsy surgery and also its historical context at the time the work was produced. We also present a painting from the Mexican artist Eduardo Urbano Merino that represents the patient's journey through refractory epilepsy, investigations, and ultimately recovery. Through this work, the artist intends to communicate hope and reassurance to patients going through this difficult process.


Subject(s)
Art , Epilepsy/surgery , Neurosurgery/history , Art/history , Epilepsy/history , History, 15th Century , History, 16th Century , History, 17th Century , History, 18th Century , History, 19th Century , History, 20th Century , History, 21st Century , History, Medieval , Humans , Neurosurgery/methods
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