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Journal articles on the topic 'EEGs (electroencephalograph)'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Amiraslany, A., A. Khan, F. Moien-Afshari, PK Wong, and S. Almubarak. "P.075 The trend of electroencephalograph findings after starting anti-epileptic drugs during seizure assessment in children." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 44, S2 (2017): S32. http://dx.doi.org/10.1017/cjn.2017.159.

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Background: Few studies have explored the effects of anti-epileptic drugs (AEDs) on electroencephalograph (EEG) findings during the assessment of seizure management. Although a patient may reach seizure freedom, EEG results may continue to be abnormal. Further information is required to understand the trend of EEG findings during seizure treatment. Methods: This is a retrospective study based on chart reviews. Patients who had epilepsy evaluations at the Royal University Hospital in Saskatoon between January 2012 and December 2015, were selected. The relationships among time of initiating AEDs

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M., Salah Elmagzoub, F. Abdalla Sami, and A. Babikir Hiba. "EEG Characterizations and Clinical Features in Sudanese Patients with Panayiotopoulos Syndrome." International Neuropsychiatric Disease Journal 9, no. 2 (2017): 1–6. https://doi.org/10.9734/INDJ/2017/32646.

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<strong>Introduction:</strong> Panayiotopoulos syndrome (PS) is an age-related, and a relatively frequent benign epileptic syndrome, characterised by predominantly autonomic symptoms and/or simple motor focal seizures followed, or not, by impairment of consciousness. Interictal electroencephalograph (EEG) shows occipital spikes, although multifocal spikes with high amplitude sharp-slow wave complexes at various locations can be present.PS mimics gastroenteritis, encephalitis, syncope, migraine, sleep disorders or metabolic diseases. <strong>Aim:</strong> The aim was to characterise the EEG wav

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Dede, Hava Ozlem, Nerses Bebek, Ozlem Gelisin, et al. "Lateralized periodic discharges associated with status epilepticus in the first year after stroke." Journal of Epileptology 24, no. 1 (2016): 15–23. http://dx.doi.org/10.1515/joepi-2016-0002.

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Summary Backgrand. Lateralized periodic discharges (LPDs) are infrequent electroencephalograph (EEG) findings, and may present in ictal or interictal form. They are regarded as potential electrophysiologic signs of convulsive or nonconvulsive status epilepticus (NCSE). We report four patients who presented with NCSE and one who presented with convulsive status epilepticus in the postictal period, characterized by LPDs in EEG recordings in the first year after stroke. Material and methods. We prospectively evaluated patients who clinically presented with status epilepticus associated LPDs betwe

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Camfield, Peter, Kevin Gordon, Carol Camfield, John Tibbies, Joseph Dooley, and Bruce Smith. "EEG Results are Rarely the Same if Repeated within Six Months in Childhood Epilepsy." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 22, no. 4 (1995): 297–300. http://dx.doi.org/10.1017/s0317167100039512.

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AbstractObjectiveTo assess the reliability of interictal spike discharge in routine electroencephalography (EEG) testing in children.MethodEEG results of all children diagnosed in Nova Scotia with epilepsy onset between 1977–85 (excluding myoclonic, akinetic-atonic and absence) were reviewed. The results of the EEG at time of diagnosis (EEG1) were compared with those of a second EEG (EEG2) within 6 months.ResultsOf 504 children with epilepsy, 159 had both EEG1 and EEG2. EEG2 was more likely ordered if EEG1 was normal or showed focal slowing but less likely if EEG1 contained sleep (p < 0.05)

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Bruhn, Jörgen, Thomas W. Bouillon, Andreas Hoeft, and Steven L. Shafer. "Artifact Robustness, Inter- and Intraindividual Baseline Stability, and Rational EEG Parameter Selection." Anesthesiology 96, no. 1 (2002): 54–59. http://dx.doi.org/10.1097/00000542-200201000-00015.

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Background Artifact robustness (i.e., size of deviation of an electroencephalographic parameter value from baseline caused by artifacts) and baseline stability (i.e., consistency of median baseline values) of electroencephalographic parameters profoundly influence electroencephalography-based pharmacodynamic parameter estimation and the usefulness of the processed electroencephalogram as measure of the arousal state of the central nervous system (depth of anesthesia). In this study, the authors compared the artifact robustness and the interindividual and intraindividual baseline stability of s

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Naseri, Motahareh, Sahar Sadeghi, Milad Malekipirbazari, et al. "Interaction of Cooking-Generated Aerosols on the Human Nervous System and the Impact of Caloric Restriction Post-Exposure." Nutrients 16, no. 20 (2024): 3525. http://dx.doi.org/10.3390/nu16203525.

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Background: The inhalation of cooking-generated aerosols could lead to translocation to the brain and impact its function; therefore, the effects of cooking-generated aerosols on healthy adults were investigated using an electroencephalograph (EEG) during the 2 h period post-exposure. Methods: To explore any changes from the impact of exposure to cooking-generated aerosols on the human brain due to the absence of food intake during exposure, we divided the study participants into three groups: (A) no food intake for 2 h (2 h-zero calorie intake), (B) non-zero calorie intake, and (C) control gr

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Raghu, S., N. Sriraam, and G. Pradeep Kumar. "Effect of Wavelet Packet Log Energy Entropy on Electroencephalogram (EEG) Signals." International Journal of Biomedical and Clinical Engineering 4, no. 1 (2015): 32–43. http://dx.doi.org/10.4018/ijbce.2015010103.

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The scaling behavior of human electroencephalogram (EEG) signals is well exploited by appropriate extraction of time – frequency domain and entropy based features. Such measurable inherently helps understanding the neurophysiological phenomenon of brain as well as its associated cortical activities. Being a non-linear time series, EEG's are assumed to be fragment of fluctuations. Several attempts have been made to study the EEG signals for clinical applications such as epileptic seizure detection, evoked response potential recognition, tumor detection, identification of alcoholics and so on. I

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Gu, Feng, Anmin Gong, Yi Qu, et al. "Research on Top Archer’s EEG Microstates and Source Analysis in Different States." Brain Sciences 12, no. 8 (2022): 1017. http://dx.doi.org/10.3390/brainsci12081017.

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The electroencephalograph (EEG) microstate is a method used to describe the characteristics of the EEG signal through the brain scalp electrode potential’s spatial distribution; as such, it reflects the changes in the brain’s functional state. The EEGs of 13 elite archers from China’s national archery team and 13 expert archers from China’s provincial archery team were recorded under the alpha rhythm during the resting state (with closed eyes) and during archery aiming. By analyzing the differences between the EEG microstate parameters and the correlation between these parameters with archery

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Zhang, Yanli, Tao Yu, Jianing Cui, Qiuyu Fu, Gang Ning, and Rong Luo. "An 8-Year 5-Month-Old Boy with a Basal Ganglia Lesion with Triphasic Waves on Electroencephalogram." Actas Españolas de Psiquiatría 52, no. 5 (2024): 741–47. http://dx.doi.org/10.62641/aep.v52i5.1741.

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Background: Triphasic waves (TWs) on electroencephalograms (EEGs) have predominantly been observed in adults, often associated with Creutzfeldt‒Jakob disease and metabolic encephalopathy. However, TWs have also been linked to various nonmetabolic and structural abnormalities. Additionally, reports of TWs in children are rare. Case Presentation: We present the case of an 8-year and 5-month-old boy with basal ganglia lesion who exhibited TWs in the local C3 lead on electroencephalography. Subsequent EEGs revealed no additional abnormalities. During the follow-up at 1 year and 8 months, there was

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Del Brutto, Oscar. "Electroencefalografía en Tiempos de COVID-19." Revista Ecuatoriana de Neurologia 29, no. 2 (2020): 14–15. http://dx.doi.org/10.46997/revecuatneurol29200014.

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El electroencefalograma (EEG) es de gran utilidad diagnóstica en la evaluación de pacientes neurológicos, no solamente en personas con epilepsia, sino también en aquellos con encefalopatías focales o difusas de origen estructural, tóxico, metabólico o infeccioso. Por tratarse, en la mayoría de los casos, de un procedimiento que puede ser programado sin mayor urgencia, la pandemia de SARS-CoV-2 ha condicionado una reducción considerable en el número de EEGs realizados. De hecho, una encuesta realizada en 206 centros neurofisiológicos en Italia, demostró una reducción en las tres cuartas partes

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Sachdev, Perminder, Henry Brodaty, Sophia Roubina, and Roderick A. Mackenzie. "An Electroencephalographic Investigation of Late-Onset Schizophrenia." International Psychogeriatrics 11, no. 4 (1999): 421–29. http://dx.doi.org/10.1017/s1041610299006031.

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We performed awake and resting electroencephalograms (EEGs) on 22 subjects with DSM-III-R schizophrenic disorder of late onset (at or after age 50 years), and compared them with the EEGs of 33 healthy community controls matched for age and gender. The EEGs were rated qualitatively and a 2-minute, artifact-free tracing from each subject was quantified manually by an experienced neurophysiologist unaware of the identity of the subject group. The only significant difference was the presence of more generalized slowing in the EEGs of schizophrenia patients, which was at least partially accounted f

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Boulanger, Jean-Martin, Charles Deacon, Diane Lécuyer, Sylvie Gosselin, and Jean Reiher. "Triphasic Waves Versus Nonconvulsive Status Epilepticus: EEG Distinction." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 33, no. 2 (2006): 175–80. http://dx.doi.org/10.1017/s0317167100004935.

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ABSTRACT:Background:Triphasic waves (TWs) and generalized nonconvulsive status epilepticus (GNCSE) share morphological features that may create diagnostic ambiguity.Objective::To describe electroencephalographic differences between TWs and GNCSE.Methods:We retrospectively compared the electroencephalograms (EEGs) of two groups of patients presenting with decreased level of consciousness; those with TWs associated with metabolic encephalopathy and those with GNCSE. We studied the following: demographics, etiology and EEG morphological features. All EEGs were classified blindly (TWs or GNCSE) by

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Pérez, Nuria Valverde. "Meanings of Waves: Electroencephalography and Society in Mexico City, 1940–1950." Science in Context 29, no. 4 (2016): 451–72. http://dx.doi.org/10.1017/s0269889716000223.

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ArgumentThis paper focuses on the uses of electroencephalograms (EEGs) in Mexico during their introductory decade from 1940 to 1950. Following Borck (2006), I argue that EEGs adapted to fit local circumstances and that this adjustment led to the consolidation of different ways of making science and the emergence of new objects of study and social types. I also maintain that the way EEGs were introduced into the institutional networks of Mexico entangled them in discussions about the objective and juridical definitions of social groups, thereby preempting concerns about their technical and epis

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Lin, Lung-Chang, Chen-Sen Ouyang, Rong-Ching Wu, Rei-Cheng Yang, and Ching-Tai Chiang. "Alternative Diagnosis of Epilepsy in Children Without Epileptiform Discharges Using Deep Convolutional Neural Networks." International Journal of Neural Systems 30, no. 05 (2019): 1850060. http://dx.doi.org/10.1142/s0129065718500600.

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Numerous nonepileptic paroxysmal events, such as syncope and psychogenic nonepileptic seizures, may imitate seizures and impede diagnosis. Misdiagnosis can lead to mistreatment, affecting patients’ lives considerably. Electroencephalography is commonly used for diagnosing epilepsy. Although on electroencephalograms (EEGs), epileptiform discharges (ED) specifically indicate epilepsy, only approximately 50% of patients with epilepsy have ED in their first EEG. In this study, we developed a deep convolutional neural network (ConvNet)-based classifier to distinguish EEG between patients with epile

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Aleksandrov, M. V., and A. M. Aleksandrov. "Electroencephalography: The Beginning. On the centenary of Hans Berger’s first recording of an electroencephalogram." Medical alphabet, no. 22 (December 4, 2024): 48–53. https://doi.org/10.33667/2078-5631-2024-22-48-53.

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The German psychiatrist and psychophysiologist, Hans Berger (1873–1941), rightfully holds the title of «father of electroencephalography.» He was the first to record an electroencephalogram in July 1924. From 1929 to 1940, Berger published the results of his long-term research on the recording of the overall bioelectric activity of the human brain from the scalp surface. He proposed the term «electroencephalography» and the abbreviation «EEG», characterized the major types of activity, described the phenomena of synchronization and desynchronization. In his research, Berger focused on the EEG’

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Dash, Dianne, Chelsea Dash, Sara Primrose, et al. "Update on Minimal Standards for Electroencephalography in Canada: A Review by the Canadian Society of Clinical Neurophysiologists." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 44, no. 6 (2017): 631–42. http://dx.doi.org/10.1017/cjn.2017.217.

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AbstractSurface electroencephalogram (EEG) recording remains the gold standard for noninvasive assessment of electrical brain activity. It is the most efficient way to diagnose and classify epilepsy syndromes as well as define the localization of the epileptogenic zone. The EEG is useful for management decisions and for establishing prognosis in some types of epilepsy. Electroencephalography is an evolving field in which new methods are being introduced. The Canadian Society of Clinical Neurophysiologists convened an expert panel to develop new national minimal guidelines. A comprehensive evid

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Stone, Jon, and Gregory Moran. "The utility of EEG in psychiatry and aggression." Psychiatric Bulletin 27, no. 5 (2003): 171–72. http://dx.doi.org/10.1192/s0955603600002051.

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Aims and MethodTo describe the outcomes of electroencephalography requested by general adult psychiatry over a 12-month period.Results187 electroencephalograms (EEGs) were performed. In 71%, the request was to look for evidence of epilepsy. In 22%, it was to determine whether there was organic brain dysfunction. In only one patient was unequivocal evidence of an epileptic focus found. A further 11 patients demonstrated a liability to epilepsy. In none of the 33 patients where aggression was mentioned on the request form were any diagnostic features found.Clinical ImplicationsThe yield of EEG i

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Stone, Jon, and Gregory Moran. "The utility of EEG in psychiatry and aggression." Psychiatric Bulletin 27, no. 05 (2003): 171–72. http://dx.doi.org/10.1192/pb.27.5.171.

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Aims and Method To describe the outcomes of electroencephalography requested by general adult psychiatry over a 12-month period. Results 187 electroencephalograms (EEGs) were performed. In 71%, the request was to look for evidence of epilepsy. In 22%, it was to determine whether there was organic brain dysfunction. In only one patient was unequivocal evidence of an epileptic focus found. A further 11 patients demonstrated a liability to epilepsy. In none of the 33 patients where aggression was mentioned on the request form were any diagnostic features found. Clinical Implications The yield of

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Appendino, Juan Pablo, Patrick J. McNamara, Matthew Keyzers, Derek Stephens, and Cecil D. Hahn. "The Impact of Amplitude-Integrated Electroencephalography on NICU Practice." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 39, no. 3 (2012): 355–60. http://dx.doi.org/10.1017/s0317167100013512.

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Objective:To examine how the introduction of amplitude-integrated electroencephalography (aEEG) to our neonatal intensive care unit (NICU) influenced clinical practice.Methods:This was a retrospective study examining clinical practice three years before and three years after the introduction of aEEG monitors to our NICU. A time series analysis was performed to explore whether aEEG introduction was associated with changes in the rates of conventional EEGs performed, neurology consultations and neonates diagnosed with seizures.Results:Following aEEG introduction, the total number of conventional

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Syamsundararao, Thalakola, A. Selvarani, R. Rathi, et al. "An Efficient Signal Processing Algorithm for Detecting Abnormalities in EEG Signal Using CNN." Contrast Media & Molecular Imaging 2022 (September 21, 2022): 1–13. http://dx.doi.org/10.1155/2022/1502934.

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Electroencephalography (EEG) is crucial for epilepsy detection; however, detecting abnormalities takes experience and knowledge. The electroencephalogram (EEG) is a technology that measures brain motion and represents the brain’s function. EEG is an effective instrument for deciphering the brain’s complicated activity. The information contained in the EEG signal pertains to the electric functioning of the brain. Neurologists have typically used direct visual inspection to detect epileptogenic abnormalities. This method is time-consuming, restricted by technical artifacts, produces varying find

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Koshchavtsev, A. G., and S. V. Grechanyi. "Interpretation of electroencephalography in infants." Epilepsy and paroxysmal conditions 12, no. 1 (2020): 9–25. http://dx.doi.org/10.17749/2077-8333.2020.12.1.9-25.

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Aim: Based on published reports and our own observations, we aimed to assign the graphical elements of EEG into normal and abnormal groups and then identify up to five main graphic elements in each group to facilitate visual analysis and interpretation of EEG in young children.Materials and methods. We searched for the relevant sources in the Medline and Medscape databases using the following keywords: «neonatal EEG», «neonatal seizures», «theta burst», «delta brushes», «trace discontinue», «burst-suppression», hypsarrhythmia», etc. Our own research was conducted using an Encephalan-EEGR-19/26

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Dash, C., BJ Mischuk, S. Almubarak, and F. Moien-Afshari. "P.069 The predictive factors of electroencephalograms with epileptiform activity in psychiatric patients." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 43, S2 (2016): S37. http://dx.doi.org/10.1017/cjn.2016.173.

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Background: Psychiatrists commonly use electroencephalogram (EEG) to rule out epilepsy as a cause of psychiatric symptoms. A large number of these studies are normal. Our study aims to identify the predictive factors of an EEG with epileptiform activity in these patients. Methods: We performed a retrospective study of the EEG results and chart reviews of the 208 psychiatric patients at Royal University Hospital in Saskatoon, Saskatchewan from 2013-2015. The EEG results were correlated with several factors known to increase the probability of an abnormal recording including history of seizures,

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Young, G. B., R. S. McLachlan, J. H. Kreeft, and J. D. Demelo. "An Electroencephalographic Classification for Coma." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 24, no. 04 (1997): 320–25. http://dx.doi.org/10.1017/s0317167100032996.

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ABSTRACT:Background:The assessment of thalamocortical function in comatose patients in the intensive care unit (ICU) can be difficult to determine. Since the electroencephalogram (EEG) affords such assessment, we have developed an EEG classification for comatose patients in our general ICU.Methods:One hundred EEGs were classified in a blinded fashion by two EEGers, using our method and that of Synek. Interobserver agreement was assessed using kappa score determination.Results:Kappa scores were 0.90 for our system and 0.75 for the Synek system. (The Kappa score represents the inter-rater agreem

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Freund, Brin, John C. Probasco, Mackenzie C. Cervenka, Raoul Sutter, and Peter W. Kaplan. "EEG Differences in Two Clinically Similar Rapid Dementias: Voltage-Gated Potassium Channel Complex–Associated Autoimmune Encephalitis and Creutzfeldt-Jakob Disease." Clinical EEG and Neuroscience 50, no. 2 (2018): 121–28. http://dx.doi.org/10.1177/1550059418774686.

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Distinguishing treatable causes for rapidly progressive dementia from those that are incurable is vital. Creutzfeldt-Jakob disease (CJD) and voltage-gated potassium channel complex–associated autoimmune encephalitis (VGKC AE) are 2 such conditions with disparate outcomes and response to treatment. To determine the differences in electroencephalography between CJD and VGKC AE, we performed a retrospective review of medical records and examined clinical data, neuroimaging, and electroencephalographs performed in patients admitted for evaluation for rapidly progressive dementia diagnosed with CJD

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Hu, Senqi. "Effects of Dimenhydrinate on Electroencephalographic Activity." Perceptual and Motor Skills 84, no. 3 (1997): 1105–6. http://dx.doi.org/10.2466/pms.1997.84.3.1105.

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Spontaneous EEGs of 10 undergraduates showed no changes within 90 min. for peak frequency (Hz) of alpha band or for percentage distribution of alpha band between dimenhydrinate and placebo conditions.

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Nightingale, Sam, Salvatore Ssemmanda, Lawrence M. Tucker, Roland W. Eastman, and Eddy B. Lee Pan. "Electroencephalography as a diagnostic tool for late-onset efavirenz neurotoxicity syndrome." PLOS ONE 18, no. 11 (2023): e0288055. http://dx.doi.org/10.1371/journal.pone.0288055.

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Introduction To examine electroencephalogram (EEG) as a diagnostic tool for late-onset efavirenz (EFV) neurotoxicity syndrome (LENS), an uncommon but severe and potentially fatal complication of EFV therapy. Methods We conducted a Retrospective case-control study. EEGs from confirmed cases of LENS (clinical syndrome and plasma EFV >4ug/mL) recorded from June 2016 to May 2021 were compared with control EEGs from the same time-period. Controls were adults (18–70 years) with a similar indication for EEG (eg. encephalopathy or confusion), dysrhythmia generalised grade II, and LENS excluded. EEG

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Fenton, George W., and Kevin Standage. "Clinical Electroencephalography in a Psychiatric Service." Canadian Journal of Psychiatry 38, no. 5 (1993): 333–38. http://dx.doi.org/10.1177/070674379303800509.

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An audit of the use of clinical electroencephalography in a psychiatric service was carried out by examining the referrals for an EEG from the service over one year (11% of all referrals), comparing them with matched patient controls, rating the EEGs blindly and estimating the clinical value of the investigation for each patient; 37% were abnormal, 19% anomalous and 44% normal. The following two clusters of symptoms and signs were associated with EEG referral — the patients with “organic” mental state phenomena and/or CNS signs; EEG usually abnormal and the patients with behavioural changes th

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Westover, M. Brandon, Kapil Gururangan, Matthew S. Markert, et al. "Diagnostic Value of Electroencephalography with Ten Electrodes in Critically Ill Patients." Neurocritical Care 33, no. 2 (2020): 479–90. http://dx.doi.org/10.1007/s12028-019-00911-4.

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Abstract Background In critical care settings, electroencephalography (EEG) with reduced number of electrodes (reduced montage EEG, rm-EEG) might be a timely alternative to the conventional full montage EEG (fm-EEG). However, past studies have reported variable accuracies for detecting seizures using rm-EEG. We hypothesized that the past studies did not distinguish between differences in sensitivity from differences in classification of EEG patterns by different readers. The goal of the present study was to revisit the diagnostic value of rm-EEG when confounding issues are accounted for. Metho

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Anghinah, Renato, Paulo Afonso Medeiros Kanda, Helder Frederico Lopes, et al. "Alzheimer's disease qEEG: spectral analysis versus coherence. which is the best measurement?" Arquivos de Neuro-Psiquiatria 69, no. 6 (2011): 871–74. http://dx.doi.org/10.1590/s0004-282x2011000700004.

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There is evidence in electroencephalography that alpha, theta and delta band oscillations reflect cognitive and memory performances and that quantitative techniques can improve the electroencephalogram (EEG) sensitivity. This paper presents the results of comparative analysis of qEEG variables as reliable markers for Alzheimer's disease (AD). We compared the sensitivity and specificity between spectral analysis (spectA) and coherence (Coh) within the same group of AD patients. SpectA and Coh were calculated from EEGs of 40 patients with mild to moderate AD and 40 healthy elderly controls. The

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Alvarez, Vincent, Malin Maeder-Ingvar, and Andrea O. Rossetti. "Watching television: a previously unrecognized powerful trigger of λ waves." Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society 28, no. 4 (2011): 400–403. https://doi.org/10.1097/WNP.0b013e3182273250.

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OBJECTIVE: To assess whether lambda waves are elicited by watching television (TV) and their association with demographical and EEG features. METHODS: We retrospectively compared lambda wave occurrence in prolonged EEG monitorings of outpatients who were allowed to watch TV and in standard EEGs recorded in TV-free rooms. All EEGs were interpreted by the same two electroencephalographers. RESULTS: Of 2,072 standard EEG reports, 36 (1.7 %) mentioned lambda waves versus 46 (32.2%) of 143 prolonged EEG monitoring reports (P < 0.001). Multivariable comparison of prolonged EEG monitorings and sta

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Domizio, Sergio, Emanuela Conte, Cristina Puglielli, et al. "Epileptic EEG discharges and short non-convulsive crisis: Influence on cognitive and psychobehavioural functions in youths." Clinical & Investigative Medicine 31, no. 1 (2008): 20. http://dx.doi.org/10.25011/cim.v31i1.3139.

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Purpose: Learning and behavioural difficulties often occur in benign childhood epilepsy. In recent years, several electroencephalogram (EEG) characteristics have been related to the occurrence of learning and behavioral problems. We determined if the cognitive characteristics of epileptic children depend exclusively on illness factors, or if epileptic electroencephalogram discharges during the crisis contribute to these changes.  Methods: We studied a randomly selected group of 150 youths with short non-convulsive crises, who completed cognitive testing and electroencephalographic

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Kavčič, Alja, and Zvonka Rener-Primec. "Predictive Value of Epileptiform Discharges for Subsequent Epilepsy After Febrile Seizures." Journal of Child Neurology 33, no. 12 (2018): 772–75. http://dx.doi.org/10.1177/0883073818787064.

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The predictive value of epileptiform discharges for subsequent epilepsy after febrile seizures was studied in 140 children: 72 children (51%) had simple febrile seizures and 68 children (49%) had complex febrile seizures. Electroencephalography (EEG) was performed in 103 children (74%), it was normal in 66 (47%) and with epileptiform patterns in 37 patients (26%). At follow-up in 2017, 10 children developed epilepsy, 1 had a single epileptic seizure, 9 of them had epileptiform EEGs. Of the patients with normal EEGs after complex febrile seizures, none developed epilepsy, and 92% of patients wi

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Yuen, C., W. Cherk, T. Fung, C. Ho, K. Chan, and Y. Yu. "Melatonin versus chloral hydrate as the sedating agent in performing electroencephalogram in paediatric patients." International Journal of Epilepsy 04, no. 01 (2017): 051–54. http://dx.doi.org/10.1016/j.ijep.2016.11.004.

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AbstractElectroencephalography (EEG) is a valuable tool in the diagnosis of epilepsy. The attainment of a high quality EEG requires patient's co-operation which is particularly difficult in children. Chloral hydrate has been used as a sedating agent in EEGs but it has potential serious adverse effects and anti-epileptic activity. Melatonin is used increasingly in different investigations as a safe alternative. Our study is to compare their effectiveness as sedating agents in performing EEGs and the detection rate of abnormal EEGs. This is a retrospective study performed in a regional hospital

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Alves-Leon, Soniza Vieira, Renata Gomes Nunes, Maria Emilia Cosenza Andraus, José Carlos Biagini Junior, Marta Hemb, and Maria Alice Genofre. "Clinical and electroencephalographic characteristics of benign occipital epilepsy of childhood in two tertiary Brazilian hospitals." Arquivos de Neuro-Psiquiatria 69, no. 4 (2011): 648–53. http://dx.doi.org/10.1590/s0004-282x2011000500014.

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This study intended to investigate the clinical and electroencephalographic benign occipital epilepsy of childhood (BOEC) characteristics in a population sample of patients from two tertiary Brazilian hospitals. We analyzed retrospectively 4912 electroencephalograms (EEGs) records, and the included patients were submitted to a new clinical and EEG evaluation. Were included 12 (0.92%) patients; 4 (33.3%) with criteria for early BOEC; 6 (50%) for late form and 2 (16.7%) with superimposed early and late onset forms. After new investigation, 2 (16.7%) had normal EEG; 4 (33.3%) had paroxysms over t

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Osaka,, Kyoko, Tetsuya Tanioka,, Shu-ichi Ueno,, et al. "Empathetic Understanding as Caring in Nursing Using Electroencephalographic Data as Evidence." International Journal of Human Caring 12, no. 1 (2008): 7–16. http://dx.doi.org/10.20467/1091-5710.12.1.7.

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Technological competency is an expression of caring in nursing. Nurses need to understand patients’ emotions and understand patients’ worlds as if these were their own. This is “empathic understanding.” Electroencephalograms (EEGs) were performed on five healthy participants while viewing an emotionally charged “sentimental” movie. EEG changes were collected and compared with data during a less emotionally charged situation. Apower map and spectrogram analyses of EEGs showed that alpha bands at the occipital region were specifically pronounced during the emotionally charged state. This study s

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Politi, Keren, Sara Kivity, Hadassa Goldberg-Stern, Ayelet Halevi, and Avinoam Shuper. "Selective Mutism and Abnormal Electroencephalography (EEG) Tracings." Journal of Child Neurology 26, no. 11 (2011): 1377–82. http://dx.doi.org/10.1177/0883073811406731.

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Epileptic discharges are not considered a part of the clinical picture of selective mutism, and electroencephalography is generally not recommended in its work-up. This report describes 6 children with selective mutism who were found to have a history of epilepsy and abnormal interictal or subclinical electroencephalography recordings. Two of them had benign epilepsy of childhood with centro-temporal spikes. The mutism was not related in time to the presence of active seizures. While seizures could be controlled in all children by medications, the mutism resolved only in 1. Although the discha

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Ko, Ara, Juhyun Kong, Furkat Samadov, et al. "Significance of Polyspikes on Electroencephalography in Children with Focal Epilepsy." Annals of Child Neurology 30, no. 2 (2022): 45–52. http://dx.doi.org/10.26815/acn.2022.00024.

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Purpose: Epilepsy is one of the most common neurological disorders in both adults and children. After detailed history-taking, electroencephalography (EEG) is the most important investigation in the evaluation of epilepsy patients. Polyspikes, defined as a sequence of two or more spikes, are among the findings that can be seen on EEGs of epilepsy patients, but the literature on their significance in focal epilepsy patients is scarce. Therefore, in the current study, we investigated the significance of polyspikes on EEG in childhood focal epilepsy. Methods: A retrospective analysis was conducte

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Ahmad, Fawad, Wasim Alamgir, Imran Ahmad, Saima Shafait, Anusha Pervaiz, and Zahid Farooq Baig. "A study of Electroencephalography Findings and its Prognostic Value in Severe COVID-19 Patients Admitted at Intensive Care Unit." Pakistan Armed Forces Medical Journal 74, no. 2 (2024): 273–76. http://dx.doi.org/10.51253/pafmj.v74i2.7446.

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Objective: To study electroencephalography patterns in COVID-19 patients admitted to intensive care unit and find the association of these patterns with outcome. Study Design: Comparative cross-sectional study. Place and Duration of Study: Intensive Care Unit, Pak Emirates Military Hospital, Rawalpindi Pakistan, from Nov 2020 to Mar 2021. Methodology: Eighteen electroencephalograms in COVID-19 patients with Encephalopathy were recorded using a 10-20 electrode system. The duration of each recording was 30 minutes. Traces were analysed by a neurologist for delta slowing, epileptiform discharges,

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Nathoo, N., D. Anderson, and J. Jirsch. "P.010 Extreme delta brush in anti-NMDAR encephalitis correlates with poor functional outcome and death." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 49, s1 (2022): S10. http://dx.doi.org/10.1017/cjn.2022.113.

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Background: The electroencephalography (EEG) pattern extreme delta brush (EDB) is felt to be highly specific for anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis. This study aimed to characterize EEG findings in anti-NMDAR encephalitis patients looking for the proportion of abnormal EEGs, presence of EDB, and to relate EDB to clinical outcomes (Glasgow Outcomes Scale (GOS) at 6 months, need for ICU admission, and death). Methods: This retrospective single centre study included anti-NMDAR encephalitis patients who had ≥1 EEGs obtained from 2014-2021. EEGs were retrospectively analyzed by

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Setz, J. M., A. A. A. van der Linde, G. P. J. M. Gerrits, and J. Meulstee. "EEG Findings in an Eleven-Year-Old Girl with Mercury Intoxication." Clinical EEG and Neuroscience 39, no. 4 (2008): 210–13. http://dx.doi.org/10.1177/155005940803900412.

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An 11-year-old female was seen at our outpatient clinic with a broad variety of symptoms that were due to elemental mercury intoxication. Electromyography and sequential electroencephalography findings obtained at days 2, 36, 88 and 148 are described. The patient was treated with chelation therapy during which she clinically improved considerably. A profound decrease in urinary mercury concentration occurred as well as normalization of the electroencephalogram.

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Koponen, Hannu. "Electroencephalographic Indices for Diagnosis of Delirium." International Psychogeriatrics 3, no. 2 (1991): 249–51. http://dx.doi.org/10.1017/s1041610291000704.

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The central nervous system electrical potentials recorded by the EEG are sensitive to alterations in the levels of consciousness and attention (Mesulam, 1986). Thus it is understandable that previous studies on delirious patients using routine EEGs have shown an increase of slow-wave activity and slowing and disruption of the normal alpha rhythm (Romano & Engel, 1944). At present, the electrocephalogram is widely accepted as a valuable ancillary laboratory procedure for diagnosis and serial evaluation of delirium, as EEG changes often accompany delirium.

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Bone, Megan, Kimberly Goodspeed, and Deepa Sirsi. "Epilepsy and electroencephalography in Pitt-Hopkins syndrome." Journal of Translational Genetics and Genomics 6 (2022): 169–78. http://dx.doi.org/10.20517/jtgg.2021.56.

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Aim: Pitt-Hopkins syndrome (PTHS) is a rare neurodevelopmental disorder caused by mono-allelic loss of function variants of transcription factor 4 (TCF4), which plays a key role in early brain developmental and neuronal differentiation. Up to one-half of patients with PTHS will have epilepsy; however, little is known about the characteristic electroencephalogram (EEG) findings in this population. Because there is significant phenotypic overlap between PTHS and other neurodevelopmental disorders such as Angelman syndrome and Rett syndrome, which have characteristic EEG patterns, exploration of

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Xie, Shengkun, and Sridhar Krishnan. "Dynamic Principal Component Analysis with Nonoverlapping Moving Window and Its Applications to Epileptic EEG Classification." Scientific World Journal 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/419308.

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Classification of electroencephalography (EEG) is the most useful diagnostic and monitoring procedure for epilepsy study. A reliable algorithm that can be easily implemented is the key to this procedure. In this paper a novel signal feature extraction method based on dynamic principal component analysis and nonoverlapping moving window is proposed. Along with this new technique, two detection methods based on extracted sparse features are applied to deal with signal classification. The obtained results demonstrated that our proposed methodologies are able to differentiate EEGs from controls an

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Ivanov, A. A. "The structure of modern EEG recorder." Epilepsy and paroxysmal conditions 14, no. 4 (2023): 362–78. http://dx.doi.org/10.17749/2077-8333/epi.par.con.2022.138.

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The article is aimed at familiarizing medical specialists involved in registration and analysis of electroencephalographic (EEG) examinations with the basic principles of operation and the design of a modern EEG recorder. Understanding the technical fundamentals behind operation of EEG equipment should help medical personnel to correctly use all its capabilities and ultimately improve quality of medical care. The basic diagram of the electroencephalograph operation, the types and features of EEG electrodes, the opportunities and limitations of digitally processed bioelectric signals are discus

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KEH, LANCE ONG-SIONG CO TING, ANA MARIA AQUINO CHUPUNGCO, and JOSE PERICO ESGUERRA. "NONLINEAR TIME SERIES ANALYSIS OF ELECTROENCEPHALOGRAM TRACINGS OF CHILDREN WITH AUTISM." International Journal of Bifurcation and Chaos 22, no. 03 (2012): 1250044. http://dx.doi.org/10.1142/s0218127412500447.

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Three methods of nonlinear time series analysis, Lempel–Ziv complexity, prediction error and covariance complexity were employed to distinguish between the electroencephalograms (EEGs) of normal children, children with mild autism, and children with severe autism. Five EEG tracings per cluster of children aged three to seven medically diagnosed with mild, severe and no autism were used in the analysis. A general trend seen was that the EEGs of children with mild autism were significantly different from those with severe or no autism. No significant difference was observed between normal childr

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Schreiner, A., and B. Pohlmann-Eden. "Value of the Early Electroencephalogram after a First Unprovoked Seizure." Clinical Electroencephalography 34, no. 3 (2003): 140–44. http://dx.doi.org/10.1177/155005940303400307.

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Studies on the predictive value of the electroencephalogram (EEG) concerning the risk of seizure recurrence have shown contradictory results. We prospectively studied the predictive value of the standard EEG and EEG with sleep deprivation for seizure relapse in adult patients presenting with a first unprovoked seizure. EEGs were performed on 157 adult patients within the first 48 hours of the first seizure. Additional EEGs with sleep deprivation were obtained in 60 cases. The standard EEG was abnormal in 70.7% and significantly associated with an increased risk of seizure recurrence [risk rati

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Liu, Lei, and Yuhua Tian. "Capsaicin Changes the Pattern of Brain Rhythms in Sleeping Rats." Molecules 28, no. 12 (2023): 4736. http://dx.doi.org/10.3390/molecules28124736.

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The heat and capsaicin sensor TRPV1 ion channels were originally discovered in sensory neurons of dorsal root ganglia, and later found in many other tissues and organs. However, whether TRPV1 channels are present in brain regions other than the hypothalamus has been a subject of debate. Here, we addressed this issue with an unbiased functional test by recording electroencephalograms (EEGs) to examine whether capsaicin injection directly into the rat lateral ventricle could alter brain electrical activity. We observed that EEGs during the sleep stage could be significantly perturbed by capsaici

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Sá, Catarina, Paulo Veloso Gomes, António Marques, and António Correia. "The Use of Portable EEG Devices in Development of Immersive Virtual Reality Environments for Converting Emotional States into Specific Commands." Proceedings 54, no. 1 (2020): 43. http://dx.doi.org/10.3390/proceedings2020054043.

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The application of electroencephalography electrodes in Virtual Reality (VR) glasses allows users to relate cognitive, emotional, and social functions with the exposure to certain stimuli. The development of non-invasive portable devices, coupled with VR, allows for the collection of electroencephalographic data. One of the devices that embraced this new trend is Looxid LinkTM, a system that adds electroencephalography to HTC VIVETM, VIVE ProTM, VIVE Pro EyeTM, or Oculus Rift STM glasses to create interactive environments using brain signals. This work analyzes the possibility of using the Loo

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Lo, Yun, Yi-Tse Hsiao, and Fang-Chia Chang. "Use Electroencephalogram Entropy as an Indicator to Detect Stress-Induced Sleep Alteration." Applied Sciences 12, no. 10 (2022): 4812. http://dx.doi.org/10.3390/app12104812.

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An acute stressor can cause sleep disruptions. Electroencephalography (EEG) is one of the major tools to measure sleep. In rats, sleep stages are classified as rapid-eye movement (REM) sleep and non-rapid-eye movement (NREM) sleep, by different characteristics of EEGs. Sleep alterations after exposure to an acute stress are regularly determined by the power spectra of brain waves and the changes of vigilance stages, and they all depend on EEG analysis. Herein, we hypothesized that the Shannon entropy can be employed as an indicator to detect stress-induced sleep alterations, since we noticed t

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Yamanoi, Takahiro, Hisashi Toyoshima, Toshimasa Yamazaki, Shin-ichi Ohnishi, Michio Sugeno, and Elie Sanchez. "Micro Robot Control by Use of Electroencephalograms from Right Frontal Area." Journal of Advanced Computational Intelligence and Intelligent Informatics 13, no. 2 (2009): 68–75. http://dx.doi.org/10.20965/jaciii.2009.p0068.

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In order to develop a brain machine interface, the authors have investigated the brain activity during human recognition of characters and symbols representing directional meaning. They have recorded electroencephalograms (EEGs) from subjects viewing four types of Kanji (Chinese characters being used currently in the Japanese language) and arrows that were presented on a CRT. Each of the four characters or symbols denoted direction for upward, downward, leftward and rightward, respectively. Subjects were asked to read the characters or symbols, silently. EEGs were averaged for each stimulus ty

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