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continuous eeg monitoring

Yannick Fogang, Benjamin Legros, Chantal Depondt, Nicolas Mavroudakis, Nicolas Gaspard
INTRODUCTION: Seizures are common in critically ill patients and prevalence can exceed 30% in the neuro-intensive care unit (ICU). Continuous EEG monitoring (cEEG) is the gold standard for seizure detection in critically ill patients. OBJECTIVES: To determine the yield of intermittent EEG (iEEG) to detect critically ill adult patients with seizures and to identify the factors that affect this yield. METHODS: We retrospectively analyzed cEEG data and medical records from 977 consecutive critically ill patients undergoing cEEG...
October 19, 2016: Neurophysiologie Clinique, Clinical Neurophysiology
Benjamin Albright, Roni Dhaher, Helen Wang, Roa Harb, Tih-Shih W Lee, Hitten Zaveri, Tore Eid
Loss of glutamine synthetase (GS) in hippocampal astrocytes has been implicated in the causation of human mesial temporal lobe epilepsy (MTLE).However, the mechanism by which the deficiency in GS leads to epilepsy is incompletely understood. Here we ask how hippocampal GS inhibition affects seizure phenotype and neuronal activation during epilepsy development (epileptogenesis). Epileptogenesis was induced by infusing the irreversible GS blocker methionine sulfoximine (MSO) unilaterally into the hippocampal formation of rats...
October 18, 2016: Experimental Neurology
Michael J Murray, Heidi DeBlock, Brian Erstad, Anthony Gray, Judi Jacobi, Che Jordan, William McGee, Claire McManus, Maureen Meade, Sean Nix, Andrew Patterson, M Karen Sands, Richard Pino, Ann Tescher, Richard Arbour, Bram Rochwerg, Catherine Friederich Murray, Sangeeta Mehta
OBJECTIVE: To update the 2002 version of "Clinical practice guidelines for sustained neuromuscular blockade in the adult critically ill patient." DESIGN: A Task Force comprising 17 members of the Society of Critical Medicine with particular expertise in the use of neuromuscular-blocking agents; a Grading of Recommendations Assessment, Development, and Evaluation expert; and a medical writer met via teleconference and three face-to-face meetings and communicated via e-mail to examine the evidence and develop these practice guidelines...
November 2016: Critical Care Medicine
G Bryan Young
No abstract text is available yet for this article.
October 14, 2016: Resuscitation
Santoshi Billakota, Saurabh R Sinha
INTRODUCTION: Continuous EEG (cEEG) monitoring is used in the intensive care unit (ICU) setting to detect seizures, especially nonconvulsive seizures and status epilepticus. The utility and impact of such monitoring in non-ICU patients are largely unknown. METHODS: Hospitalized patients who were not in an ICU and underwent cEEG monitoring in the first half of 2011 and 2014 were identified. Reason for admission, admitting service (neurologic and nonneurologic), indication for cEEG, comorbid conditions, duration of recording, EEG findings, whether an event/seizure was recorded, and impact of EEG findings on management were reviewed...
October 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
Sebastian Pollandt, Bichun Ouyang, Thomas P Bleck, Katharina M Busl
PURPOSE: Subdural hematomas (SDH) are associated with seizures and epileptiform discharges, but little is known about the prevalence and impact of seizures, status epilepticus and epileptiform discharges on outcomes in patients with isolated acute SDH (aSDH). METHODS: Continuous EEG reports from 76 adult patients admitted to Rush University Medical Center with aSDH between 01/2009 and 03/2012 were reviewed. Clinical and radiographic findings, comorbidities, treatment, and outcome parameters mortality, discharge destination, need for tracheostomy/percutaneous endoscopic gastrostomy (PEG) placement and length of stay (LOS) were assessed...
June 20, 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
Sami Al Kasab, Rachael A Dawson, Jorge L Jaramillo, Jonathan J Halford
OBJECTIVE: The three important questions in video-EEG monitoring are (1) whether it is productive to monitor patients with low outpatient seizure frequency, (2) whether rapid down-titration of antiepileptic drugs (AEDs) during EMU admission helps generate more recorded seizures, and (3) how long a patient who has not yet had a seizure should be monitored in the EMU. This study aimed to answer these three questions. METHODS: Preadmission seizure frequency, times of AED administration, and times of seizure occurrence were collected on all adult patients admitted to the EMU at the Medical University of South Carolina (MUSC) between 2012 and 2014 - a total of 439 patients...
October 9, 2016: Epilepsy & Behavior: E&B
Katrina Ducis, Jian Guan, Michael Karsy, Robert J Bollo
Epilepsy is a common disease in the pediatric population, and the majority of cases are controlled with medications and lifestyle modification. For the children whose seizures are pharmacoresistant, continued epileptic activity can have a severely detrimental impact on cognitive development. Early referral of children with drug-resistant seizures to a pediatric epilepsy surgery center for evaluation is critical to achieving optimal patient outcomes. There are several components to a thorough presurgical evaluation, including a detailed medical history and physical examination, noninvasive testing including electroencephalogram, magnetic resonance imaging (MRI) of the brain, and often metabolic imaging...
July 2016: Translational pediatrics
Patrick H Finan, Jessica M Richards, Charlene E Gamaldo, Dingfen Han, Jeannie Marie Leoutsakos, Rachel Salas, Michael R Irwin, Michael T Smith
OBJECTIVE: To evaluate the validity of an ambulatory electroencephalographic (EEG) monitor for the estimation of sleep continuity and architecture in healthy adults. METHODS: Healthy, good sleeping participants (N = 14) were fit with both an ambulatory EEG monitor (Sleep Profiler) and a full polysomnography (PSG) montage. EEG recordings were gathered from both devices on the same night, during which sleep was permitted uninterrupted for eight hours. The study was set in an inpatient clinical research suite...
September 29, 2016: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
Zachary D Threlkeld, Mohan Kottapally, Aimee Aysenne, Nerissa Ko
Intracranial pressure (ICP) monitoring frequently guides key decisions in the management of diseases causing intracranial hypertension. Although typically measured by invasive means, contraindications may leave the clinician with little recourse for dynamic ICP evaluation-particularly when the patient's mental status is compromised. We describe here a healthy 18-year-old woman who subacutely progressed to coma due to diffuse cerebral venous sinus thrombosis. Heparinization precluded the use of invasive ICP monitoring, and electroencephalography (EEG) was used novelly as a surrogate ICP monitor...
October 2016: Neurohospitalist
Zachary A Vesoulis, Christopher McPherson, Jeffrey J Neil, Amit M Mathur, Terrie E Inder
Background: Although evidence suggests that methylxanthines may lower the seizure threshold, the effect of high-dose caffeine on seizure burden in preterm infants is not known. This study reports a secondary post hoc analysis of a randomized controlled trial of early high-dose caffeine citrate therapy in preterm infants, evaluating the effect of caffeine on the seizure burden using amplitude-integrated electroencephalography (aEEG). Methods: Seventy-four preterm infants (≤30 weeks gestation) were randomized to receive high-dose (n = 37, 80 mg/kg over 36 hours) or standard-dose (n = 37, 30 mg/kg over 36 hours) caffeine citrate over the first 36 hours followed by standard maintenance therapy...
September 1, 2016: Journal of Caffeine Research
Diosely C Silveira, Mahrukh Bashir, Joshua Daniel, Michelle H Lucena, Frank Bonpietro
We report on a 20-year-old patient with a 6-month history of recurrent abdominal pain and a 3-day history of vomiting, hypertension, seizures, and encephalopathy. The brain MRI showed posterior reversible encephalopathy syndrome, and continuous EEG (cEEG) monitoring showed lateralized periodic discharges plus fast activity. Comprehensive CSF studies were negative. Because of severe abdominal pain without a definite etiology, we requested urine porphobilinogen and serum and fecal porphyrins, which suggested acute intermittent porphyria (AIP)...
2016: Epilepsy & Behavior Case Reports
Laura Bennet, Karinna L Fyfe, Stephanie R Yiallourou, Henriette Merk, Flora Y Wong, Rosemary S C Horne
AIM: Limited two-channel electroencephalography (EEG) and amplitude-integrated EEG (aEEG) monitorings are being increasingly used; however, these measurements have not been compared with polysomnographic monitoring, the gold standard for determining infant sleep states. We aimed to determine the accuracy of two-channel EEG and aEEG recordings in defining sleep states and wakefulness in term infants compared to polysomnographic monitoring. METHODS: Sleep was assessed in eight healthy term born infants (mean: 34 ± 3 days), using simultaneous polysomnography (Compumedics S-Series) and a two-channel EEG monitor (Brainz BRM2)...
September 23, 2016: Acta Paediatrica
Ala Birca, Vasily A Vakorin, Prashob Porayette, Sujana Madathil, Vann Chau, Mike Seed, Sam M Doesburg, Susan Blaser, Dragos A Nita, Rohit Sharma, Emma G Duerden, Edward J Hickey, Steven P Miller, Cecil D Hahn
OBJECTIVE: To evaluate whether structural and microstructural brain abnormalities in neonates with congenital heart disease (CHD) correlate with neuronal network dysfunction measured by analysis of EEG connectivity. METHODS: We studied a prospective cohort of 20 neonates with CHD who underwent continuous EEG monitoring before surgery to assess functional brain maturation and network connectivity, structural magnetic resonance imaging (MRI) to determine the presence of brain injury and structural brain development, and diffusion tensor MRI to assess brain microstructural development...
September 2016: Annals of Clinical and Translational Neurology
Kapil Gururangan, Babak Razavi, Josef Parvizi
OBJECTIVE: To investigate the utility of electroencephalography (EEG) for evaluation of patients with altered mental status (AMS). METHODS: We retrospectively reviewed 200 continuous EEGs (cEEGs) obtained in ICU and non-ICU wards and 100 spot EEGs (sEEGs) obtained from the emergency department (ED) of a large tertiary medical center. Main outcomes were access time (from study request to hookup), and diagnostic yield (percentage of studies revealing significant abnormality)...
October 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
Tristan T Sands, Tiffani L McDonough
PURPOSE OF REVIEW: This article strives to review and summarize selected recent literature and topics contributing to a greater understanding of the diagnosis and treatments of neonatal seizures that have emerged in the past several years. RECENT FINDINGS: Continuous EEG is recommended as the gold standard for neonatal seizure monitoring as it can provide additional information that may stratify patients by etiology, as well as identify at-risk groups of newborns for neuromonitoring...
October 2016: Current Neurology and Neuroscience Reports
Yuichi Kubota, Hidetoshi Nakamoto, Takakazu Kawamata
Herein, we review the current state of nonconvulsive status epilepticus (NCSE). NCSE has recently been recognized as one of the causes of unexplained impaired consciousness in the neurosurgical or neurocritical setting. The causes of NCSE include not only central nervous system disorders such as craniotomy, stroke, traumatic brain injury, and central nervous system inflammation, but also severe critical conditions such as sepsis and uremia, among others. NCSE shows no overt clinical manifestations; therefore, prompt and correct diagnosis is difficult...
October 15, 2016: Neurologia Medico-chirurgica
Fernando Mendes Paschoal, Ricardo Carvalho Nogueira, Karla De Almeida Lins Ronconi, Marcelo de Lima Oliveira, Manoel Jacobsen Teixeira, Edson Bor-Seng-Shu
Acute liver failure, also known as fulminant hepatic failure (FHF), embraces a spectrum of clinical entities characterized by acute liver injury, severe hepatocellular dysfunction, and hepatic encephalopathy. Cerebral edema and intracranial hypertension are common causes of mortality in patients with FHF. The management of patients who present acute liver failure starts with determining the cause and an initial evaluation of prognosis. Regardless of whether or not patients are listed for liver transplantation, they should still be monitored for recovery, death, or transplantation...
August 8, 2016: World Journal of Hepatology
Sarah E Schmitt
INTRODUCTION: Seizures in the intensive care unit (ICU) are often subtle, and may have little or no clinical correlate. This study attempts to determine what clinical features are most strongly associated with the presence of electrographic seizures on continuous EEG (cEEG) monitoring. METHODS: A retrospective review for all patients who underwent cEEG monitoring between Jan. 2003 and Mar. 2009 for either characterization of clinical events or altered mental status was performed...
August 26, 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
Edilberto Amorim, Jon C Rittenberger, Julia J Zheng, M Brandon Westover, Maria E Baldwin, Clifton W Callaway, Alexandra Popescu
OBJECTIVE: Hypoxic brain injury is the largest contributor to disability and mortality after cardiac arrest. We aim to identify electroencephalogram (EEG) characteristics that can predict outcome on cardiac arrest patients treated with targeted temperature management (TTM). METHODS: We retrospectively examined clinical, EEG, functional outcome at discharge, and in-hospital mortality for 373 adult subjects with return of spontaneous circulation after cardiac arrest...
August 20, 2016: Resuscitation
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