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Andrea O Rossetti, Kaspar Schindler, Vincent Alvarez, Raoul Sutter, Jan Novy, Mauro Oddo, Loane Warpelin-Decrausaz, Stephan Rüegg
Continuous video-EEG is recommended for patients with altered consciousness; as compared to routine EEG (lasting <30 minutes), it improves seizure detection, but is time- and resource-consuming. Although North American centers increasingly implement continuous video-EEG, most other (including European) hospitals have insufficient resources. Only one study suggested that continuous video-EEG could improve outcome in adults, and a recent assessments challenge this view. This article reviews current evidence on the added value for continuous video-EEG in clinical terms and describes a design for a prospective study...
March 8, 2018: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
Arnaud W Thille, Faustine Reynaud, Damien Marie, Stéphanie Barrau, Ludivine Rousseau, Christophe Rault, Véronique Diaz, Jean-Claude Meurice, Rémi Coudroy, Jean-Pierre Frat, René Robert, Xavier Drouot
Sleep is markedly altered in intensive care unit (ICU) patients and may alter respiratory performance. Our objective was to assess the impact of sleep alterations on weaning duration. We conducted a prospective physiological study performed in a French teaching hospital. ICU-patients intubated at least 24 h and difficult-to-wean were included. Complete polysomnography was performed after the first spontaneous breathing trial failure. Presence of atypical sleep, duration of sleep stages particularly rapid eye movement (REM) sleep, and electroencephalogram (EEG) reactivity at eye opening were assessed by a neurologist...
March 8, 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
Nicholas West, Paul B McBeth, Sonia M Brodie, Klaske van Heusden, Sarah Sunderland, Guy A Dumont, Donald E G Griesdale, J Mark Ansermino, Matthias Görges
Sedation in the intensive care unit (ICU) is challenging, as both over- and under-sedation are detrimental. Current methods of assessment, such as the Richmond Agitation Sedation Scale (RASS), are measured intermittently and rely on patients' behavioral response to stimulation, which may interrupt sleep/rest. A non-stimulating method for continuous sedation monitoring may be beneficial and allow more frequent assessment. Processed electroencephalography (EEG) monitors have not been routinely adopted in the ICU...
February 20, 2018: Journal of Clinical Monitoring and Computing
Ajay Goenka, Alexis Boro, Elissa Yozawitz
PURPOSE: To assess the sensitivity of Persyst version 12 QEEG spectrograms to detect focal, focal with secondarily generalized, and generalized onset seizures. METHODS: A cohort of 562 seizures from 58 patients was analyzed. Successive recordings with 2 or more seizures during continuous EEG monitoring for clinical indications in the ICU or EMU between July 2016 and January 2017 were included. Patient ages ranged from 5 to 64 years (mean = 36 years). There were 125 focal seizures, 187 secondarily generalized and 250 generalized seizures from 58 patients analyzed...
January 25, 2018: Seizure: the Journal of the British Epilepsy Association
A J Simpson, M O Cunningham, M R Baker
INTRODUCTION: High frequency oscillations (HFOs) embedded within the somatosensory evoked potential (SEP) are not routinely recorded/measured as part of standard clinical SEPs. However, HFOs could provide important additional diagnostic/prognostic information in various patient groups in whom SEPs are tested routinely. One area is the management of patients with hypoxic ischaemic encephalopathy (HIE) in the intensive care unit (ICU). However, the sensitivity of standard clinical SEP recording techniques for detecting HFOs is unknown...
January 20, 2018: Brain Research Bulletin
Ozlem Gungor Tuncer, Ebru Altindag, Sevda Ozel Yildiz, Mecbure Nalbantoglu, Mehmet Eren Acik, Sedef Tavukcu Ozkan, Betul Baykan
OBJECTIVE: We aimed to assess the usefulness of the Salzburg Consensus Criteria (SCC) for determining the prognosis of critically ill patients with nonconvulsive status epilepticus (NCSE). METHODS: We retrospectively reviewed consecutive patients with unconsciousness followed up in the intensive care unit (ICU). Three clinical neurophysiologists, one of them blinded to clinical and laboratory data, reevaluated all EEG data independently and determined NCSE according to SCC...
January 1, 2018: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
Antti Tolonen, Mika O K Särkelä, Riikka S K Takala, Ari Katila, Janek Frantzén, Jussi P Posti, Markus Müller, Mark van Gils, Olli Tenovuo
Monitoring of quantitative EEG (QEEG) parameters in the intensive care unit (ICU) can aid in the treatment of traumatic brain injury (TBI) patients by complementing visual EEG review done by an expert. We performed an explorative study investigating the prognostic value of 59 QEEG parameters in predicting the outcome of patients with severe TBI. Continuous EEG recordings were done on 28 patients with severe TBI in the ICU of Turku University Hospital. We computed a set of QEEG parameters for each patient, and correlated these to patient outcome, measured by dichotomized Glasgow Outcome Scale (GOS) at a follow-up visit between 6 and 12 months, using area under receiver operating characteristic curve (AUC) as a nonlinear correlation measure...
November 1, 2017: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
Betul Baykan, Ozlem Gungor Tuncer, Ebru Nur Vanli-Yavuz, Leyla Baysal Kirac, Gokcen Gundogdu, Nerses Bebek, Candan Gurses, Ebru Altindag, Erdem Tuzun
PURPOSE: Although its specificity has not previously been investigated in other cohorts, delta brush pattern (DBP) is increasingly reported in the EEGs of patients with anti- N-methyl-d-aspartate receptor (NMDAR) encephalitis. METHODS: We aimed to investigate the DBP in the EEGs of 2 cohorts; patients with change in consciousness for various causes monitored in the intensive care unit (ICU) (n = 106) and patients with mesial temporal lobe epilepsy (MTLE) with or without antineuronal antibodies (n = 76)...
February 1, 2017: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
Laxmi P Dhakal, William O Tatum, William D Freeman
A 54-year-old man was admitted to the intensive care unit with an aneurysmal subarachnoid hemorrhage and subsequently underwent mechanical ventilation and received neuromuscular blocking drugs to control refractory elevated intracranial pressure. During quantitative EEG monitoring, an automated alert was triggered by the train of four peripheral nerve stimulation artifacts. Real-time feedback was made possible due to remote monitoring. This case illustrates how computerized, automated artificial intelligence algorithms can be used beyond typical seizure detection in the intensive care unit for remote monitoring to benefit patient care...
2017: Epilepsy & Behavior Case Reports
Brad J Kolls, Brian E Mace, Keith E Dombrowski
BACKGROUND: Despite data indicating the importance of continuous video-electroencephalography (cvEEG) monitoring, adoption has been slow outside major academic centers. Barriers to adoption include the need for technologists, equipment, and cvEEG readers. Advancements in lower-cost lead placement templates and commercial systems with remote review may reduce barriers to allow community centers to implement cvEEG. Here, we report our experience, lessons learned, and financial impact of implementing a community hospital cvEEG-monitoring program...
October 24, 2017: Neurocritical Care
José L Fernández-Torre, Alicia Paramio-Paz, Juan Carlos Rodríguez-Borregán, Pedro Orizaola, Pilar Bosque-Varela, Miguel A Hernández-Hernández
INTRODUCTION: Metaldehyde self-poisoning in adults is uncommon and, to the best of our knowledge, an episode of super-refractory nonconvulsive status epilepticus (sr-NCSE) following an suicide attempt has not been previously demonstrated. CASE REPORT: A 68-year-old woman was admitted to our Intensive Care Unit (ICU) in coma. On neurologic examination, the pupils were reactive, brainstem reflexes were present and plantar responses were flexor bilaterally. Routine laboratory tests were unremarkable...
October 13, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Romain Jouffroy, Lionel Lamhaut, Alexandra Guyard, Pascal Philippe, Kim An, Christian Spaulding, Frédéric Baud, Pierre Carli, Benoît Vivien
BACKGROUND: Despite increasing use of extracorporeal cardiopulmonary resuscitation (E-CPR) for treatment of refractory cardiac arrest patients, prognosis remains dismal, often resulting in brain-death. However, clinical assessment of brain-death occurence is difficult in post-cardiac arrest patients, sedated, paralyzed, under mild therapeutic hypothermia (MTH). Our objective was to assess the usefulness of Bispectral-Index (BIS) monitoring at bedside for an early detection of brain-death occurrence in refractory cardiac arrest patients treated by E-CPR...
November 2017: Resuscitation
Halil Onder, Ethem Murat Arsava, Mehmet Akif Topcuoglu, Nese Dericioglu
PURPOSE: Ischemic or hemorrhagic stroke are among the most common causes of seizures, especially in the elderly. EEG is the only technique that can detect epileptiform abnormalities (EA) and nonconvulsive status epilepticus (NCSE), which may negatively affect recovery of these patients. Herein we aimed to investigate the potential predictive value of long-term EEG findings in terms of poststroke seizures (PSS) and survival, in stroke patients followed up in the neurological intensive care unit (NICU)...
November 2017: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
Yirui Sun, Jian Yu, Qiang Yuan, Xing Wu, Xuehai Wu, Jin Hu
BACKGROUND: Seizure is a common complication for severe traumatic brain injury (TBI). Valproic acid (VPA) is a first-line antiepileptic drug, though its metabolism is affected by genetic polymorphisms and varies between individuals. The aim of this study was to investigate such association and to explore its influence on the occurrence of early post-traumatic seizure. METHODS: A prospective case control study was conducted from 2012 to 2016 recruiting adult patients with severe TBI...
August 25, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
Guenther Herzer, Claudia Mirth, Udo M Illievich, Wolfgang G Voelckel, Helmut Trimmel
BACKGROUND: Analgesia and sedation are key items in intensive care. Recently published S3 guidelines specifically address treatment of patients with elevated intracranial pressure. METHODS: The Austrian Society of Anesthesiology, Resuscitation and Intensive Care Medicine carried out an online survey of neurointensive care units in Austria in order to evaluate the current state of practice in the areas of analgosedation and delirium management in this high-risk patient group...
July 21, 2017: Wiener Klinische Wochenschrift
M Elizabeth Wilcox, Andrew S Lim, Mary P McAndrews, Richard A Wennberg, Ruxandra L Pinto, Sandra E Black, Karolina D Walczak, Jan O Friedrich, Michael S Taglione, Gordon D Rubenfeld
INTRODUCTION: Up to 9 out of 10 intensive care unit (ICU) survivors will suffer some degree of cognitive impairment at hospital discharge and approximately half will have decrements that persist for years. The mechanisms for this newly acquired brain injury are poorly understood. The purpose of this study is to describe the prevalence of sleep abnormalities and their association with cognitive impairment, examine a well-known genetic risk factor for dementia (Apolipoprotein E ε4) that may allow for genetic risk stratification of ICU survivors at greatest risk of cognitive impairment and determine if electroencephalography (EEG) is an independent predictor of long-term cognitive impairment and possibly a candidate intermediate end point for future clinical trials...
July 13, 2017: BMJ Open
Kyoung Min You, Gil Joon Suh, Woon Yong Kwon, Kyung Su Kim, Sang-Bae Ko, Min Ji Park, Taegyun Kim, Jung-In Ko
INTRODUCTION: We performed this study to investigate whether the SEDline system, a 4-channel-processed electroencephalography (EEG) monitoring device in the frontal area, can detect epileptiform discharges accurately during post-resuscitation care in comatose cardiac arrest survivors. METHODS: Adult comatose cardiac arrest survivors, who were admitted to the intensive care unit (ICU) for post-resuscitation care including TTM, were enrolled. Within 72h post-return of spontaneous circulation (ROSC), conventional EEG was conducted for 30min...
May 13, 2017: Resuscitation
Lotte Sondag, Barry J Ruijter, Marleen C Tjepkema-Cloostermans, Albertus Beishuizen, Frank H Bosch, Janine A van Til, Michel J A M van Putten, Jeannette Hofmeijer
BACKGROUND: We recently showed that electroencephalography (EEG) patterns within the first 24 hours robustly contribute to multimodal prediction of poor or good neurological outcome of comatose patients after cardiac arrest. Here, we confirm these results and present a cost-minimization analysis. Early prognosis contributes to communication between doctors and family, and may prevent inappropriate treatment. METHODS: A prospective cohort study including 430 subsequent comatose patients after cardiac arrest was conducted at intensive care units of two teaching hospitals...
May 15, 2017: Critical Care: the Official Journal of the Critical Care Forum
J Herta, J Koren, F Fürbass, M Hartmann, A Gruber, C Baumgartner
OBJECTIVE: To investigate the effect of systematic electrode reduction from a common 10-20 EEG system on pattern detection sensitivity (SEN). METHODS: Two reviewers rated 17130 one-minute segments of 83 prospectively recorded cEEGs according to the ACNS standardized critical care EEG terminology (CCET), including burst suppression patterns (BS) and unequivocal electrographic seizures. Consensus annotations between reviewers were used as a gold standard to determine pattern detection SEN and specificity (SPE) of a computational algorithm (baseline, 19 electrodes)...
August 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
J Herta, J Koren, F Fürbass, A Zöchmeister, M Hartmann, A Hosmann, C Baumgartner, A Gruber
OBJECTIVE: To assess whether ICU caregivers can correctly read and interpret continuous EEG (cEEG) data displayed with the computer algorithm NeuroTrend (NT) with the main attention on seizure detection and determination of sedation depth. METHODS: 120 screenshots of NT (480h of cEEG) were rated by 18 briefly trained nurses and biomedical analysts. Multirater agreements (MRA) as well as interrater agreements (IRA) compared to an expert opinion (EXO) were calculated for items such as pattern type, pattern location, interruption of recording, seizure suspicion, consistency of frequency, seizure tendency and level of sedation...
June 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
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