37 results on '"Marawar R"'
Search Results
2. Relevance of cerebrospinal fluid findings in patients with multiple sclerosis and seizures
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Sriwastava, S., Yarraguntla, K., Zutshi, D., Basha, M.M., Bernitsas, E., and Marawar, R.
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- 2019
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3. Use of Rydberg atoms to probe negative ion lifetimes.
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Kalamarides, A., Marawar, R. W., Durham, M. A., Lindsay, B. G., Smith, K. A., and Dunning, F. B.
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ANIONS , *ELECTRONS , *CHARGE exchange , *ANGULAR distribution (Nuclear physics) - Abstract
The lifetimes of the transient negative ions formed during dissociative electron capture by CHCl3 and CCl4 have been investigated through studies of electron transfer in collisions with K(nd) Rydberg atoms. Measurements of the velocity and angular distributions of the product positive and negative ions reveal that transient CHCl-[ATOTHER]@B|[/ATOTHER]3 ions formed by Rydberg electron attachment to CHCl3 undergo very rapid dissociation. Similar data indicate that CCl-*4 ions formed through Rydberg electron capture by CCl4 have much longer lifetimes, on the order of 10 to 30 psec, consistent with the predictions of RRKM theory. [ABSTRACT FROM AUTHOR]
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- 1990
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4. Negative ion production in collisions between K(nd) Rydberg atoms and CF3Br and CF2Br2.
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Kalamarides, A., Marawar, R. W., Ling, X., Walter, C. W., Lindsay, B. G., Smith, K. A., and Dunning, F. B.
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ANIONS , *CHARGE exchange , *COLLISIONS (Nuclear physics) , *RYDBERG states , *CARBON compounds - Abstract
Negative ion production via electron transfer in collisions between K(nd) Rydberg atoms and CF3Br and CF2Br2 has been investigated over a wide range of of n (10≤n≤70). For both species, the major negative ion observed is Br-, although with CF2Br2, a small Br-2 signal is also detected. Kinematic studies show that Br- production via dissociative attachment is accompanied by sizable translational energy release (∼0.35 eV for CF3Br; ∼0.2 eV for CF2Br2). These studies further show that, despite this large energy release, post-attachment interactions between the product ions are important at intermediate values of n(n≾20) and suggest that the transient CF3Br-[ATOTHER]@B|[/ATOTHER]and CF2Br2-* ions initially formed by electron capture have quite different lifetimes against dissociation. Cross sections for free-electron attachment to both species are derived from measurements of rate constants for electron transfer at high n. These cross sections are in reasonable agreement with results obtained in free-electron studies using the threshold photoelectron spectroscopy technique. [ABSTRACT FROM AUTHOR]
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- 1990
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5. Use of K(nd) Rydberg atoms to investigate low-energy electron attachment to C2Cl4.
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Marawar, R. W., Walter, C. W., Smith, K. A., and Dunning, F. B.
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COLLISIONS (Nuclear physics) , *TETRACHLOROETHYLENE , *ELECTRON capture , *RYDBERG states , *PHOTOELECTRON spectroscopy - Abstract
An investigation of electron attachment to tetrachloroethylene (C2Cl4) at subthermal energies through studies of K(nd)–C2Cl4 collisions (12≤n≤100) is reported. The data indicate that electron capture can result in the formation of Cl- ions, relatively long-lived C2Cl-4 ions, and C2Cl-4 ions that undergo rapid autodetachment. Cross sections for the production of Cl- and long-lived C2Cl-4 ions through electron capture are derived from the Rydberg atom data and are compared to results obtained using swarm and threshold photoelectron spectroscopy techniques. [ABSTRACT FROM AUTHOR]
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- 1988
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6. Semiclassical model for analysis of dissociative electron transfer reactions involving Rydberg atoms.
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Ling, X., Durham, M. A., Kalamarides, A., Marawar, R. W., Lindsay, B. G., Smith, K. A., and Dunning, F. B.
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OXIDATION-reduction reaction ,RYDBERG states - Abstract
Collisions between atoms in high Rydberg states and molecules that dissociatively attach free low-energy electrons can lead to ionization through capture of the excited electron by the target molecule. A Monte Carlo code is described that models the detailed kinematics of such dissociative electron transfer reactions. The model takes into account the velocity distributions of the reactants, the lifetime and decay energetics of the transient intermediate negative ion, and the electrostatic interaction between the product positive and negative ions. Data for CF3I are presented that illustrate how detailed comparisons between model predictions and experimental data can lead to a better understanding of the dynamics of dissociative electron attachment reactions. In particular, such comparisons can provide estimates of the lifetime of the intermediate negative ions and show how the excess energy of reaction is partitioned between translational and internal degrees of freedom in the dissociation process. [ABSTRACT FROM AUTHOR]
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- 1990
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7. Advanced Data Acquisition System Implementation for the ITER Neutron Diagnostic Use Case Using EPICS and FlexRIO Technology on a PXIe Platform
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Sanz, D., primary, Ruiz, M., additional, Castro, R., additional, Vega, J., additional, Afif, M., additional, Monroe, M., additional, Simrock, S., additional, Debelle, T., additional, Marawar, R., additional, and Glass, B., additional
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- 2016
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8. Advanced Data Acquisition system implementation for the ITER neutron diagnostic use case using EPICS and FlexRIO technology on a PXIe platform
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Sanz, D., primary, Ruiz, M., additional, Castro, R., additional, Vega, J., additional, Afif, M., additional, Monroe, M., additional, Simrock, S., additional, Debelle, T., additional, Marawar, R., additional, and Glass, B., additional
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- 2014
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9. Fast RF power diagnostics for the DIII-D fast wave current drive system using commercial FPGA-based systems
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Runnels, B., primary, Debelle, T., additional, Fredd, E., additional, Greenough, N., additional, Horton, A., additional, Marawar, R., additional, Nagy, A., additional, Pinsker, R. I., additional, Rachniowski, J., additional, Veeramani, A., additional, and Wimmer, C., additional
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- 2013
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10. Near-threshold infrared photodetachment ofAl−: A determination of the electron affinity of aluminum and the range of validity of the Wigner law
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Calabrese, D., primary, Covington, A. M., additional, Thompson, J. S., additional, Marawar, R. W., additional, and Farley, John W., additional
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- 1996
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11. High Resolution Visible Laser Spectroscopy of Molecular Ions
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Tu, Q., primary, Harvey, V. I., additional, Marawar, R. W., additional, and Farley, John W., additional
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- 1996
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12. Diode laser autodetachment spectroscopy
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Marawar, R. W., primary, Cowles, Daniel C., additional, Keeler, Raymond E., additional, White, Andrew P., additional, and Farley, John W., additional
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- 1994
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13. Chemi‐ionization in K2/BrCN collisions
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Durham, M. A., primary, Marawar, R. W., additional, Lindsay, B. G., additional, Smith, K. A., additional, and Dunning, F. B., additional
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- 1992
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14. Velocity dependence of free-ion production in K(np)-SF6collisions: Internal-to-translational energy transfer
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Popple, R. A., primary, Durham, M. A., additional, Marawar, R. W., additional, Lindsay, B. G., additional, Smith, K. A., additional, and Dunning, F. B., additional
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- 1992
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15. Study of low-energy electron attachment to C6F6 using K(nd ) Rydberg atoms.
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Marawar, R. W., Walter, C. W., Smith, K. A., and Dunning, F. B.
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RYDBERG states , *ELECTRONS , *ELECTRON-molecule collisions - Abstract
An investigation of electron attachment to perfluorobenzene at subthermal energies using K(nd) Rydberg atoms is reported. The data indicate that electron capture occurs through two channels, one resulting in formation of long-lived C6F-6 ions, the other yielding C6F-6 ions that undergo rapid autodetachment. The data are compared to results obtained in free-electron studies using swarm and threshold photoelectron spectroscopy techniques. [ABSTRACT FROM AUTHOR]
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- 1988
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16. Near-threshold infrared photodetachment of Al-: A determination of the electron affinity of aluminum and the range of validity of the Wigner law
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Dominic Calabrese, Covington, A. M., Thompson, J. S., Marawar, R. W., and Farley, J. W.
17. ChemInform Abstract: Use of K(nd) Rydberg Atoms to Investigate Low-Energy Electron Attachment to C2Cl4.
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MARAWAR, R. W., primary, WALTER, C. W., additional, SMITH, K. A., additional, and DUNNING, F. B., additional
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- 1988
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18. Late-Onset Temporal Lobe Epilepsy-Differentiating the Gray Matter from the Matter of Gray.
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Marawar R
- Abstract
Competing Interests: The author declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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19. Self-Reported Patient and Provider Satisfaction With Neurology Telemedicine Visits After Rapid Telemedicine Implementation in an Urban Academic Center: Cross-Sectional Survey.
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Robertson N, Syed MJ, Song B, Kaur A, Patel JG, Marawar R, Basha M, and Zutshi D
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- Humans, Male, Cross-Sectional Studies, Female, Adult, Middle Aged, Self Report, Aged, Surveys and Questionnaires, Telemedicine, Patient Satisfaction, Neurology, Academic Medical Centers, COVID-19 epidemiology
- Abstract
Background: Many clinics and health systems implemented telemedicine appointment services out of necessity due to the COVID-19 pandemic., Objective: Our objective was to evaluate patient and general provider satisfaction with neurology telemedicine implementation at an urban academic medical center., Methods: Patients who had completed 1 or more teleneurology visits from April 1 to December 31, 2020, were asked to complete a survey regarding their demographic information and satisfaction with teleneurology visits. Providers of all specialties within the same hospital system were given a different survey to gather their experiences of providing telemedicine care., Results: Of the estimated 1500 patients who had completed a teleneurology visit within the given timeframe, 117 (7.8%) consented to complete the survey. Of these 117 respondents, most appointments were regarding epilepsy (n=59, 50.4%), followed by multiple sclerosis (n=33, 28.2%) and neuroimmunology (n=7, 6%). Overall, 74.4% (n=87) of patients rated their experience as 8 out of 10 or higher, with 10 being the highest satisfaction. Furthermore, 75.2% (n=88) of patients reported missing an appointment in the previous year due to transportation issues and thought telemedicine was more convenient instead. A significant relationship between racial or ethnic group and comfort sharing private information was found (P<.001), with 52% (26/50) of Black patients reporting that an office visit is better, compared to 25% (14/52) of non-Black patients. The provider survey gathered 40 responses, with 75% (n=30) of providers agreeing that virtual visits are a valuable tool for patient care and 80% (n=32) reporting few to no technical issues. The majority of provider respondents were physicians on faculty or staff (n=21, 52%), followed by residents or fellows (n=15, 38%) and nurse practitioners or physician assistants (n=4, 10%). Of the specialties represented, 15 (38%) of the providers were in neurology., Conclusions: Our study found adequate satisfaction among patients and providers regarding telemedicine implementation and its utility for patient care in a diverse urban population. Additionally, while access to technology and technology literacy are barriers to telemedical care, a substantial majority of patients who responded to the survey had access to devices (101/117, 86.3%) and were able to connect with few to no technological difficulties (84/117, 71.8%). One area identified by patients in need of improvement was comfortability in communicating via telemedicine with their providers. Furthermore, while providers agreed that telemedicine is a useful tool for patient care, it limits their ability to perform physical exams. More research and quality studies are needed to further appreciate and support the expansion of telemedical care into underserved and rural populations, especially in the area of subspecialty neurological care., (©Noah Robertson, Maryam J Syed, Bowen Song, Arshdeep Kaur, Janaki G Patel, Rohit Marawar, Maysaa Basha, Deepti Zutshi. Originally published in JMIR Formative Research (https://formative.jmir.org), 30.10.2024.)
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- 2024
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20. Sleeping High and Getting Lost on the Spiky Road: What Affects Visual Memory in Older Adults With Epilepsy, and What Can We Do About It?
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Marawar R
- Abstract
Competing Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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21. Get Out the Door: Ambulatory EEG Trumps Routine EEG in the Detection of Interictal Epileptiform Abnormalities After a First Unprovoked Seizure.
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Marawar R
- Abstract
Competing Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© The Author(s) 2023.)
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- 2023
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22. Seizure Safari: Bridging the Treatment Gap in Rural Tanzania and Shaking Up Epilepsy Care.
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Marawar R
- Abstract
Competing Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2023
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23. Factors Associated with Refractory Status Epilepticus Termination Following Ketamine Initiation: A Multivariable Analysis Model.
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Srinivas M, Parker D, Millis S, Marawar R, Zutshi D, and Basha MM
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- Humans, Anticonvulsants therapeutic use, Retrospective Studies, Seizures drug therapy, Ketamine therapeutic use, Status Epilepticus etiology
- Abstract
Background: In this study, we identify factors associated with ketamine success in the treatment of refractory status epilepticus (SE). We also evaluate for adverse events including systemic and cerebral hemodynamic stability and fluid volume overload., Methods: In this retrospective, large, single-center, observational study over a 10-year period, 879 consecutive patients receiving intravenous (IV) ketamine were reviewed, and 81 patients were identified as receiving IV ketamine for the treatment of SE. Descriptive analysis was done to determine treatment response and adverse events in patients receiving IV ketamine for SE. Multivariable logistic regression analyses were fitted to determine prediction models for seizure cessation., Results: Permanent cessation of SE was achieved in 49 of 81 (60.5%) of patients for whom ketamine was part of the treatment plan. Of those, 36 (44.4%) were attributed to ketamine as the last drug used (ketamine-associated cessation [AC]). Prior history of epilepsy had an odds ratio of 3.19 (confidence interval 0.83-12.67, p = 0.09) associated with efficacious medication response. Increased latency to ketamine was associated with cessation of SE specifically in patients in the AC group (p = 0.077). Longer SE duration (p = 0.04), administration of ketamine loading dose (bolus; p = 0.03), and anoxia (p = 0.007) were negatively associated with AC. Administration of ketamine loading dose (p = 0.02) and anoxia (p = 0.009) were negatively associated with overall SE cessation. There was no significant impact of ketamine on cerebral hemodynamics, but evidence of fluid volume overload was seen (28.4% of patients)., Conclusions: Our cohort is a large observational study showing a high success rate of permanent cessation of SE after the addition of ketamine. Using multivariable analysis, we demonstrate a significant association with seizure cessation in patients with prior history of epilepsy and those with prolonged latency to ketamine initiation. Furthermore, we describe the impact of fluid volume overload as an anticipated complication with ketamine use., (© 2022. Springer Science+Business Media, LLC, part of Springer Nature and Neurocritical Care Society.)
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- 2023
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24. Impact of ambulatory pharmacist on hospital visits in older adults with epilepsy: A case-control study.
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Burns CV, Lucas K, Faraj M, Millis S, Garwood C, and Marawar R
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- Humans, Aged, Case-Control Studies, Hospitals, Seizures, Pharmacists, Epilepsy drug therapy, Epilepsy epidemiology
- Abstract
Objective: Older adults have the highest prevalence of epilepsy of any age group. Care in this group is complex because of comorbidities, polypharmacy, and cognitive impairment. We aimed to assess the impact of an ambulatory pharmacist in decreasing hospital visits in this group., Methods: We performed a case-control study at a tertiary care center. The study group was seen in a multi-disciplinary older adult epilepsy clinic with the services of an ambulatory pharmacist to help with medication reconciliation, assessment, and adherence. The control clinic also cared for older adults with epilepsy but lacked a pharmacist. The occurrence and factors related to hospital visits were compared three months post-clinic visit. Demographic data were reported using descriptive statistics. A multinomial regression analysis was conducted to assess how well hospital visits could be predicted by pharmacist presence and other relevant variables., Results: Over 19 months, 58 and 74 patients were seen in the study and control groups, respectively. 26.6% and 18.4% of study and control group clinic visits were associated with a hospital visit, respectively (nonsignificant difference). The study group had significantly more patients with cognitive impairment (53.4% vs. 16.2%; p < 0.001), a higher burden of comorbidities as measured by Charlson comorbidity index (CCI) (mean 3.5 vs. 2.9; p = 0.02), and a greater number of patients with >1 seizure per month (17.2% vs. 6.8%) as compared to the control group. Hospital visits unrelated to epilepsy were associated with a higher CCI. Hospital visits related to epilepsy were associated with >1/month seizure frequency (>3 times risk)., Conclusions: This study demonstrates the multifactorial complexity of older adults with epilepsy. While the presence of a pharmacist resulted in similar hospital visits as the control group, the study group had a much more complex patient population. More studies are required to assess the best use of a pharmacist in older adults with epilepsy outpatient care., Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Rohit Marawar has received research grants for an Investigator-initiated trial from Eisai Co. Ltd. that are not related to this study. Carly Burns, Kristen Lucas, Maggie Faraj, Scott Millis, and Candice Garwood declare they have no conflicts of interest., (Copyright © 2023 Elsevier Inc. All rights reserved.)
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- 2023
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25. Understanding the Influence of Hospital Volume on Inpatient Outcomes Following Hospitalization for Status Epilepticus.
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Syed MJ, Zutshi D, Khawaja A, Basha MM, and Marawar R
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- Humans, Hospitalization, Hospitals, High-Volume, Databases, Factual, Length of Stay, Inpatients, Status Epilepticus epidemiology, Status Epilepticus therapy
- Abstract
Background: Prior studies show hospital admission volume to be associated with poor outcomes following elective procedures and inpatient medical hospitalizations. However, it is unknown whether hospital volume impacts Inpatient outcomes for status epilepticus (SE) hospitalizations. In this study, we aimed to assess the impact of hospital volume on the outcome of patients with SE and related inpatient medical complications., Methods: The 2005 to 2013 National Inpatient Sample database was queried using International Classification of Diseases 9th Edition diagnosis code 345.3 to identify patients undergoing acute hospitalization for SE. The National Inpatient Sample hospital identifier was used as a unique facility identifier to calculate the average volume of patients with SE seen in a year. The study cohort was divided into three groups: low volume (0-7 patients with SE per year), medium volume (8-22 patients with SE per year), and high volume (> 22 patients with SE per year). Multivariate logistic regression analyses were used to assess whether medium or high hospital volume had lower rates of inpatient medical complications compared with low-volume hospitals., Results: A total of 137,410 patients with SE were included in the analysis. Most patients (n = 50,939; 37%) were treated in a low-volume hospital, 31% (n = 42,724) were treated in a medium-volume facility, and 18% (n = 25,207) were treated in a high-volume hospital. Patients undergoing treatment at medium-volume hospitals (vs. low-volume hospitals) had higher odds of pulmonary complications (odds ratio [OR] 1.18 [95% confidence interval {CI} 1.12-1.25]; p < 0.001), sepsis (OR 1.24 [95% CI 1.08-1.43] p = 0.002), and length of stay (OR 1.13 [95% CI 1.0 -1.19] p < 0.001). High-volume hospitals had significantly higher odds of urinary tract infections (OR 1.21 [95% CI 1.11-1.33] p < 0.001), pulmonary complications (OR 1.19 [95% CI 1.10-1.28], p < 0.001), thrombosis (OR 2.13 [95% CI 1.44-3.14], p < 0.001), and renal complications (OR 1.21 [95% CI 1.07-1.37], p = 0.002). In addition, high-volume hospitals had lower odds of metabolic (OR 0.81 [95% CI 0.72-0.91], p < 0.001), neurological complications (OR 0.80 [95% CI 0.69-0.93], p = 0.004), and disposition to a facility (OR 0.89 [95% CI 0.82-0.96], p < 0.001) compared with lower-volume hospitals., Conclusions: Our study demonstrates certain associations between hospital volume and outcomes for SE hospitalizations. Further studies using more granular data about the type, severity, and duration of SE and types of treatment are warranted to better understand how hospital volume may impact care and prognosis of patients., (© 2022. Springer Science+Business Media, LLC, part of Springer Nature and Neurocritical Care Society.)
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- 2023
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26. NeuroMeasures-Implementation of a Web-Based, Real-Time Quality Metric Tool to Improve Provider Practices in an Epilepsy Clinic.
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Syed MJ, Marawar R, Basha MM, and Zutshi D
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Background and Objectives: The retrospective nature of most available epilepsy quality improvement (QI) tools focuses on changing health care provider (HCP) clinical habits and documentation practices rather than a focus on real-time patient interventions. Furthermore, patient-reported outcome data are often not available to determine the efficacy of these tools. Our primary objective was to demonstrate the improvement of HCPs' documentation and review of epilepsy quality measures (EQMs) during the patient visit with the implementation of a novel web application, NeuroMeasures. Our secondary objective was to improve the percentage of point-of-care counseling and interventions based on quality measures during the patient encounter based on the results of the NeuroMeasures tool., Methods: Our QI study focused on comparing a preintervention and postintervention cohort of patients with epilepsy (PWE) before the implementation of NeuroMeasures, a web-based application that takes a self-guided patient survey through self-scoring algorithms focused on the American Academy of Neurology (AAN)'s 2017 EQMs. This e-tool then provides the HCP a tool to directly review the EQMs highlighted and perform any necessary counseling or interventions at the point-of-care visit. After intervention, EQMs were gained from the review of the NeuroMeasures HCP quality measures tool and a chart review for physician documentation. Patients with language barriers and severe cognitive disabilities were excluded from the study., Results: The preintervention cohort consisted of 150 unique PWE, and the postintervention cohort included 379 unique adult PWE and 515 total encounters. Overall percentages of review/adherence of EQMs were significantly improved between the preintervention and postintervention group for counseling for women of childbearing potential (91.7%), intractable epilepsy referral to a comprehensive epilepsy center (74%), quality of life assessment (80%), improvement of quality of life measurements (41.7%), and depression and anxiety screening (85.6%), demonstrating a significant increase when compared with the preintervention group ( p < 0.00001)., Discussion: A web-based point-of-care EQM application demonstrated significant improvement of the HCP's ability to perform and review EQMs at the point-of-care patient visit. Furthermore, the application was successful in creating opportunities for direct intervention based on the EQMs and chances for better patient education and provider-patient communication. Further considerations would include automated survey requests and expansion into other AAN QMs., (© 2022 American Academy of Neurology.)
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- 2022
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27. Acute symptomatic seizures and status epilepticus in older adults: A narrative review focusing on management and outcomes.
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Kong WY and Marawar R
- Abstract
A clear narrative of acute symptomatic seizures (ASyS) in older adults is lacking. Older adults (≥60 years) have the highest incidence of seizures of all age groups and necessitate a tailored approach. ASyS has a bimodal peak in infancy and old age (82.3-123.2/100,000/year after 65 years of age). ASyS can represent half of the new-onset seizures in older adults and can progress to acute symptomatic status epilepticus (ASySE) in 52-72% of the patients. Common etiologies for ASyS in older adults include acute stroke and metabolic disturbances. For ASySE, common etiologies are acute stroke and anoxic brain injury (ABI). Initial testing for ASyS should be consistent with the most common and urgent etiologies. A 20-min electroencephalogram (EEG) is less sensitive in older adults than in younger adults and might not help predict chronic epilepsy. The prolonged postictal phase is an additional challenge for acute management. Studies note that 30% of older adults with ASyS subsequently develop epilepsy. The risk of wrongly equating ASyS as the first seizure of epilepsy is higher in older adults due to the increased long-term challenges with chronic anti-seizure medication (ASM) treatment. Specific challenges to managing ASyS in older adults are related to their chronic comorbidities and polypharmacy. It is unclear if the prognosis of ASyS is dependent on the underlying etiology. Short-term mortality is 1.6 to 3.6 times higher than younger adults. ASySE has high short-term mortality, especially when it is secondary to acute stroke. An acute symptomatic etiology of ASySE had five times increased risk of short-term mortality compared to other types of etiology., Competing Interests: RM has received funding for investigator-initiated trial from Eisai Co. The remaining author declares that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Kong and Marawar.)
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- 2022
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28. Rasch analysis of fatigue severity scale in patients with epilepsy.
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Syed MJ, Millis SR, Marawar R, Basha MM, and Zutshi D
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- Adult, Humans, Middle Aged, Reproducibility of Results, Severity of Illness Index, Surveys and Questionnaires, Epilepsy complications, Epilepsy diagnosis, Fatigue diagnosis, Fatigue epidemiology, Fatigue etiology
- Abstract
Objective: To utilize the Rasch model to validate and assess the psychometric properties of the Fatigue Severity Scale (FSS) in patients with epilepsy., Methods: A total of 307 patients (age > 18 years) with a confirmed diagnosis of epilepsy were consented to participate. Exclusion criteria included patients with psychogenic nonepileptic events, cognitive disabilities, and patients who did not speak/understand English. The nine-step FSS was programmed into software administered to patients on electronic tablets, and patient responses were auto-scored. The Rasch rating scale model (RSM) was used to evaluate the unidimensionality, reliability, and targeting of the FSS. To assess unidimensionality, we examined infit and outfit mean squares. We also assessed unidimensionality of the FSS using a principal component analysis of Rasch residuals, where residuals are understood as the difference between observed and expected data values. We evaluated the internal consistency of person and item performance by examining separation reliability estimates and separation ratio. Differential Item Functioning (DIF) was calculated for gender., Results: There was mixed evidence regarding the extent to which the FSS fit the Rasch model. Outfit values ranged from 0.52 to 2.72 and infit values were 0.60 to 2.18, strongly suggesting the presence of misfitting items: Item 1 ("My motivation is lower when I am fatigued") and Item 2 ("Exercise brings on my fatigue")., Significance: The nine-item FSS showed fair psychometric properties in this sample of patients with epilepsy. Our study provides unique, supportive information for the use of a modified version of the FSS, omitting the first two items, in patients with epilepsy. Given the prevalence of fatigue and other neuropsychiatric comorbidities of epilepsy, having a validated fatigue scale can aid healthcare providers to identify moderate-to-severe fatigue levels in patients with epilepsy and address the plausible risk factors., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier Inc. All rights reserved.)
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- 2022
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29. Implementation of an older adult epilepsy clinic utilizing pharmacist services.
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Marawar R, Faraj M, Lucas K, Burns CV, and Garwood CL
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- Aged, Ambulatory Care, Ambulatory Care Facilities, Humans, Male, Medication Reconciliation, Retrospective Studies, Epilepsy drug therapy, Pharmacists
- Abstract
Background: Antiseizure medications are commonly associated with adverse effects including behavioral and cognitive issues, drug interactions, idiosyncratic reactions, and long-term complications, which can lead to non-adherence. At the same time, there are limited reports describing multidisciplinary models of epilepsy care that include pharmacists., Objective: To describe the pharmacist services in an epilepsy clinic for older adults and document the patient care delivered using this design., Practice Description: A subspecialty older adult epilepsy clinic, embedded within a neurology clinic, in an urban academic medical center., Practice Innovation: Integration of pharmacy services to document medication history, provide medication reconciliation, identify medication-related problems, and make interventions., Evaluation Methods: Data were retrospectively evaluated for the patients seen by the pharmacist and epilepsy team between July 2019 and January 2021. Data were summarized with descriptive statistics., Results: Fifty-eight patients with a total of 94 encounters (70.7% of all specialty clinic visits) were seen collaboratively by the physician and the pharmacist. The majority of patients were African American (87.9%), aged 63.7 ± 8.2 years, and more frequently male (58.6%), and a high proportion had some baseline memory loss or diagnosis of dementia (53.4%). Medication reconciliation occurred in 94 (100%) encounters. More than half the encounters required reconciliation to the existing medication list by adding medication (55.3 % of encounters) or deleting mediations (53.2% of encounters). Presence of adverse effects was the most common medication-related problem identified (23.4%). Resolutions to the medication-related problems were also reported., Conclusion: The population of older adults with epilepsy is expected to increase in prevalence. Pharmacists are able to impact medication-related problems in a vulnerable, high-risk patient population. The multidisciplinary model we describe here can be used as a template to provide care in ambulatory care practices involving other neurology specialties with a high proportion of older adult patients., (Copyright © 2021 American Pharmacists Association®. Published by Elsevier Inc. All rights reserved.)
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- 2021
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30. Racial and ethnic trends in antiseizure medications trial enrolment: A systematic review using ClinicalTrials.gov.
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Kong WY, Saber H, Marawar R, and Basha MM
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- Clinical Trials as Topic, Ethnic and Racial Minorities, Female, Humans, Male, Seizures drug therapy, United States, Ethnicity, Minority Groups, Patient Selection
- Abstract
Objective: To describe the racial and gender distribution in antiseizure medications (ASM) clinical trials using a systemic review of clinical trial registry database., Methods: We searched ClinicalTrials.gov database for ASM trials registered from September 1988 to January 2019. All randomized and non-randomized trials investigating ASM for epilepsy were included. Trials with intervention other than ASM or condition other than epilepsy were excluded. Data on age, race, ethnicity, and gender were extracted directly from database and from published data where available. Study location, trial identifier, year of completion, and funding sources were also collected. Meta-analysis of proportions was conducted using R software., Result: Two hundred and thirty studies conducted globally with 39,576 participants were included. Overall, there are 53 % male on all registered ASM studies globally. For trials conducted in the United States (61 studies/5126 participants), 52 % of the participants were male with the following weighted racial distribution (80 % White 13 % Black 3% Asian 7% Hispanic). Subgroup analysis revealed that non-pharma-sponsored studies (50 studies, 4296 participants) have a higher representation of minorities as compared to pharma-sponsored studies (180 studies, 35,280 participants), including Hispanic (9% vs 3% respectively) and Black (18 % vs 11 % respectively). Temporal trends in racial distribution were noted when the duration of 2007-2019 was split into two groups: 2007-2013 (0% Asian, 5% Hispanic, 20 % Black); 2014-2019 (4% Asian, 7% Hispanic, 8% Black)., Conclusion: In this systematic review, participation of racial and ethnic minorities of Asian and Hispanic background was under-represented. Disparities of all minorities including Black participants was more notable over time and in studies sponsored by industry. Generalizability of ASM clinical trials to certain subgroups should be further examined., (Copyright © 2021 Elsevier B.V. All rights reserved.)
- Published
- 2021
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31. Outcomes of seizures, status epilepticus, and EEG findings in critically ill patient with COVID-19.
- Author
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Danoun OA, Zillgitt A, Hill C, Zutshi D, Harris D, Osman G, Marawar R, Rath S, Syed MJ, Affan M, Schultz L, and Wasade VS
- Subjects
- Adult, Aged, Aged, 80 and over, Critical Illness, Electroencephalography, Female, Humans, Male, Middle Aged, Retrospective Studies, SARS-CoV-2, Seizures, Young Adult, COVID-19, Status Epilepticus
- Abstract
Objective: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has a myriad of neurological manifestations and its effects on the nervous system are increasingly recognized. Seizures and status epilepticus (SE) are reported in the novel coronavirus disease (COVID-19), both new onset and worsening of existing epilepsy; however, the exact prevalence is still unknown. The primary aim of this study was to correlate the presence of seizures, status epilepticus, and specific critical care EEG patterns with patient functional outcomes in those with COVID-19., Methods: This is a retrospective, multicenter cohort of COVID-19-positive patients in Southeast Michigan who underwent electroencephalography (EEG) from March 12th through May 15th, 2020. All patients had confirmed nasopharyngeal PCR for COVID-19. EEG patterns were characterized per 2012 ACNS critical care EEG terminology. Clinical and demographic variables were collected by medical chart review. Outcomes were divided into recovered, recovered with disability, or deceased., Results: Out of the total of 4100 patients hospitalized with COVID-19, 110 patients (2.68%) had EEG during their hospitalization; 64% were male, 67% were African American with mean age of 63 years (range 20-87). The majority (70%) had severe COVID-19, were intubated, or had multi-organ failure. The median length of hospitalization was 26.5 days (IQR = 15 to 44 days). During hospitalization, of the patients who had EEG, 21.8% had new-onset seizure including 7% with status epilepticus, majority (87.5%) with no prior epilepsy. Forty-nine (45%) patients died in the hospital, 46 (42%) recovered but maintained a disability and 15 (14%) recovered without a disability. The EEG findings associated with outcomes were background slowing/attenuation (recovered 60% vs recovered/disabled 96% vs died 96%, p < 0.001) and normal (recovered 27% vs recovered/disabled 0% vs died 1%, p < 0.001). However, these findings were no longer significant after adjusting for severity of COVID-19., Conclusion: In this large multicenter study from Southeast Michigan, one of the early COVID-19 epicenters in the US, none of the EEG findings were significantly correlated with outcomes in critically ill COVID-19 patients. Although seizures and status epilepticus could be encountered in COVID-19, the occurrence did not correlate with the patients' functional outcome., (Copyright © 2021 Elsevier Inc. All rights reserved.)
- Published
- 2021
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32. Atypical representation of sensorimotor cortex in a patient with autism and epilepsy confirmed by direct electrocortical stimulation.
- Author
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Marawar R, Klinger N, Tarbox-Berry SI, Mittal S, and Shah AK
- Abstract
Prior studies have used functional neuroimaging to demonstrate that the organization of the autistic brain is different from that of the non-autistic brain. Similarly, patients with epilepsy have also shown cortical reorganization. We present a case study that provides direct confirmation of disorganized sensorimotor distribution in a patient with autism spectrum disorder and epilepsy. To our knowledge, this is the first time cortical mapping directly showing abnormal cortical organization in a patient with autism spectrum disorder and epilepsy has been reported in the literature., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2020 The Authors.)
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- 2020
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33. Outcomes of status epilepticus and their predictors in the elderly-A systematic review.
- Author
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Sadeghi M, Eshraghi M, Akers KG, Hadidchi S, Kakara M, Nasseri M, Mahulikar A, and Marawar R
- Subjects
- Adult, Aged, Comorbidity, Humans, Intensive Care Units, Retrospective Studies, Anticonvulsants therapeutic use, Status Epilepticus diagnosis, Status Epilepticus epidemiology, Status Epilepticus therapy
- Abstract
Status epilepticus (SE) is associated with high mortality and morbidity. Although SE is frequently seen in elderly patients, there is a lack of a cohesive report of outcome measures and associated factors within this population. Our aim was to systematically review studies reporting outcomes of SE among elderly patients and factors influencing these outcomes. A literature search was conducted in PubMed/MEDLINE, EMBASE, CINAHL Complete, and Cochrane Library from database conception to April 22, 2018. A total of 85 studies were included in this systematic review. The included studies show that mortality is higher in elderly patients than in adult patients. Lesional etiologies, higher number of comorbidities, NCSE, RSE, longer hospital and intensive care unit stays, and infection during hospitalization are associated with poor outcome. Future studies should consider measuring functional outcomes, comparative studies between elderly and adults and AED clinical trials specific for elderly with SE., (Copyright © 2020 British Epilepsy Association. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2020
- Full Text
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34. Seizure occurrence and related mortality in dementia with Lewy bodies.
- Author
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Marawar R, Wakim N, Albin RL, and Dodge H
- Subjects
- Adult, Aged, Aged, 80 and over, Databases, Factual trends, Female, Humans, Lewy Body Disease psychology, Male, Middle Aged, Prospective Studies, Seizures psychology, Lewy Body Disease diagnosis, Lewy Body Disease mortality, Seizures diagnosis, Seizures mortality
- Abstract
Dementia is a risk factor for epilepsy. While seizures have a well-established association with Alzheimer's disease (AD), their association with dementia with Lewy bodies (DLB) is not established. We utilized the National Alzheimer's Coordinating Centers' Uniform Data Set (NACC-UDS V1-3) to analyze occurrence of seizures in DLB and seizure occurrence associations with mortality. We excluded subjects with conventional seizure risk factors. Seizure occurrence was noted in 36 subjects (2.62%) out of 1376 subjects with DLB. Among 500 subjects with pathologically confirmed DLB, seizure occurrence was documented in 19 (3.8%) subjects. Half of the subjects had onset of seizures three years before or after DLB diagnosis. Two-year mortality for subjects with DLB with seizures was high at 52.8% but no increased risk was noted as compared with subjects with DLB without seizures. More prospective and long-term longitudinal studies are needed to clarify relationships between DLB, seizure occurrence, and risk of increased mortality., Competing Interests: Declaration of competing interest Rohit Marawar, Nicole Wakim, Roger Albin, and Hiroko Dodge have no conflicts of interest., (Copyright © 2020 Elsevier Inc. All rights reserved.)
- Published
- 2020
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35. Gabapentin or pregabalin induced myoclonus: A case series and literature review.
- Author
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Desai A, Kherallah Y, Szabo C, and Marawar R
- Subjects
- Adult, Aged, Chronic Pain complications, Female, Humans, Male, Middle Aged, Renal Dialysis, Renal Insufficiency complications, Analgesics adverse effects, Chronic Pain drug therapy, Gabapentin adverse effects, Myoclonus chemically induced, Pregabalin adverse effects
- Abstract
Gabapentin (GBP) and pregabalin (PGB) are FDA approved for adjunctive treatment of partial seizures and for treatment of post-herpetic neuralgia. Both drugs are primarily eliminated by renal excretion. However, PGB or GBP induced myoclonus has only been reported infrequently in case reports/series. It is not discussed with patients and its sudden occurrence can lead to anxiety because of "seizure-like" nature. In addition, first-contact physicians might treat it as seizures, leading to unnecessary tests and aggressive management. Medical records of patients who had myoclonus because of PGB or GBP seen by Neurology service between Jan & May 2017 in inpatient or outpatient setting at our tertiary care setting were reviewed. We identified six patients who were on either GBP or PGB or both who developed likely subcortical myoclonus in the setting of renal insufficiency and one patient who developed myoclonus independent of renal dysfunction. Our results indicate that myoclonus is commonly seen in patients in various clinical settings with or without renal insufficiency, and is independent of the severity of the renal failure. However, this is a reversible side effect of medication and it resolves either by discontinuing the medication, removing the medication with hemodialysis or by improvement of renal dysfunction. With a high index of suspicion, aggressive testing and treatment for other possible conditions like seizures (in non-epilepsy patients) or CNS infections can be avoided. In patients with renal failure and with decreased physiological renal clearance such as the elderly, GBP or PGB dose initiation and changes should be conservative., (Copyright © 2018 Elsevier Ltd. All rights reserved.)
- Published
- 2019
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36. Updates in Refractory Status Epilepticus.
- Author
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Marawar R, Basha M, Mahulikar A, Desai A, Suchdev K, and Shah A
- Abstract
Refractory status epilepticus is defined as persistent seizures despite appropriate use of two intravenous medications, one of which is a benzodiazepine. It can be seen in up to 40% of cases of status epilepticus with an acute symptomatic etiology as the most likely cause. New-onset refractory status epilepticus (NORSE) is a recently coined term for refractory status epilepticus where no apparent cause is found after initial testing. A large proportion of NORSE cases are eventually found to have an autoimmune etiology needing immunomodulatory treatment. Management of refractory status epilepticus involves treatment of an underlying etiology in addition to intravenous anesthetics and antiepileptic drugs. Alternative treatment options including diet therapies, electroconvulsive therapy, and surgical resection in case of a focal lesion should be considered. Short-term and long-term outcomes tend to be poor with significant morbidity and mortality with only one-third of patients reaching baseline neurological status.
- Published
- 2018
- Full Text
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37. Postictal psychosis in a 3-year-old child.
- Author
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Kaur M, Marawar R, and Ritaccio A
- Subjects
- Child, Preschool, Electroencephalography, Female, Humans, Seizures, Febrile drug therapy, Valproic Acid therapeutic use, Psychotic Disorders diagnosis, Psychotic Disorders etiology, Seizures, Febrile complications
- Abstract
A case of a 3½-year-old with clinical and correlated electroencephalographic (EEG) features of postictal psychosis is described. The clinical course and sequence of EEG changes parallel the evolution of changes well described in the adult population. Although well established and defined in the adults, postictal psychosis is rarely characterized and diagnosed in the pediatric population. The true incidence of postictal psychosis in children may be underestimated because of lack of awareness as well as biological differences in presentation of clinical symptoms. To our knowledge, this is the youngest reported case of postictal psychosis in the pediatric population.
- Published
- 2012
- Full Text
- View/download PDF
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