Richard A Hrachovy

Summary

Affiliation: Texas Medical Center
Country: USA

Publications

  1. ncbi request reprint The EEG in selected generalized seizures
    Richard A Hrachovy
    Peter Kellaway Section of Neurophysiology, Department of Neurology, Baylor College of Medicine, Houston, Texas 77030, USA
    J Clin Neurophysiol 23:312-32. 2006
  2. ncbi request reprint Infantile epileptic encephalopathy with hypsarrhythmia (infantile spasms/West syndrome)
    Richard A Hrachovy
    Peter Kellaway Section of Neurophysiology, Department of Neurology and Division of Neuroscience, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, U S A
    J Clin Neurophysiol 20:408-25. 2003
  3. ncbi request reprint Automated detection of videotaped neonatal seizures of epileptic origin
    Nicolaos B Karayiannis
    Department of Electrical and Computer Engineering, University of Houston, and Michael E DeBakey Veterans Affairs Medical Center, Houston, Texas 77204 4005, USA
    Epilepsia 47:966-80. 2006
  4. pmc Interictal high frequency oscillations in an animal model of infantile spasms
    James D Frost
    Department of Neurology, Baylor College of Medicine, Houston, TX 77030, USA
    Neurobiol Dis 46:377-88. 2012
  5. ncbi request reprint Automated detection of videotaped neonatal seizures based on motion tracking methods
    Nicolaos B Karayiannis
    Department of Electrical and Computer Engineering, University of Houston, Houston, Texas, USA
    J Clin Neurophysiol 23:521-31. 2006
  6. doi request reprint Intact vs. impaired ictal sensorium: does it affect outcome of psychogenic nonepileptic events following disclosure of diagnosis?
    David K Chen
    Peter Kellaway Section of Neurophysiology, Department of Neurology, Baylor College of Medicine, Houston, TX, USA
    Epilepsy Behav 24:30-5. 2012
  7. pmc Kv4.2 knockout mice demonstrate increased susceptibility to convulsant stimulation
    L Forbes S Barnwell
    Department of Neurology, Baylor College of Medicine, Houston, Texas, USA
    Epilepsia 50:1741-51. 2009
  8. pmc High frequency EEG activity associated with ictal events in an animal model of infantile spasms
    James D Frost
    Department of Neurology Neuroscience, Baylor College of Medicine, Houston, Texas, USA
    Epilepsia 52:53-62. 2011
  9. ncbi request reprint Automated detection of videotaped neonatal seizures based on motion segmentation methods
    Nicolaos B Karayiannis
    Department of Electrical and Computer Engineering, University of Houston, N308 Engineering Building 1, and Michael E DeBakey Veterans Affairs Medical Center, Houston, TX 77204 4005, USA
    Clin Neurophysiol 117:1585-94. 2006
  10. doi request reprint Brief group psychoeducation for psychogenic nonepileptic seizures: a neurologist-initiated program in an epilepsy center
    David K Chen
    Peter Kellaway Section of Neurophysiology, Department of Neurology, Baylor College of Medicine, Houston, Texas, U S A Neurology Care Line, Michael E DeBakey Veterans Affairs Medical Center, Houston, Texas, U S A
    Epilepsia 55:156-66. 2014

Collaborators

Detail Information

Publications23

  1. ncbi request reprint The EEG in selected generalized seizures
    Richard A Hrachovy
    Peter Kellaway Section of Neurophysiology, Department of Neurology, Baylor College of Medicine, Houston, Texas 77030, USA
    J Clin Neurophysiol 23:312-32. 2006
    ....
  2. ncbi request reprint Infantile epileptic encephalopathy with hypsarrhythmia (infantile spasms/West syndrome)
    Richard A Hrachovy
    Peter Kellaway Section of Neurophysiology, Department of Neurology and Division of Neuroscience, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, U S A
    J Clin Neurophysiol 20:408-25. 2003
    ..Finally, the treatment of patients with infantile spasms and their long-term outcome are briefly reviewed...
  3. ncbi request reprint Automated detection of videotaped neonatal seizures of epileptic origin
    Nicolaos B Karayiannis
    Department of Electrical and Computer Engineering, University of Houston, and Michael E DeBakey Veterans Affairs Medical Center, Houston, Texas 77204 4005, USA
    Epilepsia 47:966-80. 2006
    ....
  4. pmc Interictal high frequency oscillations in an animal model of infantile spasms
    James D Frost
    Department of Neurology, Baylor College of Medicine, Houston, TX 77030, USA
    Neurobiol Dis 46:377-88. 2012
    ..Multiunit firing coincident with HFOs is fully consistent with a neocortical hyperexcitability hypothesis particularly since they both occur at seizure onset...
  5. ncbi request reprint Automated detection of videotaped neonatal seizures based on motion tracking methods
    Nicolaos B Karayiannis
    Department of Electrical and Computer Engineering, University of Houston, Houston, Texas, USA
    J Clin Neurophysiol 23:521-31. 2006
    ..The performance targets of the second phase of the project may be achieved by combining the quantitative features described in this paper with those obtained by analyzing motion strength signals produced by motion segmentation methods...
  6. doi request reprint Intact vs. impaired ictal sensorium: does it affect outcome of psychogenic nonepileptic events following disclosure of diagnosis?
    David K Chen
    Peter Kellaway Section of Neurophysiology, Department of Neurology, Baylor College of Medicine, Houston, TX, USA
    Epilepsy Behav 24:30-5. 2012
    ..41, p=0.017) and ensuing (rho=0.43, p=0.015) follow-ups. Our study presents preliminary evidence underscoring the potential clinical significance of ictal sensorial integrity when evaluating patients with PNEE...
  7. pmc Kv4.2 knockout mice demonstrate increased susceptibility to convulsant stimulation
    L Forbes S Barnwell
    Department of Neurology, Baylor College of Medicine, Houston, Texas, USA
    Epilepsia 50:1741-51. 2009
    ..In these studies, we evaluated young adult Kv4.2 knockout mice for spontaneous seizures and the response to convulsant stimulation in the whole animal in vivo and in hippocampal slices in vitro...
  8. pmc High frequency EEG activity associated with ictal events in an animal model of infantile spasms
    James D Frost
    Department of Neurology Neuroscience, Baylor College of Medicine, Houston, Texas, USA
    Epilepsia 52:53-62. 2011
    ..EEG recordings were digitally sampled at 2,048 Hz. HF EEG activity (20-900 Hz) was quantified using compressed spectral arrays and band-pass filtering...
  9. ncbi request reprint Automated detection of videotaped neonatal seizures based on motion segmentation methods
    Nicolaos B Karayiannis
    Department of Electrical and Computer Engineering, University of Houston, N308 Engineering Building 1, and Michael E DeBakey Veterans Affairs Medical Center, Houston, TX 77204 4005, USA
    Clin Neurophysiol 117:1585-94. 2006
    ..This study was aimed at the development of a seizure detection system by training neural networks using quantitative motion information extracted by motion segmentation methods from short video recordings of infants monitored for seizures...
  10. doi request reprint Brief group psychoeducation for psychogenic nonepileptic seizures: a neurologist-initiated program in an epilepsy center
    David K Chen
    Peter Kellaway Section of Neurophysiology, Department of Neurology, Baylor College of Medicine, Houston, Texas, U S A Neurology Care Line, Michael E DeBakey Veterans Affairs Medical Center, Houston, Texas, U S A
    Epilepsia 55:156-66. 2014
    ....
  11. ncbi request reprint A new animal model of infantile spasms with unprovoked persistent seizures
    Chong L Lee
    The Cain Foundation Laboratories, and Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
    Epilepsia 49:298-307. 2008
    ..Progress toward understanding the pathophysiology of this disorder and the development of effective therapies has been hindered by the lack of a relevant animal model. We report here the creation of such a model...
  12. ncbi request reprint Electroencephalographic seizures after neonatal cardiac surgery with high-flow cardiopulmonary bypass
    Dean B Andropoulos
    MHCM, Texas Children s Hospital and Baylor College of Medicine, 6621 Fannin, WT 17417B, Houston, TX 77030, USA
    Anesth Analg 110:1680-5. 2010
    ..We performed video/EEG monitoring before and for 72 hours after neonatal cardiac surgery, using a high-flow CPB protocol and cerebral oxygenation monitoring, to ascertain incidence, severity, and factors associated with EEG seizures...
  13. pmc A triplet repeat expansion genetic mouse model of infantile spasms syndrome, Arx(GCG)10+7, with interneuronopathy, spasms in infancy, persistent seizures, and adult cognitive and behavioral impairment
    Maureen G Price
    Department of Neurology, Baylor College of Medicine, Houston, Texas 77030, USA
    J Neurosci 29:8752-63. 2009
    ..This mouse model narrows the range of critical pathogenic elements within brain inhibitory networks essential to recreate this complex neurodevelopmental syndrome...
  14. ncbi request reprint West's syndrome (infantile spasms). Clinical description and diagnosis
    Richard A Hrachovy
    Baylor College of Medicine, Department of Neurology, Houston, TX 77030, USA
    Adv Exp Med Biol 497:33-50. 2002
    ..West's syndrome is a serious epileptic syndrome which usually begins in the first year of life. It involves seizures known as "infantile spasms". Dr. Hrachovy describes the disorder and its symptoms...
  15. ncbi request reprint Video-EEG monitoring in a geriatric veteran population
    Makoto Kawai
    Peter Kellaway Section of Neurophysiology, Department of Neurology, Baylor College of Medicine, Houston, TX, USA
    J Clin Neurophysiol 24:429-32. 2007
    ..Most of the epileptic events captured were temporal lobe seizures. Video-EEG monitoring in the elderly is useful in the characterization of paroxysmal events...
  16. ncbi request reprint Pathogenesis of infantile spasms: a model based on developmental desynchronization
    James D Frost
    Peter Kellaway Section of Neurophysiology, Department of Neurology, Baylor College of Medicine, Houston, Texas, USA
    J Clin Neurophysiol 22:25-36. 2005
    ..Thus, this concept is compatible with the observed diversity of pathologic findings and multiplicity of etiological associations observed in infantile spasms patients...
  17. ncbi request reprint Detection of pseudosinusoidal epileptic seizure segments in the neonatal EEG by cascading a rule-based algorithm with a neural network
    Nicolaos B Karayiannis
    Department of Electrical and Computer Engineering, N308 Engineering Building 1, University of Houston, Houston, TX 77204 4005, USA
    IEEE Trans Biomed Eng 53:633-41. 2006
    ..The evaluation of the proposed cascaded scheme for the detection of pseudosinusoidal seizure segments reveals its potential as a building block of the automated seizure detection system under development...
  18. doi request reprint Induction of psychogenic nonepileptic events: success rate influenced by prior induction exposure, ictal semiology, and psychological profiles
    David K Chen
    Peter Kellaway Section of Neurophysiology, Department of Neurology, Baylor College of Medicine, Houston, Texas, USA
    Epilepsia 52:1063-70. 2011
    ..To evaluate whether certain preinduction clinical characteristics may influence the success rate of induction...
  19. pmc Altered phosphorylation and localization of the A-type channel, Kv4.2 in status epilepticus
    Joaquin N Lugo
    The Cain Foundation Laboratories, Department of Pediatrics, Houston, Texas, USA
    J Neurochem 106:1929-40. 2008
    ..The finding of decreased Kv4.2 levels in hippocampal synaptosomes and surface membranes suggest additional mechanisms for decreasing the dendritic A-current, which could lead to altered intrinsic membrane excitability during SE...
  20. doi request reprint Identifying depression in epilepsy in a busy clinical setting is enhanced with systematic screening
    David E Friedman
    Peter Kellaway Section of Neurophysiology and Baylor Comprehensive Epilepsy Center, Baylor College of Medicine, Houston, TX 77030, USA
    Seizure 18:429-33. 2009
    ..The purpose of this study was to determine the effect of using a validated self-reporting depression scale on the ability to detect depression in people with epilepsy receiving care in a busy clinical setting...
  21. doi request reprint Infantile spasms
    Richard A Hrachovy
    Peter Kellaway Section of Neurophysiology, Department of Neurology, Baylor College of Medicine, Houston, TX, USA Michael E DeBakey VA Medical Center, Houston, TX, USA Electronic address
    Handb Clin Neurol 111:611-8. 2013
    ..Although the pathophysiological mechanism underlying infantile spasms is unknown, several animal models of infantile spasms have been developed in recent years...
  22. ncbi request reprint Time interval from a brain insult to the onset of infantile spasms
    Mary Anne Guggenheim
    Department of Pediatrics, University of Colorado School of Medicine, Denver, Colorado, USA
    Pediatr Neurol 38:34-7. 2008
    ..The findings refute claims that a close temporal association between an immunization and the onset of infantile spasms establishes causation...
  23. ncbi request reprint A new lethal case of joint contractures, facial abnormalities, pachygyria plus early-onset encephalopathy with a suppression-burst EEG pattern
    Maria P Guerra
    Department of Obstetric and Gynaecology, Section of Neonatology and Intensive Care Unit, University Hospital of Modena, Via del Pozzo 71, 41100 Modena, Italy
    Eur J Paediatr Neurol 11:318-21. 2007
    ..We describe a male infant who represents an additional case of the same lethal syndrome first described in 1989. The patient also presented an early-onset epileptic encephalopathy with a suppression-burst EEG pattern...