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Downmodulation of potassium conductances induces epileptic seizures in cortical network models via multiple synergistic factors.
J Neurosci
January 2025
Department of Neuroscience, Brown University, Providence RI, USA.
Voltage-gated potassium conductances [Formula: see text] play a critical role not only in normal neural function, but also in many neurological disorders and related therapeutic interventions. In particular, in an important animal model of epileptic seizures, 4-aminopyridine (4-AP) administration is thought to induce seizures by reducing [Formula: see text] in cortex and other brain areas. Interestingly, 4-AP has also been useful in the treatment of neurological disorders such as multiple sclerosis (MS) and spinal cord injury, where it is thought to improve action potential propagation in axonal fibers.
View Article and Find Full Text PDFPersistent low concentrations of antiepileptics in a critically ill paediatric patient: an example of multiple potential drug interactions.
BMJ Case Rep
January 2025
Clinical Pharmacology, Aalborg University Hospital, Aalborg, Region Nordjylland, Denmark
A middle childhood boy with epilepsy exhibited persistent low concentrations of valproic acid, lamotrigine and topiramate for over 1 month, primarily due to pharmacokinetic interactions involving fosphenytoin, meropenem and phenobarbital. Awareness of these clinically significant interactions is crucial for ensuring effective seizure control. However, further research is needed to establish optimal evidence-based treatment strategies in complex paediatric cases.
View Article and Find Full Text PDFSEEG guided mapping of primary motor cortex in children with epilepsy.
Epilepsy Res
January 2025
Epilepsy Program, Division of Neurology, Department of Pediatrics, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada. Electronic address:
Background: Direct cortical electrical stimulation remains the gold standard for delineation of the primary motor cortex in patients with drug-resistant epilepsy (DRE) undergoing epilepsy surgery evaluation OBJECTIVE: This study aimed to explore the efficacy and safety of functional motor mapping through Stereo-EEG (SEEG) electrode contacts in children with DRE at our institute.
Methods: We performed a retrospective analysis of children who underwent SEEG evaluation and functional cortical mapping via bipolar electrical stimulation at our institution between July 2020 and June 2024. Detailed clinical, radiological and neurophysiological variable were extracted; qualitative and quantitative variables were summarized using appropriate descriptive statistics.
Tranexamic dosing for major joint arthroplasty in adult patients with chronic kidney disease: A pharmacokinetic study and new dosing regimen.
Anesthesiology
January 2025
Department of Anesthesiology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.
Background: Tranexamic acid is an anti-fibrinolytic agent routinely used during hip and knee joint replacement surgery to minimize bleeding. Chronic kidney disease is a common chronic health problem seen among adults requiring major arthroplasty surgery. Tranexamic acid is renally cleared and may accumulate in chronic kidney disease.
View Article and Find Full Text PDFFeasibility, Safety, and Impact of Awake Resection for Recurrent Insular Diffuse Gliomas in Adults.
Neurosurgery
January 2025
Service de Neurochirurgie, GHU-Paris Psychiatrie et Neurosciences, Paris, France.
Background And Objectives: The risk-to-benefit ratio of transopercular awake resection for recurrent insular diffuse gliomas is poorly studied. We assessed feasibility, safety, and efficacy of awake surgical resection of recurrent insular diffuse gliomas in patients with previous treatments (resection and/or radiotherapy and/or chemotherapy and/or combination).
Methods: Observational, retrospective, single-institution cohort analysis (2010-2023) of 123 consecutive adult patients operated on for an insular diffuse glioma (2021 World Health Organization classification) under awake conditions.
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