Seizures: Mechanisms
Über den Vortrag
Der Vortrag „Seizures: Mechanisms“ von Roy Strowd, MD ist Bestandteil des Kurses „Year 2 – Neurology-Psychiatry“.
Quiz zum Vortrag
Which term is used to describe the beginning step with respect to initiation of a seizure?
- Paroxysmal depolarization shift
- Transition to ictus
- Increased inhibitory tone
- Neuronal synchronization
- Decreased glutamate secretion
Which statement is the most accurate when discussing the first step of seizure initiation?
- Seizures arise from neuronal cell bodies located in the gray matter of the brain.
- Astrocytes surrounding the neurons become deactivated.
- Decreased calcium-channel signaling causes a decrease in neuronal excitement.
- The initial depolarization event can only occur deep within the brain.
- The electroencephalogram will show a slow wave followed by a spike.
Which sentence is the most accurate with respect to neuron synchronization?
- Partial depolarization of a neuron occurs when a large group of surrounding neurons is repeatedly activated.
- Repeated depolarization of neurons can decrease extracellular potassium.
- Excitation threshold is increased, making depolarization more difficult.
- Antiepileptic drugs target the neuron synchronization step.
- Calcium-channel signaling decreases during the neuron synchronization step.
Which statement is the most accurate with respect to neuron inhibition during seizure propagation?
- Antiepileptic drugs act by increasing the neuron inhibition pathways.
- Increased calcium signaling has no long-term effects on neurons after the levels are normalized.
- Glutamate scavenging is increased during seizure propagation.
- Repeated activation of neurons in the hippocampus results in improved inhibitory capacity.
- Having a seizure does not increase the chance of a subsequent attack.
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Dozent des Vortrages Seizures: Mechanisms
Roy Strowd, MD
Dr. Roy Strowd is the Assistant Dean of Undergraduate Medical Education at the Wake Forest Baptist Medical Center, in North Carolina, USA.
He obtained his MD from Wake Forest School of Medicine in 2009, and his MEd from Johns Hopkins University in 2021. Currently, he co-directs the Neurofibromatosis and Tuberous Sclerosis Clinics at Wake Forest Baptist Medical Center, and is a researcher for the Adult Brain Tumor Consortium (ABTC) and Alliance for Clinical Trials in Neuro-Oncology.
Due to his achievements, he earned the M. Brownell Anderson Award from the Association of American Medical Colleges.
Within Lecturio, Dr. Strowd teaches courses on Clinical Neurology.
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This lecture is neat and well explained, and not least exciting.
