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Types of frontal lobe seizures and their localization within the frontal lobes. (Contributed by Dr. Barbara Jobst.)
Jun. 20, 2021
Feb. 15, 2021
Patients with epilepsy frequently complain of sleep issues. Ictal and interictal discharges may disrupt sleep and the regulatory processes associated with sleep. Excessive daytime sleepiness may be related to sleep deprivation, sleep disorder, epilepsy-related sleep disruption, or the effect of medication. Insomnia may be related to poor sleep hygiene, a comorbid sleep disorder, epilepsy-related sleep disruption, or the effect of medication.
Aug. 31, 2020
Both pyridoxine (vitamin B6) overdose and deficiency may cause peripheral neuropathy. Deficiency causes injury of motor and sensory axons whereas toxicity causes a pure sensory neuropathy or neuronopathy with sensory ataxia. Symptoms of deficiency include neuropathy, confusion, dermatitis, and insomnia; the neuronopathy caused by toxicity is characterized by poor coordination, numbness, and decreased sensation to touch, temperature, and vibration.
May. 15, 2021
In patients with primary or isolated agenesis of the corpus callosum, IQ may be normal, but impaired processing between the hemispheres can be demonstrated by detailed psychometric testing and may manifest as deficits in learning and recall. Many genetic alterations have been etiologically linked to agenesis of the corpus callosum, both as isolated developmental events as well as in the context of syndromic clusters.
Aug. 24, 2021
General Child Neurology
Jul. 18, 2020
Headache & Pain
Although usually benign, headache can herald serious intracranial disease. Neuroimaging must be considered whenever secondary causes of headache are suspected. The “SNOOP-4” mnemonic provides a list of red flags that would suggest secondary headache and indicate a need for further evaluation, usually with neuroimaging. Neuroimaging should also be strongly considered in unusual primary headaches.
Sep. 01, 2020
Sleepwalking is a disorder of arousal with ambulation, typically originating from deep (N3) NREM sleep but sometimes from N2. Episodes typically last only a few minutes, but prolonged episodes can occur, especially in the setting of sedative hypnotic medications. The sleepwalker is usually able to navigate obstacles without difficulty and the eyes are open.
Nov. 20, 2020