Kozhevnikov epilepsy miasms: Difference between revisions
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*Kozhevnikov's epilepsia = Epilepsia partialis continua | *Kozhevnikov's epilepsia = Epilepsia partialis continua | ||
*It is a special type of recurrent focal (hands and face) motor epileptic seizure that recur every few seconds or minutes for extended periods (days to years) | *It is a special type of recurrent focal (hands and face) motor epileptic seizure that recur every few seconds or minutes for extended periods (days to years) | ||
*It is | *It is a disease | ||
===Signs and symptoms=== | ===Signs and symptoms=== | ||
*Repetitive focal [[ | *Repetitive focal [[myoclonus]] or [[Jacksonian march]]. | ||
*Todd's phenomenon = Transient unilateral weakness | *Todd's phenomenon = Transient unilateral weakness | ||
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===Causes=== | ===Causes=== | ||
Although these seizures are usually due to large, acute brain lesions resulting from strokes in adults and | Although these seizures are usually due to large, acute brain lesions resulting from strokes in adults and | ||
*Focal cortical inflammatory processes in children ([[ | *Focal cortical inflammatory processes in children ([[Rasmussen's encephalitis]]), possibly caused by chronic viral infections, edema, or autoimmune processes. | ||
*Encephalitis due to a virus, bacterium, or (very rarely) fungus. If a seizure happens during the infection itself, the person most likely doesn't have epilepsy but has "symptomatic seizures" or seizures occurring because of a known injury to the brain. Once the infection is stopped the seizures will stop. Another more common infection is "meningitis", infection of the membranes surrounding the brain. Since this infection does not directly involve the brain it might not appear as a possible cause of epilepsy, but has been shown that meningitis can cause epilepsy, which would give rise to the possibility of developing epilepsy partialis continua. These infections are most likely to result in epilepsy when they occur at an early age. | *Encephalitis due to a virus, bacterium, or (very rarely) fungus. If a seizure happens during the infection itself, the person most likely doesn't have epilepsy but has "symptomatic seizures" or seizures occurring because of a known injury to the brain. Once the infection is stopped the seizures will stop. Another more common infection is "meningitis", infection of the membranes surrounding the brain. Since this infection does not directly involve the brain it might not appear as a possible cause of epilepsy, but has been shown that meningitis can cause epilepsy, which would give rise to the possibility of developing epilepsy partialis continua. These infections are most likely to result in epilepsy when they occur at an early age. | ||
* Problems with brain development can also be a factor. The brain undergoes a complicated process during development in which neurons are born and must travel to the surface of the brain. Here they wind up carefully placed in six distinct layers of the cerebral cortex. Throughout the brain, the placement of these neurons is normally quite precise. If this system doesn't work exactly right, neurons can develop outside their appropriate areas. If this happens then the firing or circuitry of the brain is not right, and an abnormal, epileptic circuit can result. | * Problems with brain development can also be a factor. The brain undergoes a complicated process during development in which neurons are born and must travel to the surface of the brain. Here they wind up carefully placed in six distinct layers of the cerebral cortex. Throughout the brain, the placement of these neurons is normally quite precise. If this system doesn't work exactly right, neurons can develop outside their appropriate areas. If this happens then the firing or circuitry of the brain is not right, and an abnormal, epileptic circuit can result. | ||
Latest revision as of 01:14, 16 May 2023
Clinic
- Kozhevnikov's epilepsia = Epilepsia partialis continua
- It is a special type of recurrent focal (hands and face) motor epileptic seizure that recur every few seconds or minutes for extended periods (days to years)
- It is a disease
Signs and symptoms
- Repetitive focal myoclonus or Jacksonian march.
- Todd's phenomenon = Transient unilateral weakness
Miasms
Causes
Although these seizures are usually due to large, acute brain lesions resulting from strokes in adults and
- Focal cortical inflammatory processes in children (Rasmussen's encephalitis), possibly caused by chronic viral infections, edema, or autoimmune processes.
- Encephalitis due to a virus, bacterium, or (very rarely) fungus. If a seizure happens during the infection itself, the person most likely doesn't have epilepsy but has "symptomatic seizures" or seizures occurring because of a known injury to the brain. Once the infection is stopped the seizures will stop. Another more common infection is "meningitis", infection of the membranes surrounding the brain. Since this infection does not directly involve the brain it might not appear as a possible cause of epilepsy, but has been shown that meningitis can cause epilepsy, which would give rise to the possibility of developing epilepsy partialis continua. These infections are most likely to result in epilepsy when they occur at an early age.
- Problems with brain development can also be a factor. The brain undergoes a complicated process during development in which neurons are born and must travel to the surface of the brain. Here they wind up carefully placed in six distinct layers of the cerebral cortex. Throughout the brain, the placement of these neurons is normally quite precise. If this system doesn't work exactly right, neurons can develop outside their appropriate areas. If this happens then the firing or circuitry of the brain is not right, and an abnormal, epileptic circuit can result.