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In children, the most common cause is a stroke of the ventral pons. [9]Unlike persistent vegetative state, in which the upper portions of the brain are damaged and the lower portions are spared, locked-in syndrome is essentially the opposite, caused by damage to specific portions of the lower brain and brainstem, with no damage to the upper brain.
One of the unique characteristics of AHC is that hemiplegic attacks, as well as other symptoms which may co-occur with hemiplegia, cease immediately upon sleep. During strong attacks, the symptoms may reoccur upon waking. [4] [6] Hemiplegic attacks can occur suddenly or gradually, and the severity of an attack can vary over its duration. [6]
The American Brain Foundation estimates that about 30% of people will still experience some weakness after three years from their initial diagnosis, and 15% have long-term weakness.
During hypoPP attacks, the serum potassium concentrations can drop to less than 3 mM. Furthermore, hypoPP attacks are considerably longer lasting than hyperPP. As exercise is a trigger for periodic paralysis attacks, recently there is more research going into the physiological changes that accompany exercise including changes in blood pH. [3]
Second-impact syndrome (SIS) occurs when the brain swells rapidly, and catastrophically, after a person has a second concussion before symptoms from an earlier one have subsided. This second blow may occur minutes, days, or weeks after an initial concussion, [1] and even the mildest grade of concussion can lead to second impact syndrome. [2]
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People with SCI get divorced more often than the rest of the population, [103] and marriages that took place before the injury fail more often than those that took place after (33% vs. 21%). [133] People married before the injury report less happy marriages and worse sexual adjustment than those married after, possibly indicating that spouses ...
More modern editions simply refer to a man who is paralysed. Although the term has historically been associated with paralysis generally, "is now almost always used in connection to the word cerebral—meaning the brain". [1] Specific kinds of palsy include: Bell's palsy, partial facial paralysis; Bulbar palsy, impairment of cranial nerves