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KMID : 1148420190020010035
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Journal of Neurointensive Care
2019 Volume.2 No. 1 p.35 ~ p.38
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Central Pontine Myelinolysis After Non-Aneurysmal Perimesencephalic Subarachnoid Hemorrhage: Case Report and Review of the Literature
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You Soon-Tae
Han Jai-Hyuck
Kim Young-Gyu
Park Young-Seok
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Abstract
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Central pontine myelinolysis (CPM) is one of the encephalopathy that results from extreme fluctuations in serum sodium concentration and plasma osmolality. CPM after non aneurysmal perimesencephalic subarachnoid hemorrhage (NPSAH) is very rare. A 53-year-old female patient aggravated her instabilty 3 weeks after treatment of after NPSAH. Brain CT showed a prominent low-density lesion in the central pons. Vasospasm, pontine infarct, multiple sclerosis must be excluded after subarachnoid hemorrhage. Her brain magnetic resonance imaging (MRI) of the brainstem revealed CPM. The peripheral fiber sparing, central trident appearance was observed. Peripheral fiber sparing is more prominent, but central trident is disappearing at long-term follow-up MRI. CPM can develop even after NPSAH as well as aneurysmal subarachnoid hemorrhage. Trident pattern in pons area and peripheral fiber sparing is differential diagnosis with vasospasm, cerebral infarct and multiple sclerosis after NPSAH.
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KEYWORD
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Subarachnoid hemorrhage, Hyponatremia, Central pontine demyelination, Demyelination
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