Özgül OCAK, Furkan Ertürk URFALI, Bora KORKMAZER, Handan Işın ÖZIŞIK KARAMAN

Osmotic Demyelination Syndrome in A Normonatremic Patient with Chronic Kidney Disease

Osmotic demyelination syndrome (ODS), also known as central pontine myelinolysis, is a neurological disorder characterised by myelin loss in the central pons and other parts of the brain, such as the basal ganglia, lateral geniculate bodies, external and internal capsules and cerebellum. ODS is a demyelinating disorder associated with rapid correction of hyponatraemia. Classically, this is associated with hyponatraemia, but it can also occur in the presence of normonatremia. Changes in osmolality are found to be responsible in the pathogenesis of the lesions. Rarely, pontine myelinosis with delirium was also described in normonatremic patients. We report the clinical and radiological findings of a normonatremic 45-year-old female patient with chronic kidney disease, who experienced central pontine myelinolysis. This report aims to show that pontine myelinolysis may also occur in normonatremic circumstances, and early, rapid management of the disorder is important to prevent permanent damage.

Kronik Böbrek Yetmezliğine Bağlı Osmotik Demiyelinizasyon Sendromlu Normonatremik Bir Olgu

Santral pontin miyelinolizis olarak da bilinen osmotik demiyelinizasyon sendromu (ODS) pons ve beynin bazal gangliyon, lateral genikulat cisimler, eksternal ve internal kapsül ve serebellumda miyelin kaybı ile giden nörolojik bir hastalıktır. ODS hiponatreminin hızlı düzeltilmesi ile birlikte gelişen bir demiyelinizasyon hastalığıdır. Klasik olarak hiponatremi ile ilişkilendirilse de, normonatremi varlığında da görülebilir. Lezyonların patogenezinde ozmolalitedeki değişiklikler sorumlu tutulmuştur. Hastalarda normal sodyum seviyelerinde deliryum kliniği ile birlikte pontin miyelinozis nadiren de olsa tanımlanmıştır. Deliryum kliniği ile acil servise başvuran, kronik böbrek yetmezliği ile birlikte normonatremik santral pontin myelinozisli, 45 yaşındaki kadın hastanın klinik ve radyolojik bulgularını sunduk. Olgunun sunulmasındaki amaç, hasta normonatremik bile olsa pontin miyelinozis gelişebileceğine dikkat çekerek; kalıcı hasar gelişmeden erken tedavi başlanmasının sekelli iyileşmeyi engelleyeceğini vurgulamaktı.

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