İntoksikasyon Dozunda Olmayan Lityum Kullanımına Bağlı Parkinsonizm Tablosu

Lityum bipolar bozuklukta kullanılan tedavi seçeneklerinden biridir. Bipolar hastalık tanısı ile 900 mg/gün lityum kullanan hastada son 6 aydır yürümede ve yutmada güçlük şikayeti mevcuttu. Nörolojik muayenesinde parkinsonizm tablosu tespit edildi. Serum lityum düzeyi terapötik düzeyi üst sınırlarda olan hastada lityum dozu önce azaltıldı ve sonrasında kesildi. Hastanın semptom ve nörolojik muayenesi 2 gün sonra belirgin olarak düzeldi. 15 gün sonra yürümesi normale yakın hale geldi. Biz kronik kullanımda lityum serum düzeyi terapötik düzeyin hafif üzerinde ancak toksik dozda olmayan yüksek doz lityum kullanımına bağlı subakut parkinsonizm tablosu gelişen bir hastayı sunmak istedik.

Parkinsonism Related to Use of Non-Intoxication Dose of Lithium

Lithium is one of the most widely used drugs in the treatment of bipolar disorders. The patient who was on lithium 900 mg/d with the diagnosis of bipolar disorder was admitted with difficulty in walking and swallowing for the past six months. Neurological examination showed clinical manifestations of Parkinsonism. Serum lithium level increased to the upper limits of therapeutic range; therefore, the dose was down-titrated and discontinued. Symptoms and neurological findings significantly improved two days later and nearly completely resolved 15 days later. Herein, we report a case of subacute Parkinsonism related to chronic high-dose, but not toxic dose, lithium treatment.

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