Lima B, Neves G, Nora M
J Neurol Neurosurg Psychiatry. 1987 Mar;50(3):345-8. doi: 10.1136/jnnp.50.3.345.
Twenty one patients with idiopathic Parkinsonism beginning before the age of 40 years were investigated. The mean duration of the disease was 19 years. There was a good and sustained response to levodopa. Only four patients reached stages IV and V (Hoehn and Yahr). Intolerance to levodopa was observed in the more advanced stages of the disease. In the series the familial incidence of Parkinsonism (2 cases) and essential tremor (3 cases) was very low. Thyroid disorder, diabetes mellitus or macrocytic anaemia was not found in any of the cases.
对21例40岁以前发病的特发性帕金森病患者进行了调查。疾病的平均病程为19年。左旋多巴治疗反应良好且持续。只有4例患者达到了IV期和V期(霍恩和雅尔分期)。在疾病的较晚期观察到对左旋多巴不耐受。在该系列中,帕金森病(2例)和特发性震颤(3例)的家族发病率非常低。所有病例均未发现甲状腺疾病、糖尿病或大细胞性贫血。