急性小脑性共济失调(Acute cerebeuar ataxia)可见于任何年龄,但大多发病于小儿期.是一组以急性平衡和共济障碍、语言失调、震颤等小脑损害为主要表现的临床综合征.现就我院近年来收治的19例报告如下.1 临床资料1.1 性别与年龄:本组19例中男13例,女6例.年龄9个月～14岁,1～3岁年龄组居多(10例).1.2 临床特点;(1)前驱症状:本组12例有不同表现的前驱症状,其中发热及上呼吸道感染10例(其前驱期3～7天5例,8～19天2例,20～30天3例,平均12.6天).其它较少见的前驱症状尚有腹泻、腮腺肿大及四肢肌痛等.(2)发疹性疾病与疫苗接种史:本组有发病前1个月乙脑疫苗接种史1例,发病前半月水痘病史1例.(3)首发症状:行走、坐立不稳或不能11例,头部或肢体震颤4例,发热3例,双下肢无力2例,嗜睡、头晕、频吐、语言不清及抽搐等各1例.(4)主要临床症状和体征:①平衡障碍和共济失调:全组病例均有不同程度的平衡及共济障碍,以躯干的平衡障碍为突出如站立或坐位摇摆或不能自行站、坐,走路不稳呈酒醉样,或完全不能行走;竖头困难,抬头时常可左右摆动或呈垂头状等等.肢体共济失调为持物不稳,意向性动作时摆动不准、 Acute cerebellar ataxia can be seen at any age, but most often in infancy, is a group of clinical syndromes characterized primarily by cerebellar lesions such as acute balance and ataxia, speech disorders, and tremor 19 cases admitted to our hospital in recent years reported as follows.1 Clinical data 1.1 Sex and age: The group of 19 patients, 13 males and 6 females.Ages 9 months to 14 years old, mostly in the age group of 1 to 3 (10 Cases) .1.2 clinical features; (1) prodromal symptoms: The group of 12 patients with different manifestations of prodromal symptoms, including fever and upper respiratory tract infection in 10 cases (3 to 7 days in the precursor of 5 cases, 8 to 19 days in 2 cases, 20 to 30 days in 3 cases, an average of 12.6 days.) There are other less common prodromal symptoms of diarrhea, parotid gland swelling and limb muscle pain, etc. (2) eruption disease and vaccination history: the group before onset 1 1 case of Japanese encephalitis vaccination, 1 case of varicella in the first half of the morbidity. (3) The first symptom: walking, unstable position or not in 11 cases, head or limb tremor in 4 cases, fever in 3 cases, weakness in both lower extremities 2 cases, lethargy, dizziness, frequent vomiting, unclear language and convulsions, etc. (1) Main clinical symptoms and signs: ①balanced disorder and ataxia: all cases All have varying degrees of balance and disability relief, with trunk balance disorders as prominent standing or sitting sway or unable to stand on their own, sitting, walk unsteady was drunk, or can not walk; head difficult, often can be looked up Left or right swing or bow-shaped, etc. limb ataxia for the holding instability, the wording of intentional movements are not allowed to swing,