Onset and spreading patterns of lower motor neuron involvements predict survival in sporadic amyotrophic lateral sclerosis
Onset and spreading patterns of lower motor neuron involvements predict survival in sporadic amyotrophic lateral sclerosis
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DOI:
10.1136/jnnp-2011-300141
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发表时间:
2011-11-01
影响因子:
11
通讯作者:
Hanafusa, Toshiaki
中科院分区:
文献类型:
--
作者:
Fujimura-Kiyono, Chieko;Kimura, Fumiharu;Hanafusa, Toshiaki
Objective To define patterns of spread through the order of lower motor neuron involvement (first, second or third order), relationships between interval or sites of affected areas from onset to involvement of a second region, and prognosis, including 5 year survival, normal preservation of motor function at onset of respiratory symptoms and cumulative occurrence of each region and direction of spread.Method 150 patients with sporadic amyotrophic lateral sclerosis (ALS) underwent follow-up at 3 month intervals until the appearance of respiratory symptoms. Symptom appearances were determined using the revised version of the ALS Functional Rating Scale.Result Median survival with combined type onset (two regions simultaneously) was shorter (18 months) than with bulbar onset (26 months, p=0.01). The interval from onset to involvement of the second region correlated significantly with survival, independent of particular combinations. 5 year survival rate was 21% for lower limb onset, 18% for upper limb onset and 16% for bulbar onset. No patient with a rapid spread pattern (two regions within 3 months from onset) survived >5 years. Early manifestations of bulbar symptoms within 1 year were associated with worse survival (p