Single fiber electromyography in 68 patients with amyotrphy lateral sclerosis / 中华神经科杂志

ABSTRACT

55 ?s ranged from 5 0%～100 0% (mean 60 6%) The ratio of block ranged from 0 0%～90 0% (mean 29 3%) FD ranged from 1 4～4 0 (mean 2 56) There were remarkably increased jitter, block and FD in 51 patients with definite or probable ALS It was also found that there was a negative correlation between extensor digitorum communis strength grades and the ncreased jitter with or without block and FD ( P