Radiation-Induced Lumbosacral Plexopathy: Clinical and Electrophysiological Findings in 3 Cases.
- Author:
Sang Ahm LEE
1
;
Kwang Kuk KIM
;
Myoung Chong LEE
Author Information
1. Department of Neurology, College of Medicine, University of Ulsan, Korea.
- Publication Type:Case Report
- MeSH:
Ankle;
Cervix Uteri;
Female;
Humans;
Knee;
Paraparesis;
Peripheral Nerves;
Radiotherapy
- From:Journal of the Korean Neurological Association
1994;12(1):152-158
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Radiation-induced neuropathy is a rare but well recognized clinical entity although peripheral nerves are considered to be relatively resistant to irradiation. We report three patients with radiation-induced lumbosacral plexopathy, whose characteristic clinical and electrophysiological features can be summarized as follows: 1) 55-58 year old women who were previously treated with radiotherapy for uterine cervix carcinoma: 2) the latent period is to 10 from 13 years: 3)predominantly motor involvement with slowly progressive paraparesis, asymmetrical onset and worse in distal muscle group: 4) painless at onset, with variable degree of sensorv changes: 5)decreased or absent knee and ankle jerks :6)axonal damage in electrophysiologic study: 7)frequent myokymic discharges. Myokymic discharges occur in bursts at regular rate of 0.1 to 8 Hz. In myokymic bursts with more spikes, interburst interval is longer but interspike Interval is shorter.
