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Radiation-induced conduction block: resolution following anticoagulant therapy
1Neurology Department, Clínica Universitaria de Navarra, Pamplona, Navarra, Spain. 39191ost@comb.es
Muscle & Nerve
|January 7, 2005
Summary
Delayed radiation-induced brachial plexopathy may involve ischemic nerve injury. Anticoagulant treatment with acenocoumarol showed significant clinical improvement and resolution of nerve conduction blocks in one patient.
Area of Science:
- Neurology
- Neuroscience
- Peripheral Nerve Injury
Background:
- Delayed radiation-induced brachial plexopathy is a debilitating condition.
- Neurophysiologic studies are crucial for diagnosing nerve damage.
- Ischemic mechanisms are increasingly implicated in radiation-induced neuropathies.
Observation:
- A patient presented with proximal conduction blocks indicative of brachial plexopathy after radiation therapy.
- The patient was treated with acenocoumarol, an anticoagulant, based on previous reports of its efficacy in radiation-induced neuropathies.
Findings:
- Neurophysiologic studies revealed proximal conduction blocks in the affected brachial plexus.
- Treatment with acenocoumarol for 3 months led to significant clinical improvement.
- The improvement correlated with the resolution of previously identified conduction blocks.
Implications:
- This case suggests that ischemic nerve injury contributes to the pathogenesis of delayed radiation-induced peripheral nerve injuries.
- Anticoagulant therapy may be a potential treatment strategy for such conditions.
- Further research is warranted to explore the role of ischemia and anticoagulation in radiation-induced nerve damage.