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Sympathetic Nerve Blocks:: In Search of a Role

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Critical review highlights challenges in utilizing sympathetic nerve blocks for neuropathic pain disorders, indicating further research is needed.

Sympathetic blocks show questionable efficacy in diagnosing pain disorders, complicating treatment directions.
Review of literature reveals limited support for sympathetic blocks in managing postherpetic neuralgia and acute herpes zoster pain.
Permanent sympathetic block techniques can offer significant long-term pain and blood flow improvements in patients with peripheral vascular disease.
Changing understandings of pain disorders have led to new strategies that require further evidence to validate sympathetic block applications.

R Boas (1998) studied this question.

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Critical review highlights challenges in utilizing sympathetic nerve blocks for neuropathic pain disorders, indicating further research is needed.