What is a lumbar sympathetic nerve block?
The lumbar sympathetic block involves placing a local anesthetic agent near sympathetic nerves which are located near the front of the lumbar spine. Sympathetic nerves are part of the autonomic nervous system responsible for regulating heart rate, blood pressure, sweating, digestion and other body functions. In some instances, the sympathetic nerves are involved in pain transmission.
Indications for lumbar sympathetic nerve block
Some of the conditions where a lumbar sympathetic block may be useful include:
- Complex Regional. Pain Syndrome (also known as Reflex Sympathetic Dystrophy)
- Sympathetically Maintained Pain
- Nerve pain associated with nerve injuries such as following trauma or amputation
- Circulation disorders of the lower extremities
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