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Sympathetic Nerve Block

Medically reviewed by Last updated on May 6, 2024.

What do I need to know about a sympathetic nerve block?

A sympathetic nerve block is an injection of anesthesia medicine around nerves near your spine. You may need a sympathetic nerve block to locate an area of pain or to relieve nerve pain. It may also be used to control heavy sweating or relieve Raynaud syndrome. Your healthcare provider may recommend a series of nerve blocks if your pain or condition improves after the first.

How do I prepare for a sympathetic nerve block?

What will happen during a sympathetic nerve block?

What should I expect after a sympathetic nerve block?

What are the risks of a sympathetic nerve block?

You may have numbness, weakness, or trouble walking. Your blood pressure may get too high or too low. You may have anxiety, dizziness, or seizures if the anesthesia gets into your blood vessels. You may have bleeding, or a blood clot may form if the needle goes into a blood vessel. The needle may also go into other parts of your body and cause damage. If the needle goes into a nerve, you may feel burning, tingling, prickling, or severe pain.

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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