Wisconsin River Orthopaedic Institute - Health Library
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Welcome to our health education library. The information shared below is provided to you as an educational and informational source only and is not intended to replace a medical examination or consultation, or medical advice given to you by a physician or medical professional.

Sympathetic Nerve BlockBloqueo de los nervios simp¡ticos

Sympathetic Nerve Block

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A sympathetic nerve block helps your doctor find the cause of the burning, pain, or tingling in your arms and hands or legs and feet. During the test, medication is injected near your spine. This "blocks" the sympathetic nerves in that region. If these nerves are causing your problem, the injection will relieve your symptoms for a while.

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What Are the Sympathetic Nerves?

The sympathetic nervous system is a network of nerves throughout your body. The nerves branch from your spine. They control some body functions, such as the closing of blood vessels. A problem with these nerves can affect blood flow. Symptoms are often felt in the hands or feet. They may hurt, burn, feel cold, or be tender to the touch.

Sympathetic Ganglions

The sympathetic nervous system is controlled by bunches of nerves called ganglions. One large ganglion, called the stellate ganglion, helps control nerves in the upper body. In the lower body, nerves are controlled by several ganglions that make up the sympathetic chain.

Risks and Complications

Risks and complications are rare, but can include:

  • Bleeding or fluid leakage in the spinal cord

  • Puncture of a blood vessel

  • Infection

  • Lung puncture (pneumothorax)

Date Last Reviewed: 2004-08-02T00:00:00-06:00

Date Last Modified: 2002-07-09T00:00:00-06:00

Contact Wisconsin River Orthopaedic Institute at 715.424.1881 for your orthopaedic needs. For your convenience, you can fill out our online Request an Appointment form to book your consultation.

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For your orthopedic needs, contact Wisconsin River Orthopaedic Institute at 715.424.1881 . For your convenience, you can fill out our online Request an Appointment form to book your consultation. We...
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