Neuraxial blockade

Neuraxial blockade is a form of anesthesia that involves the injection of an anesthetic agent near the spinal cord and the nerves that connect to it. This type of anesthesia is used to block pain signals from specific areas of the body.

Types of Neuraxial Blockade

There are two main types of neuraxial blockade: spinal anesthesia and epidural anesthesia.

• Spinal anesthesia is a type of neuraxial blockade where the anesthetic agent is injected directly into the cerebrospinal fluid that surrounds the spinal cord. This type of anesthesia is often used for surgeries of the lower abdomen, pelvis, rectum, or legs.

• Epidural anesthesia is another type of neuraxial blockade where the anesthetic agent is injected into the epidural space, which is the area between the spinal cord and the outer membrane of the spinal cord (the dura mater). This type of anesthesia is often used for labor and childbirth, as well as for surgeries of the lower abdomen and legs.

Procedure

The procedure for administering a neuraxial blockade involves the use of a thin needle and a small amount of local anesthetic. The anesthetic is injected near the spinal cord and the nerves that connect to it, which blocks the transmission of pain signals from the area of the body that is being operated on.

Risks and Complications

Like all medical procedures, neuraxial blockade carries some risks. These can include headache, nausea, low blood pressure, and, in rare cases, serious complications such as nerve damage or paralysis. However, these risks are generally low, and neuraxial blockade is considered a safe and effective method of anesthesia for many types of surgery.

See Also

• Anesthesia
• Spinal cord
• Nerve
• Pain management