The epidural space is the area between the dura mater (a membrane) and the vertebral wall, containing fat and small blood vessels. The space is located just outside the dural sac which surrounds the nerve roots and is filled with cerebrospinal fluid.
Where does an epidural go anatomy?
Epidural anesthesia involves the insertion of a hollow needle and a small, flexible catheter into the space between the spinal column and outer membrane of the spinal cord (epidural space) in the middle or lower back. The area where the needle will be inserted is numbed with a local anesthetic.
How does an epidural work anatomy?
Anatomy. An epidural is injected into the epidural space, inside the bony spinal canal but just outside the dura. In contact with the inner surface of the dura is another membrane called the arachnoid mater, which contains the cerebrospinal fluid.
What is the process of an epidural?
A needle is used to insert a fine plastic tube called an epidural catheter into your back (spine) near the nerves that carry pain messages to your brain. The needle is then removed, leaving just the catheter in your spine. You may feel mild discomfort when the epidural needle is positioned and the catheter is inserted.
What is the anatomy of the spinal cord?
The spinal cord is a cylindrical structure of nervous tissue composed of white and gray matter, is uniformly organized and is divided into four regions: cervical (C), thoracic (T), lumbar (L) and sacral (S), (Figure 3.1), each of which is comprised of several segments.
What are the complications of epidural Anaesthesia?
Side effects Epidural
- Low blood pressure. It’s normal for your blood pressure to fall a little when you have an epidural.
- Loss of bladder control.
- Itchy skin.
- Feeling sick.
- Inadequate pain relief.
- Headache.
- Slow breathing.
- Temporary nerve damage.
What level does epidural go in?
Epidural anesthesia can be performed at any level of the vertebral column, and the choice of placement depends on the desired anesthetic level. In contrast, spinal anesthesia is usually performed below L2 to avoid injury of the spinal cord.
What are side effects of epidural?
Does epidural hurt birth?
With an epidural, you might be able to feel contractions — they just won’t hurt — and you’ll be able to push effectively. There is some evidence that epidurals can speed the first stage of labor by allowing the mother to relax.
What are the 3 main parts of the spinal cord?
The spinal cord comprises three parts: the cervical (neck), thoracic (chest), and lumbar (lower back) regions. Three layers of tissue protect the spinal cord: the dura mater, arachnoid mater, and pia mater.
What does S1 and S2 nerve control?
The sacral spine consists of five segments, S1 – S5, that together affect nerve communication to the lower portion of the body. S1 affects the hips and groin area. S2 affects the back of the thighs. S3 affects the medial buttock area.
