G37: Other demyelinating diseases of central nervous system

G37.2: Central pontine myelinolysis

The brain stem is part of the brain. The brain stem is where breathing and heart rate are regulated.

There can be various reasons for nerve tissue in the brain stem being damaged. For example, the substances dissolved in the blood can affect the tissue. One of the substances dissolved in the blood is sodium. The nerve tissue in your brain stem was damaged by a sudden increase in the sodium level in your blood. This can happen if you have medical treatment for low sodium levels. If the amount of sodium in the blood increases very quickly in the process, this change can damage the nerve tissue.

Damage to the nerve tissue in the brain stem can cause many different symptoms. For example, you can become confused or drowsy. You may also lose consciousness. It may also result in various mobility disorders. You may no longer be able to move your eyes properly, for example. You can also have problems speaking or swallowing. You may also no longer be able to move your arms and legs properly.