What is Subdural Drain

Subdural drain is a thin, soft, flexible tube (catheter) that is inserted through an opening that is made in the skull (craniotomy).

The spinal cord and the brain (central nervous system) are surrounded by clear fluid (cerebrospinal fluid, CSF), which nourishes and protects the central nervous system. A thick membrane (dura) keeps CSF in place.

A subdural drain is placed between the brain and the dura, in the space that contains CSF (subdural space). To put in a subdural drain, one or more craniotomy holes (burr holes) may be needed.

Why is a subdural drain needed?

A subdural drain may be put in as part of surgery to relieve pressure or drain blood from the subdural space (subdural hematoma). This drain helps to prevent a hematoma from forming again after surgery.

How long will the subdural drain be in place?

A subdural drain is placed in the hospital and will likely be in for several days. You may have repeated imaging studies of your brain to help determine when the drain can be removed.

What are the risks of having a subdural drain?

Possible problems include:

• Infection of the central nervous system (meningitis).
• Headache, nausea, or vomiting.
• Seizures.
• Weakness or partial or complete loss of movement or feeling (paralysis).
• Confusion.
• Air in the brain (pneumocephalus).
• Bleeding or a CSF leak.

What should I know about activity while the drain is in place?

Depending on your condition, your activity may be limited to the bed or chair.

Take actions to prevent falls when you are in the hospital. For example:

• Wear nonslip footwear.
• Remove all clutter from the floor and the sides of the bed.
• Keep the nurse call button where you can reach it.
• Ask for help before you move around.
• Have someone stay in the hospital with you.

Contact a health care provider if:

• You need to change your position in bed or use the bathroom.
• You have:
  • Pain, weakness, tingling, or numbness.
  • Chills or a fever.
  • Seizure.
  • A stiff neck.
  • Confusion.
  • Dizziness.
  • Nausea or vomiting.
  • Fluid leaking from your incisions.

Summary

• A subdural drain may be put in as part of surgery to relieve pressure or drain blood from the space between the brain and a thick membrane (dura). This space contains fluid that nourishes and protects the brain and spinal cord (cerebrospinal fluid, CSF).
• While the drain is in place, your activity may be limited, and you will need assistance to move around.