Intracranial hypotension

Depending on the cause of the leak, many cases go away on their own after a few days. Complete bed rest for several days is usually recommended. Drinking increased fluids, especially drinks with caffeine, can help slow or stop the leak and may help with headache pain.

Headache may be treated with pain relievers and fluids. If the headache lasts longer than a week after a lumbar puncture, a procedure may be done to block the hole that may be leaking fluid. This is called a blood patch, because a blood clot can be used to seal the leak. In most cases, this makes symptoms go away. Rarely, surgery is needed to repair a tear in the dura and stop the headache.

Symptoms of infection (fever, chills, change in mental status) that occur after surgery on the brain or spinal cord or a lumbar puncture are a medical emergency and need to be treated with antibiotics.

The outlook is usually good depending on the cause. Most cases heal by themselves with no lasting symptoms.

Complications may occur if the cause is surgery or trauma. Infections after surgery or trauma can lead to meningitis and serious complications, such as swelling of the brain.

Call your health care provider if:

• You have a headache that gets worse when you sit up, especially if you have recently had a head injury, surgery, or childbirth involving epidural anesthesia.
• You have a moderate head injury, and then develop a headache that is worse when you sit up, or you have a thin, clear fluid draining from your nose or ear.

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Cerebrospinal fluid leak

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Review Date: 09/26/2010
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Daniel B. Hoch, PhD, MD, Assistant Professor of Neurology, Harvard Medical School, Department of Neurology, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)