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Central nervous system


Definition:

Staphylococcal meningitis is a bacterial infection of the membranes covering the brain and spinal cord (meninges).

See also:



Alternative Names:

Staphylococcal meningitis



Causes, incidence, and risk factors:

Meningitis is caused by Staphylococcus bacteria. When it is caused by Staphylococcus aureus or Staphylococcus epidermidis bacteria, it usually develops as a complication of a surgical procedure, or as an infection spread by the blood from another site.

Risk factors include:

  • Infections of heart valves
  • Past infection of the brain
  • Past meningitis associated with spinal fluid shunts
  • Recent brain surgery


Symptoms:
  • Change in mental status (confusion)
  • Fever
  • Nausea and vomiting
  • Rash
  • Sensitivity to light (photophobia )
  • Severe headache
  • Stiff neck


Signs and tests:

A physical exam may show:

For any patient with meningitis, it is important to perform a lumbar puncture ("spinal tap "), in which a sample of spinal fluid (known as cerebrospinal fluid, or CSF) is taken and sent to the lab for testing.

Tests may include:



Treatment:

Antibiotic therapy should be started as soon as possible to decrease the chances of serious illness or death. Often, treatment will include a search for, and removal of, possible sources of bacteria in the body. These include shunts or artificial heart valves.



Support Groups:



Expectations (prognosis):

This form of infection can be very serious in people with suppressed immune systems. It often leads to death. Recognizing the symptoms of meningitis is very important to prevent serious illness.

Staphylococcal meningitis often improves more quickly, with better results, if the source of the infection is removed. The source may include shunts, hardware in joints, or artificial heart valves.



Complications:

Patients may develop a brain infection or staph infections at other parts of the body. Serious bleeding and shock may develop.



Calling your health care provider:

Go to the emergency room or call the local emergency number (such as 911) if you have symptoms of meningitis. This disease can be life-threatening.



Prevention:

In high-risk people, taking preventive antibiotics before diagnostic or surgical procedures may help reduce the risk. Discuss this with your doctor.



References:

Swartz MN. Meningitis: bacterial, viral, and other. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007: chap 437.




Review Date: 9/28/2008
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; Jatin M. Vyas, PhD, MD, Instructor in Medicine, Harvard Medical School, Assistant in Medicine, Division of Infectious Disease, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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789 Central Avenue, Dover, NH 03820
Phone: (603) 742-5252
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