BrainAbscess2-27.doc

BrainAbscess2-27.doc - Learning Issue: Brain Abscess Name:...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Learning Issue: Brain Abscess Name: Jacey Grant Definition Brain abscess is a focal infection which begins when organisms are inoculated into the brain parenchyma, usually from a site distant from the CNS Etiology Predominant organisms: Staphylococcus aureus Aerobic, anaerobic and microaerophilic streptococci Bacteroides, Prevotella, and Fuscobaterium species Enterobacteriaceae organisms ( Klebsiella pneumonia, E coli, and proteus species) Pseudomonas species Other anaerobes Risk Factors/ Epidemiology Rare is the general population Immunocompromised patients have increasing incidence of brain abscess Mortality: less than 5-15%; if ruptured then 80% Sex: more common in males than females Age: occur more frequently in the first 4 decades of life Pathophys Routes of spread: Contiguous suppurative spread (Direct extension) (45-50%): Infections stemming from the sinuses, teeth, middle ear, or mastoid may gain access to the venous drainage of the brain
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

BrainAbscess2-27.doc - Learning Issue: Brain Abscess Name:...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online