Subdural empyema is most commonly caused by:
Correct Answer: Streptococcus pneumoniae
Description: Answer is C (Streptococcus pneumoniae): Aerobic and Anaerobic streptococci are the most common aetiological agents for subdural ernphyema. influenzae is the most common causative organism in Children, and not in Adults. Subdural Empyema is a collection of pus in the space between he dura and arachnoid. In most cases a single organism is responsible, but many cultures are sterile because patients are often receiving antimicrobial therapy. The major pathogens include Aerobic and anaerobic Streptococci (about 50%) Staph (about 12-16%) Aerobic gram -ye bacilli (3-10%) Other anaerobes (5%)
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