Diseases of PNS
Common organisms causing sinustitis: ,[LQ]
Ref. Harrison 17th/ed p 205; Scott Brown 7th/ed Vol 2 p 1441; Mohan Bansal p 299
According to Harrison 17th/ed p 205
"Among community-acquired cases, S. pneumoniae and nontypable Haemophilus influenzae are the most common pathogens, accounting for 50-60% of cases. Moraxella catarrhalis causes disease in a signigicant percentage (20%) of children but less often in adults. Other streptococcal species and Staphylococcus aureus cause only a small percentage of cases, although there is increasing concern about community strains of methicillin - resistant S. aureus (MRSA) as an emerging cause:'
According to Nelson 18th/ed,pp 1749,1750
"The bacterial pathogens causing acute bacterial sinusitis in children and adolescents include Streptococcus pneumoniae (= 30%), nontypable Haemophilus influenzae (=20%):'
According to scotts Brown 7th/ed, p 1441
• M/C Organism causing sinusitis in adults is also Streptococcus pneumoniae followed by H. influenza. In children:
• M/C is Streptococcus pneumoniae (30-43%) followed by both H. influenza and Moraxella catarrhalis (20-28% each)