The bacteriological characteristics of chronic maxillary sinusitis have been widely studied with varying results.
Recently, the author performed a study on aerobic and anaerobic bacteria isolated from antral secretion and mucosa of 51 maxillary sinuses, employing an intraoperative technique for sample collection.
The isolated bacteria were compared to nature of secretion, histopathology of mucosa and other findings such as radiology of sinus and duration of illness.
The obtained results are as follows;
1. In secretion of sinuses, aerobes were isolated in 52.9% (14 species; 27 strains) and anaerobes in 25.9% (4 species; 13 strains).
In mucosa, aerobes were isolated in 31.4%(8 species; 16 strains) and anaerobes in 13.7% (4 species; 7 strains).
2. The most frequently isolated bacteria were Staphylococcus aureus and K. pneumonia in aerobes, and Peptostreptococcus in anaerobes.
3. Among the 20 cases in which bacteria were isolated from both secretion and mucosa, Staphylococci were the most common in aerobes, Peptostreptococci were the most common in anaerobes.
4. In nature of each secretion, the rate of bacterial isolation was relatively higher in purulent, large amount and foul odour secretions.
5. There seems to be no relationship between bacterial findings and histopathological types of mucosa.
6. In radiologic findings of antrum, the rate of bacterial isolation was high in more cloud
density in X-ray, but no specific relations were found in each isolated bacteria.
7. There was increasing tendency of bacterial isolation rate. when the duration of illness was longer.
8. In sensitivity to antibiotics, cephalothin was the most sensitive in Gram(+) bacteria, amikacin was the most sensitive in Gram() bacteria. In general, the sensitivity to antibiotics was high in Gram() bacteria compared to Gram(+) bacteria.
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