The pus cultivation and drug sensitive test analysis of chronic suppurative otitis media in 156 cases

Objective:To investigate the distribution of pathogenic bacteria and its drug sensitivity of chronic suppurative otitis media,and guide clinical rational drug use. Methods:The data of the pus cultivation and drug sensitivity test of chronic suppurative otitis media in 156 patients were retrospectively analyzed. Results:One hundred and twenty-seven strains pathogenic bacteria were detected in156 specimens,which included 119 strains of bacteria and 8 strains of fungi. The four leading bacteria were coagulase negative staphylococcus(41 strains,32. 23%),pseudomonas aeruginosa(19 strains,15. 0%),staphylococcus aureus(18 strains,14. 2%) and proteus( 11 cases,8. 7%). Different pathogenic bacteria had different drug sensitivities. Conclusions: The coagulase negative staphylococcus,pseudomonas aeruginosa,staphylococcus aureus and proteus are the major pathogenic bacteria in chronic suppurative otitis media. The reasonable choice of antibiotics should base on the drug sensitive test.