RESUMO
Sinusitis is a major cause of illness in the world, and represents a substantial economic burden. Accurate diagnosis and appropriate antibiotics will optimize the! Chances of achieving and early cure. The main factors in choosing antibiotic therapy are Likely Infecting pathogens, and the pattern of bacterial antibiotic resistance, endoscopically directed middle meatal aspiration culture is increasingly used in this setting; but studies have not convincingly demonstrated the validity of this technique, So this study was undertaken over a 12-month period to identify causing pathogens of chronic sinusitis and their antibiotic susceptibility pattern in Northeast of Iran. Over a 12-month period, a total of 32 samples were taken from 16 patients diagnosed as having chronic bacterial rhinsinusitis. The samples were sent to the laboratory where a pathogen was identified and antibiotic susceptibilities were determined. Most bacteria isolated were aerobic or Facultative bacteria, gram negative rods as Entrobacter spp [18.5%], Klebsiella pneumonia [15.4%], E.Coli [9.23%] and Staphylococcus aureaus [15.4%] although appropriate for anaerobes cultivation were employed, anaerobes were identified in just 3 specimens the predorninant anaerobes isolate was Fusobacterium.. The results of this study cam give practicing physician's vital information about pathogen profiles and susceptilities within our communities and help them in making appropriate treatment choices for their patients with chronic rihinosinusitis