BACKGROUND: @entity1244 is a disease with significant health problems. Diagnosis of @entity1244 is clinical. The golden standard for detection of microorganisms that cause @entity1244 is the culture of sinus drainage discharge. OBJECTIVES: Due to the high prevalence of @entity1244 in Iran, especially in Mazandaran province, in this study, bacteriological survey of @entity1 with chronic @entity1244 were done in order to help physicians in choosing better antibiotics for the empiric therapy of @entity1244 . METHODS: This was a descriptive study. The population of the study consisted of 100 @entity1 with chronic @entity1244 caused by bacteria admitted to the Avicenna teaching hospital. Sampling for bacterial culture was performed by the endoscopy method from middle meatus (a curved anteroposterior passage in each nasal cavity that is situated below the middle nasal concha and extends along the entire superior border of the inferior nasal concha) and the opening of the maxillary sinus. Also sampling of nasal cavity was performed to determine the microbial flora. Identification of the bacteria causing chronic @entity1244 was performed according to the standard microbiological procedures. Antimicrobial susceptibility testing method, the disk diffusion (Kirby-Bauer) was performed according to the CLSI (Clinical and Laboratory Standards Institute) standards. Data were analyzed using SPSS17 software. Also Fisher exact test and descriptive statistics were used to analyze the data. RESULTS: Among the 100 evaluated @entity1 , 58% were male. The average age was 34.2  1.1. The most common complaint of @entity1 were nasal congestion and post-nasal drip. The most common bacteria found in the nasopharynx were Gram-positive bacillus, coagulase negative @entity794 and @entity794 with rates of 20%, 16% and 15% respectively. Bacteria isolated from opening sinus were Gram-positive bacillus 24%, @entity9238 10%, coagulase negative @entity794 18% and @entity794 19%. CONCLUSIONS: Antibiotic prescription is often empiric in treatment of @entity1244 . In our study resistance to some antibiotics such as @entity114 subgroups that are used in treatment of chronic @entity1244 was high. Due to the fact that the etiology of chronic @entity1244 is not clearly understood, the frequency of all the common causative agents of this disease must be determined.

Frequency of Bacterial Agents Isolated From XXXX With Chronic Sinusitis in Northern Iran.

@entity1244 :: ('MESH:D012852', 'Disease') :: ['sinusitis', 'Sinusitis'] @entity1 :: ('9606', 'Species') :: ['patients'] @entity9238 :: ('548', 'Species') :: ['Enterobacter aerogenes'] @entity114 :: ('MESH:D010406', 'Chemical') :: ['penicillin'] @entity794 :: ('1280', 'Species') :: ['Staphylococcus aureus', 'Staphylococcus']
@entity1 :: (9606,Species) :: ['Patients']
