title: [Nasal anatomic abnormalities and bacterial infection in chronic rhino sinusitis].
abstract: OBJECTIVE
  To study the relationship between nasal anatomic abnormalities and the bacteria infection status of maxillary sinus.
  
  
  METHODS
  The anatomic abnormalities of 115 cases of maxillary sinuses were detected with the CT images and confirmed with chronic infection, which were divided into two groups: high anatomic abnormality group and low anatomic abnormality group. The sinusal contents were sent to bacteria culture, compare the bacteria infection rate and the distribution of bacteria between the two groups.
  
  
  RESULTS
  The bacteria positive rate of the high anatomic abnormality group and low anatomic abnormality group was 90.32% and 56.60% (P < 0.01) respectively. The contribution of gram-positive bacteria and gram-negative bacteria are 47.76% and 52.24% in high anatomic abnormality group, 62.16% and 37.84% in low anatomic abnormality group.
  
  
  CONCLUSIONS
  Nasal anatomic abnormalities can improve the bacteria infectious rate of maxillary sinuses. High anatomic abnormality may more induces gram-negative bacteria infections,while low anatomic abnormality may more induces gram-positive bacteria infections.
authors.affiliation: Department of Otolaryngology,Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China.
authors.forename: Xinjun
authors.initials: X
authors.lastname: Meng
authors.forename: Changping
authors.initials: C
authors.lastname: Cai
authors.forename: Yuxing
authors.initials: Y
authors.lastname: Ni
authors.forename: Shili
authors.initials: S
authors.lastname: Wang
authors.forename: Jingyong
authors.initials: J
authors.lastname: Sun
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001424:Bacterial Infections / Q000209:etiology*; D002908:Chronic Disease; D006801:Humans; D008875:Middle Aged; D009666:Nose / Q000002:abnormalities*; D012852:Sinusitis / Q000382:microbiology*; D055815:Young Adult