title: [Postoperative infection bacteria and drug resistance in patients with oral and maxillofacial tumors].
abstract: OBJECTIVE
  To evaluate postoperative infection patterns of patients suffering from oral and maxillofacial neoplasms. The risk factors giving rise to postoperative infections were analyzed. Infection bacteria and antibiotic resistance were investigated.
  
  
  METHODS
  Fifty-three cases suffering from postoperative infection were selected during 2007.12-2012.12 at the Department of Oral & Maxillofacial Surgery, West China College of Stomatology. The relationship between infections and factors including patients' sex, age, type of tumor, operation time and methods were evaluated with Excel and SPSS 21.0 software package, putting emphasis on infection bacteria and drug-resistance.
  
  
  RESULTS
  Postoperative infection mainly occurred in patients with oral malignant tumors. Operation types and time had important influence on postoperative infection. The infection bacteria included gram-positive (59.5%) and gram-negative ones (40.5%). Streptococcus pyogenes accounted for the majority of G- bacteria, which was very sensitive to β-lactam antibiotics. Pseudomonas aeruginosa were multi-drug resistant G- bacteria, which brought difficulties to the treatment of the infection.
  
  
  CONCLUSIONS
  Integrant bacterial culture and drug sensitivity test should be performed to choose appropriate antibiotics, and monitor multi-drug resistant bacteria, so as to improve the control rates of postoperative infection.
authors.affiliation: State Key Laboratory of Oral Diseases; Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University. Chengdu 610041, Sichuan Province, China.E-mail:yangwenbinkq@163.com.
authors.forename: Wen-bin
authors.initials: WB
authors.lastname: Yang
authors.forename: Chun-jie
authors.initials: CJ
authors.lastname: Li
authors.forename: Long-jiang
authors.initials: LJ
authors.lastname: Li
authors.forename: Su-rui
authors.initials: SR
authors.lastname: Sheng
authors.forename: Shu-qun
authors.initials: SQ
authors.lastname: Qi
authors.forename: Jian
authors.initials: J
authors.lastname: Pan
mesh_terms: D000900:Anti-Bacterial Agents; D001419:Bacteria; D001424:Bacterial Infections / Q000453:epidemiology*; D002681:China / Q000453:epidemiology; D004351:Drug Resistance; D024881:Drug Resistance, Bacterial; D006801:Humans; D009062:Mouth Neoplasms / Q000601:surgery*; D011183:Postoperative Complications / Q000453:epidemiology / Q000382:microbiology*; D011550:Pseudomonas aeruginosa
chemical_list: D000900:Anti-Bacterial Agents