title: [Effect of microwave coagulation and surgery to treat the cancer of the floor of mouth].
abstract: OBJECTIVE
  The aim of this article was to clarify the value of microwave coagulation to treat the cancer of the floor of mouth by comparing the effect of microwave and surgery.
  
  
  METHODS
  Retrospectively 87 cases of cancer of the floor of mouth who were treated by microwave coagulation and traditional surgery are analysed and the survival curve, the recurrent rate of the primary and secondary site, the oral functions, the appearance and the complications are compared.
  
  
  RESULTS
  1. Either in the early patients (T1 + T2) or in the advanced cases (T3 + T4), the differences of survival curve between the two groups were insignificant (P = 0.8247, P = 0.803 respectively); 2. The recurrent rate of the primary and secondary site were insignificant either (P = 0.988, P = 0.759 respectively); 3. There were more patients with a satisfied mouth function in the microwave coagulation group than that of in the surgery group, on the contrary, the cases with a worst function were few in the former(P = 0.000, P = 0.001 respectively); 4. The appearance was more satisfactory in the microwave group(chi 2 = 23.077, P = 0.000).
  
  
  CONCLUSIONS
  To treat the cancer of the floor of mouth, microwave coagulation, as the traditional surgery, had good effects such as the same survival rate, the complication rate and local or region control rate, but the mouth function and the appearance was better than the surgery group. The microwave coagulation can be safely carried out in the practice.
authors.affiliation: Department of Head and Neck Surgery, Cancer Center of Sun Yat-sen University of Medical Sciences, Guangzhou 510060, China. tjkzl@gzsums.edu.cn
authors.forename: Zongyuan
authors.initials: Z
authors.lastname: Zeng
authors.forename: Quan
authors.initials: Q
authors.lastname: Zhang
authors.forename: Zhuming
authors.initials: Z
authors.lastname: Guo
authors.forename: Guangpu
authors.initials: G
authors.lastname: Xu
authors.forename: Fujin
authors.initials: F
authors.lastname: Chen
authors.forename: Maowen
authors.initials: M
authors.lastname: Wei
authors.forename: Ankui
authors.initials: A
authors.lastname: Yang
authors.forename: Liangping
authors.initials: L
authors.lastname: Xia
mesh_terms: D000328:Adult; D000368:Aged; D004564:Electrocoagulation; D005260:Female; D006801:Humans; D008297:Male; D008872:Microwaves / Q000627:therapeutic use*; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000601:surgery / Q000628:therapy*; D009364:Neoplasm Recurrence, Local; D011379:Prognosis; D012189:Retrospective Studies; D016019:Survival Analysis