title: [Value of surgical margin in directing the treatment of early laryngeal carcinoma after partial laryngectomy].
abstract: OBJECTIVE
  To investigate the value of surgical margin in directing the treatment of early laryngeal carcinoma after partial laryngectomy.
  
  
  METHODS
  We studied 87 cases of T1N0M0 and T2N0M0 laryngeal carcinoma in which the surgical margins were reserved during partial laryngectomy. The recurrence and survival rates between the positive and negative margin groups were compared; the survival between the positive margin groups with postoperative radiotherapy and negative groups; the survival between groups with and without postoperative radiotherapy in negative margins.
  
  
  RESULTS
  Recurrent rate of the negative group was lower than that of the positive group (5.8% vs 33.3%, chi 2 = 10.64 P = 0.001). The estimated survival was higher in the negative group than in the positive group(P = 0.011), and also in tumor-free time(P = 0.007). The survival of those with positive surgical margin and received postoperative RT was lower than that with negative margins(P = 0.01). In the negative group, the difference in the survival between those with or without postoperative RT was not significant (P = 0.405).
  
  
  CONCLUSIONS
  The prognosis of the positive margin group of the early laryngeal carcinoma was worse than that of the negative group, but postoperative RT can improve it; it is not necessary for the negative group to be treated by postoperative RT.
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: Z
authors.initials: Z
authors.lastname: Zeng
authors.forename: L
authors.initials: L
authors.lastname: Xia
authors.forename: F
authors.initials: F
authors.lastname: Chen
authors.forename: G
authors.initials: G
authors.lastname: Xu
authors.forename: Q
authors.initials: Q
authors.lastname: Zhang
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003131:Combined Modality Therapy; D005260:Female; D006801:Humans; D007822:Laryngeal Neoplasms / Q000473:pathology / Q000532:radiotherapy / Q000601:surgery*; D007825:Laryngectomy / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D018365:Neoplasm, Residual; D011379:Prognosis; D015996:Survival Rate