title: [Value of elective neck dissection in patients with clinically stage I squamous cell carcinoma of the tongue].
abstract: OBJECTIVE
  To determine the value of elective neck dissection in patients with clinically stage I (cT1N0M0) squamous cell carcinoma of the tongue.
  
  
  METHODS
  This was a retrospective study of patients with surgical treatment between November 1984 and November 1999. A total of 130 patients were included in the study, all of whom received operation of the primary site, meanwhile, 99 of whom underwent elective neck dissection simultaneously including level I -III or level I -IV neck dissection in 20 patients and level I - V neck dissection in 79 patients. Results Among all these patients, the rate of occult metastasis to the neck were 12. 0%. Local failure rate in patients with only local treatment, level I II, II, III/IV neck dissection and level I - V neck dissection were 25. 8%, 15. 0% and 7. 6% respectively. There were significant difference in regional failure between patients with only local treatment and patients with elective neck dissection (P < 0.05). Also, no significant differences were noted in the survival rate between patients with only local treatment, elective neck dissection (level I -III or level I -IV) and level I -V neck dissection (P > 0.05).
  
  
  CONCLUSIONS
  Elective neck dissection significantly reduced regional control failure but was not able to reduce distant metastasis or increase the overall survival. A prospective randomized study is worthwhile to further evaluate the benefit of elective neck dissection in the treatment of clinically stage I squamous cell carcinoma of the tongue.
authors.affiliation: Department of Head and Neck, Cancer Center, Sun Yat-sen University, Guangzhou 510060, China. liuruntian_513@163.com
authors.forename: Tian-run
authors.initials: TR
authors.lastname: Liu
authors.forename: An-kui
authors.initials: AK
authors.lastname: Yang
authors.forename: Fu-jin
authors.initials: FJ
authors.lastname: Chen
authors.forename: Zong-yuan
authors.initials: ZY
authors.lastname: Zeng
authors.forename: Oiu-li
authors.initials: OL
authors.lastname: Li
authors.forename: Mao-wen
authors.initials: MW
authors.lastname: Wei
authors.forename: Guo-hao
authors.initials: GH
authors.lastname: Wu
authors.forename: Zhu-ming
authors.initials: ZM
authors.lastname: Guo
authors.forename: Quan
authors.initials: Q
authors.lastname: Zhang
authors.forename: Wei-chao
authors.initials: WC
authors.lastname: Chen
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002294:Carcinoma, Squamous Cell / Q000473:pathology / Q000601:surgery*; D017558:Elective Surgical Procedures; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D037981:Neck Dissection; D009367:Neoplasm Staging; D012189:Retrospective Studies; D014062:Tongue Neoplasms / Q000473:pathology / Q000601:surgery*; D016896:Treatment Outcome; D055815:Young Adult