title: [Clinical analysis of relevant factors causing laryngeal cancer postoperative recurrence].
abstract: OBJECTIVE
  To investigate the clinical relevant factors causing laryngeal cancer postoperative recurrence and analysis the reasons of treatment failure.
  
  
  METHODS
  Totally, 574 cases of laryngeal cancer from 1958 to 1999 treated in ENT department of PLA general hospital were retrospectively reviewed. All the patients were observed for 3 years postoperatively, and finally 56 cases of the recurrence were diagnosed. We analyzed the factors possibly causing the recurrence including age, sex, history, time in hospital, smoke, grade of pathology, combination, tumor stage, transfusion, radiotherapy, operation manners and cervical lymph metastasis node grade.
  
  
  RESULTS
  By statistic analysis, tumor grade (P = 0.0002), operation (P = 0.0017), transfusion (P = 0.0001), radiotherapy (P = 0.0001) and cervical lymphatic metastasis node grade(P = 0.0228) have significant meaning with laryngeal cancer postoperative recurrence.
  
  
  CONCLUSIONS
  Tumor grade, transfusion, radiotherapy, operation and cervical lymph metastasis node grade are main factors which may cause neoplasm postoperative recurring.
authors.affiliation: Department of Otorhinolaryngology, PLA General Hospital, Beijing 100853, China. gr522@sina.com
authors.forename: Rui
authors.initials: R
authors.lastname: Guo
authors.forename: De-liang
authors.initials: DL
authors.lastname: Huang
authors.forename: Hui
authors.initials: H
authors.lastname: Li
authors.forename: Wei-yan
authors.initials: WY
authors.lastname: Yang
authors.forename: Dong-yi
authors.initials: DY
authors.lastname: Han
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002294:Carcinoma, Squamous Cell / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007822:Laryngeal Neoplasms / Q000601:surgery*; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000209:etiology*; D009367:Neoplasm Staging; D011184:Postoperative Period; D011379:Prognosis; D012189:Retrospective Studies; D015996:Survival Rate