title: [Lymphadenectomy in the treatment of malignant ovarian germ cell tumor].
abstract: OBJECTIVE
  To evaluate the impact of lymphadenectomy on the relapse and survival of malignant ovarian germ cell tumor (OGCT).
  
  
  METHODS
  The clinical data of 102 OGCT cases treated in Peking Union Medical College Hospital from June 1980 to June 2003 were analyzed retrospectively. All the data about lymphadenectomy during primary and secondary surgery were collected, and other factors related to prognosis were also collected at the same time. Chi-squared test was applied in the univariate analysis related to relapse of disease. Cox model was applied in multivariate analysis related to relapse and survival of disease.
  
  
  RESULTS
  Pelvic and paraaortic lymph node metastasis was not significantly related to prognosis in primary and secondary treated patients. Lymphadenectomy showed no significant impact on disease relapse and survival. In the primary treatment, International Federation of Gynecology and Obstetrics (FIGO) staging, chemotherapy regimen, residual tumor and lymphadenectomy were the significant factors related to the relapse. After being stratified for the chemotherapy regimen, lymphadenectomy was not significantly related to the relapse in bleomycin +etoposide +cisplatin or cisplatin +vincristine +bleomycin regimen group, and lymphadenectomy could prevent relapse in no chemotherapy or other chemotherapy regimen group. In relapsed patients, only residual tumor was significantly related to survival time after relapse.
  
  
  CONCLUSIONS
  Pelvic lymph node metastasis is not the significant risk factor related to prognosis. Lymphadenectomy may have a beneficial effect on survival, although such effect is not significant. Although lymphadenectomy provides important information for prognosis, they provide little benefit to those patients already requiring chemotherapy based on the original operative findings. Lymphadenectomy should be performed to primary or relapsed patients by an expert surgical team.
authors.affiliation: Department of Obstetrics and Gynecology, PUMC Hospital, CAMS and PUMC, Beijing 100730, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Jin
authors.forename: Ling-ya
authors.initials: LY
authors.lastname: Pan
authors.forename: Hui-fang
authors.initials: HF
authors.lastname: Huang
authors.forename: Keng
authors.initials: K
authors.lastname: Shen
authors.forename: Ming
authors.initials: M
authors.lastname: Wu
authors.forename: Jia-xin
authors.initials: JX
authors.lastname: Yang
authors.forename: Jing-he
authors.initials: JH
authors.lastname: Lang
mesh_terms: D000293:Adolescent; D000328:Adult; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D002648:Child; D003131:Combined Modality Therapy; D005260:Female; D018237:Germinoma / Q000401:mortality / Q000473:pathology / Q000601:surgery* / Q000628:therapy; D006801:Humans; D008197:Lymph Node Excision / Q000379:methods*; D008207:Lymphatic Metastasis; D009364:Neoplasm Recurrence, Local / Q000401:mortality / Q000473:pathology / Q000601:surgery* / Q000628:therapy; D009367:Neoplasm Staging; D010051:Ovarian Neoplasms / Q000401:mortality / Q000473:pathology / Q000601:surgery* / Q000628:therapy; D011379:Prognosis; D012187:Retroperitoneal Space; D012189:Retrospective Studies