title: [Evaluation of a self-defined classification of uterine submucous myomas for guiding transcervical hysteroscopic electric resection].
abstract: OBJECTIVE
  To value a new presurgical classification system of submucous myomas for predicting the difficulty and the safety of hysteroscopic myomectomy.
  
  
  METHODS
  The clinical data of 491 patients who underwent hysteroscopic resection of submucous myomas were analyzed. The myomas were classified according to the Classification of the European Society for Gynaecological Endoscopy (ESGE) and our group's new classification, which consists of five parameters. The possibility of total resection of submucous myoma, the operating time and the frequency of any complications were considered.
  
  
  RESULTS
  The ESGE classification showed significant differences between the level 0 and level I or II (both P < 0.01). Hysteroscopic myomectomy was considered incomplete in 9 patients with myomas. The numbers of complete surgeries of level II was significant lower compared to level 0 or level I (P < 0.01). Using our new classification, the differences of both operating times and the numbers of complete surgeries between group B and A was significant (P < 0.01).
  
  
  CONCLUSIONS
  The new classification gives more clues as to the difficulties of hysteroscopic myomectomy than the standard ESGE classification. Although a larger number of patients need to be evaluated by this classification.
authors.affiliation: Department of Gynecology, Women's Hospital School of Medicine Zhejiang University, Hangzhou, Zhejiang 310006, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Xu
authors.forename: Jun
authors.initials: J
authors.lastname: Lin
authors.forename: Xue-Zhen
authors.initials: XZ
authors.lastname: Chen
authors.forename: Xin-Mei
authors.initials: XM
authors.lastname: Zhang
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D015907:Hysteroscopy; D007889:Leiomyoma / Q000145:classification* / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D009092:Mucous Membrane / Q000473:pathology*; D009367:Neoplasm Staging; D015203:Reproducibility of Results; D012189:Retrospective Studies; D014594:Uterine Neoplasms / Q000145:classification* / Q000473:pathology / Q000601:surgery