title: Changes in the treatment of early breast cancer at the Mayo Clinic: 1988-1992.
abstract: OBJECTIVE
  To investigate the temporal patterns in the surgical management of early (stages 0-2) breast cancer at Mayo Clinic between 1988 and 1992.
  
  
  METHODS
  Retrospective study.
  
  
  METHODS
  Academic medical center, United States.
  
  
  METHODS
  2551 patients with stage 0-2 primary breast cancer who underwent surgical treatment.
  
  
  METHODS
  Change in the number of patients who underwent breast conserving surgery during the five year period.
  
  
  RESULTS
  The overall number of patients who underwent breast conserving surgery ranged from 73/498 (15%) in 1988 to 187/547 (34%) in 1992. When the patients who were ineligible to undergo breast conservation were subtracted from those who underwent mastectomy (leaving only those who chose mastectomy), the proportion nearly reached 50% in 1991, and breast conservation procedures exceeded mastectomies in 1992.
  
  
  CONCLUSIONS
  The majority of women primarily treated for early breast cancer during the five year period 1988-1992 undergo mastectomy. The reasons appear to be multifactorial, but a significant percentage are not eligible for breast conservation according to our criteria.
authors.affiliation: Department of Surgery, Mayo Clinic, Rochester, MN 55905, USA.
authors.forename: C S
authors.initials: CS
authors.lastname: Grant
mesh_terms: D001943:Breast Neoplasms / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008408:Mastectomy; D015412:Mastectomy, Segmental; D008910:Minnesota; D009367:Neoplasm Staging; D012189:Retrospective Studies