Efficacy of contralateral prophylactic mastectomy in women with a personal and family history of breast cancer

S. K. McDonnell, D. J. Schaid, J. L. Myers, C. S. Grant, J. H. Donohue, J. E. Woods, M. H. Frost, J. L. Johnson, D. L. Sitta, J. M. Slezak, T. B. Crotty, R. B. Jenkins, T. A. Sellers, L. C. Hartmann

Research output: Contribution to journalArticle

218 Scopus citations

Abstract

Purpose: To estimate the efficacy of contralateral prophylactic mastectomy in women with a personal and family history of breast cancer. Patients and Methods: We followed the course of 745 women with a first breast cancer and a family history of breast and/or ovarian cancer who underwent contralateral prophylactic mastectomy at the Mayo Clinic between 1960 and 1993. Family history information and cancer follow-up information were obtained from the medical record, a study-specific questionnaire, and telephone follow-up. Life-tables for contralateral breast cancers, which consider age at first breast cancer, current age, and type of family history, were used to calculate the number of breast cancers expected in our cohort had they not had a prophylactic mastectomy. Results: Of the 745 women in our cohort, 388 were premenopausal (age < 50 years) and 357 were postmenopausal. Eight women developed a contralateral breast cancer. Six events were observed among the premenopausal women, compared with 106.2 predicted, resulting in a risk reduction of 94.4% (95% confidence interval [Cl], 87.7% to 97.9%). For the 357 postmenopausal women, 50.3 contralateral breast cancers were predicted, whereas only two were observed, representing a 96.0% risk reduction (95% Cl, 85.6% to 99.5%). Conclusion: The incidence of contralateral breast cancer seems to be reduced significantly after contralateral prophylactic mastectomy in women with a personal and family history of breast cancer.

Original languageEnglish (US)
Pages (from-to)3938-3943
Number of pages6
JournalJournal of Clinical Oncology
Volume19
Issue number19
DOIs
StatePublished - Oct 1 2001

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Fingerprint Dive into the research topics of 'Efficacy of contralateral prophylactic mastectomy in women with a personal and family history of breast cancer'. Together they form a unique fingerprint.

  • Cite this

    McDonnell, S. K., Schaid, D. J., Myers, J. L., Grant, C. S., Donohue, J. H., Woods, J. E., Frost, M. H., Johnson, J. L., Sitta, D. L., Slezak, J. M., Crotty, T. B., Jenkins, R. B., Sellers, T. A., & Hartmann, L. C. (2001). Efficacy of contralateral prophylactic mastectomy in women with a personal and family history of breast cancer. Journal of Clinical Oncology, 19(19), 3938-3943. https://doi.org/10.1200/JCO.2001.19.19.3938