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Cancer Prevention02:59

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Related Experiment Videos

Pregnancy after breast cancer: population based study.

Angela Ives1, Christobel Saunders, Max Bulsara

  • 1School of Surgery and Pathology (M507), University of Western Australia, Crawley, Western Australia 6009. angela.ives@uwa.edu.au

BMJ (Clinical Research Ed.)
|December 13, 2006
PubMed
Summary

Women who conceived after breast cancer diagnosis showed improved survival rates. Early conception, around six months post-treatment for localized disease, appears safe and does not reduce survival.

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Area of Science:

  • Oncology
  • Reproductive Health
  • Epidemiology

Background:

  • Breast cancer survivors often face decisions regarding future pregnancies.
  • Current guidelines recommend a two-year waiting period before conception after breast cancer diagnosis.
  • Evidence on the safety and impact of early conception is limited.

Purpose of the Study:

  • To identify breast cancer survivors who conceived.
  • To determine pregnancy rates, management, and outcomes.
  • To assess cancer and pregnancy outcomes, and survival post-conception.

Main Methods:

  • Population-based descriptive study in Western Australia (1982-2003).
  • Cases identified via data linkage system and validated by medical records.
  • Included women under 45 diagnosed with breast cancer who subsequently conceived.

Main Results:

  • Subsequent pregnancy was associated with improved overall survival (HR 0.59).
  • Improved survival was significant for those conceiving ≥24 months post-diagnosis (HR 0.48).
  • Early conception (≥6 months post-treatment) showed a non-significant protective effect.

Conclusions:

  • The study challenges the universal two-year waiting recommendation for conception.
  • Early conception (≥6 months post-treatment) may be safe for women with localized breast cancer.
  • Waiting times should be individualized based on treatment and disease status.