[Breast conservation: safe for early breast cancer]

Area of Science:

• Oncology
• Radiation Oncology
• Surgical Oncology

Context:

• Breast conservation therapy (BCT) is a standard treatment for primary breast cancer.
• Optimizing BCT requires balancing local control, survival, and cosmetic outcomes.
• Adjuvant therapies, including chemotherapy, hormone therapy, and radiotherapy, play a crucial role in BCT.

Purpose:

• To evaluate the long-term outcomes of breast conservation in a large cohort of women with primary breast cancer.
• To assess the efficacy of adjuvant therapies, particularly radiotherapy, in achieving local control and survival.
• To analyze factors influencing recurrence and survival, and to report on cosmetic results post-treatment.

Summary:

• A study of 581 women treated with breast conservation between 1981-1993 showed high 5-year survival rates (97% Stage I, 88% Stage II).
• High doses of radiotherapy (up to 75 Gy) were associated with satisfactory local control, especially in high-risk lesions.
• Cosmetic results were rated good or excellent in 80% of patients one year after radiotherapy, with a 6.5% local recurrence rate.

Impact:

• Demonstrates the effectiveness of breast conservation combined with multimodal adjuvant therapy for achieving excellent oncological and cosmetic outcomes.
• Highlights the importance of high-dose radiotherapy in achieving local control for high-risk breast cancer patients.
• Provides valuable long-term data supporting BCT as a viable and successful treatment option for primary breast cancer.