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[Radiotherapy following breast-conserving surgery: more local recurrences after longer delay]
B J Slotman1, O W Meyer, K H Njo
1Academisch Ziekenhuis Vrije Universiteit, afd. Radiotherapie, Amsterdam.
Nederlands Tijdschrift Voor Geneeskunde
|November 25, 1995
Summary
Delaying radiotherapy after breast conserving surgery for early stage breast cancer by more than seven weeks increases the risk of local tumor recurrence. Timely adjuvant radiotherapy is crucial for optimal breast cancer treatment outcomes.
Area of Science:
- Oncology
- Radiotherapy
- Surgical Oncology
Context:
- Breast conserving therapy (BCT) is a standard treatment for early-stage breast cancer.
- Radiotherapy following BCT is essential for local tumor control.
- The optimal timing of radiotherapy relative to surgery is a critical factor.
Purpose:
- To evaluate the outcomes of breast conserving therapy for early-stage breast cancer.
- To determine the significance of the time interval between surgery and radiotherapy on treatment efficacy.
- To identify predictive factors for breast recurrence after BCT.
Summary:
- A study of 554 patients with early-stage breast cancer treated with BCT and radiotherapy found that a delay of over 7 weeks between surgery and radiotherapy was associated with a higher rate of local breast recurrence (6.1% vs. 2.4%).
- Factors independently predicting breast recurrence included a longer interval between surgery and radiotherapy, T-stage, and patient age.
- The 5 and 10-year survival rates were 86.7% and 72.6%, respectively, with a local relapse rate of 3.9%.
Impact:
- Findings highlight the importance of adhering to recommended timelines for adjuvant radiotherapy after breast conserving surgery.
- Optimizing the timing of radiotherapy can improve local tumor control rates in early-stage breast cancer patients.
- This research informs clinical decision-making and treatment protocols to enhance patient outcomes.