Risk of Local Recurrence After Breast-Conserving Therapy
Author Information
Author(s): J. Jacquemier, J.M. Kurtz, R. Amalric, H. Brandone, Y. Ayme, J.-M. Spitalier
Primary Institution: Marseille Cancer Institute
Hypothesis
Does the presence of extensive intraductal component (EIC) increase the risk of local recurrence after breast-conserving therapy?
Conclusion
The presence of extensive intraductal component significantly increases the risk of local recurrence in premenopausal patients but not in post-menopausal patients.
Supporting Evidence
- EIC was diagnosed in 28% of premenopausal and 15.5% of post-menopausal patients.
- Local recurrence risk was 18% for EIC+ patients compared to 8% for EIC- patients.
- The presence of EIC had no influence on overall survival.
- Local recurrence risk increased with the degree of EIC.
Takeaway
If a patient has a lot of intraductal cancer, they might have a higher chance of their breast cancer coming back, especially if they are younger.
Methodology
The study analyzed 496 patients with stage I-II infiltrating ductal cancers treated with conservative surgery and irradiation, reviewing histological slides and calculating actuarial local recurrence rates.
Potential Biases
Differences in diagnosis and assessment of EIC among pathologists could introduce bias.
Limitations
The study's retrospective nature and the potential variability in diagnosing EIC may limit the findings.
Participant Demographics
Patients included 231 premenopausal and 265 post-menopausal women.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
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