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Predicting survival in bilateral breast carcinoma.
A I Alexander1, R J Mercer, I M Muir
1University of Melbourne, Department of Surgery, St Vincent's Hospital, Fitzroy, Victoria, Australia.
The Australian and New Zealand Journal of Surgery
|January 1, 1989
Summary
Survival outcomes for patients with bilateral breast cancer are poorer than predicted. This study analyzed synchronous and metachronous tumors, finding survival rates lower than expected based on established prognostic factors.
Area of Science:
- Oncology
- Medical Research
Background:
- Bilateral breast cancer presents unique challenges in prognosis.
- Existing predictive models may not fully capture survival in these complex cases.
Purpose of the Study:
- To evaluate survival in patients with bilateral breast cancer.
- To assess the accuracy of a predictive index in this patient cohort.
Main Methods:
- Retrospective analysis of 38 patients with bilateral breast cancer.
- Categorization into synchronous (14) and metachronous (24) tumor groups.
- Comparison of actual survival with predictions from a validated index (lymph node status, hormone receptor status, age).
Main Results:
- Overall survival was less than predicted by the index for individual tumors.
- A combined index for both tumors improved prediction but still overestimated survival.
- Both synchronous and metachronous bilateral breast cancer showed poorer survival than anticipated.
Conclusions:
- Bilateral breast cancer, whether synchronous or metachronous, is associated with poor survival.
- Current predictive indices may underestimate the severity of bilateral breast cancer.
- Further research is needed to refine prognostic models for bilateral breast cancer.