Prognostic factors in operable breast cancer

Area of Science:

• Oncology
• Biostatistics
• Clinical Medicine

Background:

• Operable breast cancer management requires accurate prognostic factors.
• Understanding variables influencing nodal metastasis and survival is crucial for patient stratification.

Purpose of the Study:

• To identify host and primary tumor variables associated with nodal metastases.
• To determine factors significantly affecting survival in breast cancer patients.
• To define homogeneous risk groups for prognosis and adjuvant therapy decisions.

Main Methods:

• Multivariate statistical analysis of 743 operable breast cancer cases.
• Evaluation of patient age, primary tumor characteristics, and lymph node status.
• Stratification into risk groups based on prognostic variables.

Main Results:

• Younger patients and larger tumors showed higher rates of nodal metastases.
• Axillary tail, upper outer, and central quadrant tumors were linked to increased nodal metastasis.
• Patient age, primary tumor size, and number of metastatic nodes were significant survival predictors.
• Number of involved lymph nodes emerged as the most critical prognostic factor for node-positive patients.
• Tumor site did not significantly influence survival, despite its association with metastasis frequency.
• Distinct risk groups were identified for both node-negative and node-positive patients.

Conclusions:

• Age, primary tumor size, and lymph node status are vital for post-surgical prognosis.
• These factors help identify high-risk patients who may benefit from adjuvant treatment.
• Risk stratification aids in personalized breast cancer management strategies.