Breaking the Dilemma of Margins in Breast-Conserving Surgery: SHAVE Series Research Confirms CSM Significantly Reduces Re-excision Rates, but Long-term Survival Benefit Remains Dominated by Radiotherapy
At the recent American Society of Clinical Oncology (ASCO) Annual Meeting, Professor Anees B. Chagpar, a Professor of Surgery at the Yale School of Medicine, delivered an important special report titled "Does resection of cavity shave margins impact survival in breast cancer patients?". Based on the famous SHAVE and SHAVE2 randomized controlled trials, the report explored the advantages of Cavity Shave Margins (CSM) in breast-conserving surgery (BCS) regarding the reduction of positive margin rates and re-excision rates. For the first time, it disclosed detailed long-term impacts on patients' 5-year local recurrence (LR) rates, disease-free survival (DFS), and overall survival (OS), providing key evidence-based support for treatment de-escalation and multi-modal synergy in the field of breast surgery.









