Clinical Study of Breast Conserving Surgery Combined With Intraoperative Radiotherapy for Early Breast Cancer
A Single-center, open, prospective study，for analyzing the local recurrence rate, the incidence of incision complications and the aesthetic effect of intraoperative radiotherapy in early breast cancer patients after breast-conserving surgery.
• Age ≥55 years old；
• Cytology or histology confirmed invasive breast cancer or intraductal carcinoma in situ (DCIS) with a clinical stage of Tis-1N0M0；
• Patients who are willing to preserve milk and intend to undergo breast-conserving surgery；
• If invasive breast cancer is confirmed, the surgical margin negative ≥2mm should be met. If DCIS is confirmed, the surgical margin should be negative ≥3mm；
• ER≥ 30% and PR≥ 1%, HER2 negative；
• Voluntary participation in this study, signed informed consent, good compliance, cooperate with follow-up.