Efficacy of Preoperative Radiotherapy for Non-responder Patients After Neoadjuvant Chemotherapy

Neoadjuvant chemotherapy (NACT) is widely used for locally advanced breast cancer cases. As the key factor is to achieve pathologic complete response (pCR), several physicians tried administering radiotherapy before surgery to increase response rates. In this single center observational cohort study, we aim to present the initial results as complete response rates and complication rates of additional neoadjuvant radiotherapy (NART) after NACT.