Electrosurgical Bipolar Systems Versus Conventional Electrocautery After SLNBx

The efficacy of electrosurgical bipolar systems in axillary lymph node dissection for breast cancer surgery is well known. In this study, the investigators aim to determine whether using electrosurgical bipolar systems helps reduce seroma formation in high-risk patients undergoing sentinel lymph node biopsy (SLNB) for breast cancer surgery. The investigators will focus on patients who are expected to experience high drainage output after SLNB, especially those who are obese (BMI\>25) or have undergone preoperative chemotherapy.