[Lumpectomy and sentinel lymph node navigation surgery for breast cancer under local anesthesia].

We studied and analyzed therapeutic outcomes of a radical surgery under local anesthesia for breast cancer in our department. Subjects were 42 patients with breast cancer whose diagnoses were definitely made before surgery. Indications were: localized DCIS diagnosed preoperatively; invasive carcinoma less than 3 cm in tumor diameter on ultrasound; and clinically tumors with negative axillary lymph nodes. Operative procedures included lumpectomy associated with sentinel lymph node navigation biopsy. We could perform the operation under local anesthesia in all of the 42 patients, and were not demanded to shift from local to general anesthesia. Two patients had sentinel lymph nodes metastasis. Surgical stumps were positive in 14 patients( 33.3%). None of serious complications were encountered. Today's radical operation under local anesthesia for breast cancer is a useful procedure as minimally invasive surgery as for the indications employed in this study.