Journal
JOURNAL OF SURGICAL ONCOLOGY
Volume 93, Issue 2, Pages 120-128Publisher
WILEY
DOI: 10.1002/jso.20398
Keywords
breast cancer; minimally invasive surgery; radiofrequency ablation
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Background: With the growing demand from patients for less-invasive procedures, the shift from surgical extirpation to ablative local control of breast tumors is an emerging focus in breast cancer care. This study was performed to determine the feasibility and safety of treating small breast cancer with radiofrequency (RF) ablation. Methods: Patients with biopsy-proven invasive or non-invasive breast cancer underwent RF ablation under general anesthesia. Before RF ablation, all patients were confirmed to have a localized lesion using imaging modalities. Wide excision or total mastectomy with sentinel lymph node biopsy or axillary lymph node dissection was performed. The resected tumor was examined histologically with hematoxylineosin (H&E) and nicotinamide adenine dinucleotide-diaphorase (NADH) staining. Results: Ten patients completed the treatment without RF ablation-related complications. The mean tumor size was 1.1 cm (range: 0.5-2.0 cm). Histological evaluation of the ablated tissue using H&E staining revealed a spectrum of changes ranging from complete coagulation necrosis of tumor cells to normal-appearing tumor cells. However, NADH-diaphorase showed no staining of viable tumor cells in the RF-ablated region in all of the patients. Conclusions: RF ablation is promising as a minimally invasive ablation technique in the local treatment of invasive or non-invasive breast cancer. However, further study is necessary before RF ablation can replace conventional breast conservation therapy for patients with small breast cancer.
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