RESUMEN
BACKGROUND: Oncoplastic surgery has been increasingly used in breast cancer treatment and allows the performance of breast-conserving surgery in cases of larger tumors with unfavorable location or tumor-breast disproportion. PURPOSE: To compare surgical and oncological outcomes of patients undergoing oncoplastic and nononcoplastic breast-conserving surgery. METHODS: Retrospective cohort study with convenience sampling of 866 patients who consecutively underwent breast-conserving surgery from 2011 to 2015. RESULTS: The mean follow-up was 50.4 months. Nononcoplastic breast conservation surgery was performed on 768 (88.7%) patients and oncoplastic surgery on 98 (11.3%) patients. Patients in the oncoplastic group were younger (p<0.0001) and most were premenopausal (p<0.0001). Comorbidities such as diabetes (p=0.003) and hypertension (p=0.0001) were less frequent in this population. Invasive carcinoma >2 cm (p<0.0001), multifocality (p=0.004), ductal in situ carcinoma (p=0.0007), clinically positive axilla (p=0.004), and greater weight of surgical specimens (p<0.0001) were more frequent in the oncoplastic group. A second surgery for margin re-excision was more frequently performed in the nononcoplastic group (p=0.027). There was more scar dehiscence in the oncoplastic group (p<0.001), but there was no difference in early major complications (p=0.854), conversion to mastectomy (p=0.92), or local recurrence (p=0.889). CONCLUSION: Although used for the treatment of larger and multifocal tumors, surgical re-excisions were performed less often in the oncoplastic group, and there was no increase in conversion to mastectomy or local recurrence. In spite of the higher rate of overall complications in the oncoplastic group, major complications were similar in both groups.
RESUMEN
Patients with noninflammatory locally advanced breast cancer with ulceration of skin or muscle or parietal wall infiltration, better named "extended locally advanced breast cancer," may require cancer surgery and plastic reconstruction of the chest wall after multidisciplinary evaluation. The decision is made to improve quality of life, independently of prognosis, and severity of the disease. The aim of this study is to evaluate the best method for surgical closure of the chest wall and to check whether ablative surgery is an appropriate procedure in regards to the treatment of cancer. From October 1997 to June 2006, 27 patients with noninflammatory extended locally advanced breast cancer with ulceration of the skin, who were not candidate or did not respond to a neo-adjuvant treatment, underwent radical mastectomy and reconstructive surgery. Sixteen patients (59%) were affected by primary tumors of the breast, and eleven patients (41%) had local recurrence after mastectomy or conservative breast surgery. Two main techniques were used for breast reconstruction: transverse rectus-abdominis musculo cutaneous flap in 19 patients (70%), and a fasciocutaneous flap in eight patients (30%). The best procedure in each patient was chosen according to the extent of skin loss or previous radiotherapy to the chest wall. Fourteen patients (52%) died during the follow-up and the median length of survival was 16 months (range 3-79) in transverse rectus-abdominis musculo cutaneous group and 4 months (range 2-23) in fasciocutaneous flap group. The median length of follow-up after treatment for patients still alive was 32.5 months (range 0-96) in transverse rectus-abdominis musculo cutaneous flap group, and 18 months (range 8-41) in fasciocutaneous flap group. At the end of the follow-up, 10 patients were alive without evidence of disease and three patients developed metastatic lesion or local recurrence. The longest recorded disease free interval for a patient still alive and tumor free was 96 months. Only three patients (11%) had local complications: two wound infections and one partial necrosis of the transverse rectus-abdominis musculo cutaneous flap. Median hospital stay was 7 days (range 3-13) for transverse rectus-abdominis musculo cutaneous and 6 days (range 3-13) for fasciocutaneous flap. Our results confirmed that transverse rectus-abdominis musculo cutaneous group and fasciocutaneous flap flaps are good reconstructive options in patients with extended locally advanced breast cancer. Quality of life has improved in this group of patients, with acceptable survival periods and in some cases very important survival rates.
