Robot-assisted nipple-sparing mastectomy: systematic review.

BACKGROUND: The growing volume of studies of robot-assisted nipple-sparing mastectomy requires critical assessment. This review synthesizes the data on safety, feasibility, oncological and cosmetic outcomes, and patient-reported outcome measures (PROMs) for robot-assisted nipple-sparing mastectomy. METHODS: A systematic review was performed using MEDLINE, MEDLINE In-Process/ePubs, Embase/Embase Classic, Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, LILACS, PubMed, ClinicalTrials.Gov, WHO ICTRP and the grey literature. Original studies reporting on patients with breast cancer or at increased risk of breast cancer undergoing robot-assisted nipple-sparing mastectomy were included. Risk of bias was assessed using the Institute of Health Economics Case Series Quality Appraisal Checklist. RESULTS: Of 7177 titles screened, eight articles were included, reporting on 249 robot-assisted nipple-sparing mastectomies in 187 women. The indication was either therapeutic (58·6 per cent) or prophylactic (41·4 per cent), with immediate reconstruction performed in 96·8 per cent. Surgical techniques followed a similar approach, with variations in incision, robot models, camera and insufflation. Postoperative morbidity included skin complications, lymphocele, infection, seroma, haematoma and skin ischaemia/necrosis. Complications specific to the nipple-areolar complex included ischaemia and necrosis. There were two conversions owing to haemorrhage, but no intraoperative deaths. Three patients had positive margins. Follow-up time ranged from 3·4 to 44·8 months. Locoregional recurrences were not observed. PROMs and objective cosmetic outcomes were reported inconsistently. Data on nipple sensitivity were not reported. CONCLUSION: Robot-assisted nipple-sparing mastectomy is feasible with acceptable short-term outcomes but it remains in the assessment phase.

ANTECEDENTES: El volumen creciente de estudios en los que se realiza una mastectomía con preservación de pezón asistida por robot requiere una evaluación crítica. Esta revisión sintetiza la seguridad, factibilidad y los resultados oncológicos, estéticos y percibidos por la paciente (patient-reported outcome measures, PROMs) tras la mastectomía con preservación del pezón asistida por robot. MÉTODOS: Se realizó una revisión sistemática utilizando Medline, Medline In-Process/ePubs, Embase/Embase Classic, el registro Cochrane Central de ensayos clínicos, la base de datos Cochrane de revisiones sistemáticas, LILACS, PubMed, ClinicalTrials.Gov, WHO ICTRP y la literatura gris (desde su inicio hasta el 3/5/2020). Se incluyeron los estudios originales en los que se realizaba una mastectomía con preservación de pezón asistida por robot en pacientes con cáncer de mama o con un aumento del riesgo de cáncer de mama. La posibilidad de sesgo se evaluó mediante la lista de verificación para la evaluación de la calidad de series de casos del Instituto de Economía de la Salud (Institute of Health Economics). RESULTADOS: De 7.177 artículos identificados, se seleccionaron 8 con 249 mastectomías con preservación de pezón asistidas por robot en 187 mujeres. La indicación fue terapéutica (58,6%) o profiláctica (41,4%) y la reconstrucción se realizó de forma inmediata en el 96,8% de los casos. La mediana de seguimiento más larga fue de 19 meses (rango 1,3-44 meses), y no se detectaron recidivas locorregionales. La técnica quirúrgica siguió un esquema similar, con diferencias en la incisión, modelo de robot, cámara e insuflación. Las complicaciones incluyeron complicaciones cutáneas, como necrosis, linfocele, infección de heridas, hematoma, seroma y necrosis del pezón. Hubo dos conversiones por hemorragia, pero ningún caso de mortalidad intraoperatoria. La presentación de datos respecto a los PROMs y los resultados cosméticos fue irregular. CONCLUSIÓN: La mastectomía con preservación de pezón asistida por robot es segura, factible y tiene resultados oncológicos aceptables a corto plazo. El procedimiento sigue siendo experimental y es preciso evaluar los resultados oncológicos a largo plazo y los PROMs en ensayos prospectivos comparativos y aleatorizados.

Clinical features and outcomes of 20 patients with abdominopelvic desmoplastic small round cell tumor.

INTRODUCTION: Desmoplastic small round cell tumor (DSRCT) is a rare mesenchymal malignancy. We describe our experience with treating DSRCT at a large sarcoma referral center. METHODS: A retrospective chart review was performed on DSRCT patients referred to our institution (1998-2014). Pathology specimens were reviewed to confirm the diagnosis. Clinical and imaging were extracted and summarized with descriptive statistics. Univariate analysis was performed to evaluate the association between patient, tumor, and treatment variables and overall survival (OS). RESULTS: In this study cohort of 20 patients, median age at presentation was 29 y (range 18-43) and 90% were male. Fifty-five percent presented with metastasis. Patients underwent chemotherapy (n = 20), radiation therapy (n = 3), and cytoreductive surgery (CRS) (n = 5). Median OS was 22 m (interquartile range: 12-28 m). Five-year OS rate was 20%. Extra-abdominal metastasis was associated with a higher hazard ratio (HR) of mortality (HR: 3.1, 95% C.I. 1.0-9.4, p = 0.04), while CRS improved OS (HR: 0.1, 95% C.I. 0.03-0.7, p = 0.02). CONCLUSIONS: Despite aggressive treatment, less than half of the patients were dead of DSRCT within 2 years of presentation. Although a select group of patients who underwent CRS had improved OS, novel treatments are urgently needed.

Treatment patterns of elderly breast cancer patients at two Canadian cancer centres.

BACKGROUND: Treatment of breast cancer in elderly women is limited by declining functional status and life expectancy. The impact of providing less aggressive treatment remains controversial. This study assessed the treatment patterns of elderly breast cancer patients. METHODS: Retrospective chart review of women ≥70 y with breast cancer treated between 2004 and 2011 at two large Canadian cancer centres. Tumour and treatment characteristics were collected across three subgroups: 70-74 y (n = 314), 75-79 y (n = 233), and ≥80 y (n = 219). Comparisons were made using Chi-squared test, Fisher-Freeman-Halton exact test, or ANOVA. Disease free (DFS) and overall (OS) survival were estimated by Kaplan-Meier analysis and compared by log-rank test. RESULTS: Women ≥80 y had larger tumours that were better differentiated, hormone receptor-positive, HER2-negative, and lymph node (LN)-positive relative to younger women (p < 0.05). Women ≥80 y more frequently underwent mastectomy than breast conserving surgery and lacked LN staging (p < 0.05). Chemotherapy was provided in few patients, especially ≥80 y. Radiation therapy was provided less often in women ≥80 y despite indications. Hormone therapy was more frequently provided in women ≥80 y. Women ≥80 y had a significantly lower DFS (17.5 m) relative to women 70-74 y (31 m, p = 0.02) and 75-79 y (35 m, p = 0.006). Women ≥80 y had the lowest median OS (53 m) relative to 70-74 y (79 m, p = 0.001) and 75-79 y (75 m, p = 0.003) women. CONCLUSIONS: Women ≥80 y received less aggressive treatment than younger women and had less favourable DFS and OS. Until age-specific recommendations are available physicians must use clinical judgement and assess the tumour biology with the patient's comorbidties to make the best choice.

Perioperative variables associated with surgical site infection in breast cancer surgery.

Despite the fact that breast operations are usually categorized as clean procedures, higher surgical site infection (SSI) rates are reported. This study aimed to determine the perioperative variables related to SSI in breast cancer patients. Medical records of breast cancer patients undergoing surgery between January 2005 and August 2007 at a university based hospital were reviewed. Preoperative, intraoperative, and postoperative clinical data from 199 patients were extracted and analysed. Overall, the SSI rate was 19.1% (38 cases). SSI was associated with a high body mass index (P=0.001), history of diabetes mellitus (P<0.0001), smoking (P<0.0001), or active skin disorders (P<0.0001). Other SSI-related variables included a tumour at an advanced clinical stage (P=0.003) and neoadjuvant therapy (P=0.003). Breast-conserving operations were less frequently associated with SSI than were radical procedures (mastectomy alone and mastectomy followed by immediate reconstruction) (P=0.0001).