RESUMEN
BACKGROUND: Black women with breast cancer have a worse overall survival compared with White women; however, no difference in Oncotype DX™ (ODX) recurrence scores has been observed to explain this health disparity. Black women are also disproportionately affected by insulin resistance. We evaluated whether insulin resistance is associated with a higher ODX recurrence score and whether there is a difference between White and Black women to explain disparate clinical outcomes. METHODS: A subgroup analysis of patients in a multi-institutional cross-sectional study evaluating differences in insulin resistance between White and Black women was performed. Women diagnosed with a new hormone receptor-positive, HER2/neu-negative breast cancer with an ODX recurrence score were identified. Fasting blood glucose and insulin measurements were used to calculate the homeostatic model assessment of insulin resistance (HOMA-IR) score, a method for assessing insulin resistance, and compared against ODX scores. RESULTS: Overall, 412 women (358 White women, 54 Black women) were identified. Compared with White women, Black women had a higher body mass index (30 vs. 26 kg/m2, p < 0.0001), higher HOMA-IR score (2.4 vs. 1.4, p = 0.004), and more high-grade tumors (30% vs. 16%, p = 0.01). There was a direct positive association with an increasing ODX score and HOMA-IR (p = 0.014). On subset analysis, this relationship was seen in White women (p = 0.005), but not in Black women (p = 0.55). CONCLUSION: In women with newly diagnosed breast cancer, increasing insulin resistance is associated with a higher recurrence score; however, this association was not present in Black women. This lack of association may be due to the small number of Black women in the cohort, or possibly a reflection of a different biological disease process of the patient's tumor.
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Neoplasias de la Mama , Resistencia a la Insulina , Negro o Afroamericano , Estudios Transversales , Femenino , Humanos , Recurrencia Local de NeoplasiaRESUMEN
BACKGROUND: The ICE3 trial is designed to evaluate the safety and efficacy of breast cryoablation, enabling women older than 60 years with low-risk early-stage breast cancers to benefit from a nonsurgical treatment and to avoid the associated surgical risks. METHODS: The ICE3 trial is a prospective, multi-center, single-arm, non-randomized trial including women age 60 years or older with unifocal, ultrasound-visible invasive ductal carcinoma size 1.5 cm or smaller and classified as low to intermediate grade, hormone receptor (HR)-positive, and human epidermal growth factor receptor 2 (HER2)-negative. Ipsilateral breast tumor recurrence (IBTR) at 5 years was the primary outcome. A 3-year interim analysis of IBTR was performed, and the IBTR probability was estimated using the Kaplan-Meier method. RESULTS: Full eligibility for the study was met by 194 patients, who received successful cryoablation per protocol. The mean age was 75 years (range, 55-94 years). The mean tumor length was 8.1 mm (range, 8-14.9 mm), and the mean tumor width was 7.4 mm (range, 2.8-14 mm). During a mean follow-up period of 34.83 months, the IBTR rate was 2.06% (4/194 patients). Device-related adverse events were reported as mild in 18.4% and moderate in 2.4% of the patients. No severe device-related adverse events were reported. More than 95% of the patients and 98% of the physicians reported satisfaction with the cosmetic results at the clinical follow-up evaluation. CONCLUSIONS: Breast cryoablation presents a promising alternative to surgery while offering the benefits of a minimally invasive procedure with minimal risks. Further study within a clinical trial or registry is needed to confirm cryoablation as a viable alternative to surgical excision for appropriately selected low-risk patients.
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Neoplasias de la Mama , Criocirugía , Anciano , Neoplasias de la Mama/cirugía , Femenino , Humanos , Mastectomía Segmentaria , Persona de Mediana Edad , Recurrencia Local de Neoplasia/cirugía , Estudios ProspectivosRESUMEN
BACKGROUND: Racial disparities in breast cancer survival between Black and White women persist across all stages of breast cancer. The metabolic syndrome (MetS) of insulin resistance disproportionately affects more Black than White women. It has not been discerned if insulin resistance mediates the link between race and poor prognosis in breast cancer. We aimed to determine whether insulin resistance mediates in part the association between race and breast cancer prognosis, and if insulin receptor (IR) and insulin-like growth factor receptor (IGF-1R) expression differs between tumors from Black and White women. METHODS: We conducted a cross-sectional, multi-center study across ten hospitals. Self-identified Black women and White women with newly diagnosed invasive breast cancer were recruited. The primary outcome was to determine if insulin resistance, which was calculated using the homeostatic model assessment of insulin resistance (HOMA-IR), mediated the effect of race on prognosis using the multivariate linear mediation model. Demographic data, anthropometric measurements, and fasting blood were collected. Poor prognosis was defined as a Nottingham Prognostic Index (NPI) > 4.4. Breast cancer pathology specimens were evaluated for IR and IGF-1R expression by immunohistochemistry (IHC). RESULTS: Five hundred fifteen women were recruited (83% White, 17% Black). The MetS was more prevalent in Black women than in White women (40% vs 20%, p < 0.0001). HOMA-IR was higher in Black women than in White women (1.9 ± 1.2 vs 1.3 ± 1.4, p = 0.0005). Poor breast cancer prognosis was more prevalent in Black women than in White women (28% vs 15%. p = 0.004). HOMA-IR was positively associated with NPI score (r = 0.1, p = 0.02). The mediation model, adjusted for age, revealed that HOMA-IR significantly mediated the association between Black race and poor prognosis (ß = 0.04, 95% CI 0.005-0.009, p = 0.002). IR expression was higher in tumors from Black women than in those from White women (79% vs 52%, p = 0.004), and greater IR/IGF-1R ratio was also associated with higher NPI score (IR/IGF-1R > 1: 4.2 ± 0.8 vs IR/IGF-1R = 1: 3.9 ± 0.8 vs IR/IGF-1R < 1: 3.5 ± 1.0, p < 0.0001). CONCLUSIONS: In this multi-center, cross-sectional study of US women with newly diagnosed invasive breast cancer, insulin resistance is one factor mediating part of the association between race and poor prognosis in breast cancer.
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Negro o Afroamericano/estadística & datos numéricos , Neoplasias de la Mama/epidemiología , Neoplasias de la Mama/patología , Disparidades en Atención de Salud/estadística & datos numéricos , Resistencia a la Insulina , Población Blanca/estadística & datos numéricos , Neoplasias de la Mama/metabolismo , Estudios Transversales , Femenino , Humanos , Persona de Mediana Edad , Clasificación del Tumor , Estadificación de Neoplasias , Pronóstico , Receptor IGF Tipo 1/metabolismo , Receptor de Insulina/metabolismo , Estados Unidos/epidemiologíaRESUMEN
The COVID-19 pandemic presents clinicians a unique set of challenges in managing breast cancer (BC) patients. As hospital resources and staff become more limited during the COVID-19 pandemic, it becomes critically important to define which BC patients require more urgent care and which patients can wait for treatment until the pandemic is over. In this Special Communication, we use expert opinion of representatives from multiple cancer care organizations to categorize BC patients into priority levels (A, B, C) for urgency of care across all specialties. Additionally, we provide treatment recommendations for each of these patient scenarios. Priority A patients have conditions that are immediately life threatening or symptomatic requiring urgent treatment. Priority B patients have conditions that do not require immediate treatment but should start treatment before the pandemic is over. Priority C patients have conditions that can be safely deferred until the pandemic is over. The implementation of these recommendations for patient triage, which are based on the highest level available evidence, must be adapted to current availability of hospital resources and severity of the COVID-19 pandemic in each region of the country. Additionally, the risk of disease progression and worse outcomes for patients need to be weighed against the risk of patient and staff exposure to SARS CoV-2 (virus associated with the COVID-19 pandemic). Physicians should use these recommendations to prioritize care for their BC patients and adapt treatment recommendations to the local context at their hospital.
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Neoplasias de la Mama/clasificación , Neoplasias de la Mama/terapia , Infecciones por Coronavirus/epidemiología , Neumonía Viral/epidemiología , Betacoronavirus/aislamiento & purificación , Neoplasias de la Mama/diagnóstico , Neoplasias de la Mama/patología , COVID-19 , Infecciones por Coronavirus/virología , Femenino , Recursos en Salud , Humanos , Invasividad Neoplásica , Pandemias , Neumonía Viral/virología , SARS-CoV-2 , Telemedicina , TriajeRESUMEN
PURPOSE: Adjuvant therapy decisions may in part be based on results of Oncotype DX Breast Recurrence Score® (RS) testing of primary tumors. When necessary, lymph node metastases may be considered as a surrogate. Here we evaluate the concordance in gene expression between primary breast cancers and synchronous lymph node metastases, based on results from quantitative RT-PCR-based RS testing between matched primary tumors and synchronous nodal metastases. METHODS: This retrospective, exploratory study included patients (≥ 18 years old) treated at our center (2005-2009) who had ER+ , HER2-negative invasive breast cancer and synchronous nodal metastases with available tumor blocks from both sites. Paired tissue blocks underwent RS testing, and RS and single-gene results for ER, PR, and HER2 were explored between paired samples. RESULTS: A wide distribution of RS results in tumors and in synchronous nodal metastases were modestly correlated between 84 paired samples analyzed (Pearson correlation 0.69 [95% CI 0.55-0.78]). Overall concordance in RS group classification between samples was 63%. ER, PR, and HER2 by RT-PCR between the primary tumor and lymph node were also modestly correlated (Pearson correlation [95% CI] 0.64 [0.50-0.75], 0.64 [0.49-0.75], and 0.51 [0.33-0.65], respectively). Categorical concordance (positive or negative) was 100% for ER, 77% for PR, and 100% for HER2. CONCLUSIONS: There is modest correlation in continuous gene expression, as measured by the RS and single-gene results for ER, PR, and HER2 between paired primary tumors and synchronous nodal metastases. RS testing for ER+ breast cancer should continue to be based on analysis of primary tumors.
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Biomarcadores de Tumor , Neoplasias de la Mama/diagnóstico , Neoplasias de la Mama/genética , Genómica , Ganglios Linfáticos/patología , Adulto , Anciano , Anciano de 80 o más Años , Biopsia , Femenino , Genómica/métodos , Humanos , Metástasis Linfática , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Estadificación de Neoplasias , Estudios Retrospectivos , Adulto JovenRESUMEN
BACKGROUND: The purpose of this consensus guideline is to outline recommendations for genetic testing that medical professionals can use to assess hereditary risk for breast cancer. METHODS: Literature review included large datasets, basic and clinical science publications, and recent updated national guidelines. Genetic testing to assess hereditary risk of cancer is a complex, broad, and dynamic area of medical research. The dominant focus of this guideline is limited in scope to breast cancer. RESULTS: There is a lack of consensus among experts regarding which genes among many should be tested in different clinical scenarios. There is also variation in the degree of consensus regarding the understanding of risk and appropriate clinical management of mutations in many genes. CONCLUSIONS: Genetic testing should be made available to all patients with a personal history of breast cancer. Recent data are reviewed that support genetic testing being offered to each patient with breast cancer (newly diagnosed or with a personal history). If genetic testing is performed, such testing should include BRCA1/BRCA2 and PALB2, with other genes as appropriate for the clinical scenario and family history. For patients with newly diagnosed breast cancer, identification of a mutation may impact local treatment recommendations. Patients who had genetic testing previously may benefit from updated testing. Genetic testing should be made available to patients without a history of breast cancer who meet National Comprehensive Cancer Network guidelines. Finally, variants of uncertain significance are not clinically actionable and these patients should be managed based on their individual risk factors.
Asunto(s)
Biomarcadores de Tumor/genética , Neoplasias de la Mama/genética , Predisposición Genética a la Enfermedad , Pruebas Genéticas/normas , Mutación , Guías de Práctica Clínica como Asunto/normas , Cirujanos/normas , Proteína BRCA1/genética , Proteína BRCA2/genética , Neoplasias de la Mama/diagnóstico , Femenino , Humanos , Valor Predictivo de las Pruebas , Medición de RiesgoRESUMEN
BACKGROUND: There is limited compensation data for breast surgery benchmarking. In 2018, the American Society of Breast Surgeons conducted its second membership survey to obtain updated compensation data as well as information on practice type and setting. METHODS: In October 2018, a survey was emailed to 2676 active members. Detailed information on compensation was collected, as well as data on gender, training, years in and type of practice, percent devoted to breast surgery, workload, and location. Descriptive statistics and multivariate analyses were performed to analyze the impact of various factors on compensation. RESULTS: The response rate was 38.2% (n = 1022, of which 73% were female). Among the respondents, 61% practiced breast surgery exclusively and 54% were fellowship trained. The majority of fellowship-trained surgeons within 5 years of completion of training (n = 126) were female (91%). Overall, mean annual compensation was $370,555. On univariate analysis, gender, years of practice, practice type, academic position, ownership, percent breast practice, and clinical productivity were associated with compensation, whereas fellowship training, region, and practice setting were not. On multivariate analysis, higher compensation was significantly associated with male gender, years in practice, number of cancers treated per year, and wRVUs. Compensation was lower among surgeons who practiced 100% breast compared with those who did a combination of breast and other surgery. CONCLUSIONS: Differences in compensation among breast surgeons were identified by practice type, academic position, ownership, years of practice, percent breast practice, workload, and gender. Overall, mean annual compensation increased by $40,000 since 2014.
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Neoplasias de la Mama/cirugía , Mastectomía/economía , Pautas de la Práctica en Medicina/estadística & datos numéricos , Salarios y Beneficios/estadística & datos numéricos , Cirujanos/economía , Neoplasias de la Mama/patología , Becas , Femenino , Humanos , Masculino , Mastectomía/educación , Persona de Mediana Edad , Sociedades Médicas , Encuestas y Cuestionarios , Factores de TiempoRESUMEN
BACKGROUND: Most breast cancers begin in the ductal epithelium with normal cells and progress to atypia and finally to carcinoma. Mammary ductoscopy enables one to directly visualize and sample the ductal epithelium and, therefore, identify early changes cytologically. This article describes our initial experience with mammary ductoscopy at Beth Israel Medical Center. METHODS: A prospective review of all patients who underwent ductoscopy at Beth Israel Medical Center from November 2001 to February 2004 was performed. The indications for ductoscopy were a persistent nipple discharge, high-risk status, or intraoperative margin assessment in patients undergoing lumpectomy. RESULTS: Seventy-four patients underwent ductoscopic evaluation of 88 ducts. Of the 32 patients who underwent office ductoscopy, 15 were high risk, and 17 had spontaneous nipple discharge. Spontaneous nipple discharge was the indication for ductoscopy in 40 of 42 intraoperative procedures. The remaining two patients underwent ductoscopy for margin assessment during breast conservation, and final pathologic analysis revealed negative margins. Thirty-eight of the 40 patients who had spontaneous nipple discharge had abnormal findings during ductoscopy and therefore underwent ductoscopically guided duct excision. Carcinoma was the final diagnosis in 5 (8.8%) of the 57 patients who were scoped for nipple discharge. CONCLUSIONS: Mammary ductoscopy is a potentially useful tool in the evaluation of patients with spontaneous nipple discharge. This is a well-tolerated office procedure with minimal risks and complications. Mammary ductoscopy may have a role in the assessment of high-risk women. Further research is necessary to confirm these potential applications.
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Neoplasias de la Mama/diagnóstico por imagen , Carcinoma Ductal de Mama/diagnóstico por imagen , Carcinoma Intraductal no Infiltrante/diagnóstico por imagen , Endoscopía , Glándulas Mamarias Humanas/diagnóstico por imagen , Secreción del Pezón/diagnóstico por imagen , Neoplasias de la Mama/cirugía , Carcinoma Ductal de Mama/cirugía , Carcinoma Intraductal no Infiltrante/cirugía , Femenino , Humanos , Márgenes de Escisión , Mastectomía Segmentaria , Neoplasia Residual , Selección de Paciente , Estudios Prospectivos , Factores de RiesgoRESUMEN
BACKGROUND: The presence of tumor cells at the margins of breast lumpectomy specimens is associated with an increased risk of ipsilateral tumor recurrence. Twenty to 30 % of patients undergoing breast-conserving surgery require second procedures to achieve negative margins. This study evaluated the adjunctive use of the MarginProbe device (Dune Medical Devices Ltd, Caesarea, Israel) in providing real-time intraoperative assessment of lumpectomy margins. METHODS: This multicenter randomized trial enrolled patients with nonpalpable breast malignancies. The study evaluated MarginProbe use in addition to standard intraoperative methods for margin assessment. After specimen removal and inspection, patients were randomized to device or control arms. In the device arm, MarginProbe was used to examine the main lumpectomy specimens and direct additional excision of positive margins. Intraoperative imaging was used in both arms; no intraoperative pathology assessment was permitted. RESULTS: In total, 596 patients were enrolled. False-negative rates were 24.8 and 66.1 % and false-positive rates were 53.6 and 16.6 % in the device and control arms, respectively. All positive margins on positive main specimens were resected in 62 % (101 of 163) of cases in the device arm, versus 22 % (33 of 147) in the control arm (p < 0.001). A total of 19.8 % (59 of 298) of patients in the device arm underwent a reexcision procedure compared with 25.8 % (77 of 298) in the control arm (6 % absolute, 23 % relative reduction). The difference in tissue volume removed was not significant. CONCLUSIONS: Adjunctive use of the MarginProbe device during breast-conserving surgery improved surgeons' ability to identify and resect positive lumpectomy margins in the absence of intraoperative pathology assessment, reducing the number of patients requiring reexcision. MarginProbe may aid performance of breast-conserving surgery by reducing the burden of reexcision procedures for patients and the health care system.
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Neoplasias de la Mama/patología , Neoplasias de la Mama/cirugía , Cuidados Intraoperatorios/instrumentación , Mastectomía Segmentaria/instrumentación , Carcinoma Ductal de Mama/patología , Carcinoma Ductal de Mama/cirugía , Carcinoma Intraductal no Infiltrante/patología , Carcinoma Intraductal no Infiltrante/cirugía , Carcinoma Lobular/patología , Carcinoma Lobular/cirugía , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Invasividad Neoplásica , Estadificación de Neoplasias , Neoplasia Residual/prevención & control , Pronóstico , Estudios ProspectivosRESUMEN
Previous studies have reported higher recurrence rates in T1a/b N0 breast cancers characterized by high-risk biology (HER2+ or triple-negative), but the benefits of adjuvant chemotherapy in these patients have not been established. This study was designed to determine whether recurrence risk is reduced with chemotherapy and to define a group of patients most appropriate for treatment based on retrospective data. We pooled cases from two multi-institutional databases spanning the period of 1996-2010. A propensity score model adjusted unbalanced confounders between the groups treated or untreated with adjuvant chemotherapy and, in case of HER2-positive disease, with trastuzumab. Competing risk analysis was utilized to study effects of chemotherapy on cancer recurrences in the matched populations. Among the 318 patients identified, 41 % received adjuvant chemotherapy and 54 % of HER2+ patients received it with trastuzumab. The cumulative risk of recurrence at 5 years was 7.3 %. Age less than 35 years and triple-negative status were the only significant prognostic factors. Overall, administration of chemotherapy was not associated with a significant decrease in the risk of recurrence (HR 0.93, p = 0.91). The rate of recurrence in HER2+ patients who received trastuzumab was lower but not statistically significant (HR 0.50, p = 0.63). Clinical characteristics are of limited prognostic value for stratifying risk of recurrence in very small, node-negative HER2+, or triple-negative cancers. While limited by the small number of events, our analysis does not support the increasingly prevalent practice of administering adjuvant chemotherapy in this population without more accurate prognostic and predictive factors.
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Anticuerpos Monoclonales Humanizados/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/metabolismo , Receptor ErbB-2/metabolismo , Anciano , Anticuerpos Monoclonales Humanizados/administración & dosificación , Neoplasias de la Mama/mortalidad , Neoplasias de la Mama/patología , Quimioterapia Adyuvante , Femenino , Humanos , Persona de Mediana Edad , Clasificación del Tumor , Estadificación de Neoplasias , Receptor ErbB-2/antagonistas & inhibidores , Receptores de Estrógenos/metabolismo , Receptores de Progesterona/metabolismo , Recurrencia , Estudios Retrospectivos , TrastuzumabRESUMEN
BACKGROUND: Mammography remains the standard imaging technique for the diagnosis of ductal carcinoma-in-situ (DCIS). Functional breast imaging, including breast magnetic resonance imaging (MRI), has known limitations in evaluating DCIS. To date, there are limited data on the utility of breast-specific gamma imaging (BSGI) in DCIS. We sought to prospectively compare the sensitivity of BSGI to MRI in newly diagnosed DCIS patients. METHODS: Patients with newly diagnosed DCIS from June 1, 2009, through May 31, 2010, underwent a protocol with both breast MRI and BSGI. Each imaging study was read by a separate dedicated breast radiologist. Patients were excluded if excisional biopsy was performed for diagnosis, if their MRI was performed at an outside facility, or if final pathology revealed invasive carcinoma. RESULTS: There were 18 patients enrolled onto the study that had both MRI and BSGI for newly diagnosed DCIS. The sensitivity for MRI was 94% and for BSGI was 89% (P > 0.5, NS). There was one index tumor not seen on either MRI or BSGI, and one index tumor seen on MRI but not visualized on BSGI. DISCUSSION: Although BSGI has previously been shown to be as sensitive as MRI for detecting known invasive breast carcinoma, this study shows that BSGI is equally as sensitive as MRI at detecting newly diagnosed DCIS. As a result of the limited number of patients enrolled onto the study, larger prospective studies need to be performed to determine the true sensitivity and specificity of BSGI.
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Neoplasias de la Mama/diagnóstico por imagen , Carcinoma Intraductal no Infiltrante/diagnóstico por imagen , Imagen por Resonancia Magnética , Tecnecio Tc 99m Sestamibi , Femenino , Estudios de Seguimiento , Cámaras gamma , Humanos , Persona de Mediana Edad , Invasividad Neoplásica , Estadificación de Neoplasias , Pronóstico , Estudios Prospectivos , Radiografía , Cintigrafía , Radiofármacos , Sensibilidad y EspecificidadRESUMEN
The survival for breast cancer (BC) is improving but remains lower in Black women than White women. A number of factors potentially drive the racial differences in BC outcomes. The aim of our study was to determine if insulin resistance (defined as homeostatic model assessment for insulin resistance (HOMA-IR)), mediated part of the relationship between race and BC prognosis (defined by the improved Nottingham prognostic index (iNPI)). We performed a cross-sectional study, recruiting self-identified Black and White women with newly diagnosed primary invasive BC from 10 US hospitals between March 2013 and February 2020. Survey, anthropometric, laboratory, and tumor pathology data were gathered, and we compared the results between Black and White women. We calculated HOMA-IR as well as iNPI scores and examined the associations between HOMA-IR and iNPI. After exclusions, the final cohort was 1206: 911 (76%) White and 295 (24%) Black women. Metabolic syndrome and insulin resistance were more common in Black than White women. Black women had less lobular BC, three times more triple-negative BC, and BCs with higher stage and iNPI scores than White women (P < 0.001 for all comparisons). Fewer Black women had BC genetic testing performed. HOMA-IR mediated part of the association between race and iNPI, particularly in BCs that carried a good prognosis and were hormone receptor (HR)-positive. Higher HOMA-IR scores were associated with progesterone receptor-negative BC in White women but not Black women. Overall, our results suggest that HOMA-IR contributes to the racial disparities in BC outcomes, particularly for women with HR-positive BCs.
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Neoplasias de la Mama , Resistencia a la Insulina , Femenino , Humanos , Neoplasias de la Mama/patología , Población Blanca , Negro o Afroamericano , Estudios Transversales , Pronóstico , Estudios de CohortesAsunto(s)
Neoplasias de la Mama/cirugía , Mastectomía Subcutánea , Pezones , Tratamientos Conservadores del Órgano , Contraindicaciones de los Procedimientos , Femenino , Humanos , Mamoplastia , Mastectomía Subcutánea/efectos adversos , Mastectomía Subcutánea/métodos , Mastectomía Subcutánea/normas , Ilustración Médica , Tratamientos Conservadores del Órgano/efectos adversos , Tratamientos Conservadores del Órgano/métodos , Tratamientos Conservadores del Órgano/normas , Satisfacción del Paciente , Selección de Paciente , Estudios Retrospectivos , Resultado del TratamientoRESUMEN
BACKGROUND: Accelerated partial breast irradiation (APBI) may be used to deliver radiation to the tumor bed post-lumpectomy in eligible patients with breast cancer. Patient and tumor characteristics as well as the lumpectomy technique can influence patient eligibility for APBI. This report describes a lumpectomy procedure and examines patient, tumor, and surgical characteristics from a prospective, multicenter study of electronic brachytherapy. METHODS: The study enrolled 65 patients of age 45-84 years with ductal carcinoma or ductal carcinoma in situ, and 44 patients, who met the inclusion and exclusion criteria, were treated with APBI using the Axxent® electronic brachytherapy system following lumpectomy. The prescription dose was 34 Gy in 10 fractions over 5 days. RESULTS: The lumpectomy technique as described herein varied by site and patient characteristics. The balloon applicator was implanted by the surgeon (91%) or a radiation oncologist (9%) during or up to 61 days post-lumpectomy (mean 22 days). A lateral approach was most commonly used (59%) for insertion of the applicator followed by an incision site approach in 27% of cases, a medial approach in 5%, and an inferior approach in 7%. A trocar was used during applicator insertion in 27% of cases. Local anesthetic, sedation, both or neither were administered in 45%, 2%, 41% and 11% of cases, respectively, during applicator placement. The prescription dose was delivered in 42 of 44 treated patients. CONCLUSIONS: Early stage breast cancer can be treated with breast conserving surgery and APBI using electronic brachytherapy. Treatment was well tolerated, and these early outcomes were similar to the early outcomes with iridium-based balloon brachytherapy.
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Braquiterapia/métodos , Neoplasias de la Mama/terapia , Carcinoma Ductal de Mama/terapia , Carcinoma Intraductal no Infiltrante/terapia , Mastectomía Segmentaria , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/radioterapia , Neoplasias de la Mama/cirugía , Carcinoma Ductal de Mama/radioterapia , Carcinoma Ductal de Mama/cirugía , Carcinoma Intraductal no Infiltrante/radioterapia , Carcinoma Intraductal no Infiltrante/cirugía , Femenino , Humanos , Persona de Mediana Edad , Estudios ProspectivosRESUMEN
Treating recurrent disease in the axilla is a challenging and complex clinical problem. Several reports in the literature suggest better outcomes with the combination of both surgery and radiation therapy than either modality alone. However, the available options for re-treatment are limited by the extent of disease at relapse, and the prior therapy that the patient has already received. The choice of re-irradiation using conventional external beam therapy is generally limited because of the risk of exceeding the radiation tolerance of the brachial plexus. In lieu of our concerns regarding excessive morbidity from re-irradiation with external radiation therapy when treating an axillary relapse, we applied intraoperative high-dose-rate brachytherapy (HDR-IORT) at the time of surgical resection +/- a modest dose of postoperative external beam radiation therapy. In this paper, we describe the feasibility of HDR-IORT technique in three patients presenting with recurrent disease in the axilla.
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Braquiterapia/métodos , Neoplasias de la Mama/radioterapia , Neoplasias de la Mama/cirugía , Adulto , Braquiterapia/instrumentación , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/patología , Terapia Combinada , Moduladores de los Receptores de Estrógeno/uso terapéutico , Terapia de Reemplazo de Estrógeno , Femenino , Humanos , Periodo Intraoperatorio , Mastectomía Segmentaria , Recurrencia Local de Neoplasia/radioterapia , Estadificación de NeoplasiasRESUMEN
INTRODUCTION: Although breast cancer incidence is higher among white women, black women are more likely to have aggressive tumors with less favorable histology, and to have a worse prognosis. Obesity and alcohol consumption have been identified as two modifiable risk factors for breast cancer, while physical activity may offer protection. Little however is known about the association of these factors with race on the severity of breast cancer. METHODS: Data collected as part of a large prospective study looking at insulin resistance and race among women with breast cancer was queried for patient characteristics, lifestyle factors and tumor characteristics. The association with Nottingham Prognostic Index (NPI) was assessed with different models using univariate and multivariate linear regression. RESULTS: Among 746 women in our cohort, 82% (nâ¯=â¯615) were white and 18% (nâ¯=â¯131) were black, mean age 58 years. Black patients were more likely to have high BMI (31.0 vs. 26.7, pâ¯<â¯0.0001), comorbidities (69% vs 55%, pâ¯=â¯0.01), self-reported poor diet (70% vs 42%, pâ¯<â¯0.001), be sedentary (56% vs 46%, pâ¯=â¯0.03) and were less likely to consume alcohol (8% vs 32%, pâ¯<â¯0.0001) compared to white patients. Overall, 137 (18%) of the patients had poorer prognosis (NPIâ¯>â¯4.4), which was significantly associated with younger age (55.6 vs 58.5 years, pâ¯=â¯0.02), black race (27% vs 15%, pâ¯=â¯0.001), triple negative cancer (15% vs 6%, pâ¯=â¯0.003), and poor diet (54% vs 45%, pâ¯=â¯0.046) compared to patients with better prognosis (NPIâ¯≤â¯4.4). On multivariate analysis, (model R2â¯=â¯0.12; pâ¯<â¯0.001), age (ßâ¯=â¯-0.011 per year, pâ¯=â¯0.002), healthy diet (ßâ¯=â¯-0.195, pâ¯=â¯0.02), and exercise (ßâ¯=â¯-0.004, pâ¯=â¯0.02) were associated with better prognosis, while black race (ßâ¯=â¯0.247, pâ¯=â¯0.02) and triple negative cancer (ßâ¯=â¯0.908, pâ¯<â¯0.0001) were associated with poor prognosis. Neither alcohol use nor BMI was significantly associated with NPI. CONCLUSION: Among modifiable risk factors, diet and exercise are associated with NPI. Unmodifiable factors including race and biologic subtype remain the most important determinants of prognosis.
Asunto(s)
Negro o Afroamericano , Neoplasias de la Mama/etnología , Neoplasias de la Mama/patología , Población Blanca , Anciano , Consumo de Bebidas Alcohólicas , Índice de Masa Corporal , Neoplasias de la Mama/etiología , Estudios de Cohortes , Dieta , Ejercicio Físico , Femenino , Conductas Relacionadas con la Salud , Humanos , Resistencia a la Insulina , Estilo de Vida , Persona de Mediana Edad , Pronóstico , Factores de RiesgoRESUMEN
Breast cancer is the most frequently diagnosed malignancy among American women. It is the second most common cause of cancer death. Genetic analysis using comparative genetic hybridization (CGH) has shown evidence that the majority of breast cancers, approximately 85%, begin in the ductal epithelium with normal cells progressing to atypia and finally to carcinoma. Mammary ductoscopy, also referred to as the intraductal approach, is a new tool that allows direct visualization of the breast ductal system. It enables one to sample the ductal epithelium and may allow identification of early changes cytologically as well as potentially play an important role in aiding surgical excision. This may aid in detection of breast masses long before they are palpable or visible via mammography. Mammary ductoscopy may have a role in the evaluation of women with nipple discharge, high-risk women, or limiting the amount of tissue removed in breast conservation surgery for cancer.
Asunto(s)
Neoplasias de la Mama/diagnóstico , Endoscopía/métodos , Glándulas Mamarias Humanas/patología , Neoplasias de la Mama/cirugía , Femenino , Tecnología de Fibra Óptica , Humanos , Glándulas Mamarias Humanas/metabolismo , Glándulas Mamarias Humanas/cirugíaRESUMEN
BACKGROUND: Most breast cancers originate in the ductal epithelium with normal cells progressing to atypia and finally to carcinoma. Ductoscopy enables one to visualize and sample the ductal epithelium and therefore identify early changes cytologically. This report describes our experience with mammary ductoscopy as a tool for evaluation of nipple discharge at Beth Israel Medical Center. METHODS: A prospective review of all patients who have undergone ductoscopy for evaluation of persistent nipple discharge was performed. The Acueity ductoscopy system with .9-mm scope and a video monitor with x60 magnification were used. Brush biopsy samples and lavage fluid were obtained from some patients and were sent for cytologic analysis. A subset of patients underwent ductoscopically guided duct excision. RESULTS: Ninety-three patients underwent ductoscopic evaluation of 110 ducts. Of these, 67 patients had abnormal findings and therefore underwent ductoscopically guided duct excision. The remaining 26 patients (28%) had normal ductoscopic examinations. The depth at which intraductal abnormalities were visualized was from 3 to 8 cm with an average of 4.4 cm for cancer cases and from 1 to 10 cm with an average of 4.5 cm for papillomas. Forty-two patients were diagnosed with papilloma/papillomatosis, six patients were diagnosed with atypical papilloma/atypical ductal hyperplasia/atypical lobular hyperplasia, and six patients were diagnosed with cancer. Of the six patients diagnosed with cancer, 67% had normal breast imaging, and other than nipple discharge, 67% had normal breast examinations. CONCLUSION: Mammary ductoscopy is a useful tool in the evaluation of patients with nipple discharge. Although the most common cause of nipple discharge is an intraductal papilloma, nipple discharge can be the presenting symptom for cancer. Our experience revealed a papilloma rate of 45% (42 of 93), cancer rate of 6.5% (6 of 93), and an atypia rate of 6.5% (6 of 93) among the patients with nipple discharge. Mammary ductoscopy allows for accurate visualization, analysis, and excision of intraductal abnormalities. Many deeper intraductal abnormalities could be missed by blind surgical excision.
Asunto(s)
Neoplasias de la Mama/diagnóstico , Endoscopía , Glándulas Mamarias Humanas/patología , Pezones/metabolismo , Adulto , Anciano , Carcinoma Ductal de Mama/diagnóstico , Carcinoma Intraductal no Infiltrante/diagnóstico , Exudados y Transudados , Femenino , Humanos , Persona de Mediana Edad , Papiloma Intraductal/diagnóstico , Valor Predictivo de las Pruebas , Estudios ProspectivosRESUMEN
BACKGROUND: Standard axillary node dissection has the potential to cause a significant amount of morbidity. Sentinel lymph node biopsy has considerably decreased this rate of morbidity; however, data recently presented, based on ACOSOG Z-10, suggest that even this less invasive technique can have a lymphedema rate as high as 7%. The transmammary axillary lymph node evaluation procedure (TANE) removes the sentinel node via the breast incision, thus eliminating the axillary incision. This may decrease morbidity, including lymphedema, dyesthesias, pain, and loss of range of motion, and it will also improve cosmetic outcome. METHODS: This is a prospective observational study to determine if it is feasible to perform both the partial mastectomy and sentinel lymph node biopsy via a single incision. All patients were consented for a partial mastectomy and sentinel lymph node biopsy. The partial mastectomy was performed in the standard fashion. The sentinel lymph node biopsy was performed via the same incision either before or after the breast specimen was removed. The sentinel lymph node biopsy was then performed in the standard fashion. RESULTS: The TANE method was attempted in 44 patients from June 2005 to March 2006 and was successful in 43, for a rate of 97.73%. The mean age of the patients was 57.6 years, with a range of 34 to 82 years. The average tumor size was 1.57 cm, with a range of 0.4 cm to 4.5 cm. The TANE procedure was performed most often in patients with tumors located in the upper outer quadrant (79.54%). There were no perioperative complications. CONCLUSION: Our prospective study showed that this is a feasible procedure for sentinel lymph node biopsy and axillary lymph node dissection. The number of sentinel and axillary nodes obtained was within the standard published norms. Our technical success rate was 97.33%, and we did not have any perioperative complications. In this pilot study, there was the cosmetic benefit of only 1 incision. Future studies will examine if the TANE procedure can objectively decrease morbidity compared to a separate axillary incision.