Oncological Outcomes of Nipple-Sparing Mastectomy in an Unselected Population Evaluated in a Single Center / Desfechos oncológicos da mastectomia poupadora do complexo areolo-mamilar em uma população não selecionada avaliada em um único centro

Abstract Objective Nipple-sparing mastectomy (NSM) has been traditionally used in selected cases with tumor-to-nipple distance > 2 cm and negative frozen section of the base of the nipple. Recommending NSM in unselected populations remains controversial. The present study evaluated the oncological outcomes of patients submitted to NSM in an unselected population seen at a single center. Methods This retrospective cohort study included unselected patients with invasive carcinoma or ductal carcinoma in situ (DCIS) who underwent NSM in 2010 to 2020. The endpoints were locoregional recurrence, disease-free survival (DFS), and overall survival (OS), irrespective of tumor size or tumor-to-nipple distance. Results Seventy-six patients (mean age 46.1 years) (58 invasive carcinomas/18 DCIS) were included. The most invasive carcinomas were hormone-positive (60%) (HER2 overexpression: 24%; triple-negative: 16%), while 39% of DCIS were high-grade. Invasive carcinomas were T2 in 66% of cases, with axillary metastases in 38%. Surgical margins were all negative. All patients with invasive carcinoma received systemic treatment and 38% underwent radiotherapy. After a mean of 34.8 months, 3 patients with invasive carcinoma (5.1%) and 1 with DCIS (5.5%) had local recurrence. Two patients had distant metastasis and died during follow-up. The 5-year OS and DFS rates for invasive carcinoma were 98% and 83%, respectively. Conclusion In unselected cases, the 5-year oncological outcomes following NSM were found to be acceptable and comparable to previous reports. Further studies are required.

Resumo Objetivo A mastectomia poupadora do complexo areolo-mamilar (MPM) tem sido tradicionalmente utilizada em casos selecionados com distância tumor-mamilo > 2 cm e biópsia de congelação da base do mamilo negativa. Recomendar MPM em populações não selecionadas continua controverso. Este estudo avaliou os resultados oncológicos de pacientes submetidas à MPM em uma população não selecionada atendida em um único centro. Métodos Coorte retrospectivo incluindo pacientes não selecionadas com carcinoma invasivo ou carcinoma ductal in situ (CDIS) submetidas à MPM entre 2010 e 2020. Os desfechos incluíram: recorrência locorregional, sobrevida livre de doença (SLD) e sobrevida global (SG), independentemente do tamanho do tumor ou da distância tumor-mamilo. Resultados Setenta e seis pacientes (média: 46,1 anos de idade) (58 carcinomas invasivos/18 CDIS) foram incluídas. A maioria dos carcinomas invasivos era hormônio-positivo (60%) (superexpressão de HER2: 24%; triplo-negativo: 16%), enquanto 39% dos CDIS eram de alto grau histológico. Os carcinomas invasivos foram T2 em 66% dos casos, com metástases axilares em 38%. As margens cirúrgicas foram todas negativas. Todas as pacientes com carcinoma invasivo receberam tratamento sistêmico e 38% receberam radioterapia. Após um período médio de 34,8 meses, 3 pacientes com carcinoma invasivo (5,1%) e 1 com CDIS (5,5%) apresentaram recidiva local. Durante o acompanhamento, duas pacientes tiveram metástase à distância e vieram a óbito. As taxas de SG e SLD aos 5 anos para carcinoma invasivo foram de 98% e 83%, respectivamente. Conclusão Em casos não selecionados, os resultados oncológicos de 5 anos após MPM foram considerados aceitáveis e comparáveis a resultados anteriores. Estudos adicionais são necessários.

Salvage Nipple-sparing Mastectomy for Patients with Breast Cancer Recurrence: A Case Series of Brazilian Patients / Mastectomia preservadora de mamilo para pacientes com recidiva de câncer de mama: Uma série de casos de pacientes brasileiras

Abstract Objective Few studies analyzed the safety of salvage nipple-sparing mastectomy (NSM) for local relapse treatment. We evaluated the outcomes of patients with indications for mastectomy who chose to undergo NSM for ipsilateral breast tumor recurrence (IBTR). Methods Between January 2001 and December 2018, we evaluated 24 women who underwent NSM for local relapse after conservative surgery. Results Thepatientswere followedupfor amean time of132months since thefirst surgery. After the NSM, 5 (20.8%) patients were diagnosed with local recurrence and only 1 (4.2%) patient died. The patients presented 4.8% (2) of partial and 2.4% (1) of total nipple necrosis. Conclusion In this long-term follow-up since the first surgery, we observed low rates of complication and good survival, although associated with high local recurrence in patients diagnosed with IBTR undergoing NSM as salvage surgery.We demonstrated that NSMmay be considered after IBTR for patients who did not want to undergo total mastectomy.

Resumo Objetivo Há poucos estudos sobre a segurança de se realizar adenomastectomia (nipple-sparing mastectomy, NSM, em inglês) para tratamento de recidiva local. O objetivo deste estudo foi avaliar os resultados de pacientes com indicação para mastectomia que optaram por se submeter a NSM para o tratamento de recorrência local. Métodos Foram analisadas 24 pacientes submetidas a NSM para tratamento de recidiva local após tratamento conservador entre janeiro de 2001 e dezembro de 2018. Resultados As pacientes foramacompanhadas por um períodomédio de 132meses a partir da primeira cirurgia. Após a NSM, 5 (20,8%) pacientes foram diagnosticadas com recorrência local, e apenas 1 paciente foi a óbito. As pacientes apresentaram 4,8% de necrose parcial e 2,4% de necrose total do mamilo. Conclusão Em um longo período de acompanhamento desde a primeira cirurgia, foram observadas baixas taxas de complicação pós-operatória e boa sobrevida, porém, associadas comuma alta taxa de recorrência local em pacientes submetidas a NSM para tratamento de recidiva local após cirurgia conservadora. Neste estudo, demonstrou-se que a NSM pode ser considerada uma opção cirúrgica para pacientes que não querem se submeter a mastectomia total.

Musculoskeletal, cardiorespiratory, anthropometric and sensorial changes following breast cancer surgery / Alterações musculoesquelética, cardiorrespiratória, antropométrica e sensorial após cirurgia de câncer de mama

Abstract Introduction: Breast cancer is the second most common malignant neoplasm in women. Surgical intervention is one of the recommended treatments, which can lead to significant physical and sensorial sequelae. Objective: To analyze the musculoskeletal, cardiorespiratory, anthropometric and sensorial functions of women who underwent breast cancer surgery. Methods: An observational, cross-sectional study with women who underwent surgical resection of breast tumors at Amaral Carvalho, a reference hospital in the countryside of the São Paulo State, Jaú/SP, Brazil. Three assessments were obtained: pre-surgery (Ass1), one day after the surgery (Ass2) and 15 days after surgery (Ass3). Sociodemographic and gynecological data were collected, and anthropometric, cardiovascular, dermal sensitivity, range of motion (ROM) of the upper limbs, peripheral oxygen saturation (SpO2), inspiratory muscle strength (PImax), peak expiratory flow (PEF) and thoraco-abdominal mobility assessments were performed. Data were evaluated by repeated measures ANOVA and Wilcoxon statistical test with a Bonferroni correction (p < 0.05). Results: Eighteen women, with a mean age of 57.44 ± 9.35 years, mainly with the left side affected (61.1%) and lymphadenectomy performed in 50% of the cases. Differences were found in systolic and diastolic blood pressure, PEF and SpO2, axillary ROM index (Ass1>Ass2), PImax (Ass3>Ass2), perimetry (Ass2>Ass3), ROM in all axes of shoulder motion and wrist flexion (Ass2<Ass1), and sensitivity alteration close to the surgical wound (Ass3>Ass2 and Ass1). Conclusion: The surgery for breast cancer excision resulted in hemodynamic and respiratory changes, especially on the first day after the procedure, returning to baseline values approximately 15 days later.

Resumo Introdução: O câncer de mama é a segunda neoplasia maligna mais encontrada entre as mulheres, sendo a intervenção cirúrgica um dos tratamentos preconizados, o que pode acarretar sequelas físicas e sensoriais importantes. Objetivo: Analisar as funções musculoes-queléticas, cardiorrespiratórias, antropométricas e sensoriais de mulheres submetidas ao procedimento cirúrgico para neoplasia mamária. Métodos: Estudo observacional e transversal com mulheres que realizaram procedimento cirúrgico para ressecção de neoplasia mamária assistidas no interior paulista, Jaú/SP. Foram realizadas três avaliações: pré-cirurgia (AV1), um dia (AV2) e 15 dias após a cirurgia (AV3). Foram coletadas informações sociodemográficas e ginecológicas e realizadas avaliações antropométrica, cardiovascular, sensibilidade dérmica, amplitude de movimento (ADM) dos membros superiores, saturação periférica de oxigênio (SpO2), força muscular inspiratória (PImax), pico de fluxo expiratório (PFE) e mobilidade toracoabdominal. Os dados foram avaliados pelo teste estatístico ANOVA de medidas repetidas e Wilcoxon com correção de Bonferroni (p < 0,05). Resultados: Dezoito mulheres, de 57,44 ± 9,35 anos, tiveram o lado esquerdo mais acometido (61,1%) e a linfonodectomia foi realizada em 50% dos casos. Houve diferenças nas variáveis pressão arterial sistólica e diastólica, PFE e SpO2, índice de amplitude axilar (AV1>AV2), PImax (AV3>AV2), perimetria (AV2>AV3), ADM em todos os eixos de movimento do ombro e em flexão de punho (AV2<AV1) e alteração de sensibilidade próxima à cicatriz (AV3>AV2 e AV1). Conclusão: A cirurgia para exerese de neoplasia mamária acarretou alterações principalmente hemodinâmicas e respiratórias, sobremaneira no primeiro dia após a cirurgia, retornando aos valores basais aproxi-madamente 15 dias após o procedimento.

Revisão de 5 anos (2015-2019) da reconstrução aloplástica imediata no Centro Hospitalar e Universitário de Coimbra, Portugal / 5-year revision (2015-2019) of immediate alloplastic reconstruction in Hospital and University Center of Coimbra, Portugal

■ RESUMO Introdução: Como o câncer de mama é a doença maligna mais prevalente em todo o mundo, o tratamento conservador é de extrema importância. No entanto, em muitos casos, a mastectomia continua sendo o procedimento cirúrgico indicado e, como qualquer outra amputação, leva um fardo significativo para essas pacientes. No caso da mastectomia, a reconstrução imediata da mama é o tratamento padrão. A reconstrução aloplástica continua sendo o tipo mais amplamente realizado de reconstrução mamária imediata. Métodos: Neste artigo, os autores apresentam uma série de 105 casos de reconstrução aloplástica imediata em 5 anos de 2015 a 2019 no Centro Hospitalar e Universitário de Coimbra, Portugal. Inclui mastectomias curativas e redutoras de risco realizadas por ginecologistas oncológicos. As opções de reconstrução oferecidas pela equipe de reconstrução plástica incluíram tanto a reconstrução direta no implante quanto a reconstrução em dois estágios com o uso de expansores de tecido. Resultados: Dados sobre a doença oncológica, tipo de mastectomia, critérios de seleção das pacientes e resultados pós-operatórios imediato e tardio com diferentes técnicas de reconstrução imediata foram coletados, analisados e comparados com a literatura. Em nosso estudo, o índice de massa corporal foi o único preditor mais significativo de complicações e seu impacto foi estatisticamente significativo. Conclusão: Os resultados obtidos representam uma etapa essencial para a melhoria da qualidade da assistência à mulher em reconstrução mamária.

■ ABSTRACT Introduction: With breast cancer being the most prevalent malignancy worldwide, conservative treatment is of tremendous importance. Nevertheless, in many cases, mastectomy remains the indicated surgical procedure, and like any other amputation, it carries a significant burden on those patients. In the case of mastectomy, immediate breast reconstruction is the standard of care. Alloplastic reconstruction remains the most widely performed type of immediate breast reconstruction. Methods: In this article, the authors present a series of 105 cases of immediate alloplastic reconstruction in 5 years from 2015 to 2019 in Centro Hospitalar e Universitário de Coimbra, Portugal. It includes curative and risk-reducing mastectomies performed by oncologic gynecologists. The reconstruction options offered by the plastic reconstructive team included both direct-to-implant reconstruction and two-stage reconstruction with the use of tissue expanders. Results: Data regarding the oncologic disease, type of mastectomy, patient selection criteria and immediate and late postoperative outcomes with different techniques of immediate reconstruction were collected, analyzed, and compared to literature. In our study, body mass index was the single most significant predictor of complications and, its impact was statistically significant. Conclusion: The results obtained represent an essential step to improving care quality for women undergoing breast reconstruction.

Enfermedad de Paget mamaria: revisión de la literatura / Paget's disease of the breast: review of the literature

Resumen La enfermedad de Paget mamaria es una neoplasia infrecuente de la mama, muchas veces de difícil diagnóstico y mal pronóstico. El objetivo es revisar los aspectos fundamentales clínicos, diagnósticos, así como los avances más recientes en su tratamiento. Se realizó una búsqueda bibliográfica a través de PUBMED, GOOGLE SCHOLAR y UPTODATE, de los últimos 20 años. Fueron seleccionados e incluidos en la revisión 38 artículos. La enfermedad de Paget mamaria es una neoplasia maligna infrecuente del complejo areola pezón de características inflamatorias al examen físico, asociado en un 85% de los casos a un cáncer de mama subyacente, en el 50% de los casos no identificable al examen físico, de difícil diagnóstico, cuya sospecha clínica se confirma con imágenes, biopsia e inmunohistoquímica. El tratamiento es mastectomía versus cirugía conservadora y radioterapia. Un mal enfoque clínico, retrasa el diagnóstico y empeora la sobrevida. MÉD.UIS.2021;34(1): 45-53.

Abstract Paget's disease of the breast is an uncommon neoplasm of the breast, many times difficult to diagnose and of poor prognosis. The objective is to review the fundamental clinical and diagnostic aspects, as well as the most recent advances in its treatment. A bibliographic search of the last 20 years was carried out through PUBMED, GOOGLE SCHOLAR and UPTODATE. 38 articles were selected and included in the review. Mammary paget disease is a rare malignant neoplasm of the nipple areola complex with inflammatory features on physical examination, associated in 85% of cases with underlying breast cancer, in 50% of cases not recognizable on physical exam, difficult to diagnose, whose clinical suspicion is confirmed by imaging, biopsy and immunohistochemistry. Treatment is mastectomy versus conservative surgery and radiotherapy. A poor clinical approach delays the diagnosis and worsens survival rate. MÉD.UIS.2021;34(1): 45-53.

Mamoplastia redutora modificada para otimização de abordagem oncológica: resultados iniciais e revisão da literatura / Modified reduction mammoplasty for optimization of oncological approach: initial results and literature review

Introdução: O câncer de mama é a segunda neoplasia mais comum entre as mulheres. A constante evolução científica tem permitido abordagens cirúrgicas cada vez menos invasivas, diminuindo a morbidade relacionada ao tratamento sem prejuízo oncológico. O objetivo deste artigo é mostrar os resultados cirúrgicos e a versatilidade da mamoplastia redutora com a técnica de Pitanguy modificada, para otimização da reconstrução imediata associada à cirurgia oncológica. Métodos: Apresentamos os casos de três pacientes submetidas à técnica proposta. A marcação da mama com diagnóstico de câncer é planejada seguindo os princípios da mamoplastia redutora descrita por Pitanguy. Porém, o triângulo de ressecção inferolateral é transposto para a área supratumoral. Ele pode ser posicionado da junção dos quadrantes laterais (JQL) até o quadrante superolateral (QSL) da mama oncológica. Resultados: As três pacientes foram submetidas à técnica descrita associada à mamoplastia de simetrização contralateral com a técnica de Pitanguy. Todas realizaram radioterapia adjuvante, associada ou não à quimioterapia. Duas pacientes evoluíram sem intercorrências e uma apresentou pequena necrose de 1x1cm na junção inferior dos retalhos na mama com câncer, que foi tratada de maneira conservadora sem atrasar o tratamento adjuvante. Todas seguem satisfeitas com o resultado estético. Conclusão: A técnica descrita mostrou-se uma boa alternativa para tumores localizados entre a JQL e o QSL da mama oncológica, proporcionando ressecções mais amplas e dessa forma ampliando a indicação de cirurgia conservadora e reduzindo a necessidade de cirurgia radical, com melhores resultados estéticos sem prejuízo do desfecho oncológico.

Introduction: Breast cancer is the second most common cancer among women. Constant scientific evolution has allowed increasingly less invasive surgical approaches, reducing treatment-related morbidity without cancer damage. The objective of this article is to show the surgical results and the versatility of reduction mammoplasty with the modified Pitanguy technique to optimize the immediate reconstruction associated with cancer surgery. Methods: We present the cases of three patients who underwent the proposed technique. Marking of the breast diagnosed with cancer is planned following the principles of reduction mammoplasty described by Pitanguy. However, the inferolateral resection triangle is transposed into the supratumoral area. It can be placed from the junction of the lateral quadrants (JLQ) to the superolateral quadrant (SLQ) of the oncological breast. Results: the three patients underwent the described technique associated with contralateral symmetrization mammoplasty with the Pitanguy technique. All were submitted to adjuvant radiation therapy, associated or not with chemotherapy. Two patients progressed without incident and one had a small necrosis of 1x1 cm at the flaps lower junction in the breast with cancer, which was treated conservatively without delaying the adjuvant treatment. All were satisfied with the aesthetic result. Conclusion: The described technique proved to be a good alternative for tumors located between the JLQ and the SLQ of the oncological breast. It provides broader resections and thus expands the indication for conservative surgery and reduces the need for radical surgery, with better aesthetic results without impairment of the cancer outcome

Association of menopausal status, expression of progesterone receptor and ki67 to the clinical response to neoadjuvant chemotherapy in luminal breast cancer / Associação de status menopausal, expressão de receptor de progesterona e de Ki67 à resposta clínica à quimioterapia neoadjuvante no câncer luminal de mama

Abstract Objective To identify the biomarkers of response to neoadjuvant chemotherapy in early luminal breast cancer. Methods A cross-sectional study that included all patients with early or locallyadvanced luminal breast cancer submitted to neoadjuvant chemotherapy between 2013 and 2014. Demographic, clinic and pathologic data were retrieved from patient records. The expressions of the estrogen receptor (ER), the progesterone receptor (PR), and Ki67 were analyzed by immunohistochemistry (IHC). The status of the human epidermal growth factor receptor 2 (HER2) was evaluated by IHC and fluorescent in situ hybridization (FISH). Independent predictors of clinic and pathologic response were evaluated by stepwise logistic regression models and receiver operating characteristic (ROC) curve analysis. Results Out of 298 patients identified, 115 were included in the analysis. Clinical complete response (cCR) was observed in 43.4% of the patients (49/113), and pathologic complete response (pCR) was observed in 7.1% (8/115) of the patients. The independent predictors of cCR were premenopausal status (p < 0.001), low PR expression (≤ 50% versus > 50%; p = 0.048), and Ki67 expression ≥ 14% (versus < 14%; p = 0.01). Patients with cCR were more commonly submitted to breast conserving surgery (34.7% versus 7.8%; p < 0.001). Increasing cut-off points for Ki67 expression were associated with an increase in specificity and a decrease in sensitivity to identify patients with cCR. Conclusion Premenopausal status, lower PR expression and higher Ki67 expression were associated with a higher rate of cCR to neoadjuvant chemotherapy in luminal breast cancer.

Resumo Objetivo Identificar biomarcadores de resposta à quimioterapia neoadjuvante em câncer luminal de mama. Métodos Estudo transversal em que foram incluídas todas as pacientes com câncer luminal de mama em estádio inicial ou localmente avançado que foram submetidas a quimioterapia neoadjuvante nos anos de 2013 e 2014. Dados demográficos, clínicos e patológicos foram obtidos de prontuários médicos. As expressões de receptor de estrogênio (RE), de receptor de progesterona (RP), e de Ki67 foram avaliadas por imuno-histoquímica (IHQ). A expressão do receptor tipo 2 do fator de crescimento epidérmico humano (human epidermal growth factor receptor 2, HER2) foi avaliada por IHQ e hibridização in situ por imunofluorescência (HISI). Análises de regressão logística e de curva de característica de operação do receptor (COR) foram usadas para investigar fatores preditivos independentes de resposta clínica e patológica. Resultados De 298 pacientes identificadas, 115 foram incluídas na análise. Resposta clínica completa (RCc) foi observada em 43.4% das pacientes (49/113), e resposta patológica completa (RPc), em 7.1% (8/115). Os fatores preditivos independentes de RCc foram status menopausal (p < 0.001), baixa expressão de RP (≤ 50% versus > 50%; p = 0.048), e expressão de Ki67 ≥ 14% (versus < 14%; p = 0.01). Pacientes com RCc apresentaram maior probabilidade de serem submetidas a cirurgia conservadora da mama (34.7% versus 7.8%; p < 0.001). Aumento no ponto de corte para expressão de Ki67 foi associado a aumento da especificidade e redução da sensibilidade na identificação de pacientes com RCc. Conclusão Status premenopausal, baixa expressão de RP e maior expressão de Ki67 estiveram associados a maior taxa de RCc à quimioterapia neoadjuvante no câncer luminal de mama.

Trends in breast cancer surgery in private patients under opportunistic screening / Tendências na cirurgia de câncer de mama em pacientes de um serviço privado sob rastreio oportunístico

Objective: This study aims to determine the evolution of staging and surgical treatment in patients with breast cancer in a private clinic over the last 40 years. Methods: Retrospective descriptive observational study, through statistical analysis of the medical records of 2105 patients treated at a private clinic in Curitiba, Paraná, between 1977 and 2017. Results: Data analyzed from 2,105 patients diagnosed with breast cancer revealed that, over time, radical surgeries predominated when compared to conservative ones. However, when analyzed proportionally over the years, it is possible to observe an inversion of the surgical modalities. It was demonstrated that from 1977 to 2017, there was a 273% increase in the number of conservative surgeries and a 45.5% decrease in mastectomies. In addition to this data, there was a decrease in the number of axillary emptying and, consequently, of positive sentinel lymph nodes. In addition, tumors diagnosed early (T1) have increased over the years. Conclusion: Patients had an early diagnosis of the disease, resulting in less invasive surgical treatments and, consequently, lower morbidity and mortality.

Objetivo: A pesquisa visa determinar a evolução do estadiamento e do tratamento cirúrgico em pacientes com câncer de mama em uma clínica privada, nos últimos 40 anos. Métodos: Estudo observacional descritivo retrospectivo, por meio da análise estatística dos prontuários de 2105 pacientes atendidas em clínica privada em Curitiba, Paraná, entre 1977 e 2017. Resultados: Dados analisados de 2.105 pacientes diagnosticadas com câncer de mama revelaram que, ao longo do tempo, as cirurgias radicais predominaram quando comparadas às cirurgias conservadoras. No entanto, quando analisadas proporcionalmente ao longo dos anos, é possível constatar uma inversão das modalidades cirúrgicas. Demonstrou-se que de 1977 a 2017, houve aumento de 273% do número das cirurgias conservadoras e queda de 45,5% das mastectomias. Associado a esse dado, notou-se diminuição do número de esvaziamento axilar e consequentemente de linfonodos sentinela positivos. Além disso, os tumores diagnosticados em fase inicial (T1) aumentaram ao longo dos anos. Conclusão: As pacientes tiveram um diagnóstico em estadiamento mais precoce da doença, proporcionando tratamentos cirúrgicos menos invasivos e, consequentemente, menor morbidade.

No Association of Positive Superficial and/or Deep Margins with Local Recurrence in Invasive Breast Cancer Treated with Breast-Conserving Surgery / Journal of the Korean Cancer Association, 대한암학회지

PURPOSE: We evaluated the effect of positive superficial and/or deep margin status on local recurrence (LR) in invasive breast cancer treated with breast-conserving surgery (BCS) followed by radiotherapy. MATERIALS AND METHODS: In total, 3,403 stage 1 and 2 invasive breast cancer patients treated with BCS followed by radiotherapy from January 2000 to December 2008 were included in this study. These patients were divided into three groups according to margin status: clear resection margin status for all sections (group 1, n=3,195); positive margin status in superficial and/or deep sections (group 2, n=121); and positive peripheral parenchymal margin regardless of superficial and/or deep margin involvement (group 3, n=87). The LR-free survival between these three groups was compared and the prognostic role of margin status was analyzed. RESULTS: Across all groups, age, tumor size, nodal status, and human epidermal growth factor receptor 2 status did not significantly differ. High grade, positive extensive intraductal component, hormone receptor positivity, hormone therapy received, and chemotherapy not received were more prevalent in groups 2 and 3 than in group 1. Five-year LR rates in groups 1, 2, and 3 were 1.9%, 1.7%, and 7.7%, respectively. Multivariate analysis revealed that group 3 was a significant predictor for LR (hazard ratio [HR], 4.78; p < 0.001), but that positive superficial and/or deep margin was not (HR, 0.66; p=0.57). CONCLUSION: Superficial and/or deep margin involvement following BCS is not an important predictor for LR.

Predicting Successful Conservative Surgery after Neoadjuvant Chemotherapy in Hormone Receptor-Positive, HER2-Negative Breast Cancer

PURPOSE: This study aimed to determine whether clinicopathological factors are potentially associated with successful breast-conserving surgery (BCS) after neoadjuvant chemotherapy (NAC) and develop a nomogram for predicting successful BCS candidates, focusing on those who are diagnosed with hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative tumors during the pre-NAC period. METHODS: The training cohort included 239 patients with an HR-positive, HER2-negative tumor (≥3 cm), and all of these patients had received NAC. Patients were excluded if they met any of the following criteria: diffuse, suspicious, malignant microcalcification (extent >4 cm); multicentric or multifocal breast cancer; inflammatory breast cancer; distant metastases at the time of diagnosis; excisional biopsy prior to NAC; and bilateral breast cancer. Multivariate logistic regression analysis was conducted to evaluate the possible predictors of BCS eligibility after NAC, and the regression model was used to develop the predicting nomogram. This nomogram was built using the training cohort (n=239) and was later validated with an independent validation cohort (n=123). RESULTS: Small tumor size (p < 0.001) at initial diagnosis, long distance from the nipple (p=0.002), high body mass index (p=0.001), and weak positivity for progesterone receptor (p=0.037) were found to be four independent predictors of an increased probability of BCS after NAC; further, these variables were used as covariates in developing the nomogram. For the training and validation cohorts, the areas under the receiver operating characteristic curve were 0.833 and 0.786, respectively; these values demonstrate the potential predictive power of this nomogram. CONCLUSION: This study established a new nomogram to predict successful BCS in patients with HR-positive, HER2-negative breast cancer. Given that chemotherapy is an option with unreliable outcomes for this subtype, this nomogram may be used to select patients for NAC followed by successful BCS.

Clinical Significance of Non-Mass-Like Enhancement of Preoperative Magnetic Resonance Imaging in Breast Cancer Considering Breast-Conserving Surgery

PURPOSE: The purpose of this study was to investigate the significance of non-mass enhancement (NME) findings on preoperative breast magnetic resonance imaging (MRI) when invasive breast cancer patients with single lesions underwent breast-conserving surgery (BCS). METHODS: We reviewed the preoperative MRI findings of 252 patients who underwent BCS from January 2014 to September 2016. Based on the MRI findings, we divided the patients into two groups, those who did and did not have NME, and we retrospectively analyzed the clinical outcomes of the two groups. RESULTS: The NME group had 57 patients, and the no-NME group had 195 patients. The incidence of in situ lesions was higher in the NME group than in the no-NME group (p<0.001). Additionally, the positive resection margin rate on frozen biopsy was higher in the NME group than in the no-NME group (p=0.002). CONCLUSION: When preoperative MRI had NME findings, in situ lesions were more likely to accompany invasive breast cancer lesions, and the positive resection margin rate for frozen biopsy during BCS was high. Therefore, in these cases, the lesion should be excised more widely when BCS is performed, or frozen biopsy for resection margin during BCS should be performed if possible.

LOCAL RE-OPERATION AND RECURRENCE IN ONCOPLASTIC BREAST SURGERY / Reoperação e recidiva local em cirurgia oncoplástica mamária

Introduction: In addition to a surgical option, the oncoplastic surgery (OP) is a new philosophy in the mammary oncologic therapy, since it combines concepts of oncologic surgery and plastic surgery. There was a concern that plastic surgery techniques would compromise the oncologic radicalism, leading to an increased risk of tumor recurrence and damage to the patients' survival. The main purpose of the breast conservative surgery (BCS) is to obtain disease-free surgical margins, with a great esthetic-functional result. However, since the advent of this approach, the search for negative margins has been a problem. Despite the efforts to avoid compromised margins, they occur in 20 to 40% of the cases in the traditional BCS, and in many cases leading to the need of reexcision or even to mastectomy. Objective and method: In the analysis of recent studies, the OP role as a reduction factor of new surgeries and local recurrence is questioned. The aim of this paper is to analyze it based on literature review. Conclusion: According to recent studies, the OP became a safe oncological surgical technique that improves both the esthetic result and the disease local control, decreasing the compromised margins with impact on the mitigation of new surgeries rate.

Introdução: A cirurgia oncoplástica (OP) além de opção cirúrgica é uma nova filosofia no tratamento oncológico mamário, pois combina os princípios da cirurgia oncológica com os da cirurgia plástica. Existia um temor de que as técnicas de mamoplastias redutoras pudessem comprometer a radicalidade oncológica, levando a um risco aumentado para recidivas tumorais e prejuízo na sobrevida das pacientes. O objetivo primário da cirurgia conservadora de mama (CC) é obter margens cirúrgicas livres de doença, com bom resultado estético-funcional. Entretanto, desde o advento dessa abordagem, a busca por margens negativas tem sido problemática. Pois, apesar do esforço para se evitar margens comprometidas, elas ocorrem em 20 a 40% dos casos na CC tradicional, levando, em muitas situações, à necessidade de reexcisão ou até mesmo mastectomia. Objetivo e método: Analisando estudos recentes, questiona-se o papel da OP como um fator redutor de reoperações e recidiva local. O objetivo desse artigo é fazer uma discussão embasada em revisão da literatura. Conclusão: Conforme estudos recentes, a OP consagrou-se como técnica cirúrgica oncologicamente segura, com melhora tanto no resultado estético como no controle local da doença, diminuindo margens comprometidas e impactando na atenuação da taxa de reoperações.

The comparative analysis of paracentesis and segment resection therapy in patients with early plasma cell mastiffs / 实用医学杂志

Objective To investigate the recurrence and satisfaction of paracentesis and segment resection on patients with early plasma cell mastitis,and to choose a more effective and cost-effective treatment.Methods Eighty-nine patients with early plasma cell mastitis received paracentesis in the treatment group and 101 cases received segment resection therapy in the comparison group.The recurrence and satisfaction of patients with early plasma cell mastitis in the two groups were compared.Results (1) The recurrence rates of patients with early plasma cell mastitis received paracentesis or segment resection were 29.21％ and 21.78％,without significant difference (x2 =5.437;P =0.285).(2) No significant differences in pain degree and time of therapy Were observed (P =0.323;P =0.102),but obvious difference in aesthetic measure was found between two groups (P =0.01).Conclusion Ultrasound guided puncture is used to treat patients with early plasma cell mastitis resulted in the therapeutic effect of segmental excision and better patient satisfaction,which has important significance and clinical promotion value for early plasma cell mastitis treatment.

Surgical excision of the breast giant fibroadenoma under regional anesthesia by Pecs II and internal intercostal plane block: a case report and brief technical description: a case report / 대한마취과학회지

A 22-years-old female patient at 171 cm and 67 kg visited the Department of Breast Surgery of the hospital with a mass accompanied with pain on the left side breast as chief complaints. Since physical examination revealed a suspected huge mass, breast surgeon decided to perform surgical excision and requested anesthesia to our department. Surgery of breast tumor is often under local anesthesia. However, in case of big size tumor, surgery is usually performed under general anesthesia. The patient feared general anesthesia. Unlike abdominal surgery, there is no need to control visceral pain for breast and anterior thoracic wall surgery. Therefore, we decided to perform resection under regional anesthesia. Herein, we report a successful anesthetic and pain management of the patient undergoing excision of a huge breast fibroadenoma under regional anesthesia using Pecs II and internal intercostal plane block.

The Usefulness of Intraoperative Circumferential Frozen-Section Analysis of Lumpectomy Margins in Breast-Conserving Surgery / 한국유방암학회지

PURPOSE: Intraoperative frozen-section analysis of the lumpect-omy margin during breast-conserving surgery (BCS) is an excellent method in obtaining a clear resection margin. This study aimed to investigate the usefulness of intraoperative circumferential frozen-section analysis (IOCFS) of lumpectomy margin during BCS for breast cancer, and to find factors that increase the conversion into mastectomy. METHODS: From 2007 to 2011, 509 patients with breast cancer underwent IOCFS during BCS. The outer surfaces of the shaved lumpectomy margins were evaluated. A negative margin was defined as no ink on the tumor. All margins were evaluated using the permanent section analysis. RESULTS: Among the 509 patients, 437 (85.9%) underwent BCS and 72 (14.1%) finally underwent mastectomy. Of the 483 pathologically confirmed patients, 338 (70.0%) were true-negative, 24 (5.0%) false-negative, 120 (24.8%) true-positive, and 1 (0.2%) false-positive. Twenty-four patients (4.7%) among total 509 patients had undetermined margins as either atypical ductal hyperplasia or ductal carcinoma in situ in the first IOCFS. The IOCFS has an accuracy of 94.8% with 83% sensitivity, 99.7% specificity, 93.4% negative predictive value, and 99.2% positive predictive value. Sixty-three cases (12.4%) were converted to mastectomy, the first intraoperatively. Of the 446 (87.6%) patients who successfully underwent BCS, 64 patients received additional excisions and 32 were reoperated to achieve clear margin (reoperation rate, 6.3%). Twenty-three of the reoperated patients underwent re-excisions using the second intraoperative frozen section analysis, and achieved BCS. Nine cases were additionally converted to mastectomy. No significant differences in age, stage, and biological factors were found between the BCS and mastectomy cases. Factors such as invasive lobular carcinoma, multiple tumors, large tumor, and multiple excisions increased the conversion to mastectomy. CONCLUSION: The IOCFS analysis during BCS is useful in evaluating lumpectomy margins and preventing reoperation.

In vivo dosimetry and acute toxicity in breast cancer patients undergoing intraoperative radiotherapy as boost

PURPOSE: To report the results of a correlation analysis of skin dose assessed by in vivo dosimetry and the incidence of acute toxicity. This is a phase 2 trial evaluating the feasibility of intraoperative radiotherapy (IORT) as a boost for breast cancer patients. MATERIALS AND METHODS: Eligible patients were treated with IORT of 20 Gy followed by whole breast irradiation (WBI) of 46 Gy. A total of 55 patients with a minimum follow-up of 1 month after WBI were evaluated. Optically stimulated luminescence dosimeter (OSLD) detected radiation dose delivered to the skin during IORT. Acute toxicity was recorded according to the Common Terminology Criteria for Adverse Events v4.0. Clinical parameters were correlated with seroma formation and maximum skin dose. RESULTS: Median follow-up after IORT was 25.9 weeks (range, 12.7 to 50.3 weeks). Prior to WBI, only one patient developed acute toxicity. Following WBI, 30 patients experienced grade 1 skin toxicity and three patients had grade 2 skin toxicity. Skin dose during IORT exceeded 5 Gy in two patients: with grade 2 complications around the surgical scar in one patient who received 8.42 Gy. Breast volume on preoperative images (p = 0.001), ratio of applicator diameter and breast volume (p = 0.002), and distance between skin and tumor (p = 0.003) showed significant correlations with maximum skin dose. CONCLUSIONS: IORT as a boost was well-tolerated among Korean women without severe acute complication. In vivo dosimetry with OSLD can help ensure safe delivery of IORT as a boost.

Re-Excision Rate in Breast Conservation Surgery after Neoadjuvant Chemotherapy

PURPOSE: The purpose of this study was to compare the success rate of re-excision and breast-conserving surgery (BCS) between patients who received neoadjuvant chemotherapy and those who did not. METHODS: In this retrospective cohort study, 256 women who had clinical T2 breast cancer and planned to receive, as initial treatment either BCS (n=197) or neoadjuvant chemotherapy (n=59) between January 2009 and December 2012 were included. The data, including age, initial tumor size, mammographic microcalcification, ultrasound multifocality and axillary nodal status, were collected. The pathologic tumor size, p-multifocality, histologic type, estrogen receptor, progesterone receptor, human epidermal growth factor receptor 2, Ki-67, ductal carcinoma in situ (DCIS) and extensive intraductal component (EIC) were also reviewed. The re-excision and BCS success rates were investigated. Univariate analysis and regression model were used. To reduce the effect of selection bias, propensity score matching-based analysis was also performed. RESULTS: Of the 256 patients, 178 patients (90.4%, 178/197) in the non-neoadjuvant group and 56 patients (94.9%, 56/59) in the neoadjuvant group received BCS (p=0.406). In propensity-matched cohorts (n=118), the re-excision rate was similar in the two groups (35.6% in neoadjuvant group vs. 35.6% in non-neoadjuvant group, p=1.000). BCS success rate was slightly higher in neoadjuvant group (94.9%, 56/59) than in non-neoadjuvant group (86.4% [51/59], p=0.205). In logistic regression model, clinicopathologic factors associated with re-excision were pathologic multifocality (odds ratio [OR], 4.56; p=0.0142), high Ki-67 (≥50%) (OR, 0.7; p=0.0243) and DCIS component (OR, 2.67; p=0.0261). CONCLUSION: This study showed that neoadjuvant chemotherapy could increase the success rate of BCS but could not decrease that of re-excision. The re-excision rate is more associated with pathologic finding rather than the effect of neoadjuvant chemotherapy.

The Practice Patterns and Perceptions of Korean Surgeons Regarding Margin Status after Breast-Conserving Surgery / 한국유방암학회지

Two consecutive surveys for breast surgeons in Korea were conducted to comprehend the practice patterns and perceptions on margin status after breast-conserving surgery. The surveys were conducted online in 2014 (initial) and 2016 (follow-up). A total of 126 and 88 responses were obtained in the initial and follow-up survey, respectively. More than 80% of the respondents replied to routinely apply frozen section biopsy for intraoperative margin assessment in both surveys. Re-excision recommendations of the margin for invasive cancer significantly changed from a close margin to a positive margin over time (p=0.033). Most of the respondents (73.8%) defined a negative margin as “no ink on tumor” in invasive cancer, whereas more diverse responses were observed in ductal carcinoma in situ cases. The influence of guideline establishment for negative margins has been identified. A high uptake rate of intraoperative frozen section biopsy was noted and routine use needs reconsideration.

Effect of Time Interval between Breast-Conserving Surgery and Radiation Therapy on Outcomes of Node-Positive Breast Cancer Patients Treated with Adjuvant Doxorubicin/Cyclophosphamide Followed by Taxane / Journal of the Korean Cancer Association, 대한암학회지

PURPOSE: This study evaluated the effect of surgery-radiotherapy interval (SRI) on outcomes in patients treated with adjuvant radiotherapy (RT) after breast-conserving surgery (BCS) and adjuvant four cycles of doxorubicin/cyclophosphamide (AC) followed by four cycles of taxane. MATERIALS AND METHODS: From 1999 to 2007, 397 eligible patients were diagnosed. The effect of SRI on outcomes was analyzed using a Cox proportional hazards model, and a maximal chi-square method was used to identify optimal cut-off value of SRI for each outcome. RESULTS: The median SRI was 6.7 months (range, 5.6 to 10.3 months). A SRI of 7 months was the significant cut-off value for distant metastasis-free survival (DMFS) and disease-free survival (DFS) using a maximal chi-square method. For overall survival, a significant cut-off value was not found. The patients with SRI > 7 months had worse 6-year DMFS and DFS than those with SRI ≤ 7 months on univariate analysis (DMFS, 81% vs. 91%, p=0.003; DFS, 78% vs. 89%, p=0.002). On multivariate analysis, SRI > 7 months did not affect DMFS and DFS. CONCLUSION: RT delayed for more than 7 months after BCS and adjuvant four cycles of AC followed by four cycles of taxane did not compromise clinical outcomes.

Preoperative Magnetic Resonance Imaging and Survival Outcomes in T1–2 Breast Cancer Patients Who Receive Breast-Conserving Therapy / 한국유방암학회지

PURPOSE: The purpose of the study was to evaluate the effect of preoperative magnetic resonance imaging (MRI) on survival outcomes for breast cancer. METHODS: A total of 954 patients who had T1–2 breast cancer and received breast-conserving therapy (BCT) between 2007 and 2010 were enrolled. We divided the patients according to whether they received preoperative MRI or not. Survival outcomes, including locoregional recurrence-free survival (LRRFS), recurrence-free survival (RFS), and overall survival (OS), were analyzed. RESULTS: Preoperative MRI was performed in 743 of 954 patients. Clinicopathological features were not significantly different between patients with and without preoperative MRI. In the univariate analyses, larger tumors were marginally associated with poor LRRFS compared to smaller tumors (hazard ratio [HR], 3.22; p=0.053). Tumor size, histologic grade, estrogen receptor (ER), progesterone receptor (PR), hormonal therapy, and adjuvant chemotherapy status were associated with RFS. Larger tumor size, higher histologic grade, lack of ER and PR expression, and no hormonal therapy were associated with decreased OS. Tumor size was associated with LRRFS in the multivariate analyses (HR, 4.19; p=0.048). However, preoperative MRI was not significantly associated with LRRFS, RFS, or OS in either univariate or multivariate analyses. CONCLUSION: Preoperative MRI did not influence survival outcomes in T1–2 breast cancer patients who underwent BCT. Routine use of preoperative MRI in T1–2 breast cancer may not translate into longer RFS and OS.