An exploratory clinical trial of preoperative non-invasive localization before breast-conserving surgery using augmented reality technology.

PURPOSE: This single-center, randomized, prospective, exploratory clinical trial was conducted to assess the clinical efficacy of an augmented reality (AR)-based breast cancer localization imaging solution for patients with breast cancer. METHODS: This clinical trial enrolled 20 women who were diagnosed with invasive breast cancer between the ages of 19 and 80, had a single lesion with a diameter ≥ 5 mm but ≤ 30 mm, had no metastases to other organs, and had not received prior chemotherapy. All patients underwent mammography, ultrasound, computed tomography, and magnetic resonance imaging for preoperative assessment. Patients were randomly assigned to ultrasound-guided skin marking localization (USL) and AR-based localization (ARL) groups (n = 10 in each group). Statistical comparisons between USL and ARL groups were made based on demographics, radiologic features, pathological outcomes, and surgical outcomes using chi-square and Student t-tests. RESULTS: Two surgeons performed breast-conserving surgery on 20 patients. Histopathologic evaluation of all patients confirmed negative margins. Two independent pathologists evaluated the marginal distances, and there were no intergroup differences in the readers' estimates (R1, 6.20 ± 4.37 vs. 5.04 ± 3.47, P = 0.519; R2, 5.10 ± 4.31 vs. 4.10 ± 2.38, P = 0.970) or the readers' average values (5.65 ± 4.19 vs. 4.57 ± 2.84, P = 0.509). In comparing the tumor plane area ratio, there was no statistically significant difference between the two groups in terms of either reader's mean values (R1, 15.90 ± 9.52 vs. 19.38 ± 14.05, P = 0.525; R2, 15.32 ± 9.48 vs. 20.83 ± 12.85, P = 0.290) or the overall mean values of two readers combined (15.56 ± 9.11 vs. 20.09 ± 13.38, P = 0.388). Convenience, safety, satisfaction, and reusability were all superior in the AR localization group (P < 0.001) based on the two surgeons' responses. CONCLUSION: AR localization is an acceptable alternative to ultrasound-guided skin marking with no significant differences in surgical outcomes.

Ten-year trend analysis of breast cancer, oncoplastic, and reconstructive breast surgery in a single institution (2010-2019), what has not changed?

PURPOSE: There has been a UK national directive to ensure that patients are offered reconstructive surgical options. We aimed to assess any change in oncoplastic practice over a 10-year period. METHODS: The surgical management of 7019 breast cancers was retrospectively assessed at Nightingale Breast Centre, Manchester University UK, from 2010 to 2019. The procedures were categorised into breast conservative surgery (BCS) and mastectomy ± immediate reconstruction. The data were analysed using inclusion and exclusion criteria. RESULTS: The overall rates of BCS and mastectomy were 60.1% and 39.9% respectively. No statistically significant change in the overall rates of BCS or mastectomy was observed over the last decade (p = 0.08). The rate of simple wide local excision (WLE) decreased from 98.7% to 89.3% (p < 0.001), whilst the rate of therapeutic mammoplasty (TM) increased from 1.3% to 8% (p < 0.01). The rate of chest wall perforator flaps (CWPF) changed from zero to account for 2.7% of all BCS by 2019. The overall rate of immediate breast reconstruction (IBR) did not significantly change over the study period, but it consistently remained above the national average of 27%. The rate of implant-based IBR increased from 61.3% to 76.5% (p = 0.012), whilst the rate of Latissimus Dorsi (LD) reconstruction decreased from 26.7% to 5.1% (p < 0.05). Additionally, the rate of nipple-sparing mastectomy significantly increased from 5.2% to 24%. CONCLUSION: No significant changes in the overall rates of BCS was observed, the rates of advanced breast conservation techniques, nipple-sparing mastectomy, and implant-based IBR all have increased, whilst the use of LD reconstruction decreased.

The Value of Tumor Infiltrating Lymphocytes (TIL) for Predicting the Response to Neoadjuvant Chemotherapy (NAC) in Breast Cancer according to the Molecular Subtypes.

INTRODUCTION: The antitumor host immune response is an important factor in breast cancer, but its role is not fully established. The role of tumor infiltrating lymphocytes (TIL) as an immunological biomarker in breast cancer has been significantly explored in recent years. The number of patients treated with neoadjuvant chemotherapy (NAC) has increased and the identification of a biomarker to predict the probability of pCR (pathological complete response) is a high priority. MATERIALS AND METHODS: We evaluated 334 cases of BC treated with NAC followed by surgical resection from 2020-2022 at the Ist Clinic of Oncological Surgery, Oncological Institute "Prof Dr I Chiricuta" Cluj Napoca. Of the above, 122 cases were available for histological evaluation both in pre-NAC biopsy and post-NAC resection tissue. Evaluation of biopsy fragments and resection parts were performed using hematoxylin eosin (H&E). The TIL evaluation took place according to the recommendations of the International TIL Working Group (ITILWG). RESULTS: There was a strong association between elevated levels of pre-NAC TIL. At the same time, there is a statistically significant correlation between stromal TIL and tumor grade, the number of lymph node metastases, the molecular subtype and the number of mitoses (p < 0.005). Intratumoral TIL showed a significant correlation with tumor size, distant metastasis, molecular subtype, number of mitosis, stage and lymph node metastasis (p < 0.005). We also demonstrated that high pre-NAC STIL represents a strong predictive marker for pCR. CONCLUSION: This study reveals the role of TIL as a predictive biomarker in breast cancer not only for the well-established TNBC (triple negative breast cancer) and HER2+ (Her2 overexpressed) subtypes but also in Luminal A and B molecular subtypes. In this scenario, the evaluation of sTIL as a novel predictive and therapy-predicting factor should become a routinely performed analysis that could guide clinicians when choosing the most appropriate therapy.

Dermoglandular advancement-rotation flap for conservative treatment of breast cancer - description of technique, objective and subjective assessments.

Objective: to describe and evaluate the dermoglandular advancement-rotation flap with no contralateral surgery as a technique for the conservative treatment of breast cancer when skin or a large proportion of gland requires resection. Patients/Methods: 14 patients with breast tumors with a mean size of 4.2 cm and need for skin resection. The resection area is included within an isosceles triangle, with its apex located on the areola, which is the pivot for rotation of a dermoglandular flap released through a lateral extension along that triangle base. Symmetry before and after radiotherapy was objectively assessed by authors using the BCCT.core software, as well as subjectively by three experts and patients themselves using the Harvard scale. Results: Experts considered the breast symmetry results to be excellent/good for 85.7% of patients in the early post-operative period and 78.6% in the late post-operative period. Excellent/good ratings provided by BCCT.core software amounted to 78.6% of cases in the early post-operative period and 92.9% in the late post-operative period. Symmetry was rated as excellent/good by 100% of patients. Conclusion: Dermoglandular advancement-rotation flap technique with no contralateral surgery provides good symmetry when a large proportion of skin or gland requires resection on breast conservative cancer treatment.

Prospective study: Impact of breast magnetic resonance imaging on oncoplastic surgery and on indications of mastectomy in patients who were previously candidates to breast conserving surgery.

Background: Routine use of magnetic resonance imaging (MRI) in the staging of patients with early breast cancer is still controversial. Oncoplastic surgery (OP) allows for wider resections without compromising the aesthetic results. This study aimed to assess the impact of preoperative MRI on surgical planning and on indications of mastectomy. Methods: Prospective study including T1-T2 breast cancer patients treated between January 2019 and December 2020 in the Breast Unit of the Hospital Nossa Senhora das Graças in Curitiba, Brazil. All patients had indication for breast conserving surgery (BCS) with OP and did a breast MRI after conventional imaging. Results: 131 patients were selected. Indication for BCS was based on clinical examination and conventional imaging (mammography and ultrasound) findings. After undergoing breast MRI, 110 patients (84.0%) underwent BCS with OP and 21 (16.0%) had their surgical procedure changed to mastectomy. Breast MRI revealed additional findings in 52 of 131 patients (38%). Of these additional findings, 47 (90.4%) were confirmed as invasive carcinoma. Of the 21 patients who underwent mastectomies, the mean tumor size was 2.9 cm (± 1,7cm), with all having additional findings on breast MRI (100% of the mastectomies group vs 28.2% of the OP, p<0.01). Of the 110 patients submitted to OP, the mean tumor size was 1,6cm (± 0,8cm), with only 6 (5.4%) presenting positive margins at the final pathology assessment. Conclusion: Preoperative breast MRI has an impact on the OP scenario, bringing additional information that may help surgical planning. It allowed selecting the group with additional tumor foci or greater extension to convert to mastectomy, with a consequent low reoperation rate of 5.4% in the BCS group. This is the first study to assess the impact of breast MRI in the preoperative planning of patients undergoing OP for the treatment of breast cancer.

Surgical Planning after Neoadjuvant Treatment in Breast Cancer: A Multimodality Imaging-Based Approach Focused on MRI.

Neoadjuvant chemotherapy (NACT) today represents a cornerstone in the treatment of locally advanced breast cancer and highly chemo-sensitive tumors at early stages, increasing the possibilities of performing more conservative treatments and improving long term outcomes. Imaging has a fundamental role in the staging and prediction of the response to NACT, thus aiding surgical planning and avoiding overtreatment. In this review, we first examine and compare the role of conventional and advanced imaging techniques in preoperative T Staging after NACT and in the evaluation of lymph node involvement. In the second part, we analyze the different surgical approaches, discussing the role of axillary surgery, as well as the possibility of non-operative management after-NACT, which has been the subject of recent trials. Finally, we focus on emerging techniques that will change the diagnostic assessment of breast cancer in the near future.

Breast Conservative Surgery for Breast Cancer: Indian Surgeon's Preferences and Factors Influencing Them.

Background: It is well established that disease-free survival and overall survival after breast conservation surgery (BCS) followed by radiotherapy are equivalent to that after mastectomy. However, in Asian countries, the rate of BCS continues to remain low. The cause may be multifactorial including the patient's choice, availability and accessibility of infrastructure, and surgeon's choice. We aimed to elucidate the Indian surgeons' perspective while choosing between BCS and mastectomy, in women oncologically eligible for BCS. Methods: We conducted a survey-based cross-sectional study in January-February 2021. Indian surgeons with general surgical or specialised oncosurgical training, who consented to participate were included in the study. Multinomial logistic regression was performed to assess the effect of study variables on offering mastectomy or BCS. Results: A total of 347 responses were included. The mean age of the participants was 43 ± 11 years. Sixty-three of the surgeons were in the 25-44 years age group with the majority (80%) being males. 66.4% of surgeons 'almost always' offered BCS to oncologically eligible patients. Surgeons who had undergone specialised training in oncosurgery or breast conservation surgery were 35 times more likely to offer BCS (p < 0.01). Surgeons working in hospitals with in-house radiation oncology facilities were 9 times more likely to offer BCS (p < 0.05). Surgeons' years of practice, age, sex and hospital setting did not influence the surgery offered. Conclusion: Two-thirds of Indian surgeons preferred BCS over mastectomy. Lack of radiotherapy facilities and specialised surgical training were deterrents to offering BCS to eligible women. Supplementary Information: The online version contains supplementary material available at 10.1007/s13193-022-01601-y.

Health-related quality of life among breast cancer patients in India.

PURPOSE: This study evaluated the health-related quality of life (HRQoL) among breast cancer patients during various phases of treatment and with different treatment modalities, which helps in monitoring treatment outcomes, assessing the well-being of patients, and conducting health technology assessments. METHODS: A total of 534 interviews were conducted among the patients of breast cancer recruited at different stages of disease and with different treatment modalities. HRQoL was determined using EuroQoL five dimensions questionnaire with five levels (EQ-5D-5L), EuroQoL Visual Analogue Scale (EQ VAS), and the EORTC QLQ-BR23 instrument. The utility values were determined based on the Indian EQ-5D-5L value set. The socio-demographic and clinico-therapeutic determinants of HRQoL were evaluated using multiple linear regression. RESULTS: The mean utility value of breast cancer patients was 0.602 (SD = 0.311) and mean EQ VAS score was 75 (SD = 12.3). The mean utility value at diagnosis was 0.628, whereas utility value was 0.55, 0.595, and 0.64 for post-surgery, post-chemotherapy, and post-radiotherapy treatment groups, respectively. The most frequently reported problem was pain/discomfort (in 84.3% patients), followed by anxiety/depression (83.5%). On EORTC QLQ-BR23, the maximum symptom scale scores for systemic therapy side effects were reported in the post chemotherapy group. The body image score and future perspective score were better in patients undergoing breast conservative surgery (BCS) compared to patients undergoing modified radical mastectomy. Age, education, and employment status of the patient, type of treatment modality, and use of taxanes are the determinants of HRQoL in breast cancer patients. CONCLUSION: Clinical interventions should focus upon management of pain and anxiety. BCS should be offered to all eligible patients as it is associated with better HRQoL. Addressing the factors that independently affect the HRQoL will help in improving the treatment compliance and outcomes.

Effects of decisional conflict, decision regret and self-stigma on quality of life for breast cancer survivors: A cross-sectional, multisite study in China.

AIMS: To examine the differences in decisional conflict, decision regret, self-stigma and quality of life among breast cancer survivors who chose different surgeries, as well as the effects of decisional conflict, decision regret and self-stigma on quality of life. DESIGN: Observational study. METHODS: Paper and online surveys were used to collect data from March to September 2020. The Chinese version of the Decisional Conflict Scale, Decision Regret Scale, Self-Stigma Form and Functional Assessment of Cancer Treatment-B were used to measure the corresponding health outcomes for breast cancer survivors who chose different surgeries from three university-affiliated hospitals. One-way analysis of variance, Pearson's correlation coefficient and hierarchical multiple regression analysis were used for data analysis. RESULTS: Among the 448 participants, only 21% chose breast conservative surgery, while 79% chose mastectomy with or without reconstruction. Women who chose mastectomy with reconstruction reported higher decisional conflict (p = .028) and more decision regret (p = .013) than women who chose breast conservative surgery; women who chose mastectomy without reconstruction indicated higher decisional conflict (p = .015), more decision regret (p < .001), and higher self-stigma (p = .034) than women who chose breast conservative surgery. Decisional conflict (r = -.430), decision regret (r = -.495), and self-stigma (r = -.561) were negatively correlated with quality of life. After controlling for sociodemographic and clinical variables, decisional conflict and decision regret explained 19.7% and self-stigma explained 12.9% of the variance in quality of life. CONCLUSION: Decisional conflict, decision regret and self-stigma vary according to different breast surgeries and are greatly associated with the quality of life of breast cancer survivors. IMPACT: Future studies are warranted to investigate the decision-making process and the underlying reasons for surgical choices. Decision support strategies pre-surgery are needed to inform women about the risks and benefits of surgery options. Moreover, psychosocial support post-surgery is warranted to relieve women's self-stigma, thus improving their quality of life.

Influence of surgical technique on complications, readmissions and clinical progress of breast cancer in women participating in screening programs / Influencia de la técnica quirúrgica en las complicaciones, reingresos y evolución clínica del cáncer de mama en mujeres participantes en programas de cribado poblacional

Introduction: Complications and readmissions derived from surgical treatment of breast cancer have been less evaluated than recurrence and mortality. The aim of this study was to analyze the results of surgical treatment and prognosis in a screening population with known high surgical variability.Methods: This multicenter study included 1086 women diagnosed with breast cancer from the CaMISS cohort study of women aged between 50 and 69years participating in four breast cancer screening programs in Spain between 2000 and 2009 with a follow-up until 2014. Multivariate models were used to estimate the adjusted odds ratio of breast surgery (mastectomy vs conservative treatment) for complications and readmissions and hazard ratios for recurrences and mortality.Results: Primary breast surgical treatment consisted of conservative treatment in 821 women (80.1%) and mastectomy in 204 (19.9%). Mastectomy was associated with readmissions, recurrences and mortality but this association was not statistically significant on multivariate adjusted analysis (ORa=1.51 [95%CI 0.89–2.57], HRa=1.37 [95%CI 0.85–2.19] and HRa=1.52 [95%CI 0.95–2.43] respectively). In our sample, the variables with greatest impact on complications, recurrences and mortality were stages III and IV (ORa=4.4[95%CI 1.22–16.16], HRa=7.96 [95%CI 3.32–19.06] and HRa=3.92[95%CI 1.77–8.67]).Conclusion: Complications, readmissions, recurrence and mortality were similar in both surgical techniques. These results support that surgical treatment for breast cancer can be adapted to professional and health system circumstances, and to the surgical needs and desires of each patient. At a time when screening programs are being questioned the variable with the greatest impact on mortality was stage III and IV. (AU)

Introducción: Las complicaciones y los reingresos derivados del tratamiento quirúrgico del cáncer de mama han sido menos evaluados que la recidiva y la mortalidad. El objetivo de este estudio ha sido analizar los resultados y el pronóstico del cáncer de mama en función del tipo de cirugía recibida en una población con elevada variabilidad quirúrgica.Métodos: En este estudio multicéntrico se incluyeron 1086 mujeres diagnosticadas de cáncer de mama de la cohorte CaMISS, con mujeres de entre 50 y 69 años participantes en 4 programas de cribado Españoles entre 2000 y 2009, con seguimiento hasta 2014. Se utilizó la regresión logística multivariada para estimar la odds ratio de complicaciones y reingresos. También modelos Cox para estimar hazard ratios de recidivas y mortalidad.Resultados: Se realizó cirugía conservadora en 821 mujeres (80,1%) y mastectomía en 204 (19,9%). La mastectomía se asoció con reingresos, recidivas y mortalidad, pero esta asociación no fue estadísticamente significativa en el análisis multivariado ajustado (ORa=1,51[IC95% 0,89-2,57], HRa=1,37[IC95% 0,85-2,19] y HRa=1,52[IC95% 0,95-2,43] respectivamente). La variable con mayor impacto sobre complicaciones, recidivas y mortalidad fue el estadio III/IV (ORa=4,4[IC 95%: 1,22-16,16], HRa=7,96[IC 95%: 3,32-19,06] y HRa=3,92[IC 95%: 1,77-8,67]).Conclusión: Las complicaciones, reingresos, recidiva y mortalidad fueron estadísticamente equivalentes en ambas técnicas quirúrgicas. El tratamiento quirúrgico del cáncer de mama puede adaptarse a las circunstancias profesionales, del sistema sanitario además de necesidades y deseos quirúrgicos de cada paciente. En un momento en que se cuestionan los programas de cribado, la variable con mayor impacto en mortalidad fue el estadio.

Pectoralis major myo-parenchymal flap for local reconstruction of partial mastectomy defects: Description of a new technique.

INTRODUCTION: Breast conservation is the standard of care for early breast cancer. Several oncoplastic approaches have been described for the reconstruction of partial breast defects. The multiplicity of techniques indicates that the ideal reconstructive technique is yet to be identified. There has been a recent emphasis on minimizing the magnitude of surgery. In this report, we describe our experience using the pectoralis major muscle to fill relatively large post-tumorectomy breast defects. PATIENTS AND TECHNIQUE: Nine patients were operated on for malignant breast lesions. Tumorectomy resection with surgical margin rendered a 40-50% breast defect. The parenchymal defect was repaired with an advancement muscle flap of the ipsilateral pectoralis major muscle. RESULTS: All patients experienced a non-eventful postoperative course. The early cosmetic outcome was excellent in four patients, good in another four, and fair in one patient. CONCLUSION: The pectoralis major flap is useful for local repair of upper half partial breast defects in non-ptosed, cup A-B breasts.

Adenoid cystic carcinoma of the breast and intraoperative electron radiotherapy: single case report and review of literature.

Adenoid cystic carcinoma (ACC) of the breast is a very rare neoplasm. It presents a triple-negative phenotype in most cases, but its prognosis is generally considered to be better than other breast cancers with the same immunohistochemical pattern. Due to its controversial features, no data are available in the literature regarding a consensus approach for ACC treatment, especially for subtypes with worse prognosis like solid basaloid ACC. We present for the first time a rare case of ACC with multifocal presentation treated with breast-conservative surgery and intraoperative electron radiotherapy, thus supporting this treatment of ACC in selected patients like young women affected by the solid basaloid variant who commonly present a worse prognosis. In this case, no local or systemic recurrence was detected after 30 months of follow-up.

Plain language summary Breast cancer is a large group of tumors with different and specific features. Because of its variety, no univocal guidelines are available to medical doctors for the treatment of this disease, especially for the rarest presentations. This is the case for breast adenoid cystic carcinoma, a rare tumor which accounts for less than 0.1% of all breast cancers and about which few instructions for its therapeutic approach or prognosis are described in the literature. This case report describes our experience using partial breast resection in combination with a specific protocol of intraoperative radiation for the treatment of an aggressive variant of breast adenoid cystic carcinoma. Good cosmetic results and no recurrence of the disease were shown, suggesting that a conservative approach could avoid unnecessary total breast resection as supported by some previous authors.

Nipple-Sparing Mastectomy: Initial Experience Evaluating Patients Satisfaction and Oncological Safety in a Tertiary Care Centre in Jordan.

Introduction Nipple-sparing mastectomy (NSM), a procedure involving careful dissection of the breast tissue whilst keeping the nipple-areola complex (NAC) intact, is now increasingly practiced amongst surgeons in the treatment of certain situations of breast cancer. Given the importance of breasts to the female body image, this type of conservative breast surgery takes into account patient satisfaction and overall cosmesis, whilst ensuring appropriate oncological safety. Methods and results Four nipple-sparing mastectomy procedures were performed in our tertiary care centre, Princess Basma Teaching Hospital, in Jordan between June and September 2019. Indications for these procedures included invasive ductal carcinoma, malignant phyllodes, and high-grade ductal carcinoma in-situ. Patients were carefully assessed prior to surgical intervention using radiological imaging, ensuring a distance from NAC of >2 cm in all cases. Procedures were performed successfully with minimal intraoperative and no post-operative complications. Follow-up was carried out at 24 months, with no cases of local or distant post-operative recurrence, and patient satisfaction was qualitatively measured with the use of a BREAST-Q questionnaire. The questionnaire demonstrated improved overall physical well-being and satisfaction with an average overall post-operative physical well-being of 97%. Conclusion Following nipple-sparing mastectomy and immediate submuscular reconstruction with silicone implants,patients demonstrated high levels of satisfaction and quality of life (QoL) as measured by BREAST-Q survey. Two years of follow-up confirmed high patient satisfaction with increased scores from the preoperative baseline level.

Breast Cancer Surgery: New Issues.

Since ancient times, breast cancer treatment has crucially relied on surgeons and clinicians making great efforts to find increasingly conservative approaches to cure the tumor. In the Halstedian era (mid-late 19th century), the predominant practice consisted of the radical and disfiguring removal of the breast, much to the detriment of women's psycho-physical well-being. Thanks to enlightened scientists such as Professor Umberto Veronesi, breast cancer surgery has since impressively progressed and adopted a much more conservative approach. Over the last three decades, a better understanding of tumor biology and of its significant biomarkers has made the assessment of genetic and molecular profiles increasingly important. At the same time, neo-adjuvant treatments have been introduced, and great improvements in genetics, imaging technologies and in both oncological and reconstructive surgical techniques have been made. The future of breast cancer management must now rest on an ever more precise and targeted type of surgery that, through an increasingly multidisciplinary and personalized approach, can ensure oncological radicality while offering the best possible quality of life.

Does Tumor Marking Before Neoadjuvant Chemotherapy Helps Achieve Better Outcomes in Patients Undergoing Breast Conservative Surgery? A Systematic Review.

Patients with breast cancer are increasingly being offered breast conserving surgery (BCS) following neoadjuvant chemotherapy (NACT). We aimed to conduct a systematic review to assess the advantage of tumor marking in patients undergoing BCS after NACT. After registering the protocol for a systematic review with PROSPERO, a systematic search was conducted through September 30, 2020, for all studies involving patients undergoing BCS post NACT after tumor marking. Margin status on final histology was the primary outcome. Oxford Centre for Evidence Based Medicine (OCEBM) levels were used to assess internal validity. A total of 636 records from Medline/PubMed, 1381 from Embase, and 1422 from Cochrane library were extracted. After screening, 15 articles (1520 patients) were included for data synthesis. For marking, 6 studies used metallic markers and 5 used 125I-radioactive seeds (RSL) followed by skin tattoo and radio-guided occult lesion localization using 99mTc (ROLL) in one study each. Most studies used a single marker at the center except for two (143 patients), who practiced the bracketing technique. Incidence of unsatisfactory margins (positive/close) ranged from 5 to 23.5%. After excluding patients with complete pathological response, the "adjusted unsatisfactory margin" rate was found to be 19.3% (10.4-33%). Overall 20.6 recurrences (locoregional/distant) were reported per 1000 patient-years follow-up. Overall survival (OS) was only reported by one study as 96.6% and 84.7% in patients with and without marker placement (p = .01). Re-excision and secondary mastectomy rates (reported by nine studies) were 7.3% and 5.7% respectively. There is limited evidence that tumor marking before neoadjuvant chemotherapy improves the rate of unsatisfactory margins or survival outcomes in a patient undergoing BCS after NACT.

Intraoperative Assessment of Endogenous Microbiota in the Breast / Avaliação intraoperatória da microbiota endógena da mama

Abstract Objective: Breast surgery is considered a clean surgery; however, the rates of infection range between 3 and 15%. The objective of the present study was to intraoperatively investigate the presence of autochthonous microbiota in the breast. Methods: Pieces of breast tissue collected from 49 patients who underwent elective breast surgery (reconstructive, diagnostic, or oncologic) were cultured. The pieces of breast tissue were approximately 1 cm in diameter and were removed from the retroareolar area, medial quadrant, and lateral quadrant. Each piece of tissue was incubated in brain heart infusion (BHI) broth for 7 days at 37°C, and in cases in which the medium became turbid due to microorganism growth, the samples were placed in Petri dishes for culturing and isolating strains and for identifying species using an automated counter. Results: Microorganism growth was observed in the samples of 10 of the 49 patients (20.4%) and in 11 of the 218 pieces of tissue (5%). The detected species were Staphylococcus lugdunensis, Staphylococcus hominis, Staphylococcus epidermidis, Sphingomonas paucimobilis, and Aeromonas salmonicida. No patient with positive samples had clinical infection postoperatively. Conclusion: The presence of these bacteria in breast tissue in approximately 20% of the patients in this series suggests that breast surgery should be considered a potential source of contamination that may have implications for adverse reactions to breast implants and should be studied in the near future for their oncological implications in breast implant-associated large-cell lymphoma etiology.

Resumo Objetivo: A cirurgia de mama é considerada uma cirurgia limpa; entretanto, as taxas de infecção variam entre 3 e 15%. O objetivo deste estudo foi investigar no intraoperatório a presença de microbiota autóctone na mama. Métodos: Pedaços de tecido mamário coletados de 49 pacientes submetidas à cirurgia eletiva da mama (reconstrutiva, diagnóstica ou oncológica) foram cultivados. Os pedaços de tecido mamário tinham aproximadamente 1 cm de diâmetro e foram removidos da área retroareolar e dos quadrantes medial e lateral. Cada pedaço de tecido foi incubado em caldo BHI (brain heart infusion) por 7 dias a 37 ° C, e nos casos em que o meio ficou turvo devido ao crescimento de microrganismos, as amostras foram colocadas em placas de Petri para cultivo e isolamento de cepas e para identificação de espécies usando um contador automatizado. Resultados: O crescimento do microrganismo foi observado nas amostras de 10 das 49 pacientes (20,4%) e em 11 dos 218 pedaços de tecido (5%). As espécies detectadas foram Staphylococcus lugdunensis, Staphylococcus hominis, Staphylococcus epidermidis, Sphingomonas paucimobilis e Aeromonas salmonicida. Nenhum paciente com amostras positivas apresentou infecção clínica no pós-operatório. Conclusão: A presença dessas bactérias no tecido mamário em aproximadamente 20% das pacientes desta série sugere que a cirurgia mamária deve ser considerada uma fonte potencial de contaminação que pode ter implicações nas reações adversas aos implantes mamários e deve ser estudada em um futuro próximo por suas implicações oncológicas na etiologia do linfoma de células grandes associado ao implante de mama.

Paravertebral block in regional anesthesia with propofol sedation reduces locoregional recurrence in patients with breast cancer receiving breast conservative surgery compared with volatile inhalational without propofol in general anesthesia.

PURPOSE: We examined locoregional recurrence (LRR) in patients with breast invasive ductal carcinoma (IDC) receiving breast conservative surgery (BCS) under propofol-based paravertebral block-regional anesthesia (PB-RA) versus sevoflurane-based inhalational general anesthesia (INHA-GA) without propofol. All-cause death and distant metastasis were secondary endpoints. PATIENTS AND METHODS: Patients with breast IDC receiving BCS were recruited through propensity score matching and categorized into INHA-GA with sevoflurane and PB-RA with propofol groups. Cox regression analysis was performed to calculate hazard ratios (HRs) and 95% confidence intervals (CIs). RESULTS: In the multivariate Cox regression analysis, the adjusted HR (aHR; 95% CI) of LRR for the PB-RA with propofol group was 0.67 (0.46-0.99) compared with the INHA-GA with sevoflurane group. The aHRs of LRR for differentiation grade II, grade III, the American Joint Committee on Cancer clinical stage II, stage III, pathological tumor (pT) stage 2, pT stage 3-4, pathological nodal (pN) stage 2-3, and Her-2 positivity were 1.87 (1.03-3.42), 2.31 (1.20-4.44), 1.67 (1.09-2.56), 2.43 (1.18-4.97), 1.17 (1.03-1.19), 1.28 (1.13-2.24), 1.20 (1.05-2.22), and 1.59 (1.01-2.51), respectively, compared with those for differentiation grade I, clinical stage I, pT1, pN0, and HER-2 negativity. The aHR of LRR for adjuvant radiotherapy was 0.60 (0.38-0.97) compared with that for no adjuvant radiotherapy. CONCLUSION: PB-RA with propofol might be beneficial for reducing LRR in women with breast IDC receiving BCS compared with INHA-GA without propofol.

Trends, survival outcomes, and predictors of nonadherence to mastectomy guidelines for nonmetastatic inflammatory breast cancer.

BACKGROUND: The Current National Comprehensive Cancer Network guidelines recommend modified radical mastectomy (MRM) as the surgical treatment of choice for nonmetastatic inflammatory breast cancer (IBC). Limited studies have looked into the outcomes of breast conserving surgery (BCS) vs. MRM for IBC. METHODS: National Cancer Database (NCDB) data from 2004 to 2014 were retrospectively analyzed. Patients' demographics, tumor characteristics, and overall survival (OS) trends were compared for BCS and MRM cases of nonmetastatic IBC. Univariate and multivariate analyses were performed. RESULTS: A total of 413 (3.89%) BCS and 10,197 (96.11%) MRM cases were identified. Median follow-up was 58.45 months. Compared to MRM, BCS patients were more likely to be older, be African American, have Medicare/Medicaid or be uninsured, live in lower education ZIP codes, and live in a metropolitan area (all p < 0.05). BCS rates significantly decreased from 5.84% in 2004 to 3.19% in 2014 (p < 0.001). BCS patients also were more likely to have less than 50% of the breast involved (51.57% vs. 43.88%; p = 0.0081) and were less likely to receive trimodal therapy (50.85% vs. 74.62%; p = <0.0001). The OS was significantly higher in the mastectomy group over 9 years at 62.02% vs. 54.47% in the BCS group. Additionally, in the adjusted multivariate model, BCS cases were associated with 23% higher hazards of overall mortality (p = 0.0091). CONCLUSION: BCS was performed in a limited number of cases, which decreased over the study period. The analysis identified both demographic predictors of receiving BCS and significantly lower OS for IBC patients undergoing a BCS.