Efficiency Assessment of Breast Clinics for Patients Under 35: A Comparative Analysis of Targeted Models in a University Hospital.

Despite the higher incidence of breast cancer in older age groups, it remains pertinent not to overlook breast cancer occurrence in those aged 35 years and below. Recent transitions toward targeted under-35 clinics in England aim to enhance efficiency and meet referral standards. Three models were planned, and we assessed the efficiency of each model. This study, conducted for five months within a single National Health Service (NHS) trust, analyzed data from the following clinics: the General One-Stop Clinic, the Under 35 One-Stop Clinic with ultrasound services (USS), and the Under 35 Clinic without USS services. Of the 300 patients recruited (100 consecutive patients from each clinic), 94.3% were female. The average age at presentation was 27.53 years. The most frequently encountered age group was between 26 and 30 years, and the majority of patients had palpable lumps (78, 51.6%). Out of 300 patients who attended the clinics, 151 had USS, and of these, 15 biopsies were performed. Fibroadenomas (32, 21.2%) and cysts (22, 14.6%) were the most common radiological findings. We found that more breast imaging was being undertaken for under-35 patients who attended the general one-stop clinics compared to the specific under-35 clinics. Targeted breast clinics for individuals 35 years and below offer an effective approach in terms of resource allocation and meeting cancer targets.

Factors leading to the late diagnosis and poor outcomes of breast cancer in Matabeleland South and the Bulawayo Metropolitan Provinces in Zimbabwe.

INTRODUCTION: Breast cancer (BC) is the leading cause of female cancer deaths in Africa, and in Zimbabwe, >80% present with advanced disease. A Needs Project (NP) was carried out to determine the key factors responsible for delayed diagnosis and poor BC outcomes and to investigate possible solutions in 6 rural and urban districts of Matabeleland South and Bulawayo Metropolitan Provinces. METHODS: A mixed method approach was used to collect data in 2 phases. Phase 1: an exploration of key factors leading to poor BC outcomes with >50 professional stakeholders and patient representatives. Phase 2: (i) Quantitative arm; validated questionnaires recording breast cancer knowledge, demographic information and perceived barriers to care administered to women and their relatives (Group 1) and health professionals (HPs) (Group 2). (ii) Qualitative arm; 10 focus group discussions with medical specialists and interested lay representatives (Group 3). The Cochran sample size formulae technique was used to determine the quantitative sample size and data was aggregated and analysed using SPSS Version 23™. Purposive sampling for the qualitative study selected participants with an understanding of BC and the NP. Focus group discussions were recorded and a thematic analysis of the transcriptions was conducted using NVivo9™. RESULTS: Quantitative analysis of Group 1 data (n = 1107) confirmed that younger women (<30years) had the least knowledge of breast cancer (p<0.001). Just under half of all those surveyed regarded breast cancer as incurable. In Group 2 (n = 298) the largest group of health workers represented were general nurses and midwives (74.2%) in keeping with the structure of health provision in Zimbabwe. Analysis confirmed a strong association between age and awareness of BC incidence (p = 0.002) with respondents aged 30-39 years being both the largest group represented and the least knowledgeable, independent of speciality. Nearly all respondents (90%) supported decentralisation of appropriate breast surgical services to provincial and district hospitals backed up by specialist training. Thematic analysis of focus group discussions (Group 3) identified the following as important contributors to late BC diagnosis and poor outcomes: (i) presentation is delayed by poorly educated women and their families who fear BC and high treatment costs (ii) referral is delayed by health professionals with no access to training, skills or diagnostic equipment (iii), treatment is delayed by a disorganised, over-centralized patient pathway, and a lack of specialist care and inter-disciplinary communication. CONCLUSION: This study confirms that the reasons for poor BC outcomes in Zimbabwe are complex and multi-factorial. All stakeholders support better user and provider education, diagnostic service reconfiguration, targeted funding, and specialist training.

A Simple Technique Using Peri-Prosthetic Irrigation Improves Implant Salvage Rates in Immediate Implant-Based Breast Reconstruction.

Background and objectives: Implant-related complications leading to implant loss contribute to major morbidity in immediate breast reconstruction (IBR). Various techniques have been advocated to improve rates of reconstruction salvage. The objective of our study was to assess if a peri-prosthetic irrigation system was an effective adjunct to the conventional wash-out technique in improving reconstruction salvage rates. Methods: The study included patients who had immediate implant-based breast reconstruction from January 2015 to November 2020. The conventional technique of reconstruction salvage, using debridement, wash-out, and implant/expander exchange with systemic use of antibiotics, was performed for patients undergoing exploration for infection until May 2019. A simple technique using a continuous peri-prosthetic irrigation system with vancomycin (1 g/L normal saline over 24 h) for 2 days was added as an adjunct to the conventional technique. Treatment details and clinical outcomes were compared between the groups. The study was approved by the Clinical Governance department. Results: During the study period, 335 patients underwent IBR. A total of 65 patients (19.4%) returned to the theatre due to post-operative complications, of which 45 (13.4%) were due to infection. A conventional technique was used in 38 (84.4%) patients, and peri-prosthetic irrigation was used as an adjunct in 7 patients (15.6%). A total of 16 (42.1%) in the conventional group and all 7 (100%) in the irrigation group had successful reconstruction salvage. No patients had complications due to antibiotic irrigation. Conclusions: The peri-prosthetic irrigation system is a simple, safe, and effective adjunct to conventional techniques in improving reconstruction salvage in IBR.

Impact of Chest Wall Perforator Flaps on Rates of Total Mastectomy in Breast Cancer.

Breast-conserving surgery (BCS) outcomes are comparable to mastectomy in breast cancer treatment. However, patients with large tumours were offered mastectomy due to the resulting poor cosmetic sequelae after standard BCS. With the introduction of chest wall perforator flaps (CWPF), BCS is an option in patients with large tumour:breast ratio. The objective of our study was to evaluate the surgical outcomes of CWPFs and their impact on mastectomy rates. In order to assess the impact of CWPF on mastectomy rates, patients who underwent breast cancer surgery from January 2016 to December 2019 were included in a cohort named group A. In group A, the type of surgery performed was collected for each year from January 2016 to December 2019. Patients who underwent BCS and CWPF from July 2016 to June 2021 were included in another cohort named group B. In group B, patient-related and disease-specific details including post-operative complications were collected and analysed. In group A, following the introduction of CWPF, the mastectomy rates dropped by 10.69% and the mastectomy with reconstruction rates dropped by 23.29%. In group B, a total of 152 patients underwent CWPF reconstructions. The median tumour size was 20 mm (range = 0-80). A majority of patients were discharged within 24-h hospital stay (98.2%). Seventeen patients (11.11%) had a re-operation for margin positivity. Sixteen patients (10.46%) developed early complications and 19 patients (12.42%) developed delayed complications. CWPFs expand indications for BCS thus reducing mastectomy rates. It also has less morbidity when compared to reported mastectomy and reconstruction rates, thus making it a safe option for suitable patients.

An Audit on Oncological Safety with Magseed Localised Breast Conserving Surgery.

Wire-localised wide local excision (W-WLE) has been standard of care for impalpable breast lesions. Logistics and risks of wire localisation can be challenging. Magseed-localised wide local excision (M-WLE) is an alternative to W-WLE. We compare safety parameters and length of hospital stay (LOS) in patients undergoing M-WLE to W-WLE. All M-WLEs performed at single institution over an 8-month period were included and compared to historic matched cohort of W-WLEs who would have been suitable for Magseed localisation. Data including patient demographics, successful placements, re-excision rates, tumour size, and length of stay (LOS) was analysed. Two hundred thirty-eight patients were included in the study. Cancers were safely excised in all cases. A significant difference in re-excisions rates favouring M-WLE group was seen (2.9% vs 10.4%). Median waiting time to surgery was significantly shorter in M-WLE group (4 h 15 min vs 7 h 3 min). No significant difference in median LOS between the two groups was seen. M-WLE has been shown to be oncologically safe and non-inferior to W-WLE with significantly lower re-excision rate. Reduced pre-operative waiting time in the M-WLE group will have a positive effect on patient journey. Further research should focus on potential impact on day-bed utilisation and theatre efficiency.

Combined Perioperative Lapatinib and Trastuzumab in Early HER2-Positive Breast Cancer Identifies Early Responders: Randomized UK EPHOS-B Trial Long-Term Results.

PURPOSE: EPHOS-B aimed to determine whether perioperative anti-HER2 therapy inhibited proliferation and/or increased apoptosis in HER2-positive breast cancer. PATIENTS AND METHODS: This randomized phase II, two-part, multicenter trial included newly diagnosed women with HER2-positive invasive breast cancer due to undergo surgery. Patients were randomized to: part 1 (1:2:2), no treatment (control), trastuzumab or lapatinib; part 2 (1:1:2) control, trastuzumab, or lapatinib and trastuzumab combination. Treatment was given for 11 days presurgery. Coprimary endpoints were change in Ki67 and apoptosis between baseline and surgery tumor samples (biologic response: ≥30% change). Central pathology review scored residual cancer burden (RCB). Relapse-free survival (RFS) explored long-term effects. RESULTS: Between November 2010 and September 2015, 257 patients were randomized (part 1: control 22, trastuzumab 57, lapatinib 51; part 2: control 29, trastuzumab 32, combination 66). Ki67 response was evaluable for 223 patients: in part 1 Ki67 response occurred in 29/44 (66%) lapatinib versus 18/49 (37%) trastuzumab (P = 0.007) and 1/22 (5%) control (P < 0.0001); in part 2 in 36/49 (74%) combination versus 14/31 (45%) trastuzumab (P = 0.02) and 2/28 (7%) control (P < 0.0001). No significant increase in apoptosis after 11 days was seen in treatment groups. Six patients achieved complete pathologic response (pCR, RCB0) and 13 RCB1, all but two in the combination group. After 6 years median follow-up, 28 (11%) had recurrence and 19 (7%) died. No recurrences or deaths were observed among patients who achieved a pCR. Ki67% falls ≥50% associated with fewer recurrences (P = 0.002). CONCLUSIONS: Early response after short duration anti-HER2 dual therapy identifies cancers dependent on the HER2 pathway providing a strategy for exploring risk-adapted individualized treatment de-escalation.

Role of MRI in predicting response to neo-adjuvant systemic therapy (NAST) in breast cancer.

BACKGROUND AND OBJECTIVES: MRI is generally performed to assess response to Neo-adjuvant systemic therapy (NAST) in breast cancer. OBJECTIVE: To assess role of MRI in determining the probability of having residual disease in patients undergoing NAST. We also evaluated synchronous cancers diagnosed following MRI. METHODS: This is a retrospective study which included all patients who had pre-and post-NAST MRI between June 2014 and December 2019. Data on demographics, tumour characteristics and pathology were collected and analysed. Pre- and post-MRI probability were calculated and depicted on nomograms. RESULTS: The study included 205 patients. Overall pre-MRI probability of having residual disease was 55% (OR:1.2). The post-MRI probability was 78% (95% CI 72-83%; OR:3.5) if MRI showed residual disease and 23% (95% CI 16-31%, OR:0.3) if imaging showed complete response. The absolute benefit was higher in TNBC and HR-HER2. Additional cancers were identified in 8.78% of patients. CONCLUSION: MRI is beneficial in evaluating response to NAST specifically in TNBC and HR-HER2 cancers. Pre- and post-MRI probabilities of residual disease depicted on nomograms are a useful tool for clinicians. MRI can potentially impact the treatment decisions by identification of synchronous cancers.

A contextual multi-task neural approach to medication and adverse events identification from clinical text.

Effective wide-scale pharmacovigilance calls for accurate named entity recognition (NER) of medication entities such as drugs, dosages, reasons, and adverse drug events (ADE) from clinical text. The scarcity of adverse event annotations and underlying semantic ambiguities make accurate scope identification challenging. The current research explores integrating contextualized language models and multi-task learning from diverse clinical NER datasets to mitigate this challenge. We propose a novel multi-task adaptation method to refine the embeddings generated by the Bidirectional Encoder Representations from Transformers (BERT) language model to improve inter-task knowledge sharing. We integrated the adapted BERT model into a unique hierarchical multi-task neural network comprised of the medication and auxiliary clinical NER tasks. We validated the model using two different versions of BERT on diverse well-studied clinical tasks: Medication and ADE (n2c2 2018/n2c2 2009), Clinical Concepts (n2c2 2010/n2c2 2012), Disorders (ShAReCLEF 2013). Overall medication extraction performance enhanced by up to +1.19 F1 (n2c2 2018) while generalization enhanced by +5.38 F1 (n2c2 2009) as compared to standalone BERT baselines. ADE recognition enhanced significantly (McNemar's test), out-performing prior baselines. Similar benefits were observed on the auxiliary clinical and disorder tasks. We demonstrate that combining multi-dataset BERT adaptation and multi-task learning out-performs prior medication extraction methods without requiring additional features, newer training data, or ensembling. Taken together, the study contributes an initial case study towards integrating diverse clinical datasets in an end-to-end NER model for clinical decision support.

Unified concept and assertion detection using contextual multi-task learning in a clinical decision support system.

Assertions, such as negation and speculation, alter the meaning of clinical findings ('concepts') in Electronic Health Records. Accurate assertion detection is vital to the identification of target findings in clinical decision support systems. Diverse clinical concepts and assertion modifiers embedded within longer sentences add to the challenge of error-free detection. Recent approaches leveraging biomedical contextual embeddings lead to standalone concept and assertion models that do not effectively utilize inter-task knowledge transfer. We propose a novel neural model integrating task-specific fine-tuning and multi-task learning in a coherent framework based on the hierarchical relationship between the tasks. We show that such a unified framework enhances both the tasks using several real-world clinical notes' datasets (n2c2 2010, n2c2 2012, NegEx). Concept task performance enhanced by +1.69 F1 on n2c2 2010 and +2.96 F1 on n2c2 2012 compared to standalone baselines. Assertion recognition improved by +2.89 F1 and +3.77 F1, respectively. Negation detection under low-resource settings increased significantly (+2.4 F1, p-value = 3.11E-05, McNemar's test), demonstrating the impact of inter-task knowledge transfer. The integrated architecture enhanced the generalization performance of speculation detection (+2.09 F1). To the best of our knowledge, this model is the first demonstration of a contextual multi-task system for unified detection of concepts and assertions in clinical decision support applications.

Impact of Preoperative MRI in Invasive Ductal Carcinoma With Lobular Features on Core Biopsy.

BACKGROUND: Invasive breast cancer is comprised of a wide spectrum of histological types with different clinical presentations, imaging characteristics, and behaviors. Almost 10% of breast cancers with predominantly invasive ductal features have lobular components on core biopsy at primary diagnosis. Although the role of magnetic resonance imaging (MRI) in patients with purely lobular cancers is well-established, it is not clear if preoperative MRI is indicated in ductal cancer with lobular features. The aim of this study was to assess the role of preoperative MRI in patients with invasive ductal cancers with lobular features on core biopsy. MATERIALS AND METHODS: Data regarding patients with lobular features on core biopsy who underwent a preoperative MRI from January 2015 to December 2017 were retrospectively identified and analyzed. Imaging findings, additional investigations, and changes in treatment plans following the MRI scan were reviewed. RESULTS: The study included 120 patients, of whom 42 (35%) patients required a second-look ultrasound. Following a repeat ultrasound scan, 25 breasts and 4 axillae were biopsied. Thirty-eight percent of the breast biopsies and 50% of the axillary biopsies were malignant. Based on MRI findings, treatment plans changed in 22.5% of patients. MRI size was concordant with the histological size in 58.3% of cases, and MRI was accurate in 90% of patients in detecting multifocal disease requiring mastectomy. The majority of patients with changes in the management plans had mixed ductal and lobular cancer on final histology. CONCLUSION: This study has demonstrated that MRI picks up additional malignancies and changes management plans in patients with lobular features on core biopsy and should be considered in the preoperative workup.

Breast Cancer Management Guidelines During COVID-19 Pandemic.

The coronavirus disease (COVID-19) pandemic in 2020 has brought about complex challenges in healthcare delivery. With the new rules of lockdown and social distancing and with resources diverted to the management of COVID-19, there are difficulties in continuing usual cancer care. Patients are at risk of contracting COVID-19 with a high chance of patient to healthcare transmission and vice versa. Hospital visits, investigations and all modalities of treatment have potential complications that put patients at risk, some more than others. In this situation, there is a need to change our approach in the management of breast cancer to deliver it safely. We present modified guidelines based on the available consensus statements and evidence.

Patient-reported Upper Limb Function After Sentinel Lymph Node Biopsy for Breast Cancer: A Prospective Observational Study.

INTRODUCTION: Sentinel lymph node biopsy (SLNB) is the standard procedure for axillary staging in breast cancer. There is a lack of consistency in studies reporting on upper limb morbidity after SLNB. We present a prospective study evaluating upper limb function after SLNB using the validated quickDASH questionnaire. MATERIALS AND METHODS: Consecutive patients who underwent wide local excision and SLNB were included in the study. Arm function was assessed using the quickDASH questionnaire at 3 time points - prior to surgery and 2 weeks and 3 months after SLNB. The scores obtained were labeled as A, B, and C respectively. The mean and median scores were compared using the paired t test and Wilcoxon signed rank test. RESULTS: Ninety-nine patients met all inclusion criteria and were included in the final analysis. The mean A, B, and C scores were 8.46, 16.05, and 13.36. The median A, B, and C scores were 2.27, 7.5, and 4.54. There was a statistically significant difference between mean and median A and B scores, B and C scores, and A and C scores. A similar trend was observed in patients with better preoperative upper limb function. Patients with a higher body mass index had significantly worse B and C scores. CONCLUSION: There is a significant deterioration in upper limb function following SLNB. This improves at 3 months but does not reach baseline levels. Larger studies with long-term follow-up are required to establish the extent of upper limb functional morbidity and natural course of functional recovery after SLNB.

Chest wall perforator flaps for partial breast reconstruction: Surgical outcomes from a multicenter study.

BACKGROUND: Perforator artery flaps based on the branches of intercostal arteries and lateral thoracic artery can be used for reconstruction after breast-conserving surgery (BCS). Although described more than a decade ago, these have not been adopted widely in clinical practice. We report on short-term and long-term surgical outcomes of partial breast reconstruction using chest wall perforator flaps from a prospective multicenter audit. METHODS: All patients operated for BCS and partial breast reconstruction using intercostal artery perforator or lateral thoracic artery perforator flaps from January 2015 to October 2018 were included in the analysis. Oncoplastic breast surgeons with appropriate level of training performed all tumor excisions and reconstructions as a single-stage procedure. Patient characteristics, treatment details and surgical outcomes were noted. Specific outcomes recorded were margin re-excision and complication rates. RESULTS: One hundred and twelve patients underwent the procedure in the given study period. The median age was 54 years. Median specimen weight was 62.5 g and median volume of excision was 121.4 mL. Fifteen patients (13.39%) underwent a margin re-excision for close or positive margins without additional morbidity. One patient required a completion mastectomy. Eight patients (7.14%) had an early complication. None of the patients required a contralateral symmetrization procedure. The results were comparable across the participating centers. CONCLUSIONS: Chest wall artery perforator-based flaps are an excellent option for lateral and inferior quadrant partial breast reconstructions. The short and long-term surgical outcomes are comparable across sites and can be performed with minimal morbidity. Patient-reported outcome measures need to be studied.

A comparative analysis of axillary nodal burden in ultrasound/biopsy positive axilla vs ultrasound negative sentinel lymph node biopsy positive axilla.

BACKGROUND: Axillary Ultrasound (AUS) is now performed as a protocol in every newly diagnosed breast cancer in most European countries. It is an inexpensive and sensitive tool in hands of a trained operator. All AUS negative patients undergo Sentinel Lymph Node Biopsy (SLNB), while AUS positive patients bypass SLNB and undergo axillary nodal clearance (ANC) as a standard protocol. We wish to analyse these two groups to see if ANC can be foregone in these patients. AIMS AND OBJECTIVES: To compare and analyse the axillary disease burden in early breast cancer patients, with positive axilla, detected by AUS+ Biopsy versus those patients with normal axillary ultrasound or negative axillary biopsy that underwent ANC due to positive SLNB. MATERIAL AND METHODS: A retrospective review of all patients who underwent axillary lymph node clearance following histologically confirmed positive ultrasound (US) axilla (year 2009-2014) was performed and was compared with data collected for patients with USG negative but SLNB (OSNA- One Step Nucleic Acid Amplification) positive axilla. RESULTS: Axillary clearances performed for positive US axilla yielded significantly more positive lymph nodes than SLNB/OSNA positive axilla (p = 0.00496). These patients also had larger primary tumours (median 33 mm versus 21 mm, p = 0.01242) of a higher grade. Almost half of the patients in AUS positive group (49%) had high axillary nodal burden (>4 LNs). This is in great contrast with AUS negative, SLNB/OSNA positive group where 82.7% of patients had <4 positive nodes with more than half patients (51.7%) having no further positive nodes in their final histopathology specimen. CONCLUSIONS: ANC should be a standard protocol in AUS positive patients as they invariably have high axillary disease burden while ANC can be omitted in case of select AUS negative and SLNB patients. However, further studies with more subjects may be require to substantiate the findings.

Acellular dermal matrix in implant-based immediate breast reconstructions: a comparison of prepectoral and subpectoral approach.

BACKGROUND: Implant-based immediate breast reconstruction (IBR) is the most common technique for post-mastectomy reconstructions in the United Kingdom (UK). Subpectoral implant placement is the conventional method of reconstruction. Placement of implant in the subcutaneous pocket covered by an acellular dermal matrix (ADM) is a relatively recent approach. We report a comparative analysis of prepectoral versus subpectoral approach for implant-based IBR from a single institution in the UK. METHODS: Retrospective analysis from a prospectively maintained data was conducted from January 2015 to May 2017 including all patients who underwent a mastectomy with immediate implant-based IBR in a single breast unit. The demographic details, operative details, immediate and delayed complications were recorded. Specific complications recorded were infection, seroma, unplanned readmission and loss of implant. Factors affecting complication rates and implant loss were analyzed. RESULTS: One hundred and fifty-four reconstructions were included in the analysis with a median follow-up of 11.8 months. Mean age of the cohort was 50 years with a mean BMI of 26.09 kg/m2. Major implant-related complication rate was 12.3% with an implant loss rate of 7.8%. Age more than 50 years (P=0.037) and bilateral reconstructions (P=0.0001) had significant impact on complication rate, on multivariate analysis. Patients with bilateral implants had a significantly higher implant loss rate (P=0.0001). Implant loss rates in the prepectoral group (4.2%) and subpectoral group (10.8%) were not statistically significant (P=0.29). CONCLUSIONS: Prepectoral and subpectoral techniques of IBR have comparable outcomes. Studies reporting on long-term outcomes are planned.

Isolated metachronous breast metastasis from renal cell carcinoma: A report of two cases.

Metastases to the breast are very uncommon as compared to primary tumours. Breast is an unusual site for metastasis from renal cell carcinoma. Only occasional cases are reported in the literature. These metastases must be clearly diagnosed as the treatment of primary breast cancer and metastases differs markedly. Treatment of isolated metastases from renal cell carcinoma is usually surgical resection. We report two cases of isolated metachronous metastases to breast from renal cell carcinoma.

Association of One-Step Nucleic Acid Amplification Detected Micrometastases with Tumour Biology and Adjuvant Chemotherapy.

One-step nucleic acid amplification (OSNA) is an intraoperative technique with a high sensitivity and specificity for sentinel node assessment. The aim of this study was to assess the impact of OSNA on micrometastases detection rates and use of adjuvant chemotherapy. A retrospective review of patients with sentinel node micrometastases over a five-year period was carried out and a comparison of micrometastases detection using OSNA and H&E techniques was made. Out of 1285 patients who underwent sentinel node (SLN) biopsy, 76 patients had micrometastases. Using H&E staining, 36 patients were detected with SLN micrometastases (9/year) in contrast to 40 patients in the OSNA year (40/year) (p < 0.0001), demonstrating a fourfold increase with the use of OSNA. In the OSNA group, there was also a proportional increase in Grade III, triple-negative, ER-negative, and HER-2-positive tumours being diagnosed with micrometastases. Also on interactive PREDICT tool, the number of patients with a predicted 10-year survival benefit of more than 3% with adjuvant chemotherapy increased from 52 to 70 percent. OSNA has resulted in an increased detection rate of micrometastases especially in patients with aggressive tumour biology. This increased the number of patients who had a predicted survival benefit from adjuvant chemotherapy.

Early multicentre experience of pre-pectoral implant based immediate breast reconstruction using Braxon®.

BACKGROUND: The last two decades have seen significant changes in surgical management of breast cancer. The offer of immediate breast reconstruction (IBR) following mastectomy is currently standard practice. Skin sparing and nipple sparing mastectomy with implant-based IBR have emerged as oncologically safe treatment options. Prepectoral implant placement and complete coverage of implant with acellular dermal matrix (ADM) eliminates the need to detach the muscle from underlying chest wall in contrast to the subpectoral technique. We report short-term outcomes of a multicentre study from the United Kingdom (UK) using Braxon® in women having an IBR. METHODS: A prospective study was conducted from December 2015 to October 2016 and included all patients from three breast units in the UK who underwent a mastectomy and an implant-based IBR using Braxon®. The demographic details, co-morbidities, operative details, immediate and delayed complications were recorded. Specific complications recorded were infection, seroma, unplanned readmission and loss of implant. A comparison was made with complications reported in the National Mastectomy and Reconstruction Audit. RESULTS: Seventy-eight IBRs were included in the analysis with a median follow-up of 9.98 months. Mean age of the cohort was 50 years with a mean body mass index of 25.7 kg/m2. Mean implant volume was 365 cc. The inpatient hospital stay was 1.48 days. About 23% of patients had a seroma, 30% had erythema requiring antibiotics and the explant rate was 10.2 percent. Bilateral reconstructions were significantly associated with implant loss and peri-operative complications on univariate analysis. CONCLUSIONS: Our early experience with this novel prepectoral technique using Braxon® has shown it to be an effective technique with complication rates comparable to subpectoral IBR. The advantages of prepectoral implant-based IBR are quicker postoperative recovery and short post-operative hospital stay. Long-term studies are required to assess rippling, post-operative animation, capsular contracture and impact of radiotherapy.

Testing the feasibility of intra-operative sentinel lymph node touch imprint cytology.

INTRODUCTION: Sentinel lymph node biopsy is emerging as the new standard for axillary staging in breast cancer. Intra-operative assessment of the sentinel lymph nodes allows immediate completion of axillary dissection during the same anaesthetic. This project was a quality assurance practice to establish feasibility, time-to-report, as well as accuracy of performing intra-operative assessment of sentinel lymph nodes using touch imprint cytology in our centre. PATIENTS AND METHODS: This prospective audit included 146 sentinel lymph nodes from 74 consecutive patients with invasive breast cancer. All patients underwent axillary sentinel lymph node biopsy using combined blue dye and radiocolloid technique. Results of intra-operative touch imprint cytology using haematoxylin and eosin staining were compared with the definitive histopathology results. RESULTS: Mean time to report touch imprint cytology was 25.7 +/- 6.4 min (range, 15-40 min). Histopathology demonstrated metastasis in 25 sentinel nodes from 17 (23%) patients. Intra-operative touch imprint cytology detected 15 nodes in 11 patients, giving a sensitivity of 60% (nodes) and 66.7% (patients) and specificity of 99.2% (nodes) and 98.2% (patients) based on the number of nodes and patients involved, respectively. Touch imprint cytology failed to show metastatic involvement in 10 nodes from 6 patients; of these, five nodes had micrometastasis (< 2 mm) and the other five had macrometastasis. One touch imprint cytology positive node contained isolated tumour cells only. Using intra-operative touch imprint cytology made a change in treatment of 11(14.9%) patients, and spared second axillary procedure in 7 (9.4%) patients. CONCLUSIONS: Intra-operative sentinel lymph node assessment using touch imprint cytology is feasible within a busy NHS practice. We now offer touch imprint cytology to patients following appropriate counselling.