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Kedrzycki MS, Chon HTW, Leiloglou M, Chalau V, Leff DR, Elson DS. Fluorescence guided surgery imaging systems for breast cancer identification: a systematic review. J Biomed Opt 2024; 29:030901. [PMID: 38440101 PMCID: PMC10911048 DOI: 10.1117/1.jbo.29.3.030901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 01/10/2024] [Accepted: 02/06/2024] [Indexed: 03/06/2024]
Abstract
Significance Breast-conserving surgery (BCS) is limited by high rates of positive margins and re-operative interventions. Fluorescence-guided surgery seeks to detect the entire lesion in real time, thus guiding the surgeons to remove all the tumor at the index procedure. Aim Our aim was to identify the optimal combination of a camera system and fluorophore for fluorescence-guided BCS. Approach A systematic review of medical databases using the terms "fluorescence," "breast cancer," "surgery," and "fluorescence imaging" was performed. Cameras were compared using the ratio between the fluorescent signal from the tumor compared to background fluorescence, as well as diagnostic accuracy measures, such as sensitivity, specificity, and positive predictive value. Results Twenty-one studies identified 14 camera systems using nine different fluorophores. Twelve cameras worked in the infrared spectrum. Ten studies reported on the difference in strength of the fluorescence signal between cancer and normal tissue, with results ranging from 1.72 to 4.7. In addition, nine studies reported on whether any tumor remained in the resection cavity (5.4% to 32.5%). To date, only three studies used the fluorescent signal for guidance during real BCS. Diagnostic accuracy ranged from 63% to 98% sensitivity, 32% to 97% specificity, and 75% to 100% positive predictive value. Conclusion In this systematic review, all the studies reported a clinically significant difference in signal between the tumor and normal tissue using various camera/fluorophore combinations. However, given the heterogeneity in protocols, including camera setup, fluorophore studied, data acquisition, and reporting structure, it was impossible to determine the optimal camera and fluorophore combination for use in BCS. It would be beneficial to develop a standardized reporting structure using similar metrics to provide necessary data for a comparison between camera systems.
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Affiliation(s)
- Martha S. Kedrzycki
- Institute of Global Health Innovation, Imperial College London, Hamlyn Centre, London, United Kingdom
- Imperial College London, Department of Surgery and Cancer, London, United Kingdom
- Imperial College Healthcare NHS Trust, Department of Breast Surgery, London, United Kingdom
| | - Hazel T. W. Chon
- Imperial College London, Department of Surgery and Cancer, London, United Kingdom
| | - Maria Leiloglou
- Institute of Global Health Innovation, Imperial College London, Hamlyn Centre, London, United Kingdom
- Imperial College London, Department of Surgery and Cancer, London, United Kingdom
| | - Vadzim Chalau
- Institute of Global Health Innovation, Imperial College London, Hamlyn Centre, London, United Kingdom
- Imperial College London, Department of Surgery and Cancer, London, United Kingdom
| | - Daniel R. Leff
- Institute of Global Health Innovation, Imperial College London, Hamlyn Centre, London, United Kingdom
- Imperial College London, Department of Surgery and Cancer, London, United Kingdom
- Imperial College Healthcare NHS Trust, Department of Breast Surgery, London, United Kingdom
| | - Daniel S. Elson
- Institute of Global Health Innovation, Imperial College London, Hamlyn Centre, London, United Kingdom
- Imperial College London, Department of Surgery and Cancer, London, United Kingdom
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Che Bakri NA, Kwasnicki RM, Giannas E, Tenang L, Khan N, Moenig C, Imam Z, Dhillon K, Ashrafian H, Darzi A, Leff DR. The Use of Wearable Activity Monitors to Measure Upper Limb Physical Activity After Axillary Lymph Node Dissection and Sentinel Lymph Node Biopsy. Ann Surg Oncol 2023; 30:7036-7045. [PMID: 37507555 PMCID: PMC10562272 DOI: 10.1245/s10434-023-13966-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 07/03/2023] [Indexed: 07/30/2023]
Abstract
BACKGROUND We suspect that morbidity from both sentinel lymph node biopsy (SLNB) and axillary lymph node dissection (ALND) has been inadequately evaluated to date. Current methodologies are subjective and susceptible to bias. Objective assessment using wearable activity monitors (WAMs) would allow quantitative analysis of recovery by measuring physical activity (PA) and could provide evidence for axillary de-escalation. PATIENTS AND METHODS A prospective, single center, observational study was conducted from February 2020 to May 2022. Consecutive patients undergoing breast and/or reconstructive surgery and axillary surgeries were identified from the operating schedules. Patients wore WAMs for an average of 3 days prior to surgery and up to 2 weeks following surgery. In total, 56 patients with breast cancer were recruited, of whom 35 underwent SLNB and 21 ALND. RESULTS Patients who underwent ALND experienced significantly worse PA compared with those who underwent SLNB in week 2 (median 66.4% versus 72.7%, p = 0.015). Subgroup analysis revealed significantly lower PA in simple mastectomy (Mx)-ALND versus Mx-SLNB (median 90.3% versus 70.5%, p = 0.015) in week 2. The PA for SLNB did not return to baseline at 2 weeks after surgery. CONCLUSIONS Compared with SLNB, ALND results in a lower PA level in week 2. The findings also indicate that SLNB has a protracted effect on PA levels, which extend to 2 weeks postoperatively. Monitoring recovery objectively following breast cancer surgery provides patients and surgeons with more information regarding the predicted outcomes of their surgery, which can drive the development of a personalized rehabilitation program.
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Affiliation(s)
- Nur Amalina Che Bakri
- Department of Surgery and Cancer, Imperial College London, London, UK.
- Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK.
| | - Richard M Kwasnicki
- Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
| | - Emmanuel Giannas
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Luqman Tenang
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Naairah Khan
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Catharina Moenig
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Zoha Imam
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Kieran Dhillon
- Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
| | - Hutan Ashrafian
- Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
| | - Ara Darzi
- Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
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Che Bakri NA, Kwasnicki RM, Giannas E, Tenang L, Khan N, Moenig C, Imam Z, Dhillon K, Ashrafian H, Darzi A, Leff DR. ASO Author Reflections: Objective Outcome Measure of Upper Limb Function Following Axillary Lymph Node Dissection and Sentinel Lymph Node Biopsy. Ann Surg Oncol 2023; 30:7133-7134. [PMID: 37482598 PMCID: PMC10562312 DOI: 10.1245/s10434-023-13984-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/25/2023]
Affiliation(s)
- Nur Amalina Che Bakri
- Academic Surgical Unit, Department of Surgery and Cancer, Imperial College London, London, UK.
- Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK.
| | - Richard M Kwasnicki
- Academic Surgical Unit, Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
| | - Emmanuel Giannas
- Academic Surgical Unit, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Luqman Tenang
- Academic Surgical Unit, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Naairah Khan
- Academic Surgical Unit, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Catharina Moenig
- Academic Surgical Unit, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Zoha Imam
- Academic Surgical Unit, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Kieran Dhillon
- Academic Surgical Unit, Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
| | - Hutan Ashrafian
- Academic Surgical Unit, Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
| | - Ara Darzi
- Academic Surgical Unit, Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
| | - Daniel R Leff
- Academic Surgical Unit, Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
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Che Bakri NA, Kwasnicki RM, Giannas E, Tenang L, Khan N, Moenig C, Imam Z, Dhillon K, Ashrafian H, Darzi A, Leff DR. ASO Visual Abstract: The Use of Wearable Activity Monitors to Measure the Upper Limb Physical Activity After Axillary Lymph Node Dissection and Sentinel Lymph Node Biopsy. Ann Surg Oncol 2023; 30:7144-7145. [PMID: 37596452 DOI: 10.1245/s10434-023-14112-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/20/2023]
Affiliation(s)
- Nur Amalina Che Bakri
- Department of Surgery and Cancer, Imperial College London, London, UK.
- Academic Surgical Unit, Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK.
| | - Richard M Kwasnicki
- Department of Surgery and Cancer, Imperial College London, London, UK
- Academic Surgical Unit, Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
| | - Emmanuel Giannas
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Luqman Tenang
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Naairah Khan
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Catharina Moenig
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Zoha Imam
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Kieran Dhillon
- Department of Surgery and Cancer, Imperial College London, London, UK
- Academic Surgical Unit, Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
| | - Hutan Ashrafian
- Department of Surgery and Cancer, Imperial College London, London, UK
- Academic Surgical Unit, Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
| | - Ara Darzi
- Department of Surgery and Cancer, Imperial College London, London, UK
- Academic Surgical Unit, Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College London, London, UK
- Academic Surgical Unit, Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
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Shanthakumar D, Leiloglou M, Kelliher C, Darzi A, Elson DS, Leff DR. A Comparison of Spectroscopy and Imaging Techniques Utilizing Spectrally Resolved Diffusely Reflected Light for Intraoperative Margin Assessment in Breast-Conserving Surgery: A Systematic Review and Meta-Analysis. Cancers (Basel) 2023; 15:cancers15112884. [PMID: 37296847 DOI: 10.3390/cancers15112884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/12/2023] [Accepted: 05/16/2023] [Indexed: 06/12/2023] Open
Abstract
Up to 19% of patients require re-excision surgery due to positive margins in breast-conserving surgery (BCS). Intraoperative margin assessment tools (IMAs) that incorporate tissue optical measurements could help reduce re-excision rates. This review focuses on methods that use and assess spectrally resolved diffusely reflected light for breast cancer detection in the intraoperative setting. Following PROSPERO registration (CRD42022356216), an electronic search was performed. The modalities searched for were diffuse reflectance spectroscopy (DRS), multispectral imaging (MSI), hyperspectral imaging (HSI), and spatial frequency domain imaging (SFDI). The inclusion criteria encompassed studies of human in vivo or ex vivo breast tissues, which presented data on accuracy. The exclusion criteria were contrast use, frozen samples, and other imaging adjuncts. 19 studies were selected following PRISMA guidelines. Studies were divided into point-based (spectroscopy) or whole field-of-view (imaging) techniques. A fixed-or random-effects model analysis generated pooled sensitivity/specificity for the different modalities, following heterogeneity calculations using the Q statistic. Overall, imaging-based techniques had better pooled sensitivity/specificity (0.90 (CI 0.76-1.03)/0.92 (CI 0.78-1.06)) compared with probe-based techniques (0.84 (CI 0.78-0.89)/0.85 (CI 0.79-0.91)). The use of spectrally resolved diffusely reflected light is a rapid, non-contact technique that confers accuracy in discriminating between normal and malignant breast tissue, and it constitutes a potential IMA tool.
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Affiliation(s)
- Dhurka Shanthakumar
- Department of Surgery and Cancer, Imperial College London, London W12 0HS, UK
- The Hamlyn Centre, Imperial College London, London SW7 2AZ, UK
| | - Maria Leiloglou
- Department of Surgery and Cancer, Imperial College London, London W12 0HS, UK
- The Hamlyn Centre, Imperial College London, London SW7 2AZ, UK
| | - Colm Kelliher
- Department of Surgery and Cancer, Imperial College London, London W12 0HS, UK
| | - Ara Darzi
- Department of Surgery and Cancer, Imperial College London, London W12 0HS, UK
- The Hamlyn Centre, Imperial College London, London SW7 2AZ, UK
| | - Daniel S Elson
- Department of Surgery and Cancer, Imperial College London, London W12 0HS, UK
- The Hamlyn Centre, Imperial College London, London SW7 2AZ, UK
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College London, London W12 0HS, UK
- The Hamlyn Centre, Imperial College London, London SW7 2AZ, UK
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Dave RV, Elsberger B, Taxiarchi VP, Gandhi A, Kirwan CC, Kim B, Camacho EM, Coles CE, Copson E, Courtney A, Horgan K, Fairbrother P, Holcombe C, Kirkham JJ, Leff DR, McIntosh SA, O'Connell R, Pardo R, Potter S, Rattay T, Sharma N, Vidya R, Cutress RI. Bridging pre-surgical endocrine therapy for breast cancer during the COVID-19 pandemic: outcomes from the B-MaP-C study. Breast Cancer Res Treat 2023; 199:265-279. [PMID: 37010651 PMCID: PMC10068712 DOI: 10.1007/s10549-023-06893-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 02/11/2023] [Indexed: 04/04/2023]
Abstract
PURPOSE The B-MaP-C study investigated changes to breast cancer care that were necessitated by the COVID-19 pandemic. Here we present a follow-up analysis of those patients commenced on bridging endocrine therapy (BrET), whilst they were awaiting surgery due to reprioritisation of resources. METHODS This multicentre, multinational cohort study recruited 6045 patients from the UK, Spain and Portugal during the peak pandemic period (Feb-July 2020). Patients on BrET were followed up to investigate the duration of, and response to, BrET. This included changes in tumour size to reflect downstaging potential, and changes in cellular proliferation (Ki67), as a marker of prognosis. RESULTS 1094 patients were prescribed BrET, over a median period of 53 days (IQR 32-81 days). The majority of patients (95.6%) had strong ER expression (Allred score 7-8/8). Very few patients required expedited surgery, due to lack of response (1.2%) or due to lack of tolerance/compliance (0.8%). There were small reductions in median tumour size after 3 months' treatment duration; median of 4 mm [IQR - 20, 4]. In a small subset of patients (n = 47), a drop in cellular proliferation (Ki67) occurred in 26 patients (55%), from high (Ki67 ≥ 10%) to low (< 10%), with at least one month's duration of BrET. DISCUSSION This study describes real-world usage of pre-operative endocrine therapy as necessitated by the pandemic. BrET was found to be tolerable and safe. The data support short-term (≤ 3 months) usage of pre-operative endocrine therapy. Longer-term use should be investigated in future trials.
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Affiliation(s)
- Rajiv V Dave
- The Nightingale Breast Cancer Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, M23 9LT, UK.
- Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oglesby Cancer Research Building, Manchester Cancer Research Centre, Wilmslow Road, Manchester, M20 4BX, UK.
| | - Beatrix Elsberger
- Aberdeen Royal Infirmary/University of Aberdeen, Breast Unit, Foresterhill Road, Aberdeen, AB25 2ZN, UK
| | - Vicky P Taxiarchi
- Division of Population Health, Health Services Research, and Primary Care, School of Health Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - Ashu Gandhi
- The Nightingale Breast Cancer Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, M23 9LT, UK
- Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oglesby Cancer Research Building, Manchester Cancer Research Centre, Wilmslow Road, Manchester, M20 4BX, UK
| | - Cliona C Kirwan
- The Nightingale Breast Cancer Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, M23 9LT, UK
- Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oglesby Cancer Research Building, Manchester Cancer Research Centre, Wilmslow Road, Manchester, M20 4BX, UK
| | - Baek Kim
- Department of Breast Surgery, St. James's University Hospital, Leeds, LS9 7TF, UK
| | - Elizabeth M Camacho
- Division of Population Health, Health Services Research, and Primary Care, School of Health Sciences, University of Manchester, Manchester, M13 9PL, UK
| | | | - Ellen Copson
- Cancer Sciences Academic Unit, University of Southampton and University Hospital Southampton, Tremona Road, Southampton, SO16 6YD, UK
| | - Alona Courtney
- Department of Surgery and Cancer, Imperial College, London, UK
| | - Kieran Horgan
- Department of Breast Surgery, St. James's University Hospital, Leeds, LS9 7TF, UK
| | | | - Chris Holcombe
- Linda McCartney Centre, Royal Liverpool and Broadgreen University Hospital, Prescot Street, Liverpool, L7 8XP, UK
| | - Jamie J Kirkham
- Division of Population Health, Health Services Research, and Primary Care, School of Health Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College, London, UK
| | - Stuart A McIntosh
- Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7AE, UK
| | - Rachel O'Connell
- Department of Breast Surgery, The Royal Marsden NHS Foundation Trust, Downs Road, Sutton, Surrey, SM2 5PT, UK
| | - Ricardo Pardo
- Bolton NHS Foundation Trust, Minerva Rd, Farnworth, Bolton, BL4 0JR, UK
| | - Shelley Potter
- Bristol Centre for Surgical Research, Population Health Sciences, Bristol Medical School, Canynge Hall, Whatley Road, Bristol, BS8 2PS, UK
- Bristol Breast Care Centre, North Bristol NHS Trust, Southmead Road, Bristol, BS10 5NB, UK
| | - Tim Rattay
- Leicester Cancer Research Centre, Clinical Sciences Building, University of Leicester, Leicester, LE2 2LX, UK
| | - Nisha Sharma
- Breast Unit, Level 1 Chancellor Wing, St James's Hospital, Leeds, LS9 7TF, UK
| | - Raghavan Vidya
- The Royal Wolverhampton NHS Trust, Wolverhampton Road, Wolverhampton, WV10 0QP, UK
| | - Ramsey I Cutress
- Cancer Sciences Academic Unit, University of Southampton and University Hospital Southampton, Tremona Road, Southampton, SO16 6YD, UK
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Che Bakri NA, Kwasnicki RM, Khan N, Ghandour O, Lee A, Grant Y, Dawidziuk A, Darzi A, Ashrafian H, Leff DR. Impact of Axillary Lymph Node Dissection and Sentinel Lymph Node Biopsy on Upper Limb Morbidity in Breast Cancer Patients: A Systematic Review and Meta-Analysis. Ann Surg 2023; 277:572-580. [PMID: 35946806 PMCID: PMC9994843 DOI: 10.1097/sla.0000000000005671] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To evaluate the impact of axillary lymph node dissection (ALND) and sentinel lymph node biopsy (SLNB) on upper limb (UL) morbidity in breast cancer patients. BACKGROUND Axillary de-escalation is motivated by a desire to reduce harm of ALND. Understanding the impact of axillary surgery and disparities in operative procedures on postoperative arm morbidity would better direct resources to the point of need and cement the need for de-escalation strategies. METHODS Embase, MEDLINE, CINAHL, and PsychINFO were searched from 1990 until March 2020. Included studies were randomized-controlled and observational studies focusing on UL morbidities, in breast surgery patients. The study followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The prevalence of UL morbidity comparing SLNB and ALND at <12 months, 12 to 24 months, and beyond 24 months were analyzed. RESULTS Sixty-seven studies were included. All studies reported a higher rate of lymphedema and pain after ALND compared with SLNB. The difference in lymphedema and pain prevalence between SLNB and ALND was 13.7% (95% confidence interval: 10.5-16.8, P <0.005) and 24.2% (95% confidence interval: 12.1-36.3, P <0.005), respectively. Pooled estimates for prevalence of reduced strength and range of motion after SLNB and ALND were 15.2% versus 30.9% and 17.1% versus 29.8%, respectively. Type of axillary surgery, greater body mass index, and radiotherapy were some of the predictors for UL morbidities. CONCLUSIONS Prevalence of lymphedema after ALND was higher than previously estimated. ALND patients experienced greater rates of lymphedema, pain, reduced strength, and range of motion compared with SLNB. The findings support the continued drive to de-escalate axillary surgery.
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Affiliation(s)
- Nur Amalina Che Bakri
- Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary’s Hospital, London, UK
| | - Richard M. Kwasnicki
- Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary’s Hospital, London, UK
| | - Naairah Khan
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Omar Ghandour
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Alice Lee
- Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary’s Hospital, London, UK
| | - Yasmin Grant
- Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary’s Hospital, London, UK
| | | | - Ara Darzi
- Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary’s Hospital, London, UK
| | - Hutan Ashrafian
- Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary’s Hospital, London, UK
| | - Daniel R. Leff
- Department of Surgery and Cancer, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, St. Mary’s Hospital, London, UK
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Goble M, Caddick V, Patel R, Modi H, Darzi A, Orihuela-Espina F, Leff DR. Optical neuroimaging and neurostimulation in surgical training and assessment: A state-of-the-art review. Front Neurogenom 2023; 4:1142182. [PMID: 38234498 PMCID: PMC10790870 DOI: 10.3389/fnrgo.2023.1142182] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 03/03/2023] [Indexed: 01/19/2024]
Abstract
Introduction Functional near-infrared spectroscopy (fNIRS) is a non-invasive optical neuroimaging technique used to assess surgeons' brain function. The aim of this narrative review is to outline the effect of expertise, stress, surgical technology, and neurostimulation on surgeons' neural activation patterns, and highlight key progress areas required in surgical neuroergonomics to modulate training and performance. Methods A literature search of PubMed and Embase was conducted to identify neuroimaging studies using fNIRS and neurostimulation in surgeons performing simulated tasks. Results Novice surgeons exhibit greater haemodynamic responses across the pre-frontal cortex than experts during simple surgical tasks, whilst expert surgical performance is characterized by relative prefrontal attenuation and upregulation of activation foci across other regions such as the supplementary motor area. The association between PFC activation and mental workload follows an inverted-U shaped curve, activation increasing then attenuating past a critical inflection point at which demands outstrip cognitive capacity Neuroimages are sensitive to the impact of laparoscopic and robotic tools on cognitive workload, helping inform the development of training programs which target neural learning curves. FNIRS differs in comparison to current tools to assess proficiency by depicting a cognitive state during surgery, enabling the development of cognitive benchmarks of expertise. Finally, neurostimulation using transcranial direct-current-stimulation may accelerate skill acquisition and enhance technical performance. Conclusion FNIRS can inform the development of surgical training programs which modulate stress responses, cognitive learning curves, and motor skill performance. Improved data processing with machine learning offers the possibility of live feedback regarding surgeons' cognitive states during operative procedures.
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Affiliation(s)
- Mary Goble
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
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Godden AR, Micha A, O'Connell RL, Mohammed K, Kirby AM, Thiruchelvam PTR, Leff DR, MacNeill FA, Rusby JE. Pre-operative Radiotherapy And Deep Inferior Epigastric Artery Perforator (DIEP) flAp study (PRADA): Aesthetic outcome and patient satisfaction at one year. J Plast Reconstr Aesthet Surg 2023; 78:19-28. [PMID: 36764040 DOI: 10.1016/j.bjps.2022.11.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 10/03/2022] [Accepted: 11/17/2022] [Indexed: 01/21/2023]
Abstract
INTRODUCTION The optimal combination of radiotherapy and breast reconstruction has not yet been defined. Post-mastectomy radiotherapy (PMRT) has deleterious effects on breast reconstruction, leading to caution amongst surgeons. Pre-operative radiotherapy (PRT) is a growing area of interest, is demonstrated to be safe, and spares autologous flaps from radiotherapy. This study evaluates the aesthetic outcome of PRT and deep inferior epigastric artery perforator (DIEP) flap reconstruction within the Pre-operative Radiotherapy And Deep Inferior Epigastric artery Perforator (DIEP) flAp (PRADA) cohort. METHODS PRADA was an observational cohort study designed to evaluate the feasibility and safety of PRT for women undergoing neoadjuvant chemotherapy and DIEP reconstruction. Panel evaluation of 3D surface images (3D-SIs) and patient-reported outcome measures (BREAST-Q) for a subset of women in the study were compared with those of a DIEP-PMRT cohort who had undergone DIEP reconstruction and PMRT. RESULTS Seventeen out of 33 women from the PRADA study participated in this planned substudy. Twenty-eight women formed the DIEP-PMRT cohort (median follow-up 23 months). The median (inter-quartile range [IQR]) 'satisfaction with breasts' score at 12 months for the PRADA cohort was significantly better than the DIEP-PMRT cohort (77 [72-87] versus 64 [54-71], respectively), p=0.01). Median [IQR] panel evaluation (5-point scale) was also significantly better for the PRADA cohort than for the DIEP-PMRT cohort (4.3 [3.9-4.6] versus 3.6 [2.8-4] p=0.003). CONCLUSIONS Aesthetic outcome for the PRADA cohort was reported to be 'good' or 'excellent' in 93% of cases using a bespoke panel assessment with robust methodology. Patient satisfaction at one year is encouraging and superior to DIEP-PMRT at 23 months. Switching surgery-radiotherapy sequencing leads to similar breast aesthetic outcomes and warrants further large-scale, multi-centre evaluation in a randomised trial.
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Affiliation(s)
- Amy R Godden
- The Royal Marsden NHS Foundation Trust, United Kingdom; Institute of Cancer Research, United Kingdom
| | | | - Rachel L O'Connell
- The Royal Marsden NHS Foundation Trust, United Kingdom; Institute of Cancer Research, United Kingdom
| | | | - Anna M Kirby
- The Royal Marsden NHS Foundation Trust, United Kingdom; Institute of Cancer Research, United Kingdom
| | | | - Daniel R Leff
- Imperial College Healthcare NHS Trust, London, United Kingdom
| | | | - Jennifer E Rusby
- The Royal Marsden NHS Foundation Trust, United Kingdom; Institute of Cancer Research, United Kingdom.
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10
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Kedrzycki MS, Elson DS, Leff DR. Guidance in breast-conserving surgery: tumour localization versus identification. Br J Surg 2022:6901362. [PMID: 36515686 PMCID: PMC10361673 DOI: 10.1093/bjs/znac409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/06/2022] [Accepted: 11/01/2022] [Indexed: 12/15/2022]
Affiliation(s)
- Martha S Kedrzycki
- Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Charing Cross Hospital, Imperial Healthcare Trust, London, UK
| | - Daniel S Elson
- Department of Surgery and Cancer, Imperial College London, London, UK.,Hamlyn Centre, Imperial College London, Institute of Global Health Innovation, London, UK
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Charing Cross Hospital, Imperial Healthcare Trust, London, UK
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11
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Leiloglou M, Kedrzycki MS, Elson DS, Leff DR. ASO Author Reflections: Towards Fluorescence Guided Tumor Identification for Precision Breast Conserving Surgery. Ann Surg Oncol 2022; 29:564-565. [PMID: 34406539 PMCID: PMC9675703 DOI: 10.1245/s10434-021-10626-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 07/21/2021] [Indexed: 11/18/2022]
Affiliation(s)
- Maria Leiloglou
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, South Kensington Campus, London, UK. .,Department of Surgery and Cancer, Imperial College London, London, UK.
| | - Martha S Kedrzycki
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, South Kensington Campus, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Daniel S Elson
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, South Kensington Campus, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | - Daniel R Leff
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, South Kensington Campus, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
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12
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Leiloglou M, Kedrzycki MS, Chalau V, Chiarini N, Thiruchelvam PTR, Hadjiminas DJ, Hogben KR, Rashid F, Ramakrishnan R, Darzi AW, Leff DR, Elson DS. Indocyanine green fluorescence image processing techniques for breast cancer macroscopic demarcation. Sci Rep 2022; 12:8607. [PMID: 35597783 PMCID: PMC9124184 DOI: 10.1038/s41598-022-12504-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 05/05/2022] [Indexed: 12/13/2022] Open
Abstract
Re-operation due to disease being inadvertently close to the resection margin is a major challenge in breast conserving surgery (BCS). Indocyanine green (ICG) fluorescence imaging could be used to visualize the tumor boundaries and help surgeons resect disease more efficiently. In this work, ICG fluorescence and color images were acquired with a custom-built camera system from 40 patients treated with BCS. Images were acquired from the tumor in-situ, surgical cavity post-excision, freshly excised tumor and histopathology tumour grossing. Fluorescence image intensity and texture were used as individual or combined predictors in both logistic regression (LR) and support vector machine models to predict the tumor extent. ICG fluorescence spectra in formalin-fixed histopathology grossing tumor were acquired and analyzed. Our results showed that ICG remains in the tissue after formalin fixation. Therefore, tissue imaging could be validated in freshly excised and in formalin-fixed grossing tumor. The trained LR model with combined fluorescence intensity (pixel values) and texture (slope of power spectral density curve) identified the tumor's extent in the grossing images with pixel-level resolution and sensitivity, specificity of 0.75 ± 0.3, 0.89 ± 0.2.This model was applied on tumor in-situ and surgical cavity (post-excision) images to predict tumor presence.
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Affiliation(s)
- Maria Leiloglou
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK. .,Department of Surgery and Cancer, Imperial College London, London, UK.
| | - Martha S Kedrzycki
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Vadzim Chalau
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | - Nicolas Chiarini
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Paul T R Thiruchelvam
- Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Dimitri J Hadjiminas
- Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Katy R Hogben
- Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Faiza Rashid
- Department of Histopathology, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Rathi Ramakrishnan
- Department of Histopathology, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Ara W Darzi
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | - Daniel R Leff
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Daniel S Elson
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
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13
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Thiruchelvam PTR, Leff DR, Godden AR, Cleator S, Wood SH, Kirby AM, Jallali N, Somaiah N, Hunter JE, Henry FP, Micha A, O'Connell RL, Mohammed K, Patani N, Tan MLH, Gujral D, Ross G, James SE, Khan AA, Rusby JE, Hadjiminas DJ, MacNeill FA. Primary radiotherapy and deep inferior epigastric perforator flap reconstruction for patients with breast cancer (PRADA): a multicentre, prospective, non-randomised, feasibility study. Lancet Oncol 2022; 23:682-690. [PMID: 35397804 PMCID: PMC9630150 DOI: 10.1016/s1470-2045(22)00145-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 02/01/2022] [Accepted: 02/28/2022] [Indexed: 12/20/2022]
Abstract
BACKGROUND Radiotherapy before mastectomy and autologous free-flap breast reconstruction can avoid adverse radiation effects on healthy donor tissues and delays to adjuvant radiotherapy. However, evidence for this treatment sequence is sparse. We aimed to explore the feasibility of preoperative radiotherapy followed by skin-sparing mastectomy and deep inferior epigastric perforator (DIEP) flap reconstruction in patients with breast cancer requiring mastectomy. METHODS We conducted a prospective, non-randomised, feasibility study at two National Health Service trusts in the UK. Eligible patients were women aged older than 18 years with a laboratory diagnosis of primary breast cancer requiring mastectomy and post-mastectomy radiotherapy, who were suitable for DIEP flap reconstruction. Preoperative radiotherapy started 3-4 weeks after neoadjuvant chemotherapy and was delivered to the breast, plus regional nodes as required, at 40 Gy in 15 fractions (over 3 weeks) or 42·72 Gy in 16 fractions (over 3·2 weeks). Adverse skin radiation toxicity was assessed preoperatively using the Radiation Therapy Oncology Group toxicity grading system. Skin-sparing mastectomy and DIEP flap reconstruction were planned for 2-6 weeks after completion of preoperative radiotherapy. The primary endpoint was the proportion of open breast wounds greater than 1 cm width requiring a dressing at 4 weeks after surgery, assessed in all participants. This study is registered with ClinicalTrials.gov, NCT02771938, and is closed to recruitment. FINDINGS Between Jan 25, 2016, and Dec 11, 2017, 33 patients were enrolled. At 4 weeks after surgery, four (12·1%, 95% CI 3·4-28·2) of 33 patients had an open breast wound greater than 1 cm. One (3%) patient had confluent moist desquamation (grade 3). There were no serious treatment-related adverse events and no treatment-related deaths. INTERPRETATION Preoperative radiotherapy followed by skin-sparing mastectomy and immediate DIEP flap reconstruction is feasible and technically safe, with rates of breast open wounds similar to those reported with post-mastectomy radiotherapy. A randomised trial comparing preoperative radiotherapy with post-mastectomy radiotherapy is required to precisely determine and compare surgical, oncological, and breast reconstruction outcomes, including quality of life. FUNDING Cancer Research UK, National Institute for Health Research.
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Affiliation(s)
| | - Daniel R Leff
- Department of Breast Surgery, Imperial College Healthcare NHS Trust, London, UK; BioSurgery and Surgical Technology, Department of Surgery, Imperial College London, London, UK
| | - Amy R Godden
- Department of Breast Surgery, Royal Marsden NHS Foundation Trust, London, UK
| | - Susan Cleator
- Department of Clinical Oncology, Imperial College Healthcare NHS Trust, London, UK
| | - Simon H Wood
- Department of Plastic and Reconstructive Surgery, Imperial College Healthcare NHS Trust, London, UK
| | | | - Navid Jallali
- Department of Plastic and Reconstructive Surgery, Imperial College Healthcare NHS Trust, London, UK
| | | | - Judith E Hunter
- Department of Plastic and Reconstructive Surgery, Imperial College Healthcare NHS Trust, London, UK
| | - Francis P Henry
- Department of Plastic and Reconstructive Surgery, Imperial College Healthcare NHS Trust, London, UK
| | - Aikaterini Micha
- Department of Breast Surgery, Royal Marsden NHS Foundation Trust, London, UK
| | - Rachel L O'Connell
- Department of Breast Surgery, Royal Marsden NHS Foundation Trust, London, UK
| | | | - Neill Patani
- Department of Breast Surgery, University College London Hospitals NHS Trust, London, UK
| | - Melissa L H Tan
- Department of Breast Surgery, Birmingham City Hospital, Birmingham, UK
| | - Dorothy Gujral
- Department of Clinical Oncology, Imperial College Healthcare NHS Trust, London, UK
| | | | - Stuart E James
- Department of Plastic and Reconstructive Surgery, Royal Marsden NHS Foundation Trust, London, UK
| | - Aadil A Khan
- Department of Plastic and Reconstructive Surgery, Royal Marsden NHS Foundation Trust, London, UK
| | - Jennifer E Rusby
- Department of Breast Surgery, Royal Marsden NHS Foundation Trust, London, UK; The Institute of Cancer Research, London, UK
| | | | - Fiona A MacNeill
- Department of Breast Surgery, Royal Marsden NHS Foundation Trust, London, UK
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14
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Lee A, Kwasnicki RM, Khan H, Grant Y, Chan A, Fanshawe AEE, Leff DR. Outcome reporting in therapeutic mammaplasty: A systematic review. Eur J Surg Oncol 2022. [DOI: 10.1016/j.ejso.2022.03.173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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15
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Maier-Hein L, Eisenmann M, Sarikaya D, März K, Collins T, Malpani A, Fallert J, Feussner H, Giannarou S, Mascagni P, Nakawala H, Park A, Pugh C, Stoyanov D, Vedula SS, Cleary K, Fichtinger G, Forestier G, Gibaud B, Grantcharov T, Hashizume M, Heckmann-Nötzel D, Kenngott HG, Kikinis R, Mündermann L, Navab N, Onogur S, Roß T, Sznitman R, Taylor RH, Tizabi MD, Wagner M, Hager GD, Neumuth T, Padoy N, Collins J, Gockel I, Goedeke J, Hashimoto DA, Joyeux L, Lam K, Leff DR, Madani A, Marcus HJ, Meireles O, Seitel A, Teber D, Ückert F, Müller-Stich BP, Jannin P, Speidel S. Surgical data science - from concepts toward clinical translation. Med Image Anal 2022; 76:102306. [PMID: 34879287 PMCID: PMC9135051 DOI: 10.1016/j.media.2021.102306] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 11/03/2021] [Accepted: 11/08/2021] [Indexed: 02/06/2023]
Abstract
Recent developments in data science in general and machine learning in particular have transformed the way experts envision the future of surgery. Surgical Data Science (SDS) is a new research field that aims to improve the quality of interventional healthcare through the capture, organization, analysis and modeling of data. While an increasing number of data-driven approaches and clinical applications have been studied in the fields of radiological and clinical data science, translational success stories are still lacking in surgery. In this publication, we shed light on the underlying reasons and provide a roadmap for future advances in the field. Based on an international workshop involving leading researchers in the field of SDS, we review current practice, key achievements and initiatives as well as available standards and tools for a number of topics relevant to the field, namely (1) infrastructure for data acquisition, storage and access in the presence of regulatory constraints, (2) data annotation and sharing and (3) data analytics. We further complement this technical perspective with (4) a review of currently available SDS products and the translational progress from academia and (5) a roadmap for faster clinical translation and exploitation of the full potential of SDS, based on an international multi-round Delphi process.
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Affiliation(s)
- Lena Maier-Hein
- Division of Computer Assisted Medical Interventions (CAMI), German Cancer Research Center (DKFZ), Heidelberg, Germany; Faculty of Mathematics and Computer Science, Heidelberg University, Heidelberg, Germany; Medical Faculty, Heidelberg University, Heidelberg, Germany.
| | - Matthias Eisenmann
- Division of Computer Assisted Medical Interventions (CAMI), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Duygu Sarikaya
- Department of Computer Engineering, Faculty of Engineering, Gazi University, Ankara, Turkey; LTSI, Inserm UMR 1099, University of Rennes 1, Rennes, France
| | - Keno März
- Division of Computer Assisted Medical Interventions (CAMI), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | | | - Anand Malpani
- The Malone Center for Engineering in Healthcare, The Johns Hopkins University, Baltimore, Maryland, USA
| | | | - Hubertus Feussner
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Stamatia Giannarou
- The Hamlyn Centre for Robotic Surgery, Imperial College London, London, United Kingdom
| | - Pietro Mascagni
- ICube, University of Strasbourg, CNRS, France; IHU Strasbourg, Strasbourg, France
| | | | - Adrian Park
- Department of Surgery, Anne Arundel Health System, Annapolis, Maryland, USA; Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Carla Pugh
- Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Danail Stoyanov
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences, University College London, London, United Kingdom
| | - Swaroop S Vedula
- The Malone Center for Engineering in Healthcare, The Johns Hopkins University, Baltimore, Maryland, USA
| | - Kevin Cleary
- The Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Hospital, Washington, D.C., USA
| | | | - Germain Forestier
- L'Institut de Recherche en Informatique, Mathématiques, Automatique et Signal (IRIMAS), University of Haute-Alsace, Mulhouse, France; Faculty of Information Technology, Monash University, Clayton, Victoria, Australia
| | - Bernard Gibaud
- LTSI, Inserm UMR 1099, University of Rennes 1, Rennes, France
| | - Teodor Grantcharov
- University of Toronto, Toronto, Ontario, Canada; The Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Ontario, Canada
| | - Makoto Hashizume
- Kyushu University, Fukuoka, Japan; Kitakyushu Koga Hospital, Fukuoka, Japan
| | - Doreen Heckmann-Nötzel
- Division of Computer Assisted Medical Interventions (CAMI), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Hannes G Kenngott
- Department for General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Ron Kikinis
- Department of Radiology, Brigham and Women's Hospital, and Harvard Medical School, Boston, Massachusetts, USA
| | | | - Nassir Navab
- Computer Aided Medical Procedures, Technical University of Munich, Munich, Germany; Department of Computer Science, The Johns Hopkins University, Baltimore, Maryland, USA
| | - Sinan Onogur
- Division of Computer Assisted Medical Interventions (CAMI), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Tobias Roß
- Division of Computer Assisted Medical Interventions (CAMI), German Cancer Research Center (DKFZ), Heidelberg, Germany; Medical Faculty, Heidelberg University, Heidelberg, Germany
| | - Raphael Sznitman
- ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
| | - Russell H Taylor
- Department of Computer Science, The Johns Hopkins University, Baltimore, Maryland, USA
| | - Minu D Tizabi
- Division of Computer Assisted Medical Interventions (CAMI), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Martin Wagner
- Department for General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Gregory D Hager
- The Malone Center for Engineering in Healthcare, The Johns Hopkins University, Baltimore, Maryland, USA; Department of Computer Science, The Johns Hopkins University, Baltimore, Maryland, USA
| | - Thomas Neumuth
- Innovation Center Computer Assisted Surgery (ICCAS), University of Leipzig, Leipzig, Germany
| | - Nicolas Padoy
- ICube, University of Strasbourg, CNRS, France; IHU Strasbourg, Strasbourg, France
| | - Justin Collins
- Division of Surgery and Interventional Science, University College London, London, United Kingdom
| | - Ines Gockel
- Department of Visceral, Transplant, Thoracic and Vascular Surgery, Leipzig University Hospital, Leipzig, Germany
| | - Jan Goedeke
- Pediatric Surgery, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University, Munich, Germany
| | - Daniel A Hashimoto
- University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, Ohio, USA; Surgical AI and Innovation Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Luc Joyeux
- My FetUZ Fetal Research Center, Department of Development and Regeneration, Biomedical Sciences, KU Leuven, Leuven, Belgium; Center for Surgical Technologies, Faculty of Medicine, KU Leuven, Leuven, Belgium; Department of Obstetrics and Gynecology, Division Woman and Child, Fetal Medicine Unit, University Hospitals Leuven, Leuven, Belgium; Michael E. DeBakey Department of Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - Kyle Lam
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Daniel R Leff
- Department of BioSurgery and Surgical Technology, Imperial College London, London, United Kingdom; Hamlyn Centre for Robotic Surgery, Imperial College London, London, United Kingdom; Breast Unit, Imperial Healthcare NHS Trust, London, United Kingdom
| | - Amin Madani
- Department of Surgery, University Health Network, Toronto, Ontario, Canada
| | - Hani J Marcus
- National Hospital for Neurology and Neurosurgery, and UCL Queen Square Institute of Neurology, London, United Kingdom
| | - Ozanan Meireles
- Massachusetts General Hospital, and Harvard Medical School, Boston, Massachusetts, USA
| | - Alexander Seitel
- Division of Computer Assisted Medical Interventions (CAMI), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Dogu Teber
- Department of Urology, City Hospital Karlsruhe, Karlsruhe, Germany
| | - Frank Ückert
- Institute for Applied Medical Informatics, Hamburg University Hospital, Hamburg, Germany
| | - Beat P Müller-Stich
- Department for General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Pierre Jannin
- LTSI, Inserm UMR 1099, University of Rennes 1, Rennes, France
| | - Stefanie Speidel
- Division of Translational Surgical Oncology, National Center for Tumor Diseases (NCT/UCC) Dresden, Dresden, Germany; Centre for Tactile Internet with Human-in-the-Loop (CeTI), TU Dresden, Dresden, Germany
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Grant Y, Thiruchelvam PTR, Kovacevic L, Mossialos E, Al-Mufti R, Hogben K, Hadjiminas DJ, Leff DR. OUP accepted manuscript. BJS Open 2022; 6:6604296. [PMID: 35674701 PMCID: PMC9176201 DOI: 10.1093/bjsopen/zrac073] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/08/2022] [Accepted: 04/20/2022] [Indexed: 11/13/2022] Open
Abstract
Background Following therapeutic mammoplasty (TM), the contralateral breast may require a later balancing procedure to optimize shape and symmetry. The alternative is to offer patients simultaneous TM with immediate contralateral symmetrization via a dual-surgeon approach, with the goal of reducing costs and minimizing the number of subsequent hospital appointments in an era of COVID-19 surges. The aim of this cost–consequence analysis is to characterize the cost–benefit of immediate bilateral symmetrization dual-operator mammoplasty versus staged unilateral single operator for breast cancer surgery. Method A prospective single-centre observational study was conducted at an academic teaching centre for breast cancer surgery in the UK. Pseudonymized data for clinicopathological variables and procedural care information, including the type of initial breast-conserving surgery and subsequent reoperation(s), were extracted from the electronic patient record. Financial data were retrieved using the Patient-Level Information and Costing Systems. Results Between April 2014 and March 2020, 232 women received either immediate bilateral (n = 44), staged unilateral (n = 57) for breast cancer, or unilateral mammoplasty alone (n = 131). The median (interquartile range (i.q.r.)) additional cost of unilateral mammoplasty with staged versus immediate bilateral mammoplasty was €5500 (€4330 to €6570) per patient (P < 0.001), which represents a total supplementary financial burden of €313 462 to the study institution. There was no significant difference between groups in age, Charlson comorbidity index, operating minutes, time to adjuvant radiotherapy in months, or duration of hospital stay. Conclusion Synchronous dual-surgeon immediate bilateral TM can deliver safe immediate symmetrization and is financially beneficial, without delay to receipt of adjuvant therapy, or additional postoperative morbidity.
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Affiliation(s)
- Yasmin Grant
- Correspondence to: Yasmin Grant, Clinical Research Fellow, Department of BioSurgery and Surgical Technology, Imperial College London, 10th Floor, QEQM Wing, St Mary’s Hospital, Paddington, London W2 1NY, UK (e-mail: )
| | - Paul T. R. Thiruchelvam
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
| | - Lana Kovacevic
- Department of Health Policy, The London School of Economics and Political Science, London, UK
| | - Elias Mossialos
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
| | | | - Katy Hogben
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
| | | | - Daniel R. Leff
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
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17
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Lee A, Kwasnicki RM, Khan H, Grant Y, Chan A, Fanshawe AEE, Leff DR. Outcome reporting in therapeutic mammaplasty: a systematic review. BJS Open 2021; 5:6459423. [PMID: 34894122 PMCID: PMC8665419 DOI: 10.1093/bjsopen/zrab126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 11/05/2021] [Indexed: 11/12/2022] Open
Abstract
Background Therapeutic mammaplasty (TM) is an oncological procedure which combines tumour resection with breast reduction and mastopexy techniques. Previous systematic reviews have demonstrated the oncological safety of TM but reporting of critically important outcomes, such as quality of life, aesthetic and functional outcomes, are limited, piecemeal or inconsistent. This systematic review aimed to identify all outcomes reported in clinical studies of TM to facilitate development of a core outcome set. Methods Medline, EMBASE, CINAHL and Web of Science were searched from inception to 5 August 2020. Included studies reported clinical outcomes following TM for adult women. Two authors screened articles independently for eligibility. Data were extracted regarding the outcome definition and classification type (for example, oncological, quality of life, etc.), time of outcome reporting and measurement tools. Results Of 5709 de-duplicated records, 148 were included in the narrative synthesis. The majority of studies (n = 102, 68.9 per cent) reported measures of survival and/or recurrence; approximately three-quarters (n = 75, 73.5 per cent) had less than 5 years follow-up. Aesthetic outcome was reported in half of studies (n = 75, 50.7 per cent) using mainly subjective, non-validated measurement tools. The time point at which aesthetic assessment was conducted was highly variable, and only defined in 48 (64.0 per cent) studies and none included a preoperative baseline for comparison. Few studies reported quality of life (n = 30, 20.3 per cent), functional outcomes (n = 5, 3.4 per cent) or resource use (n = 28, 18.9 per cent). Conclusion Given the oncological equivalence of TM and mastectomy, treatment decisions are often driven by aesthetic and functional outcomes, which are infrequently and inconsistently reported with non-validated measurement tools.
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Affiliation(s)
- Alice Lee
- Department of Surgery and Cancer, Imperial College London, London, UK
| | | | - Hasaan Khan
- Faculty of Medicine, Imperial College London, London, UK
| | - Yasmin Grant
- Department of BioSurgery, Imperial College London, London, UK
| | - Abigail Chan
- Faculty of Medicine, Imperial College London, London, UK
| | - Angela E E Fanshawe
- Department of Breast Surgery, Charing Cross Hospital, Imperial College NHS Trust, London, UK
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College London, London, UK
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18
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Teh JJ, Cai W, Kedrzycki M, Thiruchelvam PTR, Elson DS, Leff DR. 392 Magseed-Guided Wide Local Excision During the COVID-19 Pandemic: A Tenable Solution to Barriers in Accessing Elective Breast Cancer Surgery. Br J Surg 2021. [PMCID: PMC8524614 DOI: 10.1093/bjs/znab259.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Introduction
Magseed-guided localisation has emerged as a suitable alternative to wire-guided localisation (WGL) for impalpable breast cancers, with advantages including advanced insertion and simpler logistical planning. Given the severe disruption to elective surgeries during the Covid-19 pandemic, a local Magseed pathway was developed enabling safe patient flow. Magseed was inserted well in advance of the operation, enabling time to self-isolate and obtain a negative COVID swab prior to admission to a dedicated COVID -free suite. We present the patient-reported outcomes of the new pathway.
Method
A prospective service evaluation was conducted in a University hospital. Patients undergoing Magseed-guided wide local excision (WLE) from 01/07/2020 to present were surveyed to detail their experiences on the Magseed pathway. Qualitative data investigating anxiety and comfort post-insertion were reported using 10-fold Likert scales. Quantitative data was collected on patient demographics and tumour specification.
Results
41/46 women who underwent Magseed localisation WLE completed the survey, with median age 65 years (IQR 53-72) and median BMI 26.5 kg/m2 (IQR 22.4-30.8). 71% had invasive ductal carcinoma with or without ductal carcinoma in-situ. 10% women found the procedure uncomfortable (<5) and 98% women reported low anxiety (<5) over seed displacement. If given the choice, 98% patients would prefer Magseed over WGL.
Conclusions
The new Magseed pathway is regarded positively among patients, despite ongoing disruption in elective breast cancer services. Given the progression of the second wave and likelihood of future outbreaks, Magseed localisation could be adopted widely to ensure continuous provision of safe elective surgeries.
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Affiliation(s)
- J J Teh
- Faculty of Medicine, Imperial College London, London, United Kingdom
| | - W Cai
- Faculty of Medicine, Imperial College London, London, United Kingdom
| | - M Kedrzycki
- Breast Cancer Services, Imperial Healthcare NHS Trust, London, United Kingdom
| | - P T R Thiruchelvam
- Breast Cancer Services, Imperial Healthcare NHS Trust, London, United Kingdom
| | - D S Elson
- Hamlyn Centre for Surgical Robotics, Imperial College London, London, United Kingdom
| | - D R Leff
- Breast Cancer Services, Imperial Healthcare NHS Trust, London, United Kingdom
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19
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Kedrzycki MS, Leiloglou M, Chalau V, Chiarini N, Thiruchelvam PTR, Hadjiminas DJ, Hogben KR, Rashid F, Ramakrishnan R, Darzi AW, Elson DS, Leff DR. The Impact of Temporal Variation in Indocyanine Green Administration on Tumor Identification During Fluorescence Guided Breast Surgery. Ann Surg Oncol 2021; 28:5617-5625. [PMID: 34347221 PMCID: PMC8418597 DOI: 10.1245/s10434-021-10503-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 07/07/2021] [Indexed: 01/05/2023]
Abstract
BACKGROUND On average, 21% of women in the USA treated with Breast Conserving Surgery (BCS) undergo a second operation because of close positive margins. Tumor identification with fluorescence imaging could improve positive margin rates through demarcating location, size, and invasiveness of tumors. We investigated the technique's diagnostic accuracy in detecting tumors during BCS using intravenous indocyanine green (ICG) and a custom-built fluorescence camera system. METHODS In this single-center prospective clinical study, 40 recruited BCS patients were sub-categorized into two cohorts. In the first 'enhanced permeability and retention' (EPR) cohort, 0.25 mg/kg ICG was injected ~ 25 min prior to tumor excision, and in the second 'angiography' cohort, ~ 5 min prior to tumor excision. Subsequently, an in-house imaging system was used to image the tumor in situ prior to resection, ex vivo following resection, the resection bed, and during grossing in the histopathology laboratory to compare the technique's diagnostic accuracy between the cohorts. RESULTS The two cohorts were matched in patient and tumor characteristics. The majority of patients had invasive ductal carcinoma with concomitant ductal carcinoma in situ. Tumor-to-background ratio (TBR) in the angiography cohort was superior to the EPR cohort (TBR = 3.18 ± 1.74 vs 2.10 ± 0.92 respectively, p = 0.023). Tumor detection reached sensitivity and specificity scores of 0.82 and 0.93 for the angiography cohort and 0.66 and 0.90 for the EPR cohort, respectively (p = 0.1051 and p = 0.9099). DISCUSSION ICG administration timing during the angiography phase compared with the EPR phase improved TBR and diagnostic accuracy. Future work will focus on image pattern analysis and adaptation of the camera system to targeting fluorophores specific to breast cancer.
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Affiliation(s)
- Martha S Kedrzycki
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Maria Leiloglou
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK. .,Department of Surgery and Cancer, Imperial College London, London, UK.
| | - Vadzim Chalau
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | - Nicolas Chiarini
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Paul T R Thiruchelvam
- Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Dimitri J Hadjiminas
- Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Katy R Hogben
- Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Faiza Rashid
- Department of Histopathology, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Rathi Ramakrishnan
- Department of Histopathology, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Ara W Darzi
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | - Daniel S Elson
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | - Daniel R Leff
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
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20
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Che Bakri NA, Kwasnicki RM, Dhillon K, Khan N, Ghandour O, Cairns A, Darzi A, Leff DR. ASO Visual Abstract: Objective Assessment of Postoperative Morbidity Following Breast Cancer Treatments with Wearable Activity Monitors: The "BRACELET" Study. Ann Surg Oncol 2021. [PMID: 34505217 DOI: 10.1245/s10434-021-10597-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Nur Amalina Che Bakri
- Department of Surgery and Cancer, Imperial College London, London, UK. .,Academic Surgical Unit, St. Mary's Hospital, Imperial College Healthcare NHS Trust, London, UK.
| | - Richard M Kwasnicki
- Department of Surgery and Cancer, Imperial College London, London, UK.,Academic Surgical Unit, St. Mary's Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Kieran Dhillon
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Naairah Khan
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Omar Ghandour
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Alexander Cairns
- Academic Surgical Unit, St. Mary's Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Ara Darzi
- Department of Surgery and Cancer, Imperial College London, London, UK.,Academic Surgical Unit, St. Mary's Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College London, London, UK.,Academic Surgical Unit, St. Mary's Hospital, Imperial College Healthcare NHS Trust, London, UK
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21
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Kedrzycki MS, Leiloglou M, Chalau V, Chiarini N, Thiruchelvam PTR, Hadjiminas DJ, Hogben KR, Rashid F, Ramakrishnan R, Darzi AW, Elson DS, Leff DR. ASO Visual Abstract: The Impact of Temporal Variation in Indocyanine Green Administration on Tumor Identification During Fluorescence-Guided Breast Surgery. Ann Surg Oncol 2021. [PMID: 34448049 DOI: 10.1245/s10434-021-10620-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Martha S Kedrzycki
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Cancer, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Maria Leiloglou
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK. .,Department of Surgery and Cancer, Imperial College London, London, UK.
| | - Vadzim Chalau
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | - Nicolas Chiarini
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Paul T R Thiruchelvam
- Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Cancer, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Dimitri J Hadjiminas
- Department of Breast Cancer, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Katy R Hogben
- Department of Breast Cancer, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Faiza Rashid
- Department of Histopathology, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Rathi Ramakrishnan
- Department of Histopathology, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Ara W Darzi
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | - Daniel S Elson
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | - Daniel R Leff
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Cancer, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
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22
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Che Bakri NA, Kwasnicki RM, Dhillon K, Khan N, Ghandour O, Cairns A, Darzi A, Leff DR. ASO Author Reflections: Improving Management of Upper Limb Complications after Breast Cancer Treatments. Ann Surg Oncol 2021; 29:566-567. [PMID: 34431022 DOI: 10.1245/s10434-021-10603-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 07/01/2021] [Indexed: 11/18/2022]
Affiliation(s)
- Nur Amalina Che Bakri
- Department of Surgery and Cancer, Imperial College London, London, UK. .,Academic Surgical Unit, Imperial College Healthcare NHS Trust, St. Mary's Hospital, Praed Street, London, UK.
| | - Richard M Kwasnicki
- Department of Surgery and Cancer, Imperial College London, London, UK.,Academic Surgical Unit, Imperial College Healthcare NHS Trust, St. Mary's Hospital, Praed Street, London, UK
| | - Kieran Dhillon
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Naairah Khan
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Omar Ghandour
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Alexander Cairns
- Academic Surgical Unit, Imperial College Healthcare NHS Trust, St. Mary's Hospital, Praed Street, London, UK
| | - Ara Darzi
- Department of Surgery and Cancer, Imperial College London, London, UK.,Academic Surgical Unit, Imperial College Healthcare NHS Trust, St. Mary's Hospital, Praed Street, London, UK
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College London, London, UK.,Academic Surgical Unit, Imperial College Healthcare NHS Trust, St. Mary's Hospital, Praed Street, London, UK
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23
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St John ER, Bakri AC, Johanson E, Loughran D, Scott A, Chen ST, Joshi S, Darzi A, Leff DR. Assessment of the introduction of semi-digital consent into surgical practice. Br J Surg 2021; 108:342-345. [PMID: 33783479 DOI: 10.1093/bjs/znaa119] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 11/10/2020] [Indexed: 11/12/2022]
Abstract
In this study, paper-based surgical consent is demonstrated to have significant errors of omission and legibility. These errors were improved by the introduction of a procedure-specific, patient-bespoke, semi-digital consent form application. Patient-reported experience of their involvement in shared decision-making is described for paper-based consent and the implications of future digital consent are discussed.
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Affiliation(s)
- E R St John
- Department of Breast Surgery, Imperial College Healthcare NHS Trust, Charing Cross Hospital, London, UK.,Concentric Health, Tramshed Tech, Cardiff, Wales, UK.,Academic Surgical Unit, Division of Surgery and Cancer, Imperial College London, St Mary's Hospital Campus, London, UK
| | - A C Bakri
- Academic Surgical Unit, Division of Surgery and Cancer, Imperial College London, St Mary's Hospital Campus, London, UK
| | - E Johanson
- School of Medicine, Neuadd Meirionnydd, Cardiff University, Cardiff, UK
| | - D Loughran
- Concentric Health, Tramshed Tech, Cardiff, Wales, UK
| | - A Scott
- Academic Surgical Unit, Division of Surgery and Cancer, Imperial College London, St Mary's Hospital Campus, London, UK.,Department of General Surgery, Imperial College Healthcare NHS Trust, Charing Cross Hospital and St Mary's Hospital, London, UK
| | - S-T Chen
- Department of General Surgery, Imperial College Healthcare NHS Trust, Charing Cross Hospital and St Mary's Hospital, London, UK
| | - S Joshi
- Department of Breast Surgery, Imperial College Healthcare NHS Trust, Charing Cross Hospital, London, UK
| | - A Darzi
- Academic Surgical Unit, Division of Surgery and Cancer, Imperial College London, St Mary's Hospital Campus, London, UK
| | - D R Leff
- Department of Breast Surgery, Imperial College Healthcare NHS Trust, Charing Cross Hospital, London, UK.,Academic Surgical Unit, Division of Surgery and Cancer, Imperial College London, St Mary's Hospital Campus, London, UK
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24
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Koh A, Parks RM, Courtney A, Leff DR. Mastitis And Mammary abscess Management Audit (MAMMA). Br J Surg 2021; 108:e286-e287. [PMID: 34370817 PMCID: PMC10364893 DOI: 10.1093/bjs/znab155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 04/11/2021] [Indexed: 11/12/2022]
Affiliation(s)
- A Koh
- Department of Colorectal Surgery, Nottingham University Hospitals NHS Trust, Nottingham, UK.,Nottingham Breast Cancer Research Centre, University of Nottingham, Nottingham, UK
| | - R M Parks
- Nottingham Breast Cancer Research Centre, University of Nottingham, Nottingham, UK
| | - A Courtney
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - D R Leff
- Department of Surgery and Cancer, Imperial College London, London, UK
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25
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Che Bakri NA, Kwasnicki RM, Dhillon K, Khan N, Ghandour O, Cairns A, Darzi A, Leff DR. Objective Assessment of Postoperative Morbidity After Breast Cancer Treatments with Wearable Activity Monitors: The "BRACELET" Study. Ann Surg Oncol 2021; 28:5597-5609. [PMID: 34309777 PMCID: PMC8312212 DOI: 10.1245/s10434-021-10458-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 06/21/2021] [Indexed: 12/14/2022]
Abstract
Background Current validated tools to measure upper limb dysfunction after breast cancer treatment, such as questionnaires, are prone to recall bias and do not enable comparisons between patients. This study aimed to test the feasibility of wearable activity monitors (WAMs) for achieving a continuous, objective assessment of functional recovery by measuring peri-operative physical activity (PA). Methods A prospective, single-center, non-randomized, observational study was conducted. Patients undergoing breast and axillary surgery were invited to wear WAMs on both wrists in the peri-operative period and then complete upper limb function (DASH) and quality-of-life (EQ-5D-5L) questionnaires. Statistical analyses were performed to determine the construct validity and concurrent validity of WAMs. Results The analysis included 39 patients with a mean age of 55 ± 13.2 years. Regain of function on the surgically treated side was observed to be an increase of arm activity as a percentage of preoperative levels, with the greatest increase observed between the postoperative days 1 and 2. The PA was significantly greater on the side not treated by surgery than on the surgically treated side after week 1 (mean PA, 75.8% vs. 62.3%; p < 0.0005) and week 2 (mean PA, 91.6% vs. 77.4%; p < 0.005). Subgroup analyses showed differences in recovery trends between different surgical procedures. Concurrent validity was demonstrated by a significant negative moderate correlation between the PA and DASH questionnaires (R = −0.506; p < 0.05). Conclusion This study demonstrated the feasibility and validity of WAMs to objectively measure postoperative recovery of upper limb function after breast surgery, providing a starting point for personalized rehabilitation through early detection of upper limb physical morbidity. Supplementary Information The online version contains supplementary material available at 10.1245/s10434-021-10458-4.
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Affiliation(s)
- Nur Amalina Che Bakri
- Department of Surgery and Cancer, Imperial College London, London, UK. .,Academic Surgical Unit, Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK.
| | - Richard M Kwasnicki
- Department of Surgery and Cancer, Imperial College London, London, UK.,Academic Surgical Unit, Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
| | - Kieran Dhillon
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Naairah Khan
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Omar Ghandour
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Alexander Cairns
- Academic Surgical Unit, Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
| | - Ara Darzi
- Department of Surgery and Cancer, Imperial College London, London, UK.,Academic Surgical Unit, Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College London, London, UK.,Academic Surgical Unit, Imperial College Healthcare NHS Trust, St. Mary's Hospital, London, UK
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26
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Kedrzycki MS, Elson DS, Leff DR. ASO Author Reflections: Fluorescence-Guided Sentinel Node Biopsy for Breast Cancer. Ann Surg Oncol 2021; 28:3749-3750. [PMID: 33185734 PMCID: PMC8184544 DOI: 10.1245/s10434-020-09344-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 10/26/2020] [Indexed: 11/18/2022]
Affiliation(s)
- Martha S Kedrzycki
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK. .,Department of Surgery and Cancer, Imperial College London, London, UK. .,Department of Breast Surgery, Imperial Healthcare Trust, London, UK.
| | - Daniel S Elson
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | - Daniel R Leff
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Imperial Healthcare Trust, London, UK
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27
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Kedrzycki MS, Leiloglou M, Ashrafian H, Jiwa N, Thiruchelvam PTR, Elson DS, Leff DR. Meta-analysis Comparing Fluorescence Imaging with Radioisotope and Blue Dye-Guided Sentinel Node Identification for Breast Cancer Surgery. Ann Surg Oncol 2021; 28:3738-3748. [PMID: 33156466 PMCID: PMC8184731 DOI: 10.1245/s10434-020-09288-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/27/2020] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Conventional methods for axillary sentinel lymph node biopsy (SLNB) are fraught with complications such as allergic reactions, skin tattooing, radiation, and limitations on infrastructure. A novel technique has been developed for lymphatic mapping utilizing fluorescence imaging. This meta-analysis aims to compare the gold standard blue dye and radioisotope (BD-RI) technique with fluorescence-guided SLNB using indocyanine green (ICG). METHODS This study was registered with PROSPERO (CRD42019129224). The MEDLINE, EMBASE, Scopus, and Web of Science databases were searched using the Medical Subject Heading (MESH) terms 'Surgery' AND 'Lymph node' AND 'Near infrared fluorescence' AND 'Indocyanine green'. Studies containing raw data on the sentinel node identification rate in breast cancer surgery were included. A heterogeneity test (using Cochran's Q) determined the use of fixed- or random-effects models for pooled odds ratios (OR). RESULTS Overall, 1748 studies were screened, of which 10 met the inclusion criteria for meta-analysis. ICG was equivalent to radioisotope (RI) at sentinel node identification (OR 2.58, 95% confidence interval [CI] 0.35-19.08, p < 0.05) but superior to blue dye (BD) (OR 9.07, 95% CI 6.73-12.23, p < 0.05). Furthermore, ICG was superior to the gold standard BD-RI technique (OR 4.22, 95% CI 2.17-8.20, p < 0.001). CONCLUSION Fluorescence imaging for axillary sentinel node identification with ICG is equivalent to the single technique using RI, and superior to the dual technique (RI-BD) and single technique with BD. Hospitals using RI and/or BD could consider changing their practice to ICG given the comparable efficacy and improved safety profile, as well as the lesser burden on hospital infrastructure.
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Affiliation(s)
- Martha S Kedrzycki
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK. .,Department of Surgery and Cancer, Imperial College London, London, UK. .,Department of Breast Surgery, Imperial Healthcare Trust, London, UK.
| | - Maria Leiloglou
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | - Hutan Ashrafian
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Natasha Jiwa
- Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Imperial Healthcare Trust, London, UK
| | - Paul T R Thiruchelvam
- Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Imperial Healthcare Trust, London, UK
| | - Daniel S Elson
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Imperial Healthcare Trust, London, UK
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28
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Dave RV, Kim B, Courtney A, O'Connell R, Rattay T, Taxiarchi VP, Kirkham JJ, Camacho EM, Fairbrother P, Sharma N, Cartlidge CWJ, Horgan K, McIntosh SA, Leff DR, Vidya R, Potter S, Holcombe C, Copson E, Coles CE, Cutress RI, Gandhi A, Kirwan CC. Publisher Correction: Breast cancer management pathways during the COVID-19 pandemic: outcomes from the UK 'Alert Level 4' phase of the B-MaP-C study. Br J Cancer 2021; 125:905. [PMID: 34163004 PMCID: PMC8220421 DOI: 10.1038/s41416-021-01465-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Rajiv V Dave
- The Nightingale Breast Cancer Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, M23 9LT, UK.
| | - Baek Kim
- Department of Breast Surgery, St. James's University Hospital, Leeds, LS9 7TF, UK
| | - Alona Courtney
- Department of Surgery and Cancer, Imperial College, London, UK
| | - Rachel O'Connell
- Department of Breast Surgery, The Royal Marsden NHS Foundation Trust, Downs Road, Sutton, Surrey, SM2 5PT, UK
| | - Tim Rattay
- Leicester Cancer Research Centre, Clinical Sciences Building, University of Leicester, Leicester, LE2 2LX, UK
| | - Vicky P Taxiarchi
- Division of Population Health, Health Services Research, and Primary Care, School of Health Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - Jamie J Kirkham
- Division of Population Health, Health Services Research, and Primary Care, School of Health Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - Elizabeth M Camacho
- Division of Population Health, Health Services Research, and Primary Care, School of Health Sciences, University of Manchester, Manchester, M13 9PL, UK
| | | | - Nisha Sharma
- Breast unit, Level 1 Chancellor wing, St James's Hospital, Leeds, LS9 7TF, UK
| | | | - Kieran Horgan
- Department of Breast Surgery, St. James's University Hospital, Leeds, LS9 7TF, UK
| | - Stuart A McIntosh
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7AE, UK
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College, London, UK
| | - Raghavan Vidya
- The Royal Wolverhampton NHS Trust, Wolverhampton Road, Wolverhampton, WV10 0QP, UK
| | - Shelley Potter
- Bristol Centre for Surgical Research, Population Health Sciences, Bristol Medical School, Canynge Hall, Whatley Road, Bristol, BS8 2PS, UK.,Bristol Breast Care Centre, North Bristol NHS Trust, Southmead Road, Bristol, BS10 5NB, UK
| | - Chris Holcombe
- Linda McCartney Centre, Royal Liverpool and Broadgreen University Hospital, Prescot Street, Liverpool, L7 8XP, UK
| | - Ellen Copson
- Cancer Sciences Academic Unit, University of Southampton and University Hospital Southampton, Tremona Road, Southampton, SO16 6YD, UK
| | | | - Ramsey I Cutress
- Cancer Sciences Academic Unit, University of Southampton and University Hospital Southampton, Tremona Road, Southampton, SO16 6YD, UK
| | - Ashu Gandhi
- The Nightingale Breast Cancer Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, M23 9LT, UK.,Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oglesby Cancer Research Building, Manchester Cancer Research Centre, Wilmslow Road, Manchester, M20 4BX, UK
| | - Cliona C Kirwan
- The Nightingale Breast Cancer Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, M23 9LT, UK. .,Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oglesby Cancer Research Building, Manchester Cancer Research Centre, Wilmslow Road, Manchester, M20 4BX, UK.
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29
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Abstract
INTRODUCTION Therapeutic mammaplasty (TM) is an oncological procedure which combines tumour resection with breast reduction and mastopexy techniques. Previous systematic reviews have demonstrated oncological safety of TM, but poor and inconsistent reporting of quality-of-life, aesthetic and functional outcomes, often with non-validated measurement tools. Moreover, there is a paucity of patient-reported outcome measures. Standardisation of outcome reporting is required to enable study results to be compared and combined, for example, through core outcome set (COS) development. This systematic review aims to comprehensively describe the outcomes reported in clinical studies of TM, their respective outcome measures and the time points at which they were evaluated. The overall objective is to facilitate the development of a COS for TM. METHODS AND ANALYSIS A systematic review of clinical studies evaluating outcomes following TM will be completed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The following electronic databases have been searched from inception to 5 August 2020: Ovid MEDLINE, Embase, CINAHL and Web of Science. Primary outcomes will include the number of reported outcomes of various types (clinical, aesthetic, functional, quality-of-life and cost-effectiveness), whether these are patient-reported or clinician-reported, how outcomes are defined and the outcome measurement tool(s) used. The time point(s) at which outcomes were measured will be a secondary outcome. No studies will be excluded on the basis of methodological quality in order to generate a comprehensive list of reported outcomes and outcome measures; hence, risk of bias assessment is not required. The data will be described narratively. This protocol has been reported in line with PRISMA-Protocols. ETHICS AND DISSEMINATION This study does not involve human or animal participants, hence ethical approval is not required. The findings will be published in a peer-reviewed journal and presented at relevant conferences. PROSPERO REGISTRATION NUMBER CRD42020200365.
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Affiliation(s)
- Alice Lee
- Department of Surgery and Cancer, Imperial College London, London, UK
| | | | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College London, London, UK
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30
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Vidya R, Leff DR, Green M, McIntosh SA, St John E, Kirwan CC, Romics L, Cutress RI, Potter S, Carmichael A, Subramanian A, O'Connell R, Fairbrother P, Fenlon D, Benson J, Holcombe C. Innovations for the future of breast surgery. Br J Surg 2021; 108:908-916. [PMID: 34059874 DOI: 10.1093/bjs/znab147] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 04/06/2021] [Indexed: 01/22/2023]
Abstract
BACKGROUND Future innovations in science and technology with an impact on multimodal breast cancer management from a surgical perspective are discussed in this narrative review. The work was undertaken in response to the Commission on the Future of Surgery project initiated by the Royal College of Surgeons of England. METHODS Expert opinion was sought around themes of surgical de-escalation, reduction in treatment morbidities, and improving the accuracy of breast-conserving surgery in terms of margin status. There was emphasis on how the primacy of surgical excision in an era of oncoplastic and reconstructive surgery is increasingly being challenged, with more effective systemic therapies that target residual disease burden, and permit response-adapted approaches to both breast and axillary surgery. RESULTS Technologies for intraoperative margin assessment can potentially half re-excision rates after breast-conserving surgery, and sentinel lymph node biopsy will become a therapeutic procedure for many patients with node-positive disease treated either with surgery or chemotherapy as the primary modality. Genomic profiling of tumours can aid in the selection of patients for neoadjuvant and adjuvant therapies as well as prevention strategies. Molecular subtypes are predictive of response to induction therapies and reductive approaches to surgery in the breast or axilla. CONCLUSION Treatments are increasingly being tailored and based on improved understanding of tumour biology and relevant biomarkers to determine absolute benefit and permit delivery of cost-effective healthcare. Patient involvement is crucial for breast cancer studies to ensure relevance and outcome measures that are objective, meaningful, and patient-centred.
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Affiliation(s)
- R Vidya
- Royal Wolverhampton NHS Trust, Wolverhampton, UK
| | - D R Leff
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - M Green
- The Walsall NHS Trust, Walsall, UK
| | - S A McIntosh
- Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, UK
| | - E St John
- Locum Consultant Oncoplastic Breast Surgeon, Royal Marsden NHS Foundation Trust, Sutton, UK
| | - C C Kirwan
- Nightingale Breast Cancer Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - L Romics
- New Victoria Hospital Glasgow, Glasgow, UK
| | - R I Cutress
- Cancer Sciences Academic Unit, University of Southampton and University Hospital Southampton, Southampton, UK
| | - S Potter
- Bristol Centre for Surgical Research, Population Health Sciences, Bristol Medical School, Bristol, UK.,Bristol Breast Care Centre, North Bristol NHS Trust, Bristol, UK
| | - A Carmichael
- University Hospital of Derby and Burton NHS Foundation Trust, Burton upon Trent, UK
| | | | - R O'Connell
- Department of Breast Surgery, Royal Marsden NHS Foundation Trust, Sutton, UK
| | | | - D Fenlon
- College of Human and Health Sciences, Swansea University, Swansea, UK
| | - J Benson
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.,School of Medicine, Anglia Ruskin University, Chelmsford and Cambridge, UK
| | - C Holcombe
- Linda McCartney Centre, Royal Liverpool and Broadgreen University Hospital, Liverpool, UK
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31
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Jiwa N, Takats Z, Leff DR, Sutton C. Breast health screening: a UK-wide questionnaire. BMJ Nutr Prev Health 2021; 4:206-212. [PMID: 34308128 PMCID: PMC8258049 DOI: 10.1136/bmjnph-2021-000266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/12/2021] [Accepted: 04/15/2021] [Indexed: 11/04/2022] Open
Abstract
Background Currently, there is an unmet clinical need in identifying and screening women at high risk of breast cancer, where tumours are often aggressive and treatment intervention is too late to prevent metastasis, recurrence and mortality. This has been brought into sharp focus by the SARS-CoV-2 global pandemic, constantly changing hospital policies and surgical guidelines in reducing access to established screening and treatment regimens. Nipple aspirate fluid (NAF), is thought to provide a unique window into the biological processes occurring within the breast, particularly in the context of a developing neoplasm. Evaluation of NAF in asymptomatic women, for novel chemical biomarkers of either early disease and/or cancer risk offers tremendous promise as a tool to facilitate early detection and to supplement screening. However, it is acceptability as a method of collection and screening by women is critical and yet unknown. A breast health questionnaire was disseminated to women through breast cancer charities, patient support groups and social media platforms, with the aim of collecting opinions on the acceptability of use of NAF as a potential screening tool. Method Following ethical approval a questionnaire was prepared using online surveys consisting of four parts: (a) introduction on breast health screening in the UK, (b) core demographic data, (c) questions regarding screening and the acceptability of using NAF and (d) opinions about the process of collecting and using nipple fluid for screening. The voluntary and anonymous questionnaire was disseminated through social media, professional networks, charity websites and by individuals between October 2019 and December 2020. Survey responses were collected electronically, and the data analysed using online surveys statistical tools. Results A total of 3178 women completed the questionnaire (65.9% Caucasian, 27.7% Asian/British Asian, 0.6% black and 5.0% other). Of these, 2650 women (83.4%) had no prior knowledge of NAF and 89.4% were unaware that NAF can be expressed in up to 90% of all women. Concerning their risk of breast cancer, 89.8% of women were keen to know their future risk of breast cancer, 8.5% were unsure whether they wanted to know their risk and a further, 1.6% did not want to know. Regarding screening, 944 women (29.8%) were unaware of the lack of routine National Health Service Breast Screening for those under the age of 47 years. Furthermore, 53.0% of women were unaware that mammographic screening is affected by breast density. In terms of the acceptability of home testing for breast health, 92.0% were keen to undergo a home test. Both 79.7% and 70.9% stated they would consider hand massage and a breast pump to acquire nipple fluid samples, respectively. A further 48.6% of women would consider the use of a hormonal nasal spray for the same purpose. However, with regards to acquiring results from NAF testing, 42.6% of women would prefer to receive results at home and 34.2% in a medical facility. Finally, 91.6% of women believed that breast health should be incorporated as part of school education curriculum. Conclusion Public awareness regarding breast screening protocols and limitations of mammography could be improved. Many women were unaware that NAF might be a useful biofluid for future risk prediction, and yet the concept of self-testing of nipple fluid, with either hand massage or a breast pump was well received. Efforts should be made to increase awareness of the benefits of alternative and supplementary tests, especially in the context of high-risk individuals and younger patients.
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Affiliation(s)
- Natasha Jiwa
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Zoltan Takats
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Imperial College Healthcare NHS Trust, London, UK
| | - Christopher Sutton
- Department of Chemistry and Biosciences, University of Bradford, Bradford, UK
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32
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Dave RV, Kim B, Courtney A, O'Connell R, Rattay T, Taxiarchi VP, Kirkham JJ, Camacho EM, Fairbrother P, Sharma N, Cartlidge CWJ, Horgan K, McIntosh SA, Leff DR, Vidya R, Potter S, Holcombe C, Copson E, Coles CE, Cutress RI, Gandhi A, Kirwan CC. Breast cancer management pathways during the COVID-19 pandemic: outcomes from the UK 'Alert Level 4' phase of the B-MaP-C study. Br J Cancer 2021; 124:1785-1794. [PMID: 33767422 PMCID: PMC7993073 DOI: 10.1038/s41416-020-01234-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 12/04/2020] [Accepted: 12/10/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The B-MaP-C study aimed to determine alterations to breast cancer (BC) management during the peak transmission period of the UK COVID-19 pandemic and the potential impact of these treatment decisions. METHODS This was a national cohort study of patients with early BC undergoing multidisciplinary team (MDT)-guided treatment recommendations during the pandemic, designated 'standard' or 'COVID-altered', in the preoperative, operative and post-operative setting. FINDINGS Of 3776 patients (from 64 UK units) in the study, 2246 (59%) had 'COVID-altered' management. 'Bridging' endocrine therapy was used (n = 951) where theatre capacity was reduced. There was increasing access to COVID-19 low-risk theatres during the study period (59%). In line with national guidance, immediate breast reconstruction was avoided (n = 299). Where adjuvant chemotherapy was omitted (n = 81), the median benefit was only 3% (IQR 2-9%) using 'NHS Predict'. There was the rapid adoption of new evidence-based hypofractionated radiotherapy (n = 781, from 46 units). Only 14 patients (1%) tested positive for SARS-CoV-2 during their treatment journey. CONCLUSIONS The majority of 'COVID-altered' management decisions were largely in line with pre-COVID evidence-based guidelines, implying that breast cancer survival outcomes are unlikely to be negatively impacted by the pandemic. However, in this study, the potential impact of delays to BC presentation or diagnosis remains unknown.
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Affiliation(s)
- Rajiv V Dave
- The Nightingale Breast Cancer Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, M23 9LT, UK.
| | - Baek Kim
- Department of Breast Surgery, St. James's University Hospital, Leeds, LS9 7TF, UK
| | - Alona Courtney
- Department of Surgery and Cancer, Imperial College, London, UK
| | - Rachel O'Connell
- Department of Breast Surgery, The Royal Marsden NHS Foundation Trust, Downs Road, Sutton, Surrey, SM2 5PT, UK
| | - Tim Rattay
- Leicester Cancer Research Centre, Clinical Sciences Building, University of Leicester, Leicester, LE2 2LX, UK
| | - Vicky P Taxiarchi
- Division of Population Health, Health Services Research, and Primary Care, School of Health Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - Jamie J Kirkham
- Division of Population Health, Health Services Research, and Primary Care, School of Health Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - Elizabeth M Camacho
- Division of Population Health, Health Services Research, and Primary Care, School of Health Sciences, University of Manchester, Manchester, M13 9PL, UK
| | | | - Nisha Sharma
- Breast unit, Level 1 Chancellor wing, St James's Hospital, Leeds, LS9 7TF, UK
| | | | - Kieran Horgan
- Department of Breast Surgery, St. James's University Hospital, Leeds, LS9 7TF, UK
| | - Stuart A McIntosh
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7AE, UK
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College, London, UK
| | - Raghavan Vidya
- The Royal Wolverhampton NHS Trust, Wolverhampton Road, Wolverhampton, WV10 0QP, UK
| | - Shelley Potter
- Bristol Centre for Surgical Research, Population Health Sciences, Bristol Medical School, Canynge Hall, Whatley Road, Bristol, BS8 2PS, UK
- Bristol Breast Care Centre, North Bristol NHS Trust, Southmead Road, Bristol, BS10 5NB, UK
| | - Chris Holcombe
- Linda McCartney Centre, Royal Liverpool and Broadgreen University Hospital, Prescot Street, Liverpool, L7 8XP, UK
| | - Ellen Copson
- Cancer Sciences Academic Unit, University of Southampton and University Hospital Southampton, Tremona Road, Southampton, SO16 6YD, UK
| | | | - Ramsey I Cutress
- Cancer Sciences Academic Unit, University of Southampton and University Hospital Southampton, Tremona Road, Southampton, SO16 6YD, UK
| | - Ashu Gandhi
- The Nightingale Breast Cancer Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, M23 9LT, UK
- Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oglesby Cancer Research Building, Manchester Cancer Research Centre, Wilmslow Road, Manchester, M20 4BX, UK
| | - Cliona C Kirwan
- The Nightingale Breast Cancer Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, M23 9LT, UK.
- Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oglesby Cancer Research Building, Manchester Cancer Research Centre, Wilmslow Road, Manchester, M20 4BX, UK.
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33
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Dryden SD, Anastasova S, Satta G, Thompson AJ, Leff DR, Darzi A. Rapid uropathogen identification using surface enhanced Raman spectroscopy active filters. Sci Rep 2021; 11:8802. [PMID: 33888775 PMCID: PMC8062667 DOI: 10.1038/s41598-021-88026-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/26/2021] [Indexed: 12/01/2022] Open
Abstract
Urinary tract infection is one of the most common bacterial infections leading to increased morbidity, mortality and societal costs. Current diagnostics exacerbate this problem due to an inability to provide timely pathogen identification. Surface enhanced Raman spectroscopy (SERS) has the potential to overcome these issues by providing immediate bacterial classification. To date, achieving accurate classification has required technically complicated processes to capture pathogens, which has precluded the integration of SERS into rapid diagnostics. This work demonstrates that gold-coated membrane filters capture and aggregate bacteria, separating them from urine, while also providing Raman signal enhancement. An optimal gold coating thickness of 50 nm was demonstrated, and the diagnostic performance of the SERS-active filters was assessed using phantom urine infection samples at clinically relevant concentrations (105 CFU/ml). Infected and uninfected (control) samples were identified with an accuracy of 91.1%. Amongst infected samples only, classification of three bacteria (Escherichia coli, Enterococcus faecalis, Klebsiella pneumoniae) was achieved at a rate of 91.6%.
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Affiliation(s)
- Simon D Dryden
- Department of Surgery and Cancer, Imperial College London, St Mary's Hospital, 10Th Floor, QEQM Wing, London, W2 1NY, UK.
| | - Salzitsa Anastasova
- Hamlyn Centre for Robotic Surgery, Imperial College London, London, SW1 2AZ, UK
| | - Giovanni Satta
- Department of Infection, Imperial College NHS Trust, London, W6 8RF, UK
| | - Alex J Thompson
- Department of Surgery and Cancer, Imperial College London, St Mary's Hospital, 10Th Floor, QEQM Wing, London, W2 1NY, UK. .,Hamlyn Centre for Robotic Surgery, Imperial College London, London, SW1 2AZ, UK. .,Department of Surgery and Cancer, Imperial College London, St Mary's Hospital, 2nd Floor, Paterson Building, London, W2 1NY, UK.
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College London, St Mary's Hospital, 10Th Floor, QEQM Wing, London, W2 1NY, UK.,Hamlyn Centre for Robotic Surgery, Imperial College London, London, SW1 2AZ, UK
| | - Ara Darzi
- Department of Surgery and Cancer, Imperial College London, St Mary's Hospital, 10Th Floor, QEQM Wing, London, W2 1NY, UK.,Hamlyn Centre for Robotic Surgery, Imperial College London, London, SW1 2AZ, UK
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34
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Patel R, Rai A, Thornton-Wood F, Wilkinson A, Darzi A, Singh H, Leff DR. Neuroenhancement of future surgeons - Opinions from students, surgeons and patients. Brain Stimul 2021; 14:616-618. [PMID: 33789167 DOI: 10.1016/j.brs.2021.03.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 03/19/2021] [Indexed: 11/15/2022] Open
Affiliation(s)
- Ronak Patel
- Department of Surgery and Cancer, Imperial College London, UK.
| | - Amar Rai
- Department of Surgery and Cancer, Imperial College London, UK
| | | | - Aimee Wilkinson
- Department of Surgery and Cancer, Imperial College London, UK
| | - Ara Darzi
- Department of Surgery and Cancer, Imperial College London, UK
| | - Harsimrat Singh
- Department of Surgery and Cancer, Imperial College London, UK
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College London, UK
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35
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Patel R, Singh H, Ashcroft J, Woods AJ, Darzi A, Leff DR. Dataset of prefrontal transcranial direct-current stimulation to improve early surgical knot-tying skills. Data Brief 2021; 35:106905. [PMID: 33732823 PMCID: PMC7941089 DOI: 10.1016/j.dib.2021.106905] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 02/17/2021] [Accepted: 02/19/2021] [Indexed: 11/26/2022] Open
Abstract
Transcranial direct-current stimulation (tDCS) has previously demonstrated promising effects in improving surgical performance with motor region stimulation [1], [2], [3], [4]. However, extensive prior research has revealed an important role of the prefrontal cortex in surgical skill development [5,6]. This article presents the data of a double-blind randomized sham-controlled trial investigating the effect of prefrontal tDCS on knot-tying performance [7]. Data was collected from an active (n = 20) and sham (n = 20) group across three blocks: pre-, online- (during) and post-tDCS. Group and block differences of knot-tying performance were analyzed using a Generalized linear mixed model and supported with a Friedman's test. Further sub-analyses were conducted to compare high vs. low skilled individuals and initial vs. last knots. Subjective workload was assessed after each block using a SURG-TLX questionnaire and side-effects of the tDCS block were recorded using an additional survey.
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Affiliation(s)
- Ronak Patel
- Department of Surgery & Cancer, Imperial College London, St Mary's Hospital Campus, 10th Floor, QEQM Building, Praed Street, London W2 1NY, United Kingdom
| | - Harsimrat Singh
- Department of Surgery & Cancer, Imperial College London, St Mary's Hospital Campus, 10th Floor, QEQM Building, Praed Street, London W2 1NY, United Kingdom
| | - James Ashcroft
- Department of Surgery & Cancer, Imperial College London, St Mary's Hospital Campus, 10th Floor, QEQM Building, Praed Street, London W2 1NY, United Kingdom
| | - Adam J Woods
- Department of Clinical and Health Psychology, Center for Cognitive Aging and Memory, McKnight Brain Institute, University of Florida, Gainesville, FL, United States
| | - Ara Darzi
- Department of Surgery & Cancer, Imperial College London, St Mary's Hospital Campus, 10th Floor, QEQM Building, Praed Street, London W2 1NY, United Kingdom
| | - Daniel R Leff
- Department of Surgery & Cancer, Imperial College London, St Mary's Hospital Campus, 10th Floor, QEQM Building, Praed Street, London W2 1NY, United Kingdom
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36
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Jallali N, Hunter JE, Henry FP, Wood SH, Hogben K, Almufti R, Hadjiminas D, Dunne J, Thiruchelvam PT, Leff DR. The feasibility and safety of immediate breast reconstruction in the COVID-19 era. J Plast Reconstr Aesthet Surg 2020; 73:1917-1923. [PMID: 32948493 PMCID: PMC7443097 DOI: 10.1016/j.bjps.2020.08.044] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 08/18/2020] [Indexed: 12/30/2022]
Abstract
The coronavirus disease-2019 pandemic has had a significant impact on the delivery of surgical services, particularly reconstructive surgery. This article examines the current evidence to assess the feasibility of recommencing immediate breast reconstruction services during the pandemic and highlights considerations required to ensure patient safety.
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Affiliation(s)
- Navid Jallali
- Department of Plastic and Reconstructive Surgery, Charing Cross Hospital Campus, Imperial College Healthcare NHS Trust, Fulham Palace Rd, London W6 8RF, UK.
| | - Judith E. Hunter
- Department of Plastic and Reconstructive Surgery, Charing Cross Hospital Campus, Imperial College Healthcare NHS Trust, Fulham Palace Rd, London W6 8RF, UK
| | - Francis P. Henry
- Department of Plastic and Reconstructive Surgery, Charing Cross Hospital Campus, Imperial College Healthcare NHS Trust, Fulham Palace Rd, London W6 8RF, UK
| | - Simon H. Wood
- Department of Plastic and Reconstructive Surgery, Charing Cross Hospital Campus, Imperial College Healthcare NHS Trust, Fulham Palace Rd, London W6 8RF, UK
| | - Katy Hogben
- Department of Breast Surgery, Charing Cross Hospital Campus, Imperial College Healthcare NHS Trust, London, UK
| | - Ragheed Almufti
- Department of Breast Surgery, Charing Cross Hospital Campus, Imperial College Healthcare NHS Trust, London, UK
| | - Dimitri Hadjiminas
- Department of Breast Surgery, Charing Cross Hospital Campus, Imperial College Healthcare NHS Trust, London, UK
| | - Jonathan Dunne
- Department of Plastic and Reconstructive Surgery, Charing Cross Hospital Campus, Imperial College Healthcare NHS Trust, Fulham Palace Rd, London W6 8RF, UK
| | - Paul T.R. Thiruchelvam
- Department of Breast Surgery, Charing Cross Hospital Campus, Imperial College Healthcare NHS Trust, London, UK
| | - Daniel R. Leff
- Department of Breast Surgery, Charing Cross Hospital Campus, Imperial College Healthcare NHS Trust, London, UK,Department of Surgery and Cancer, Imperial College London, UK
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37
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Courtney A, O'Connell R, Rattay T, Kim B, Cutress RI, Kirwan CC, Gandhi A, Fairbrother P, Sharma N, Cartlidge CWJ, Horgan K, McIntosh SA, Leff DR, Vidya R, Potter S, Holcombe C, Copson E, Coles CE, Dave RV. The B-MaP-C study: Breast cancer management pathways during the COVID-19 pandemic. Study protocol. Int J Surg Protoc 2020; 24:1-5. [PMID: 32838092 PMCID: PMC7388760 DOI: 10.1016/j.isjp.2020.07.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 07/14/2020] [Accepted: 07/15/2020] [Indexed: 01/15/2023] Open
Abstract
Introduction Approximately 55,000 women in the United Kingdom are diagnosed with new breast cancer annually. Since emerging in December 2019, SARS-CoV-2 (coronavirus disease 2019, COVID-19) has become a global pandemic, affecting healthcare delivery worldwide. In response to the pandemic, multiple guidelines were issued to assist with rationalising breast cancer care. The primary aim of the B-MaP-C study is to audit and describe breast cancer management of patients newly diagnosed with breast cancer during the COVID-19 pandemic against pre-COVID-19 management practice in the UK. The implications of changes to management will be determined and the impact of a COVID-19 diagnosis on the patient’s breast cancer management will be determined. Methods and analysis This is a multi-centre collaborative audit of consecutive breast cancer patients undergoing treatment decisions during the acute and recovery phases of the COVID-19 pandemic. All patients with newly diagnosed primary breast cancer, whose treatment was decided in a multidisciplinary meeting from the 16th March 2020, are eligible for inclusion. Ethics and dissemination As this is an audit ethical approval is not required. Each participating centre is required to register the study locally and obtain local governance approvals prior to commencement of data collection. Local audit data will be available to individual participating units for governance purposes. The results of the data analysis will be submitted for publication, as well as disseminated via the ABS newsletter and a webinar. All data will be presented at national and international conferences, circumstances permitting. Registration details Each participating centre received local governance audit registration.
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Affiliation(s)
- Alona Courtney
- Department of Surgery and Cancer, Imperial College London, UK
| | - Rachel O'Connell
- Department of Breast Surgery, The Royal Marsden NHS Foundation Trust, Downs Road, Sutton, Surrey SM2 5PT, UK
| | - Tim Rattay
- Department of Cancer Studies, Clinical Sciences Building, University of Leicester, Leicester LE2 2LX, UK
| | - Baek Kim
- Department of Breast Surgery, St. James's University Hospital, Leeds LS9 7TF, UK
| | - Ramsey I Cutress
- University of Southampton and University Hospital Southampton, Tremona Road, Southampton SO16 6YD UK
| | - Cliona C Kirwan
- The Nightingale Breast Cancer Centre, Wythenshawe Hospital, Manchester M23 9LT, UK.,Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oglesby Cancer Research Building, Manchester Cancer Research Centre, Wilmslow Road, Manchester M20 4BX, UK
| | - Ashu Gandhi
- The Nightingale Breast Cancer Centre, Wythenshawe Hospital, Manchester M23 9LT, UK.,Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oglesby Cancer Research Building, Manchester Cancer Research Centre, Wilmslow Road, Manchester M20 4BX, UK
| | | | - Nisha Sharma
- Breast Unit, Level 1 Chancellor Wing, St James's Hospital, Leeds LS9 7TF, UK
| | | | - Kieran Horgan
- Department of Breast Surgery, St. James's University Hospital, Leeds LS9 7TF, UK
| | - Stuart A McIntosh
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7AE, UK
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College London, UK
| | - Raghavan Vidya
- The Royal Wolverhampton NHS Trust, Wolverhampton Road, Wolverhampton WV10 0QP, UK
| | - Shelley Potter
- Bristol Centre for Surgical Research, Population Health Sciences, Bristol Medical School, Canynge Hall, Whatley Road, Bristol BS8 2PS UK
| | - Chris Holcombe
- Linda McCartney Centre, Royal Liverpool and Broadgreen University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - Ellen Copson
- University of Southampton and University Hospital Southampton, Tremona Road, Southampton SO16 6YD UK
| | | | - Rajiv V Dave
- The Nightingale Breast Cancer Centre, Wythenshawe Hospital, Manchester M23 9LT, UK
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38
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Joshi M, Karat I, Leff DR. COVID 19 and breast surgery - silver linings? Br J Surg 2020; 107:e359. [PMID: 32687599 PMCID: PMC7404887 DOI: 10.1002/bjs.11784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 05/18/2020] [Indexed: 11/08/2022]
Affiliation(s)
- M Joshi
- Imperial College London, Department of Surgery & Cancer, UK.,Frimley Health NHS Foundation Trust, UK
| | - I Karat
- Frimley Health NHS Foundation Trust, UK
| | - D R Leff
- Imperial College London, Department of Surgery & Cancer, UK
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39
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Patel R, Ashcroft J, Darzi A, Singh H, Leff DR. Neuroenhancement in surgeons: benefits, risks and ethical dilemmas. Br J Surg 2020; 107:946-950. [DOI: 10.1002/bjs.11601] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/19/2020] [Accepted: 02/27/2020] [Indexed: 12/11/2022]
Abstract
Abstract
Background
Surgeons traditionally aim to reduce mistakes in healthcare through repeated training and advancement of surgical technology. Recently, performance-enhancing interventions such as neurostimulation are emerging which may offset errors in surgical practice.
Methods
Use of transcranial direct-current stimulation (tDCS), a novel neuroenhancement technique that has been applied to surgeons to improve surgical technical performance, was reviewed. Evidence supporting tDCS improvements in motor and cognitive performance outside of the field of surgery was assessed and correlated with emerging research investigating tDCS in the surgical setting and potential applications to wider aspects of healthcare. Ethical considerations and future implications of using tDCS in surgical training and perioperatively are also discussed.
Results
Outside of surgery, tDCS studies demonstrate improved motor performance with regards to reaction time, task completion, strength and fatigue, while also suggesting enhanced cognitive function through multitasking, vigilance and attention assessments. In surgery, current research has demonstrated improved performance in open knot-tying, laparoscopic and robotic skills while also offsetting subjective temporal demands. However, a number of ethical issues arise from the potential application of tDCS in surgery in the form of safety, coercion, distributive justice and fairness, all of which must be considered prior to implementation.
Conclusion
Neuroenhancement may improve motor and cognitive skills in healthcare professions with impact on patient safety. Implementation will require accurate protocols and regulations to balance benefits with the associated ethical dilemmas, and to direct safe use for clinicians and patients.
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Affiliation(s)
- R Patel
- Department of Surgery and Cancer, Imperial College London, St Mary's Hospital Campus, 10th Floor, Queen Elizabeth the Queen Mother Building, Praed Street, London W2 1NY, UK
| | - J Ashcroft
- Department of Surgery and Cancer, Imperial College London, St Mary's Hospital Campus, 10th Floor, Queen Elizabeth the Queen Mother Building, Praed Street, London W2 1NY, UK
| | - A Darzi
- Department of Surgery and Cancer, Imperial College London, St Mary's Hospital Campus, 10th Floor, Queen Elizabeth the Queen Mother Building, Praed Street, London W2 1NY, UK
| | - H Singh
- Department of Surgery and Cancer, Imperial College London, St Mary's Hospital Campus, 10th Floor, Queen Elizabeth the Queen Mother Building, Praed Street, London W2 1NY, UK
| | - D R Leff
- Department of Surgery and Cancer, Imperial College London, St Mary's Hospital Campus, 10th Floor, Queen Elizabeth the Queen Mother Building, Praed Street, London W2 1NY, UK
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Muthuswamy K, Fisher R, Petrou F, Mavroveli S, Leff DR. Axillary lymph node dissection training in a post-Z0011 era: A survey of UK breast surgery trainees. Breast J 2019; 25:1037-1041. [PMID: 31237734 DOI: 10.1111/tbj.13398] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 10/23/2018] [Accepted: 11/19/2018] [Indexed: 12/13/2022]
Affiliation(s)
| | - Rebecca Fisher
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Fotis Petrou
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Stella Mavroveli
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Daniel R Leff
- Department of Surgery and Cancer, Imperial College London, London, UK
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41
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Godden AR, Micha A, O'Connell RL, James SE, Wood SH, Thiruchelvam P, Hadjiminas DJ, Cleator S, MacNeill FA, Leff DR, Kirby AM, Rusby JE. P109. Primary Radiotherapy And Deep inferior epigastric artery perforator (DIEP) flAp study (PRADA): Aesthetic Outcome and Patient Satisfaction at one year. Eur J Surg Oncol 2019. [DOI: 10.1016/j.ejso.2019.01.130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Grant Y, Al-Khudairi R, St John E, Barschkett M, Cunningham D, Al-Mufti R, Hogben K, Thiruchelvam P, Hadjiminas DJ, Darzi A, Carter AW, Leff DR. Patient-level costs in margin re-excision for breast-conserving surgery. Br J Surg 2018; 106:384-394. [PMID: 30566233 DOI: 10.1002/bjs.11050] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 06/04/2018] [Accepted: 10/06/2018] [Indexed: 12/26/2022]
Abstract
BACKGROUND High rates of reoperation following breast-conserving surgery (BCS) for positive margins are associated with costs to healthcare providers. The aim was to assess the quality of evidence on reported re-excision costs and compare the direct patient-level costs between patients undergoing successful BCS versus reoperations after BCS. METHODS The study used data from women who had BCS with or without reoperation at a single institution between April 2015 and March 2016. A systematic review of health economic analysis in BCS was conducted and scored using the Quality of Health Economic Studies (QHES) instrument. Financial data were retrieved using the Patient-Level Information and Costing Systems (PLICS) for patients. Exchange rates used were: US $1 = £0·75, £1 = €1·14 and US $1 = €0·85. RESULTS The median QHES score was 47 (i.q.r. 32·5-79). Only two of nine studies scored in the upper QHES quartile (score at least 75). Costs of initial lumpectomy and reoperation were in the range US $1234-11786 and $655-9136 respectively. Over a 12-month interval, 153 patients had definitive BCS and 59 patients underwent reoperation. The median cost of reoperations after BCS (59 patients) was £4511 (range 1752-18 019), representing an additional £2136 per patient compared with BCS without reoperation (P < 0·001). CONCLUSION The systematic review demonstrated variation in methodological approach to cost estimates and a paucity of high-quality cost estimate studies for reoperations. Extrapolating local PLICS data to a national level suggests that getting BCS right first time could result in substantial savings.
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Affiliation(s)
- Y Grant
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
| | - R Al-Khudairi
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
| | - E St John
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
| | - M Barschkett
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
| | - D Cunningham
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
| | - R Al-Mufti
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
| | - K Hogben
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
| | - P Thiruchelvam
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
| | - D J Hadjiminas
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
| | - A Darzi
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
| | - A W Carter
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
| | - D R Leff
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK.,Breast Unit, Imperial College Healthcare NHS Trust, London, UK
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Modi HN, Singh H, Yang GZ, Darzi AW, Leff DR. Neural Correlates of Stress Resilience in the Operating Room. J Am Coll Surg 2018. [DOI: 10.1016/j.jamcollsurg.2018.08.563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Singh H, Modi HN, Ranjan S, Dilley JWR, Airantzis D, Yang GZ, Darzi A, Leff DR. Robotic Surgery Improves Technical Performance and Enhances Prefrontal Activation During High Temporal Demand. Ann Biomed Eng 2018; 46:1621-1636. [PMID: 29869104 PMCID: PMC6153983 DOI: 10.1007/s10439-018-2049-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 05/11/2018] [Indexed: 02/08/2023]
Abstract
Robotic surgery may improve technical performance and reduce mental demands compared to laparoscopic surgery. However, no studies have directly compared the impact of robotic and laparoscopic techniques on surgeons' brain function. This study aimed to assess the effect of the operative platform (robotic surgery or conventional laparoscopy) on prefrontal cortical activation during a suturing task performed under temporal demand. Eight surgeons (mean age ± SD = 34.5 ± 2.9 years, male:female ratio = 7:1) performed an intracorporeal suturing task in a self-paced manner and under a 2 min time restriction using conventional laparoscopic and robotic techniques. Prefrontal activation was assessed using near-infrared spectroscopy, subjective workload was captured using SURG-TLX questionnaires, and a continuous heart rate monitor measured systemic stress responses. Task progression scores (au), error scores (au), leak volumes (mL) and knot tensile strengths (N) provided objective assessment of technical performance. Under time pressure, robotic suturing led to improved technical performance (median task progression score: laparoscopic suturing = 4.5 vs. robotic suturing = 5.0; z = - 2.107, p = 0.035; median error score: laparoscopic suturing = 3.0 mm vs. robotic suturing = 2.1 mm; z = - 2.488, p = 0.013). Compared to laparoscopic suturing, greater prefrontal activation was identified in seven channels located primarily in lateral prefrontal regions. These results suggest that robotic surgery improves performance during high workload conditions and is associated with enhanced activation in regions of attention, concentration and task engagement.
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Affiliation(s)
- Harsimrat Singh
- Hamlyn Centre for Robotic Surgery, Imperial College London, London, UK.
- Department of Surgery and Cancer, Imperial College London, London, UK.
- Department of Surgery and Cancer, St Mary's Hospital, 2nd Floor, Paterson Wing, Praed Street, London, W2 1NY, UK.
| | - Hemel N Modi
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Samriddha Ranjan
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - James W R Dilley
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Dimitrios Airantzis
- Institute for Liver and Digestive Health (ILDH), University College London, London, UK
| | - Guang-Zhong Yang
- Hamlyn Centre for Robotic Surgery, Imperial College London, London, UK
| | - Ara Darzi
- Hamlyn Centre for Robotic Surgery, Imperial College London, London, UK
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Daniel R Leff
- Hamlyn Centre for Robotic Surgery, Imperial College London, London, UK
- Department of Surgery and Cancer, Imperial College London, London, UK
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Patani N, MacAskill F, Eshelby S, Omar A, Kaura A, Contractor K, Thiruchelvam P, Curtis S, Main J, Cunningham D, Hogben K, Al-Mufti R, Hadjiminas DJ, Leff DR. Best-practice care pathway for improving management of mastitis and breast abscess. Br J Surg 2018; 105:1615-1622. [PMID: 29993125 DOI: 10.1002/bjs.10919] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 03/13/2018] [Accepted: 05/07/2018] [Indexed: 11/09/2022]
Abstract
BACKGROUND Surgical subspecialization has resulted in mastitis and breast abscesses being managed with unnecessary admission to hospital, prolonged inpatient stay, variable antibiotic prescribing, incision and drainage rather than percutaneous aspiration, and loss to specialist follow-up. The objective was to evaluate a best-practice algorithm with the aim of improving management of mastitis and breast abscesses across a multisite NHS Trust. The focus was on uniformity of antibiotic prescribing, ultrasound assessment, admission rates, length of hospital stay, intervention by aspiration or incision and drainage, and specialist follow-up. METHODS Management was initially evaluated in a retrospective cohort (phase I) and subsequently compared with that in two prospective cohorts after introduction of a breast abscess and mastitis pathway. One prospective cohort was analysed immediately after introduction of the pathway (phase II), and the second was used to assess the sustainability of the quality improvements (phase III). The overall impact of the pathway was assessed by comparing data from phase I with combined data from phases II and III; results from phases II and III were compared to judge sustainability. RESULTS Fifty-three patients were included in phase I, 61 in phase II and 80 in phase III. The management pathway and referral pro forma improved compliance with antibiotic guidelines from 34 per cent to 58·2 per cent overall (phases II and III) after implementation (P = 0·003). The improvement was maintained between phases II and III (54 and 61 per cent respectively; P = 0·684). Ultrasound assessment increased from 38 to 77·3 per cent overall (P < 0·001), in a sustained manner (75 and 79 per cent in phases II and III respectively; P = 0·894). Reductions in rates of incision and drainage (from 8 to 0·7 per cent overall; P = 0·007) were maintained (0 per cent in phase II versus 1 per cent in phase III; P = 0·381). Specialist follow-up improved consistently from 43 to 95·7 per cent overall (P < 0·001), 92 per cent in phase II and 99 per cent in phase III (P = 0·120). Rates of hospital admission and median length of stay were not significantly reduced after implementation of the pathway. CONCLUSION A standardized approach to mastitis and breast abscess reduced undesirable practice variation, with sustained improvements in process and patient outcomes.
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Affiliation(s)
- N Patani
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
| | - F MacAskill
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
| | - S Eshelby
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
| | - A Omar
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
| | - A Kaura
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
| | - K Contractor
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
| | - P Thiruchelvam
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK.,Department of Surgery and Cancer, Imperial College, London, UK
| | - S Curtis
- Department of Microbiology, Imperial College Healthcare NHS Trust, London, UK
| | - J Main
- Department of Infectious Diseases, Imperial College Healthcare NHS Trust, London, UK
| | - D Cunningham
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
| | - K Hogben
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
| | - R Al-Mufti
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK
| | - D J Hadjiminas
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK.,Department of Surgery and Cancer, Imperial College, London, UK
| | - D R Leff
- Breast Unit, Imperial College Healthcare NHS Trust, London, UK.,Department of Surgery and Cancer, Imperial College, London, UK
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Fisher RA, Muthuswamy K, Petrou F, Mavroveli S, Thiruchelvam P, Fisher C, Leff DR. Worldwide impact of the American college of surgeons oncology group Z0011 trial on rates of axillary lymph node dissection: A systematic review. Eur J Surg Oncol 2018. [DOI: 10.1016/j.ejso.2018.02.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
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Affiliation(s)
- Paul T R Thiruchelvam
- Academic Department of Breast Surgery, Imperial College Healthcare, London W6 8RF, UK.
| | - Carla S Fisher
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Daniel R Leff
- Departments of BioSurgery and Surgical Technology and Hamlyn Centre for Robotic Surgery, Imperial College London, London, UK
| | - Susan M Domchek
- Basser Center for BRCA and Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA, USA
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Orihuela-Espina F, Leff DR, James DRC, Darzi AW, Yang GZ. Imperial College near infrared spectroscopy neuroimaging analysis framework. Neurophotonics 2018; 5:011011. [PMID: 28948193 PMCID: PMC5603769 DOI: 10.1117/1.nph.5.1.011011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Accepted: 08/23/2017] [Indexed: 05/03/2023]
Abstract
This paper describes the Imperial College near infrared spectroscopy neuroimaging analysis (ICNNA) software tool for functional near infrared spectroscopy neuroimaging data. ICNNA is a MATLAB-based object-oriented framework encompassing an application programming interface and a graphical user interface. ICNNA incorporates reconstruction based on the modified Beer-Lambert law and basic processing and data validation capabilities. Emphasis is placed on the full experiment rather than individual neuroimages as the central element of analysis. The software offers three types of analyses including classical statistical methods based on comparison of changes in relative concentrations of hemoglobin between the task and baseline periods, graph theory-based metrics of connectivity and, distinctively, an analysis approach based on manifold embedding. This paper presents the different capabilities of ICNNA in its current version.
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Affiliation(s)
- Felipe Orihuela-Espina
- Imperial College London, Hamlyn Center for Robotic Surgery, United Kingdom
- Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE), Puebla, Mexico
- Address all correspondence to: Felipe Orihuela-Espina, E-mail:
| | - Daniel R. Leff
- Imperial College London, Hamlyn Center for Robotic Surgery, United Kingdom
| | - David R. C. James
- Imperial College London, Hamlyn Center for Robotic Surgery, United Kingdom
| | - Ara W. Darzi
- Imperial College London, Hamlyn Center for Robotic Surgery, United Kingdom
| | - Guang-Zhong Yang
- Imperial College London, Hamlyn Center for Robotic Surgery, United Kingdom
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Affiliation(s)
- Daniel R Leff
- Department of BioSurgery and Surgical Technology, Imperial College London, London, United Kingdom2Breast Unit, Charing Cross Hospital, Imperial College NHS Trust, London, United Kingdom
| | - Edward R St John
- Department of BioSurgery and Surgical Technology, Imperial College London, London, United Kingdom2Breast Unit, Charing Cross Hospital, Imperial College NHS Trust, London, United Kingdom
| | - Zoltan Takats
- Division of Computational and Systems Medicine, Imperial College London, London, United Kingdom
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50
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St John ER, Balog J, McKenzie JS, Rossi M, Covington A, Muirhead L, Bodai Z, Rosini F, Speller AVM, Shousha S, Ramakrishnan R, Darzi A, Takats Z, Leff DR. Rapid evaporative ionisation mass spectrometry of electrosurgical vapours for the identification of breast pathology: towards an intelligent knife for breast cancer surgery. Breast Cancer Res 2017; 19:59. [PMID: 28535818 PMCID: PMC5442854 DOI: 10.1186/s13058-017-0845-2] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 04/25/2017] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Re-operation for positive resection margins following breast-conserving surgery occurs frequently (average = 20-25%), is cost-inefficient, and leads to physical and psychological morbidity. Current margin assessment techniques are slow and labour intensive. Rapid evaporative ionisation mass spectrometry (REIMS) rapidly identifies dissected tissues by determination of tissue structural lipid profiles through on-line chemical analysis of electrosurgical aerosol toward real-time margin assessment. METHODS Electrosurgical aerosol produced from ex-vivo and in-vivo breast samples was aspirated into a mass spectrometer (MS) using a monopolar hand-piece. Tissue identification results obtained by multivariate statistical analysis of MS data were validated by histopathology. Ex-vivo classification models were constructed from a mass spectral database of normal and tumour breast samples. Univariate and tandem MS analysis of significant peaks was conducted to identify biochemical differences between normal and cancerous tissues. An ex-vivo classification model was used in combination with bespoke recognition software, as an intelligent knife (iKnife), to predict the diagnosis for an ex-vivo validation set. Intraoperative REIMS data were acquired during breast surgery and time-synchronized to operative videos. RESULTS A classification model using histologically validated spectral data acquired from 932 sampling points in normal tissue and 226 in tumour tissue provided 93.4% sensitivity and 94.9% specificity. Tandem MS identified 63 phospholipids and 6 triglyceride species responsible for 24 spectral differences between tissue types. iKnife recognition accuracy with 260 newly acquired fresh and frozen breast tissue specimens (normal n = 161, tumour n = 99) provided sensitivity of 90.9% and specificity of 98.8%. The ex-vivo and intra-operative method produced visually comparable high intensity spectra. iKnife interpretation of intra-operative electrosurgical vapours, including data acquisition and analysis was possible within a mean of 1.80 seconds (SD ±0.40). CONCLUSIONS The REIMS method has been optimised for real-time iKnife analysis of heterogeneous breast tissues based on subtle changes in lipid metabolism, and the results suggest spectral analysis is both accurate and rapid. Proof-of-concept data demonstrate the iKnife method is capable of online intraoperative data collection and analysis. Further validation studies are required to determine the accuracy of intra-operative REIMS for oncological margin assessment.
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Affiliation(s)
- Edward R. St John
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
| | - Julia Balog
- Division of Computational and Systems Medicine, Imperial College, London, UK
- Waters Research Centre, Budapest, Hungary
| | - James S. McKenzie
- Division of Computational and Systems Medicine, Imperial College, London, UK
| | - Merja Rossi
- Division of Computational and Systems Medicine, Imperial College, London, UK
| | - April Covington
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
| | - Laura Muirhead
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
| | - Zsolt Bodai
- Division of Computational and Systems Medicine, Imperial College, London, UK
| | - Francesca Rosini
- Division of Computational and Systems Medicine, Imperial College, London, UK
- Department of Pathology, Imperial College NHS Trust, London, UK
| | - Abigail V. M. Speller
- Division of Computational and Systems Medicine, Imperial College, London, UK
- Department of Pathology, Imperial College NHS Trust, London, UK
| | - Sami Shousha
- Department of Pathology, Imperial College NHS Trust, London, UK
| | | | - Ara Darzi
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
| | - Zoltan Takats
- Division of Computational and Systems Medicine, Imperial College, London, UK
- Sir Alexander Fleming Building, South Kensington Campus, Imperial College, London, SW7 2AZ UK
| | - Daniel R. Leff
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
- Department of BioSurgery and Surgical Technology, Clinical Senior Lecturer and Consultant Breast Surgeon, St Mary’s Hospital, 10th Floor, QEQM Wing, London, W2 1NY UK
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