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Shah V, Soh CL, Chhatwal K, Kucharczak J, Airapetyan AA, Avavde D, Torabi S, Mackenzie A, Miller G, Vardanyan R, Arjomandi Rad A, Malawana J. Autologous breast reconstruction in low- and middle-income countries (LMICs): a systematic review of current practices and challenges. Minerva Surg 2024; 79:73-81. [PMID: 38381032 DOI: 10.23736/s2724-5691.23.10111-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
INTRODUCTION Efforts to improve global healthcare persist, yet LMICs face challenges accessing surgical care, especially breast reconstruction amidst rising breast cancer cases. This review evaluates the present state and challenges of autologous breast reconstruction in low- and middle-income countries (LMICs). EVIDENCE ACQUISITION Utilizing the PRISMA guidelines and the Cochrane Collaboration's standards, databases such as EMBASE, MEDLINE, Cochrane, PubMed, and Google Scholar were examined for studies on breast reconstruction in LMICs (based on the World Bank's 2022-2023 definitions) up to August 2022. Articles and case reports focusing on autologous reconstruction following breast cancer surgery in these regions were incorporated. EVIDENCE SYNTHESIS From an initial 288 articles, 19 met the criteria after thorough assessment. These articles documented 4899 patient cases from LMICs, with the breakdown being: 11 on LD flaps, nine on TRAM flaps, eight on DIEP flaps, two on TDAP flaps, and one on TMG flap. Flap necrosis emerged as the prevalent complication in four studies. CONCLUSIONS While autologous breast reconstruction presents superior aesthetic benefits without notable long-term economic setbacks, its adoption in LMICs is limited. This is partly due to the domination of implant-based methods among patients and surgeons, selected due to convenience. The scarcity of concrete evidence and standardized metrics in LMICs clouds the understanding of this procedure. Despite its advantages, awareness is low, necessitating more training and awareness campaigns. Uniform reporting, quality data, and financial analysis can provide a comprehensive LMIC understanding, aiding future research.
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Affiliation(s)
- Viraj Shah
- Department of Medicine, Faculty of Medicine, Imperial College London, London, UK
| | - Chien L Soh
- School of Clinical Medicine, University of Cambridge, Cambridge, UK
| | - Karanjot Chhatwal
- Department of Medicine, Faculty of Medicine, Imperial College London, London, UK
| | | | - Arkady A Airapetyan
- Department of Research and Academia, National Institute of Health, Yerevan, Armenia
| | - Dani Avavde
- Department of Surgery, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Saeed Torabi
- Department of Anesthesia, University Hospital Cologne, Cologne, Germany
| | - Alexandra Mackenzie
- Department of Emergency Surgery, Chelsea and Westminster Hospital NHS Trust, London, UK
| | - George Miller
- Research Unit, The Healthcare Leadership Academy, London, UK
- Center for Digital Health and Education Research (CoDHER), University of Central Lancashire Medical School, Preston, UK
| | - Robert Vardanyan
- Department of Medicine, Faculty of Medicine, Imperial College London, London, UK -
| | - Arian Arjomandi Rad
- Research Unit, The Healthcare Leadership Academy, London, UK
- Center for Digital Health and Education Research (CoDHER), University of Central Lancashire Medical School, Preston, UK
- Clinical Academic Graduate School, The University of Oxford, Oxford, UK
| | - Johann Malawana
- Research Unit, The Healthcare Leadership Academy, London, UK
- Center for Digital Health and Education Research (CoDHER), University of Central Lancashire Medical School, Preston, UK
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Cavalcante FP, Zerwes FP, Millen EC. Immediate breast reconstruction and COVID-19 pandemic: the day after. Breast Cancer Res Treat 2023; 202:617-618. [PMID: 37668822 DOI: 10.1007/s10549-023-07077-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 08/07/2023] [Indexed: 09/06/2023]
Affiliation(s)
| | - Felipe Pereira Zerwes
- Pontificia Universidade Católica do Rio Grande do Sul (PUCRS), Rio Grande do Sul, Brazil
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Gao W, Lu Y, Huang O, Chen X, He J, Chen W, Li Y, Xu H, Wu J, Shen K. Safety analysis of immediate breast reconstruction with a deep inferior epigastric perforator (DIEP) flap in the post-COVID-19 era: a comparison between pre- and post-pandemic cohorts. Gland Surg 2023; 12:1475-1484. [PMID: 38107490 PMCID: PMC10721559 DOI: 10.21037/gs-23-143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 09/17/2023] [Indexed: 12/19/2023]
Abstract
Background The demand for immediate breast reconstruction with a deep inferior epigastric perforator (DIEP) flap is recovering as coronavirus disease 2019 (COVID-19) transitions from a pandemic to an endemic. This study sought to evaluate the safety of resuming DIEP flap reconstruction in the post-COVID-19 era. Methods Consecutive breast cancer patients who underwent immediate breast reconstruction with a DIEP flap at the Comprehensive Breast Health Center, Ruijin Hospital were retrospectively included in the study. The patients were divided into a post-pandemic group (Group A) and a pre-pandemic group (Group B). The clinicopathological factors, surgical procedures, and rates of post-operative complications were compared between the two groups using the Mann-Whitney U test and Chi-squared test. Results A total of 167 patients were included in the study, of whom 119 (71.3%) were in Group A and 48 (28.7%) were in Group B. The two groups had similar clinicopathological features, including age (P=0.988), body mass index (P=0.504), and tumor, node, metastasis (TNM) stage (P=0.932). The Group A patients were more likely to receive single perforator DIEP flap transplantation than the Group B patients (n=28, 22.8% vs. n=3, 5.8%, P=0.007). There was a numerical decrease in the mean operating time of Group A patients compared to Group B patients (9.82 vs. 10.12 hours, P=0.172). The mean length of stay after the surgery was significantly shorter after the pandemic than before the pandemic (11.2 vs. 14.3 days, P<0.001). The complication rates between the two groups were similar. Conclusions This study provides evidence that resuming DIEP reconstruction is safe in the post-COVID-19 era.
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Affiliation(s)
- Weiqi Gao
- Department of General Surgery, Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yujie Lu
- Department of General Surgery, Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ou Huang
- Department of General Surgery, Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaosong Chen
- Department of General Surgery, Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianrong He
- Department of General Surgery, Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weiguo Chen
- Department of General Surgery, Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yafen Li
- Department of General Surgery, Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hua Xu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiayi Wu
- Department of General Surgery, Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Kunwei Shen
- Department of General Surgery, Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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da Silva DM, Castro RCMB, Fernandes AFC, Corpes EDF, dos Santos CPRS, Rodrigues AB. Factors associated with the time to treat breast cancer in the pandemic period: an observational study. Rev Bras Enferm 2023; 76Suppl 1:e20220428. [PMID: 37556674 PMCID: PMC10405389 DOI: 10.1590/0034-7167-2022-0428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 01/03/2023] [Indexed: 08/11/2023] Open
Abstract
OBJECTIVES to analyze the factors associated with the time to surgical treatment for breast cancer in patients seen at a reference mastology outpatient clinic in the State of Ceará. METHODS analytical, longitudinal study with medical charts from the Mastology Outpatient Clinic of Assis Chateaubriand Maternity School. We used 140 medical charts of breast cancer patients with surgeries performed during the pandemic. RESULTS the study evidenced associations between schooling and shorter time to treatment in patients who underwent biopsy before the first outpatient visit (p = 0.026; OR: 0.16; CI = 0.03-0.85); in the group who had the biopsy performed by the outpatient clinic, was associated the type of tumor (p = 0.019) and neoadjuvant therapy (p = 0.000). CONCLUSIONS the lesser educational level, tumor type, and use of neoadjuvant therapy were factors associated with the time to treatment during the pandemic period.
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Oladeru OT, Dunn SA, Li J, Coles CE, Yamauchi C, Chang JS, Cheng SHC, Kaidar-Person O, Meattini I, Ramiah D, Kirby A, Hijal T, Marta GN, Poortmans P, Isern-Verdum J, Zissiadis Y, Offersen BV, Refaat T, Elsayad K, Hijazi H, Dengina N, Belkacemi Y, Luo FD, Lu S, Griffin C, Collins M, Ryan P, Larios D, Warren LE, Punglia RS, Wong JS, Spiegel DY, Jagsi R, Taghian A, Bellon JR, Ho AY. Looking Back: International Practice Patterns in Breast Radiation Oncology From a Case-Based Survey Across 54 Countries During the First Surge of the COVID-19 Pandemic. JCO Glob Oncol 2023; 9:e2300010. [PMID: 37471670 PMCID: PMC10581620 DOI: 10.1200/go.23.00010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 05/16/2023] [Indexed: 07/22/2023] Open
Abstract
PURPOSE The COVID-19 pandemic has profoundly affected cancer care worldwide, including radiation therapy (RT) for breast cancer (BC), because of risk-based resource allocation. We report the evolution of international breast RT practices during the beginning of the pandemic, focusing on differences in treatment recommendations between countries. MATERIALS AND METHODS Between July and November 2020, a 58-question survey was distributed to radiation oncologists (ROs) through international professional societies. Changes in RT decision making during the first surge of the pandemic were evaluated across six hypothetical scenarios, including the management of ductal carcinoma in situ (DCIS), early-stage, locally advanced, and metastatic BC. The significance of changes in responses before and during the pandemic was examined using chi-square and McNemar-Bowker tests. RESULTS One thousand one hundred three ROs from 54 countries completed the survey. Incomplete responses (254) were excluded from the analysis. Most respondents were from the United States (285), Japan (117), Italy (63), Canada (58), and Brazil (56). Twenty-one percent (230) of respondents reported treating at least one patient with BC who was COVID-19-positive. Approximately 60% of respondents reported no change in treatment recommendation during the pandemic, except for patients with metastatic disease, for which 57.7% (636/1,103; P < .0005) changed their palliative practice. Among respondents who noted a change in their recommendation during the first surge of the pandemic, omitting, delaying, and adopting short-course RT were the most frequent changes, with most transitioning to moderate hypofractionation for DCIS and early-stage BC. CONCLUSION Early in the COVID-19 pandemic, significant changes in global RT practice patterns for BC were introduced. The impact of published results from the FAST FORWARD trial supporting ultrahypofractionation likely confounded the interpretation of the pandemic's independent influence on RT delivery.
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Affiliation(s)
| | - Samantha A. Dunn
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA
| | - Jian Li
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA
| | - Charlotte E. Coles
- Department of Oncology, University of Cambridge, Cambridge, United Kingdom
| | - Chikako Yamauchi
- Department of Radiation Oncology, Shiga General Hospital, Shiga, Japan
- The Corona Countermeasures Executing Group of the Japanese Society for Radiation Oncology, Japan
| | - Jee Suk Chang
- Department of Radiation Oncology, Yonsei Cancer Center, Seoul, South Korea
| | - Skye Hung-Chun Cheng
- Department of Radiation Oncology, Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan
| | - Orit Kaidar-Person
- Department of Radiation Oncology, Sheba Tel Hashomer, Ramat Gan, Israel
- Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
- GROW-School for Oncology and Developmental Biology or GROW (Maastro), Maastricht University, Maastricht, The Netherlands
| | - Icro Meattini
- Department of Experimental and Clinical Biomedical Sciences “M. Serio,” University of Florence, Florence, Italy
- Radiation Oncology Unit, Oncology Department, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
| | - Duvern Ramiah
- Division of Radiation Oncology, University of the Witwatersrand, Johannesburg, South Africa
| | - Anna Kirby
- Department of Radiotherapy, Royal Marsden NHS Foundation Trust and Institute of Cancer Research, Sutton, United Kingdom
| | - Tarek Hijal
- Division of Radiation Oncology, McGill University Health Centre, Montreal, QC, Canada
| | | | - Philip Poortmans
- Iridium Netwerk and University of Antwerp, Wilrijk Antwerp, Belgium
| | - Josep Isern-Verdum
- Department of Radiation Oncology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | | | - Birgitte Vrou Offersen
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - Tamer Refaat
- Department of Radiation Oncology, Stritch School of Medicine, Cardinal Bernardin Cancer Center, Loyola University Chicago, Maywood, IL
| | - Khaled Elsayad
- Department of Radiation Oncology, University Hospital Muenster, Muenster, Germany
| | - Hussam Hijazi
- Department of Radiation Oncology, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Natalia Dengina
- Department of Radiotherapy, Ulyanovsk Regional Cancer Center, Ulyanovsk Oblast, Russia
| | - Yazid Belkacemi
- Department of Radiation Oncology and Henri Mondor Breast Center, INSERM 955 i-Biot Unit, University of Paris-Est (UPEC), Creteil, France
| | - Feng Deng Luo
- Department of Radiation Oncology and Henri Mondor Breast Center, INSERM 955 i-Biot Unit, University of Paris-Est (UPEC), Creteil, France
| | - Shun Lu
- Department of Radiation Oncology Center, Sichuan Cancer Center, Chengdu, China
| | - Colleen Griffin
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA
| | - Maya Collins
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA
| | - Phoebe Ryan
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA
| | - Dalia Larios
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA
| | - Laura E. Warren
- Department of Radiation Oncology, Brigham & Women's Hospital/Dana Farber Cancer Institute, Boston, MA
| | - Rinaa S. Punglia
- Department of Radiation Oncology, Brigham & Women's Hospital/Dana Farber Cancer Institute, Boston, MA
| | - Julia S. Wong
- Department of Radiation Oncology, Brigham & Women's Hospital/Dana Farber Cancer Institute, Boston, MA
| | - Daphna Y. Spiegel
- Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Boston, MA
| | - Reshma Jagsi
- Department of Radiation Oncology, Emory University School of Medicine, Atlanta, GA
| | - Alphonse Taghian
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA
| | - Jennifer R. Bellon
- Department of Radiation Oncology, Brigham & Women's Hospital/Dana Farber Cancer Institute, Boston, MA
| | - Alice Y. Ho
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC
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Prodhan AHMSU, Islam DZ, Khandker SS, Jamiruddin MR, Abdullah A, Godman B, Opanga S, Kumar S, Sharma P, Adnan N, Pisana A, Haque M. Breast Cancer Management in the Era of Covid-19; Key Issues, Contemporary Strategies, and Future Implications. BREAST CANCER (DOVE MEDICAL PRESS) 2023; 15:51-89. [PMID: 36733464 PMCID: PMC9888303 DOI: 10.2147/bctt.s390296] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 01/19/2023] [Indexed: 01/28/2023]
Abstract
During the COVID-19 pandemic, several priority diseases were not getting sufficient attention. Whilst breast cancer is a fatal disease affecting millions worldwide, identification and management of these patients did not initially attract critical attention to minimize the impact of lockdown, post-lockdown, and other measures. Breast cancer patients' conditions may not remain stable without proper care, worsening their prognosis. Proper care includes the timely instigation of surgery, systemic therapy, and psychological support. This includes low-and middle-income countries where there are already concerns with available personnel and medicines to adequately identify and treat these patients. Consequently, there was a need to summarize the current scenario regarding managing breast cancer care during COVID-19 across all countries, including any guidelines developed. We systematically searched three scientific databases and found 76 eligible articles covering the medical strategies of high-income countries versus LMICs. Typically, diagnostic facilities in hospitals were affected at the beginning of the pandemic following the lockdown and other measures. This resulted in more advanced-stage cancers being detected at initial presentation across countries, negatively impacting patient outcomes. Other than increased telemedicine, instigating neo-adjuvant endocrine therapy more often, reducing non-essential visits, and increasing the application of neo-adjuvant chemotherapy to meet the challenges, encouragingly, there was no other significant difference among patients in high-income versus LMICs. Numerous guidelines regarding patient management evolved during the pandemic to address the challenges posed by lockdowns and other measures, which were subsequently adopted by various high-income countries and LMICs to improve patient care. The psychological impact of COVID-19 and associated lockdown measures, especially during the peak of COVID-19 waves, and the subsequent effect on the patient's mental health must also be considered in this high-priority group. We will continue to monitor the situation to provide direction in future pandemics.
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Affiliation(s)
| | - Dewan Zubaer Islam
- Department of Microbiology, Jahangirnagar University, Dhaka, 1342, Bangladesh
| | - Shahad Saif Khandker
- Department of Biochemistry, Gonoshasthaya Samaj Vittik Medical College, Dhaka, 1344, Bangladesh
| | | | - Adnan Abdullah
- Unit of Occupational Medicine, Faculty of Medicine and Defence Health, Universiti Pertahanan Nasional Malaysia, (National Defence University of Malaysia), Kuala Lumpur, 57000, Malaysia
| | - Brian Godman
- Department of Pharmacoepidemiology, Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK,Centre of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates,Division of Public Health Pharmacy and Management, School of Pharmacy, Sefako Makgatho Health Sciences University, Ga-Rankuwa, South Africa
| | - Sylvia Opanga
- Department of Pharmacy, University of Nairobi, Nairobi, Kenya
| | - Santosh Kumar
- Department of Periodontology and Implantology, Karnavati School of Dentistry, Karnavati University, Gandhinagar, Gujarat, India
| | - Paras Sharma
- Department of Pharmacognosy, BVM College of Pharmacy, Gwalior, Madhya Pradesh, 474006, India
| | - Nihad Adnan
- Department of Microbiology, Jahangirnagar University, Dhaka, 1342, Bangladesh,Correspondence: Nihad Adnan, Department of Microbiology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh, Email ;Mainul Haque, The Unit of Pharmacology, Faculty of Medicine and Defence Health, Universiti Pertahanan, Nasional Malaysia (National Defence University of Malaysia), Kem Perdana Sugai Besi, Kuala Lumpur 57000, Malaysia, Tel +60109265543, Email
| | - Alice Pisana
- Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden
| | - Mainul Haque
- The Unit of Pharmacology, Faculty of Medicine and Defence Health, Universiti Pertahanan, Nasional Malaysia (National Defence University of Malaysia), Kuala Lumpur, 57000, Malaysia
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Martínez-Pérez C, Turnbull AK, Kay C, Dixon JM. Neoadjuvant endocrine therapy in postmenopausal women with HR+/HER2- breast cancer. Expert Rev Anticancer Ther 2023; 23:67-86. [PMID: 36633402 DOI: 10.1080/14737140.2023.2162043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 12/20/2022] [Indexed: 01/13/2023]
Abstract
INTRODUCTION While endocrine therapy is the standard-of-care adjuvant treatment for hormone receptor-positive (HR+) breast cancers, there is also extensive evidence for the role of pre-operative (or neoadjuvant) endocrine therapy (NET) in HR+ postmenopausal women. AREAS COVERED We conducted a thorough review of the published literature, to summarize the evidence to date, including studies of how NET compares to neoadjuvant chemotherapy, which NET agents are preferable, and the optimal duration of NET. We describe the importance of on-treatment assessment of response, the different predictors available (including Ki67, PEPI score, and molecular signatures) and the research opportunities the pre-operative setting offers. We also summarize recent combination trials and discuss how the COVID-19 pandemic led to increases in NET use for safe management of cases with deferred surgery and adjuvant treatments. EXPERT OPINION NET represents a safe and effective tool for the management of postmenopausal women with HR+/HER2- breast cancer, enabling disease downstaging and a wider range of surgical options. Aromatase inhibitors are the preferred NET, with evidence suggesting that longer regimens might yield optimal results. However, NET remains currently underutilised in many territories and institutions. Further validation of predictors for treatment response and benefit is needed to help standardise and fully exploit the potential of NET in the clinic.
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Affiliation(s)
- Carlos Martínez-Pérez
- Translational Oncology Research Group, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland
- Edinburgh Breast Cancer Now Research Team, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland
| | - Arran K Turnbull
- Translational Oncology Research Group, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland
- Edinburgh Breast Cancer Now Research Team, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland
| | - Charlene Kay
- Translational Oncology Research Group, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland
- Edinburgh Breast Cancer Now Research Team, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland
| | - J Michael Dixon
- Translational Oncology Research Group, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland
- Edinburgh Breast Cancer Now Research Team, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland
- Edinburgh Breast Unit, Western General Hospital, Edinburgh, Scotland
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Duarte MB, Argenton JL, Carvalheira JB. Impact of COVID-19 in Cervical and Breast Cancer Screening and Systemic Treatment in São Paulo, Brazil: An Interrupted Time Series Analysis. JCO Glob Oncol 2022; 8:e2100371. [PMID: 35696624 PMCID: PMC9225667 DOI: 10.1200/go.21.00371] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE COVID-19 caused a disruption in cancer management around the world, resulting in an estimated excess burden secondary to screening disruption and excess lag time for treatment initiation. METHODS We gathered information from primary reimbursement data sets of the public health system of São Paulo, Brazil, from April 2020 to November 2021, and compared these data with those of the pre–COVID-19 period. We used an interrupted time series model to estimate the effect of the COVID-19 pandemic on the rate of key procedures of breast and cervical cancer health care chain. RESULTS We estimated that 1,149,727, 2,693, and 713,616 pap smears, conizations, and mammograms, respectively, were missed or delayed during the COVID-19 pandemic, compared with those in the years immediately before the COVID-19 stay-at-home restrictions. Specifically, we observed an acute decrease of procedures after the COVID-19 stay-at-home restrictions, with a trend to recovery in the long term. Regarding the systemic treatment analysis, we observed a 25% reduction in the rate of initiation of adjuvant systemic treatment for early breast cancer (stage I/II). However, we did not find a clear effect on the other settings of systemic treatment for breast cancer. We estimated an excess of 156 patients starting palliative care for cervical cancer after the COVID-19 stay-at-home restrictions. CONCLUSION The COVID-19 pandemic significantly reduced the performance rate of pap smears, conizations, and mammograms. The initiation of adjuvant treatment for early-stage breast cancer was most susceptible to COVID-19's health system disruption. Furthermore, the downward trend of treatment of advanced cervical cancer was interrupted. Therefore, public health policies are urgently needed to decrease the incidence of advanced cervical and breast cancers caused by delayed diagnosis and treatment initiation. The COVID-19 control policies resulted in reduction of cancer patients' delivery of care. This study evaluated the pandemic's influence in key procedures of breast and cervical cancer chain of care in São Paulo, Brazil. We observed a substantial reduction in the number of mammograms, pap smears, and conizations performed since the onset of the COVID-19 pandemic. In addition, stage I and II breast cancer adjuvant treatment presented a reduced realization rate, whereas palliative treatment delivered for advanced cervical cancer increased. Our results support the need for public health policies focused on mitigating the long-term effects of COVID-19 in cancer-related mortality.
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Affiliation(s)
- Mateus B.O. Duarte
- Division of Oncology, Department of Anesthesiology, Oncology and Radiology, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
- Uberlândia Cancer Hospital, Federal University of Uberlândia, UFU, Uberlândia, Minas Gerais, Brazil
| | - Juliana L.P. Argenton
- Fundação de Desenvolvimento da Universidade Estadual de Campinas (FUNCAMP), Campinas, São Paulo, Brazil
| | - José B.C. Carvalheira
- Division of Oncology, Department of Anesthesiology, Oncology and Radiology, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
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Cavalcante FP, Abdala E, Weissmann L, Ferreira CEDS, Amorim G, de Oliveira VM, Guilgen G, Landeiro L, Pinho JRR, Pulchinelli Á, Ribeiro H, Souza R, Rosa DD. Impact of COVID-19 Disease in Early Breast Cancer Management: A Summary of the Current Evidence. JCO Glob Oncol 2022; 8:e2100357. [PMID: 35594492 PMCID: PMC9173577 DOI: 10.1200/go.21.00357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
An expert panel on breast cancer and COVID-19 disease was convened to address the impact of the COVID-19 pandemic for early breast cancer (eBC) management.
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Affiliation(s)
| | - Edson Abdala
- Department of Infectious and Parasitic Diseases, School of Medicine, University of São Paulo (USP), São Paulo, SP, Brazil
| | - Leonardo Weissmann
- Emílio Ribas Infectious Disease Institute, São Paulo, SP, Brazil
- Unaerp School of Medicine, Guarujá, SP, Brazil
- Brazilian Society of Infectology, São Paulo, SP, Brazil
| | | | - Gilberto Amorim
- Oncologia D'Or, Rio de Janeiro, RJ, Brazil
- Brazilian Breast Cancer Study Group (GBECAM), Porto Alegre, RS, Brazil
| | - Vilmar Marques de Oliveira
- Brazilian Society of Mastology, Rio de Janeiro, RJ, Brazil
- Santa Casa de São Paulo Hospital, São Paulo, SP, Brazil
- Santa Casa de São Paulo School of Medical Sciences, São Paulo, SP, Brazil
| | - Gisah Guilgen
- Brazilian Breast Cancer Study Group (GBECAM), Porto Alegre, RS, Brazil
- Curitiba Cancer and Transplant Institute, Curitiba, PR, Brazil
- Nossa Senhora das Graças Hospital, Curitiba, PR, Brazil
| | - Luciana Landeiro
- Núcleo de Oncologia da Bahia (NOB)—Oncoclínicas Group, Salvador, BA, Brazil
| | - João Renato Rebello Pinho
- Albert Einstein Hospital, São Paulo, SP, Brazil
- Hospital das Clínicas, São Paulo, SP, Brazil
- School of Medicine, Medical Research Laboratories LIM 03/07, University of São Paulo, São Paulo, SP, Brazil
| | - Álvaro Pulchinelli
- Brazilian Society of Clinical Pathology/Laboratory Medicine, Rio de Janeiro, RJ, Brazil
- Fleury Group, São Paulo, SP, Brazil
- School of Medicine, Federal University of São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Heber Ribeiro
- Brazilian Society of Oncology Surgery, Rio de Janeiro, RJ, Brazil
- AC Camargo Cancer Center, São Paulo, SP, Brazil
| | - Rafael Souza
- Cancer Treatment Institute (ITC), Campo Grande, MS, Brazil
| | - Daniela Dornelles Rosa
- Brazilian Breast Cancer Study Group (GBECAM), Porto Alegre, RS, Brazil
- Moinhos de Vento Hospital, Porto Alegre, RS, Brazil
- Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
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10
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Chiang SN, Finnan MJ, Skolnick GB, Sacks JM, Christensen JM. The impact of the COVID-19 pandemic on alloplastic breast reconstruction: An analysis of national outcomes. J Surg Oncol 2022; 126:195-204. [PMID: 35389527 PMCID: PMC9088498 DOI: 10.1002/jso.26883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/22/2022] [Accepted: 03/27/2022] [Indexed: 11/16/2022]
Abstract
Background Immediate alloplastic breast reconstruction shifted to the outpatient setting during the COVID‐19 pandemic to conserve inpatient hospital beds while providing timely oncologic care. We examine the National Surgical Quality Improvement Program (NSQIP) database for trends in and safety of outpatient breast reconstruction during the pandemic. Methods NSQIP data were filtered for immediate alloplastic breast reconstructions between April and December of 2019 (before‐COVID) and 2020 (during‐COVID); the proportion of outpatient procedures was compared. Thirty‐day complications were compared for noninferiority between propensity‐matched outpatients and inpatients utilizing a 1% risk difference margin. Results During COVID, immediate alloplastic breast reconstruction cases decreased (4083 vs. 4677) and were more frequently outpatient (31% vs. 10%, p < 0.001). Outpatients had lower rates of smoking (6.8% vs. 8.4%, p = 0.03) and obesity (26% vs. 33%, p < 0.001). Surgical complication rates of outpatient procedures were noninferior to propensity‐matched inpatients (5.0% vs. 5.5%, p = 0.03 noninferiority). Reoperation rates were lower in propensity‐matched outpatients (5.2% vs. 8.0%, p = 0.003). Conclusion Immediate alloplastic breast reconstruction shifted towards outpatient procedures during the COVID‐19 pandemic with noninferior complication rates. Therefore, a paradigm shift towards outpatient reconstruction for certain patients may be safe. However, decreased reoperations in outpatients may represent undiagnosed complications and warrant further investigation.
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Affiliation(s)
- Sarah N Chiang
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Michael J Finnan
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Gary B Skolnick
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Justin M Sacks
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Joani M Christensen
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
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11
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Impact of the COVID-19 pandemic on breast surgery and breast reconstruction in a Japanese university hospital setting. Arch Plast Surg 2022; 49:132-136. [PMID: 35086324 PMCID: PMC8795639 DOI: 10.5999/aps.2021.01438] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 09/30/2021] [Indexed: 11/08/2022] Open
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12
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Breast Reconstruction during the COVID-19 Pandemic: A Systematic Review. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2021; 9:e3852. [PMID: 34584831 PMCID: PMC8460228 DOI: 10.1097/gox.0000000000003852] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 08/16/2021] [Indexed: 12/13/2022]
Abstract
Introduction The COVID-19 pandemic posed unique challenges for breast reconstruction. Many professional organizations initially placed restrictions on breast reconstruction, leading surgeons to conceive innovative protocols for offering breast reconstruction. This study reviewed the current evidence on breast reconstruction during the COVID-19 pandemic to provide guidance for surgeons facing future crises. Methods The MEDLINE, EMBASE, and Cochrane Database of Systematic Reviews were searched for studies (1) describing implant and autologous breast reconstruction following mastectomy and (2) occurring during or pertaining to the COVID-19 pandemic. Results Of the 1347 studies identified, 26 were included. Studies discussed type of reconstruction (18, 69%), complications (11, 42%), timing of reconstruction (10, 38%), protocols (10, 38%), COVID-19 screening (7, 27%), and length of hospital stay (7, 27%). The type of reconstruction varied depending on the stage of the pandemic: early on, autologous breast reconstruction was halted to preserve resources, but was later resumed. Within implant-based reconstruction, direct-to-implant was favored over serial tissue expansion. Several protocols were developed, with many emphasizing multidisciplinary collaborations for patient selection, use of specialized measures to reduce risk of COVID-19 transmission, and optimization of same-day discharge. Complication rates following breast reconstruction were similar to pre-pandemic rates. Conclusions The COVID-19 pandemic has forever changed the landscape of breast reconstruction by raising important questions about delivery of care, cost, and resource utilization. The findings of this review may inform surgeons as they plan for similar future crises or strive for improved patient care and efficacy even during nonpandemic times.
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13
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Cavalcante FP. Breast cancer care: Looking for the new normal. Semin Oncol 2021; 48:236-237. [PMID: 34429199 DOI: 10.1053/j.seminoncol.2021.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 07/22/2021] [Indexed: 11/11/2022]
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14
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Bose P, Roy S, Ghosh P. A Comparative NLP-Based Study on the Current Trends and Future Directions in COVID-19 Research. IEEE ACCESS : PRACTICAL INNOVATIONS, OPEN SOLUTIONS 2021; 9:78341-78355. [PMID: 34786315 PMCID: PMC8545210 DOI: 10.1109/access.2021.3082108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 05/15/2021] [Indexed: 05/03/2023]
Abstract
COVID-19 is a global health crisis that has altered human life and still promises to create ripples of death and destruction in its wake. The sea of scientific literature published over a short time-span to understand and mitigate this global phenomenon necessitates concerted efforts to organize our findings and focus on the unexplored facets of the disease. In this work, we applied natural language processing (NLP) based approaches on scientific literature published on COVID-19 to infer significant keywords that have contributed to our social, economic, demographic, psychological, epidemiological, clinical, and medical understanding of this pandemic. We identify key terms appearing in COVID literature that vary in representation when compared to other virus-borne diseases such as MERS, Ebola, and Influenza. We also identify countries, topics, and research articles that demonstrate that the scientific community is still reacting to the short-term threats such as transmissibility, health risks, treatment plans, and public policies, underpinning the need for collective international efforts towards long-term immunization and drug-related challenges. Furthermore, our study highlights several long-term research directions that are urgently needed for COVID-19 such as: global collaboration to create international open-access data repositories, policymaking to curb future outbreaks, psychological repercussions of COVID-19, vaccine development for SARS-CoV-2 variants and their long-term efficacy studies, and mental health issues in both children and elderly.
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Affiliation(s)
- Priyankar Bose
- Department of Computer ScienceVirginia Commonwealth UniversityRichmondVA23284USA
| | - Satyaki Roy
- Department of GeneticsUniversity of North Carolina at Chapel HillChapel HillNC27515USA
| | - Preetam Ghosh
- Department of Computer ScienceVirginia Commonwealth UniversityRichmondVA23284USA
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15
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Obeng-Gyasi S, Coles CE, Jones J, Sacks R, Lightowlers S, Bliss JM, Brunt AM, Haviland JS, Kirby AM, Kalinsky K. When the World Throws You a Curve Ball: Lessons Learned in Breast Cancer Management. Am Soc Clin Oncol Educ Book 2021; 41:1-11. [PMID: 33956493 DOI: 10.1200/edbk_320691] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In the care of patients with operable breast cancer, there has been a shift toward increasing use of neoadjuvant therapy. There are benefits to neoadjuvant therapy, such as monitoring for response, as well as an increased rate of breast conservation and reduction of potential morbidity associated with breast surgery, including axillary management. Among patients with highly proliferative tumors, such as HER2-positive or triple-negative breast cancer, those with residual disease are at higher risk of recurrence, which informs the recommended systemic therapy in the adjuvant setting. For instance, in patients with residual disease after neoadjuvant chemotherapy and HER2-targeted therapy, there is a role for adjuvant trastuzumab emtansine for those with residual disease at the time of surgery. The same holds true regarding the role of adjuvant capecitabine in patients with residual disease after neoadjuvant chemotherapy. With the added complexities of treating patients in the era of the COVID-19 outbreak, additional considerations are critical, including initiation of surgery within an appropriate time from completion of neoadjuvant therapy. National consensus guidelines on time to surgery must be developed to improve measurement and comparison across systems. In addition, there is emerging radiation treatment management research addressing a number of factors, including hypofractionation, role of proton beam therapy, safe omission of radiotherapy, and preoperative radiotherapy with or without drug combination. In this article, the multidisciplinary approach of treating patients with operable breast cancer is highlighted, with updates and future considerations described.
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Affiliation(s)
- Samilia Obeng-Gyasi
- Division of Surgical Oncology, Department of Surgery, The Ohio State University, Columbus, OH
| | - Charlotte E Coles
- Department of Oncology, University of Cambridge, Cambridge, United Kingdom
| | - Jade Jones
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA
| | - Ruth Sacks
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA
| | - Sara Lightowlers
- Department of Oncology, University of Cambridge, Cambridge, United Kingdom
- Clinical Trials and Statistics Unit, The Institute of Cancer Research, London, United Kingdom
| | - Judith M Bliss
- Clinical Trials and Statistics Unit, The Institute of Cancer Research, London, United Kingdom
| | - A Murray Brunt
- School of Medicine, University of Keele, Keele, United Kingdom
| | - Joanne S Haviland
- Clinical Trials and Statistics Unit, The Institute of Cancer Research, London, United Kingdom
| | - Anna M Kirby
- Department of Radiotherapy, Royal Marsden National Health Service Foundation Trust and The Institute of Cancer Research, London, United Kingdom
| | - Kevin Kalinsky
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA
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16
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Marques NP, Silveira DMM, Marques NCT, Martelli DRB, Oliveira EA, Martelli-Júnior H. Cancer diagnosis in Brazil in the COVID-19 era. Semin Oncol 2021; 48:156-159. [PMID: 33478743 PMCID: PMC7789866 DOI: 10.1053/j.seminoncol.2020.12.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/28/2020] [Accepted: 12/28/2020] [Indexed: 12/14/2022]
Abstract
The comprehensive care and treatment for cancer patients in Brazil, regulated by the National Cancer Prevention and Control Policy, is provided by Brazilian Unified Healthcare System (SUS) in certified health institution. Due the COVID-19 pandemic, several restrictive measures have been implemented by the State federation's governments, and cancer diagnosis reference centers were also impacted by these measures. Thus, this study aimed to compare SUS-oriented cancer diagnosis in Brazil before and during the pandemic so far. The average number of cancer diagnoses has dropped considerably in all Brazilian Regions since the pandemic period started. The number of new cancer cases has plunged in all regions, ranged from -24.3% in the North to -42.7% in Northeast region. The overall Brazilian average deficit reached 35.5%, corresponding to about 15,000 undiagnosed cases of cancer monthly. The pandemic period has dramatically reduced the diagnosis of new cases of cancer in Brazil, since consultations in public health services were compromised by restrictive measures. Therefore, effective measures must be urgently put in action in order to minimize the damage, and consequently, the negative health impacts caused by the COVID-19 pandemic in the care of cancer patients.
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Affiliation(s)
| | - Denise Maria M Silveira
- Primary Care Postgraduate Program, State University of Montes Claros Unimontes, Minas Gerais, Brazil
| | - Nádia Carolina Teixeira Marques
- José do Rosario Vellano University, Minas Gerais, Brazil; Center for Rehabilitation of Craniofacial Anomalies, University of Alfenas, Minas Gerais, Brazil
| | - Daniella Reis Barbosa Martelli
- Primary Care Postgraduate Program, State University of Montes Claros Unimontes, Minas Gerais, Brazil; University of California, San Diego, La Jolla, CA, USA
| | - Eduardo A Oliveira
- University of California, San Diego, La Jolla, CA, USA; Department of Pediatrics, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Minas Gerais, Brazil
| | - Hercílio Martelli-Júnior
- Primary Care Postgraduate Program, State University of Montes Claros Unimontes, Minas Gerais, Brazil; Center for Rehabilitation of Craniofacial Anomalies, University of Alfenas, Minas Gerais, Brazil
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17
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Parmar HS, Nayak A, Gavel PK, Jha HC, Bhagwat S, Sharma R. Cross Talk between COVID-19 and Breast Cancer. Curr Cancer Drug Targets 2021; 21:575-600. [PMID: 33593260 DOI: 10.2174/1568009621666210216102236] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/17/2020] [Accepted: 12/26/2020] [Indexed: 01/08/2023]
Abstract
Cancer patients are more susceptible to COVID-19; however, the prevalence of COVID-19 in different types of cancer is still inconsistent and inconclusive. Here, we delineate the intricate relationship between breast cancer and COVID-19. Breast cancer and COVID-19 share the involvement of common comorbidities, hormonal signalling pathways, gender differences, rennin- angiotensin system (RAS), angiotensin-converting enzyme-2 (ACE-2), transmembrane protease serine 2 (TMPRSS2) and dipeptidyl peptidase-IV (DPP-IV). We also shed light on the possible effects of therapeutic modalities of COVID-19 on breast cancer outcomes. Briefly, we conclude that breast cancer patients are more susceptible to COVID-19 in comparison with their normal counterparts. Women are more resistant to the occurrence and severity of COVID-19. Increased expressions of ACE2 and TMPRSS2 are correlated with occurrence and severity of COVID-19, but higher expression of ACE2 and lower expression of TMPRSS2 are prognostic markers for overall disease free survival in breast cancer. The ACE2 inhibitors and ibuprofen therapies for COVID-19 treatment may aggravate the clinical condition of breast cancer patients through chemo-resistance and metastasis. Most of the available therapeutic modalities for COVID-19 were also found to exert positive effects on breast cancer outcomes. Besides drugs in clinical trend, TMPRSS2 inhibitors, estrogen supplementation, androgen deprivation and DPP-IV inhibitors may also be used to treat breast cancer patients infected with SARS-CoV-2. However, drug-drug interactions suggest that some of the drugs used for the treatment of COVID-19 may modulate the drug metabolism of anticancer therapies which may lead to adverse drug reaction events.
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Affiliation(s)
| | - Aakruti Nayak
- School of Biotechnology, Devi Ahilya University, Indore-452001. M.P., India
| | - Pramod Kumar Gavel
- Department of Chemical Sciences, IIT, Indore, Simrol, Indore, M.P., India
| | - Hem Chandra Jha
- Department of Bioscience and Bioengineering, IIT, Indore, Simrol, Indore, M.P., India
| | - Shivani Bhagwat
- Suraksha Diagnostics Pvt. Ltd., Newtown, Rajarhat, Kolkata-West Bengal, India
| | - Rajesh Sharma
- School of Pharmacy, Devi Ahilya University, Indore-452001., M.P., India
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18
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Zhang A, Wang X, Fan C, Mao X. The Role of Ki67 in Evaluating Neoadjuvant Endocrine Therapy of Hormone Receptor-Positive Breast Cancer. Front Endocrinol (Lausanne) 2021; 12:687244. [PMID: 34803903 PMCID: PMC8597938 DOI: 10.3389/fendo.2021.687244] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 10/12/2021] [Indexed: 11/13/2022] Open
Abstract
Ki67 is a proliferation marker. It has been proposed as a useful clinical marker for breast cancer subtype classification, prognosis, and prediction of therapeutic response. But the questionable analytical validity of Ki67 prevents its widespread adoption of these measures for treatment decisions in breast cancer. Currently, Ki67 has been tested as a predictive marker for chemotherapy using clinical and pathological response as endpoints in neoadjuvant endocrine therapy. Ki67 can be used as a predictor to evaluate the recurrence-free survival rate of patients, or its change can be used to predict the preoperative "window of opportunity" in neoadjuvant endocrine therapy. In this review, we will elaborate on the role of Ki67 in neoadjuvant endocrine therapy in breast cancer.
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Affiliation(s)
- Ailin Zhang
- Department of Breast Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xiaojing Wang
- Department of Pathology, First Affiliated Hospital and College of Basic Medical Sciences of China Medical University, Shenyang, China
| | - Chuifeng Fan
- Department of Pathology, First Affiliated Hospital and College of Basic Medical Sciences of China Medical University, Shenyang, China
| | - Xiaoyun Mao
- Department of Breast Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
- *Correspondence: Xiaoyun Mao,
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