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Steadman JA, Hoskin TL, Klassen C, Boughey JC, Degnim AC, Piltin MA, Mrdutt MM, Johnson JE, Hieken TJ. Assessment of the effect of the American Society of Breast Surgery guidelines on contralateral prophylactic mastectomy rates for unilateral breast cancer. Surgery 2024; 175:677-686. [PMID: 37863697 DOI: 10.1016/j.surg.2023.09.015] [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: 05/08/2023] [Revised: 07/31/2023] [Accepted: 09/05/2023] [Indexed: 10/22/2023]
Abstract
BACKGROUND In July 2016, the American Society of Breast Surgeons published guidelines discouraging contralateral prophylactic mastectomy for average-risk women with unilateral breast cancer. We incorporated these into practice with structured patient counseling and aimed to assess the effect of this initiative on contralateral prophylactic mastectomy rates. METHODS We evaluated female patients with unilateral breast cancer undergoing mastectomy at our institution from January 2011 to November 2022. Variables associated with contralateral prophylactic mastectomy and trends over time were analyzed using the Wilcoxon rank sum test or χ2 analysis as appropriate. RESULTS Among 3,208 patients, (median age 54 years) 1,366 (43%) had a unilateral mastectomy, and 1,842 (57%) also had a concomitant contralateral prophylactic mastectomy. Across all patients, contralateral prophylactic mastectomy rates significantly decreased post-implementation from 2017 to 2019 (55%) vs 2015 to 2016 (62%) (P = .01) but increased from 2020 to 2022 (61%). Immediate breast reconstruction rate was 70% overall (81% with contralateral prophylactic mastectomy and 56% without contralateral prophylactic mastectomy, P < .001). Younger age, White race, mutation status, and earlier stage were also associated with contralateral prophylactic mastectomy. Genetic testing increased from 27% pre-guideline to 74% 2020 to 2022, as did the proportion of patients with a pathogenic variant (4% pre-guideline vs 11% from 2020-2022, P < .001), of whom 91% had a contralateral prophylactic mastectomy. Among tested patients without a pathogenic variant and patients not tested, contralateral prophylactic mastectomy rates declined from 78% to 67% and 48% to 38% pre -and post-guidelines, respectively, P < .001. CONCLUSION Implementation of specific patient counseling was effective in decreasing contralateral prophylactic mastectomy rates. While recognizing that patient choice plays a significant role in the decision for contralateral prophylactic mastectomy, further educational efforts are warranted to affect contralateral prophylactic mastectomy rates, particularly in the setting of negative genetic testing.
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Affiliation(s)
- Jessica A Steadman
- Division of Breast and Melanoma Surgical Oncology, Department of Surgery, Mayo Clinic, Rochester, MN
| | - Tanya L Hoskin
- Division of Biostatistics and Clinical Trials, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | | | - Judy C Boughey
- Division of Breast and Melanoma Surgical Oncology, Department of Surgery, Mayo Clinic, Rochester, MN
| | - Amy C Degnim
- Division of Breast and Melanoma Surgical Oncology, Department of Surgery, Mayo Clinic, Rochester, MN
| | - Mara A Piltin
- Division of Breast and Melanoma Surgical Oncology, Department of Surgery, Mayo Clinic, Rochester, MN
| | - Mary M Mrdutt
- Division of Breast and Melanoma Surgical Oncology, Department of Surgery, Mayo Clinic, Rochester, MN
| | - Jeffrey E Johnson
- Division of Breast and Melanoma Surgical Oncology, Department of Surgery, Mayo Clinic, Rochester, MN
| | - Tina J Hieken
- Division of Breast and Melanoma Surgical Oncology, Department of Surgery, Mayo Clinic, Rochester, MN.
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Griffin C, Fairhurst K, Stables I, Brunsden S, Potter S. Outcomes of Women Undergoing Mastectomy for Unilateral Breast Cancer Who Elect to Undergo Contralateral Mastectomy for Symmetry: A Systematic Review. Ann Surg Oncol 2024; 31:303-315. [PMID: 37749407 PMCID: PMC10695874 DOI: 10.1245/s10434-023-14294-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 08/29/2023] [Indexed: 09/27/2023]
Abstract
BACKGROUND Breast reconstruction (BR) is routinely offered to restore symmetry after mastectomy for breast cancer. Not all women, however, may want reconstructive surgery. A contralateral mastectomy (CM) to achieve "flat symmetry" can be an excellent alternative, but surgeons are often reluctant to offer this procedure. This systematic review aimed to summarize the available evidence regarding the outcomes of CM as the first step to developing guidelines in this area. METHODS PubMed, MEDLINE, CINAHL and PsycINFO were searched to identify primary research studies, published in English between 1 January 2000 and 30 August 2022, evaluating clinical or patient-reported outcomes for women who underwent a CM without reconstruction after a mastectomy for unilateral breast cancer. Simple descriptive statistics summarized quantitative data, and content analysis was used for qualitative data. RESULTS The study included 15 studies (13 quantitative, 1 qualitative, and 1 mixed-methods) evaluating outcomes for at least 1954 women who underwent a bilateral mastectomy without reconstruction (BM) after unilateral breast cancer. The risk of surgical complications after BM was higher than after unilateral mastectomy without reconstruction (UM) but significantly less than after BR. Satisfaction with the decision for BM was high in all the studies. Key themes relating to flat denial, stigma, and gender-based assumptions were identified. CONCLUSION Women electing to undergo BM reported high levels of satisfaction with their decision and complication rates similar to those for UM. Further study is needed to comprehensively explore the outcomes for women seeking BM, but these data should give surgeons confidence to offer the procedure as an alternative option for symmetry after unilateral mastectomy for breast cancer. REGISTRATION This systematic review was prospectively registered on the PROSPERO database (CRD42022353689).
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Affiliation(s)
- Cora Griffin
- Bristol Medical School, University of Bristol, Bristol, UK
| | | | - Imogen Stables
- King's College Hospital NHS Foundation Trust, London, UK
| | | | - Shelley Potter
- Bristol Medical School, University of Bristol, Bristol, UK.
- Bristol Breast Care Centre, North Bristol NHS Trust, Bristol, UK.
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3
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Zhao B, Yi M, Lyu H, Zhang X, Liu Y, Song X. Decision-making experiences of breast cancer patients related to contralateral prophylactic mastectomy-a systematic meta-synthesis of qualitative studies. Support Care Cancer 2023; 31:214. [PMID: 36918480 DOI: 10.1007/s00520-023-07674-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 03/07/2023] [Indexed: 03/16/2023]
Abstract
PURPOSE Currently, the choice of contralateral prophylactic mastectomy (CPM) for breast cancer patients is variable and controversial. Breast cancer patients must make complex and rapid decisions based on the benefits and risks of CPM. Although there are many qualitative studies on the decision-making experiences of breast cancer patients, there is a lack of synthesis of these qualitative studies. Our study goals were to conduct a meta-synthesis of qualitative studies on the decision-making experiences, real-life experiences, psychological feelings and needs of breast cancer patients in CPM decision-making, with the aim of providing information to support the development of CPM practice decisions. METHODS Using a meta-ethnographic approach, qualitative research studies were analysed and synthesised using the method of "reciprocal translational analysis", and themes related to the decision-making experiences of breast cancer patients with respect to CPM were identified. RESULTS Five hundred ninety-three documents were retrieved. This meta-synthesis ultimately collected 8 studies. Four themes were identified: (1) decision motivations for survival and body intention; (2) negative and vacillating decision emotions; (3) diverse but weak decision support; (4) short-term satisfaction but long-term unknown and differentiated decision effects. CONCLUSIONS We found that although patients had different feelings about the effects of CPM in detail, most patients were satisfied with the short-term effects of CPM, but the long-term effects of CPM were still unknown. The study protocol was registered with PROSPERO (International prospective register of systematic reviews) in May 2022 (Registration number: CRD42022334260).
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Affiliation(s)
- Baosheng Zhao
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324 Jingwu Weiqi Road, Jinan, 250021, Shandong Province, China
| | - Mo Yi
- School of Nursing and Rehabilitation, Shandong University, No. 44 Wenhuaxi Road, Jinan, 250012, Shandong Province, China
| | - Hong Lyu
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324 Jingwu Weiqi Road, Jinan, 250021, Shandong Province, China
| | - Xiaoman Zhang
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324 Jingwu Weiqi Road, Jinan, 250021, Shandong Province, China
| | - Yujie Liu
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324 Jingwu Weiqi Road, Jinan, 250021, Shandong Province, China
| | - Xinhong Song
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324 Jingwu Weiqi Road, Jinan, 250021, Shandong Province, China.
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Madan V, Mamounas EP. Is Sentinel Lymph Node Biopsy Necessary in Patients who Undergo Prophylactic Mastectomy? Clin Breast Cancer 2023; 23:231-236. [PMID: 36575101 DOI: 10.1016/j.clbc.2022.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/30/2022] [Accepted: 12/04/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND Over the last decade, rates of risk-reducing prophylactic mastectomy (PM) have risen dramatically. A topic of debate regarding the procedure is whether to use sentinel lymph node biopsy (SLNB) at the time of PM and what factors might predict for such need. In order to assess the rate of identifying presence of occult invasive breast cancer in the PM specimen, we performed a retrospective review of the pathology findings from a single-surgeon case-series of PM. METHODS Patients undergoing PM between January 2013 and June 2019 at Orlando Health Cancer Institute were identified for a retrospective chart review. Demographic, clinical, and histopathological data from the surgical procedure were collected and analyzed for the incidence of occult invasive breast cancer in the PM specimen. RESULTS A total of 146 consecutive patients with PM were identified; 120 (82.2%) underwent contralateral PM (CPM) and 26 (17.8%) underwent bilateral PM (BPM). Final pathology of the 172 PM specimens identified 4 (3.3%) with lobular carcinoma in situ, 3 (2.5%) with atypical ductal hyperplasia, and 2 (1.7%) with atypical lobular hyperplasia and 2 (1.7%) with intraductal papilloma. No invasive malignancy was detected in any of the 172 PM specimens. CONCLUSIONS The absence of occult invasive carcinoma in 172 consecutive PM specimens suggests a limited clinical utility in routinely performing SLNB in this setting. This study also suggests that use of preoperative breast MRI imaging could offer a potential non-invasive tool to detect occult malignancy and select patients who can safely undergo omission of SLNB at the time of PM.
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Parker G, Shahid N, Rappon T, Kastner M, Born K, Berta W. Using theories and frameworks to understand how to reduce low-value healthcare: a scoping review. Implement Sci 2022; 17:6. [PMID: 35057832 PMCID: PMC8772067 DOI: 10.1186/s13012-021-01177-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 11/30/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND There is recognition that the overuse of procedures, testing, and medications constitutes low-value care which strains the healthcare system and, in some circumstances, can cause unnecessary stress and harm for patients. Initiatives across dozens of countries have raised awareness about the harms of low-value care but have had mixed success and the levels of reductions realized have been modest. Similar to the complex drivers of implementation processes, there is a limited understanding of the individual and social behavioral aspects of de-implementation. While researchers have begun to use theory to elucidate the dynamics of de-implementation, the research remains largely atheoretical. The use of theory supports the understanding of how and why interventions succeed or fail and what key factors predict success. The purpose of this scoping review was to identify and characterize the use of theoretical approaches used to understand and/or explain what influences efforts to reduce low-value care. METHODS We conducted a review of MEDLINE, EMBASE, CINAHL, and Scopus databases from inception to June 2021. Building on previous research, 43 key terms were used to search the literature. The database searches identified 1998 unique articles for which titles and abstracts were screened for inclusion; 232 items were selected for full-text review. RESULTS Forty-eight studies met the inclusion criteria. Over half of the included articles were published in the last 2 years. The Theoretical Domains Framework (TDF) was the most commonly used determinant framework (n = 22). Of studies that used classic theories, the majority used the Theory of Planned Behavior (n = 6). For implementation theories, Normalization Process Theory and COM-B were used (n = 7). Theories or frameworks were used primarily to identify determinants (n = 37) and inform data analysis (n = 31). Eleven types of low-value care were examined in the included studies, with prescribing practices (e.g., overuse, polypharmacy, and appropriate prescribing) targeted most frequently. CONCLUSIONS This scoping review provides a rigorous, comprehensive, and extensive synthesis of theoretical approaches used to understand and/or explain what factors influence efforts to reduce low-value care. The results of this review can provide direction and insight for future primary research to support de-implementation and the reduction of low-value care.
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Affiliation(s)
- Gillian Parker
- Institute of Health Policy, Management and Evaluation, University of Toronto, 155 College Street, 4th Floor, Toronto, Ontario M5T 3M6 Canada
| | - Nida Shahid
- Institute of Health Policy, Management and Evaluation, University of Toronto, 155 College Street, 4th Floor, Toronto, Ontario M5T 3M6 Canada
| | - Tim Rappon
- Institute of Health Policy, Management and Evaluation, University of Toronto, 155 College Street, 4th Floor, Toronto, Ontario M5T 3M6 Canada
| | - Monika Kastner
- Centre for Research and Innovation, North York General Hospital, 4001, Leslie Street, Toronto, Ontario M2K 1E1 Canada
| | - Karen Born
- Institute of Health Policy, Management and Evaluation, University of Toronto, 155 College Street, 4th Floor, Toronto, Ontario M5T 3M6 Canada
| | - Whitney Berta
- Institute of Health Policy, Management and Evaluation, University of Toronto, 155 College Street, 4th Floor, Toronto, Ontario M5T 3M6 Canada
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Jansen J, Serafimovska A, Glassey R, Zdenkowski N, Saunders C, Porter D, Butow P. The implementation of a decision aid for women with early-stage breast cancer considering contralateral prophylactic mastectomy: A pilot study. PATIENT EDUCATION AND COUNSELING 2022; 105:74-80. [PMID: 34034935 DOI: 10.1016/j.pec.2021.04.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/26/2021] [Accepted: 04/28/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE Despite little survival benefit and potential for harm, contralateral prophylactic mastectomy (CPM) rates are increasing amongst early-stage breast cancer patients at low contralateral breast cancer risk. We developed a CPM decision aid (DA) and conducted a pilot implementation. METHODS Surgeons and oncologists recruited eligible patients considering CPM. Consenting patients received the DA, completed a questionnaire and participated in a semi-structured interview. Clinicians were interviewed at study close. RESULTS Eleven clinicians and 31 patients participated. Three themes emerged: perceived utility and impact of the DA, disagreement regarding timing of delivery and target population, and implementation strategies. Both women and clinicians found the DA valuable, indicating it confirmed rather than changed preferences. Women (all of whom raised CPM themselves), preferred offering the DA early in treatment discussions whilst clinicians favoured targeting women who enquired about CPM. CONCLUSION A DA about CPM is feasible and acceptable, but questions remain about the role of DAs in these types of decisions where one option has limited medical benefit. PRACTICE IMPLICATIONS Some women have a high need to make an informed choice about CPM. Tools to support this could include a DA with a clear recommendation against CPM and an explanation why.
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Affiliation(s)
- J Jansen
- Department of Family Medicine, School Care and Public Health Research Institute (CAPHRI), Faculty of Health Medicine and Life Sciences (FHML), Maastricht University, Peter Debyeplein 1, 6229 HA Maastricht, P.O. Box 616, 6200 MD Maastricht, The Netherlands.
| | - A Serafimovska
- Centre for Medical Psychology and Evidence-based Decision-making, School of Psychology, University of Sydney, Australia
| | - R Glassey
- School of Medicine, University of Western Australia, Perth, Australia
| | - N Zdenkowski
- Faculty of Health and Medicine, The University of Newcastle, Newcastle, Australia; Breast Cancer Trials, Newcastle, Australia
| | - C Saunders
- School of Medicine, University of Western Australia, Perth, Australia
| | | | - P Butow
- Centre for Medical Psychology and Evidence-based Decision-making, School of Psychology, University of Sydney, Australia
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Ha M, Ngaage LM, Klein M, Yang A, Colohan SM, Nurudeen SM, Terhune JH, Slezak S, Rasko YM. Contralateral prophylactic mastectomy in the setting of breast cancer diagnosis and their insurance coverage in the United States. Breast J 2021; 27:746-752. [PMID: 34528334 DOI: 10.1111/tbj.14280] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/02/2021] [Accepted: 08/04/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND Contralateral prophylactic mastectomy (CPM) is more common in the United States than the rest of the world. However, the benefit of this procedure is still under question in many breast cancer scenarios. CPM utilization in the United States is in part dependent on a patient's health insurance coverage of breast oncology surgery and any desired reconstruction. However, there are great discrepancies in the coverage provided by insurers. METHODS The authors conducted a cross-sectional analysis of insurance policies for a CPM in the setting of diagnosed breast cancer. One hundred companies were selected based on their state enrollment and market share. Their policies were identified through a Web-based search and telephone interviews, and their medical necessity criteria were extracted. RESULTS Of the 100 companies assessed, 36 (36%) had a policy for CPM. Within those, significantly more provided coverage than denied the procedure (72% vs. 25%, p < 0.0001), with the remainder providing case-by-case coverage. Eleven criteria were identified from preauthorized policies, the most common prerequisite was breast cancer diagnosis under 45 years old (n = 9, 35%). Most policies did not differentiate between gender in their policies (n = 25, 69%), but of those that did, 100% (n = 11) provided coverage for men and women, with 82% (n = 9) requiring further criteria from the female patients. CONCLUSION The coverage of CPM in the United States varies from complete denial to unrestricted approval. This may be due to conflicting reports in the literature as to the utility of the procedure. The decision to undergo this procedure must be taken with thoughtful consideration and the support of a multidisciplinary approach.
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Affiliation(s)
- Michael Ha
- Division of Plastic Surgery, Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Ledibabari M Ngaage
- Division of Plastic Surgery, Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA.,Department of Plastic and Reconstructive Surgery, Johns Hopkins University, Baltimore, Maryland, USA
| | - Marissa Klein
- Division of Plastic Surgery, Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Annie Yang
- Division of Plastic Surgery, Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Shannon M Colohan
- Division of Plastic Surgery, Department of Surgery, University of Washington, Seattle, Washington, USA
| | - Suliat M Nurudeen
- Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Julia H Terhune
- Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Sheri Slezak
- Division of Plastic Surgery, Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Yvonne M Rasko
- Division of Plastic Surgery, Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
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Lim DW, Retrouvey H, Kerrebijn I, Butler K, O'Neill AC, Cil TD, Zhong T, Hofer SOP, McCready DR, Metcalfe KA. Longitudinal Study of Psychosocial Outcomes Following Surgery in Women with Unilateral Nonhereditary Breast Cancer. Ann Surg Oncol 2021; 28:5985-5998. [PMID: 33821345 DOI: 10.1245/s10434-021-09928-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 03/18/2021] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Rates of bilateral mastectomy are rising in women with unilateral, nonhereditary breast cancer. We aim to characterize how psychosocial outcomes evolve after breast cancer surgery. PATIENTS AND METHODS We performed a prospective cohort study of women with unilateral, sporadic stage 0-III breast cancer at University Health Network in Toronto, Canada between 2014 and 2017. Women completed validated psychosocial questionnaires (BREAST-Q, Impact of Event Scale, Hospital Anxiety & Depression Scale) preoperatively, and at 6 and 12 months following surgery. Change in psychosocial scores was assessed between surgical groups using linear mixed models, controlling for age, stage, and adjuvant treatments. P < .05 were significant. RESULTS A total of 475 women underwent unilateral lumpectomy (42.5%), unilateral mastectomy (38.3%), and bilateral mastectomy (19.2%). There was a significant interaction (P < .0001) between procedure and time for breast satisfaction, psychosocial and physical well-being. Women having unilateral lumpectomy had higher breast satisfaction and psychosocial well-being scores at 6 and 12 months after surgery compared with either unilateral or bilateral mastectomy, with no difference between the latter two groups. Physical well-being declined in all groups over time; scores were not better in women having bilateral mastectomy. While sexual well-being scores remained stable in the unilateral lumpectomy group, scores declined similarly in both unilateral and bilateral mastectomy groups over time. Cancer-related distress, anxiety, and depression scores declined significantly after surgery, regardless of surgical procedure (P < .001). CONCLUSIONS Psychosocial outcomes are not improved with contralateral prophylactic mastectomy in women with unilateral breast cancer. Our data may inform women considering contralateral prophylactic mastectomy.
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Affiliation(s)
- David W Lim
- Women's College Research Institute, Women's College Hospital, Toronto, ON, Canada. .,Department of Surgery, Women's College Hospital, Toronto, ON, Canada. .,Division of General Surgery, University Health Network (Princess Margaret Cancer Centre), Toronto, ON, Canada.
| | - Helene Retrouvey
- Division of Plastic Surgery, University Health Network and Mount Sinai Hospital, Toronto, ON, Canada
| | - Isabel Kerrebijn
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Kate Butler
- Division of Plastic Surgery, University Health Network and Mount Sinai Hospital, Toronto, ON, Canada
| | - Anne C O'Neill
- Division of Plastic Surgery, University Health Network and Mount Sinai Hospital, Toronto, ON, Canada
| | - Tulin D Cil
- Department of Surgery, Women's College Hospital, Toronto, ON, Canada.,Division of General Surgery, University Health Network (Princess Margaret Cancer Centre), Toronto, ON, Canada
| | - Toni Zhong
- Division of Plastic Surgery, University Health Network and Mount Sinai Hospital, Toronto, ON, Canada
| | - Stefan O P Hofer
- Division of Plastic Surgery, University Health Network and Mount Sinai Hospital, Toronto, ON, Canada
| | - David R McCready
- Division of General Surgery, University Health Network (Princess Margaret Cancer Centre), Toronto, ON, Canada
| | - Kelly A Metcalfe
- Women's College Research Institute, Women's College Hospital, Toronto, ON, Canada.,Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Toronto, ON, Canada
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Kapur H, Warburton R, Pao JS, Dingee C, Chen L, McKevitt E. Decreasing contralateral prophylactic mastectomy rates in average-risk women with unilateral breast cancer. Am J Surg 2021; 221:1172-1176. [PMID: 33795126 DOI: 10.1016/j.amjsurg.2021.03.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 03/02/2021] [Accepted: 03/16/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND Contralateral prophylactic mastectomy (CPM) is not recommended for average-risk women with breast cancer due to lack of evidence for survival benefit, yet recent studies demonstrate increasing CPM rates. METHODS We identified patients with breast cancer treated with unilateral mastectomy (UM) with or without CPM. Rates of malignancy in CPM specimens and factors in CPM rates were assessed. RESULTS From 2013 to 2017, 1353 patients had UM and 355 had CPM. Our institution's occult malignancy detection rate was 5.04%. CPM rates decreased from 31.6% to 17.3% (p < 0.001) over 5 years. Compared to patients receiving UM only, patients receiving CPMs had significantly higher reconstruction rates (p < 0.001), which did not significantly change over time (p = 0.551) and tended to be younger (p < 0.001). CONCLUSIONS Patients having UM have low risk of contralateral malignancy. CPM is associated with younger age and breast reconstruction, suggesting factors to identify for patient and provider education.
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Affiliation(s)
- Hannah Kapur
- Providence Breast Centre, Mount Saint Joseph Hospital, 3080 Prince Edward Street, Vancouver, BC V5T 3N4, Canada; Department of Surgery, Faculty of Medicine, University of British Columbia, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada.
| | - Rebecca Warburton
- Providence Breast Centre, Mount Saint Joseph Hospital, 3080 Prince Edward Street, Vancouver, BC V5T 3N4, Canada; Department of Surgery, Faculty of Medicine, University of British Columbia, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada.
| | - Jin-Si Pao
- Providence Breast Centre, Mount Saint Joseph Hospital, 3080 Prince Edward Street, Vancouver, BC V5T 3N4, Canada; Department of Surgery, Faculty of Medicine, University of British Columbia, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada.
| | - Carol Dingee
- Providence Breast Centre, Mount Saint Joseph Hospital, 3080 Prince Edward Street, Vancouver, BC V5T 3N4, Canada; Department of Surgery, Faculty of Medicine, University of British Columbia, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada.
| | - Leo Chen
- Department of Surgery, Faculty of Medicine, University of British Columbia, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada.
| | - Elaine McKevitt
- Providence Breast Centre, Mount Saint Joseph Hospital, 3080 Prince Edward Street, Vancouver, BC V5T 3N4, Canada; Department of Surgery, Faculty of Medicine, University of British Columbia, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada.
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10
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Lim DW, Metcalfe KA, Narod SA. Bilateral Mastectomy in Women With Unilateral Breast Cancer: A Review. JAMA Surg 2021; 156:569-576. [PMID: 33566074 DOI: 10.1001/jamasurg.2020.6664] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Importance Rates of bilateral mastectomy continue to increase in average-risk women with unilateral in situ and invasive breast cancer. Contralateral prophylactic mastectomy rates increased from 5% to 12% of all operations for breast cancer in the US from 2004 to 2012. Among women having mastectomy, rates of contralateral prophylactic mastectomy have increased from less than 2% in 1998 to 30% in 2012. Observations The increased use of breast magnetic resonance imaging and genetic testing has marginally increased the number of candidates for bilateral mastectomy. Most bilateral mastectomies are performed on women who are at no special risk for contralateral cancer. The true risk of contralateral breast cancer is not associated with the decision for contralateral prophylactic mastectomy; rather, the clinical factors associated with the probability of distant recurrence are associated with bilateral mastectomy. Several changes in society and health care delivery appear to act concurrently and synergistically. First, the anxiety engendered by a fear of cancer recurrence is focused on the contralateral cancer because this is most easily conceptualized and provides a ready target that can be acted upon. Second, the modern woman with breast cancer is supported by the surgeon and the social community of breast cancer survivors. Surgeons want to respect patient autonomy, despite guidelines discouraging bilateral mastectomy, and most women have their expenses covered by a third-party payer. Satisfaction with the results is high, but the association with improved psychosocial well-being remains to be fully understood. Conclusions and Relevance Reducing the use of medically unnecessary contralateral prophylactic mastectomy in women with nonhereditary, unilateral breast cancer requires a social change that addresses patient-, physician-, cultural-, and systems-level enabling factors. Such a transformation begins with educating clinicians and patients. The concerns of women who want preventive contralateral mastectomy must be explored, and women need to be informed of the anticipated benefits (or lack thereof) and risks. Areas requiring further study are considered.
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Affiliation(s)
- David W Lim
- Women's College Research Institute, Women's College Hospital, Toronto, Ontario, Canada
| | - Kelly A Metcalfe
- Women's College Research Institute, Women's College Hospital, Toronto, Ontario, Canada.,Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Toronto, Ontario, Canada
| | - Steven A Narod
- Women's College Research Institute, Women's College Hospital, Toronto, Ontario, Canada.,Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.,Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
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11
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Canada follows the US in the rise of bilateral mastectomies for unilateral breast cancer: a 23-year population cohort study. Breast Cancer Res Treat 2020; 185:517-525. [PMID: 33128192 DOI: 10.1007/s10549-020-05965-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 10/05/2020] [Indexed: 12/11/2022]
Abstract
INTRODUCTION The use of contralateral prophylactic mastectomy (CPM) continues to grow despite the absence of evidence supporting a survival benefit. This study's objectives were to (1) describe the trends in the rates of unilateral and bilateral mastectomy (BM) in women diagnosed with unilateral breast cancer (UBC) in Ontario, Canada from 1991 to 2013, and (2) identify factors associated with BM to treat UBC. METHODS This retrospective cohort analysis included all women aged 18 and older diagnosed with UBC between January 1991 and December 2013. Health administrative data from the Institute for Clinical Evaluative Sciences, the Ontario Cancer Registry, and the Discharge Abstract Database were used to identify all breast cancer and mastectomy cases. Age-adjusted mastectomy rates were plotted over time. Univariable and multivariable analyses included clinically significant covariates. RESULTS From 1991 to 2013 there were 172,165 cases of UBC and 64,886 mastectomies (37.7%) performed in Ontario. 13.6% of the mastectomies were bilateral. BM rates increased over sixfold (from 4 to 25%) across all age groups under age 70 over a 23-year period. On multivariable analysis, younger age, higher income, rural community, earlier breast cancer stage, lobular histology, availability of reconstruction and teaching hospitals were associated with increased odds of BM. CONCLUSIONS This is the largest population study of breast cancer patients in Canada and shows an increasing rate of BM for UBC. The results are similar to those already described in the US and highlight the importance of continued efforts to promote efficient communication and evidence-based decision-making prior to breast surgery.
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