Publications by authors named "Kwok-Leung Cheung"

Background: Although the relative proportion of triple-negative breast cancer decreases with age, its prevalence is rising with an aging population. This study examined real-world treatment practices, whether age in older women with triple-negative breast cancer affects therapy and outcomes, focusing on the potentially curable nature of early-stage triple-negative breast cancer.

Methods: A Preferred Reporting Items for Systematic Reviews and Meta-Analyses, PRISMA-compliant search using population, intervention, comparison, outcomes criteria identified literature from 2014 to 2023 across 5 databases (MEDLINE, Embase, PubMed, Web of Science, and Scopus), focusing on women aged 65 years and older with early-stage triple-negative breast cancer.

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Introduction: Prioritising quality of life (QoL) or length of life is often necessary in the decision-making process for cancer care. This may be complicated in patients with limited life expectancy due to age and comorbidities. Older women with early breast cancer often receive non-standard care (primary endocrine therapy [PET] or omission of chemotherapy or radiotherapy) to reduce treatment morbidity and maintain QoL.

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Background: Breast cancer is the most prevalent cancer globally. Primary treatment commonly involves surgery to the breast and axilla, which can potentially cause a variety of physical impairments, negatively affecting patients' quality of life. Consequently, effective rehabilitation techniques may help patients recover their physical function following surgery.

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Aims: We investigated factors related to the type of surgery, i.e. mastectomy versus breast conserving surgery (BCS), in breast cancer (BC) patients with complete pathologic response in the breast (ypT0) after neoadjuvant therapy (NAT).

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The global population is ageing and the risk of breast cancer increases with age. Therefore, we can expect an increase in the number of cases of breast cancer worldwide in the next 20 years. Currently, there are few age-specific guidelines for the management of breast cancer in older women.

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Breast cancer remains the most prevalent cancer worldwide, necessitating advancements in its management. Surgery remains the recommended primary treatment although neoadjuvant or adjuvant treatments, such as chemotherapy, may also be indicated. However, such medications confer a risk of toxicity, often resulting in dose reductions and hospitalisations.

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Article Synopsis
  • The global population is aging, and cancer rates are increasing, leading to more older adults living with cancer and requiring specialized care.
  • Recent advancements in oncology, such as earlier diagnosis and diverse treatment options, highlight the importance of preparing health services to effectively care for older cancer patients who often have complex needs.
  • This paper reviews the significant progress made in the UK in providing comprehensive geriatric assessments and new clinical services for older cancer patients, aiming to share these improvements with other healthcare systems.
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Background: This study reports the detailed management and outcomes of women treated with Primary Endocrine Therapy (PET) in a large prospective UK cohort of older women (≥70) with breast cancer.

Methods: This was an unplanned secondary analysis of a prospective, multicentre, observational study (The Age Gap study). Data were collected at baseline and regular intervals on patient, tumour and treatment characteristics with tumour RECIST response category recorded.

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Primary endocrine therapy (PET) offers non-surgical treatment for older women with early-stage breast cancer who are unsuitable for surgery due to frailty or comorbidity. This research assessed all-cause and breast cancer-specific mortality of PET vs. surgery in older women (≥70 years) with oestrogen-receptor-positive early-stage breast cancer by frailty and comorbidity levels.

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Introduction: The Sustainable Development Goals of the United Nations include a commitment to "leave no one behind" as a universal goal. To achieve this in geriatric oncology (GO) worldwide, it is important to understand the current state of GO at an international level. The International Society of Geriatric Oncology (SIOG) has several National Representatives (NRs) who act as SIOG's delegates in their respective countries.

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Objective: There is variation in practice in the treatment of older women with breast cancer. International guidelines highlight the importance of patient autonomy in treatment decision-making. The aim of this study is to identify factors which influence decision-making in older women with operable breast cancer, which will enable us to further understand how to support these patients.

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Introduction: The present study was designed to describe tumour features and treatments for patients with breast cancer. It also aimed at assessing the risk of distant metastases in relation to biological profiles, disease stages and treatment.

Methods: Data were analysed from 81,882 patients in the EUSOMA database (disease stages at diagnosis 0-IV; median age 61 years; range 20-100 years).

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Cancer is a disease associated with ageing. Managing cancer in older adults may prove challenging owing to pre-existing frailty, comorbidity, and wider holistic needs, as well as the unclear benefits and harms of standard treatment options. With the ongoing advances in oncology and the increasing complexity of treating older adults with cancer, the geriatric oncology field must be a priority for healthcare systems in education, research, and clinical practice.

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Article Synopsis
  • Breast cancer treatment options include mastectomy and breast-conserving surgery, each with different implications for recovery and quality of life.
  • Older women often face unique challenges and considerations when choosing between these surgical options.
  • Post-mastectomy reconstruction can significantly impact the quality of life for older women, aiming to improve both physical appearance and emotional well-being after surgery.
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Background: A previous systematic review by our team (2012) undertook comprehensive geriatric assessment (CGA) in breast cancer and concluded there was not sufficient evidence to instate CGA as mandatory practice. SIOG/EUSOMA guidelines published in 2021 advocate the use of CGA in breast cancer patients. The aim is to perform an updated systematic review of the literature.

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As older adults with cancer are underrepresented in randomized clinical trials (RCT), there is limited evidence on which to rely for treatment decisions for this population. Commonly used RCT endpoints for the assessment of treatment efficacy are more often tumor-centered (e.g.

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Most cancers occur in older people and the burden in this age group is increasing. Over the past two decades the evidence on how best to treat this population has increased rapidly. However, implementation of new best practices has been slow and needs involvement of policymakers.

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Background: Oncoplastic procedures allow excision of larger breast tumours, or unfavourable tumour/breast ratio lesions while achieving a good cosmetic outcome. This increases the pool of patients eligible for breast conservation over mastectomy, reducing the need for more extensive surgery in older women and potentially improving their quality of life. Nonetheless, studies to date suggest a poor uptake of oncoplastic breast surgery in the older group.

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  • Older women with breast cancer generally exhibit more favorable tumor biology than younger women, but the role of the androgen receptor (AR) in this population is under-researched.
  • A study analyzed surgical specimens from 575 older women and compared AR positivity and other biomarkers to a group of 1708 younger women, revealing that AR positivity is prevalent in both cohorts (59% in older women vs. 63% in younger women) and linked to better tumor characteristics.
  • AR-positive tumors in older women correlate with improved breast cancer-specific survival rates, indicating AR's potential prognostic value in breast cancer outcomes.
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Lymphedema can develop after treatment for breast cancer (BCRL). Lymphedema of the breast is not well studied. Currently, the main techniques used to diagnose and monitor the effectiveness of treatment are subjective clinician assessment and patient reports.

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Background: Polypharmacy is one factor contributing to increased mortality, hospitalization, and adverse drug reactions in older adults. The aim of this study was to measure the prevalence of polypharmacy in a cohort of older women with early-stage operable primary breast cancer and the relationship of polypharmacy to primary treatment decision and functional status.

Methods: A total of 139 patients with a new diagnosis of early-stage operable primary breast cancer proven histologically were recruited as part of a prospective study.

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Background: Old age is associated with increased co-morbidities, resulting in reduced life expectancy. Primary endocrine therapy is an alternative to primary surgical therapy for patients with breast cancer and increased co-morbidities. The aim was to review outcomes of primary endocrine therapy versus primary surgical therapy in older women with breast cancer.

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Introduction: An increasing number of postmenopausal women are diagnosed with breast cancer at an older age (≥ 70 years). There is a lack of synthesised health utility data to support decision-making for managing breast cancer in this older population. This study aimed to identify the availability of, and the subsequent impact of age on, health state utility values (HSUVs) measured by the EQ-5D for older women with early-stage breast cancer.

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