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. 2023:188:63-88.
doi: 10.1007/978-3-031-33602-7_3.

Screening Programs for Breast Cancer: Toward Individualized, Risk-Adapted Strategies of Early Detection

Dario Trapani  1 , Josè Sandoval  2   3 , Pamela Trillo Aliaga  4   5 , Liliana Ascione  4   5 , Pier Paolo Maria Berton Giachetti  4   5 , Giuseppe Curigliano  4   5 , Ophira Ginsburg  6
Affiliations

Screening Programs for Breast Cancer: Toward Individualized, Risk-Adapted Strategies of Early Detection

Dario Trapani et al. Cancer Treat Res. 2023.

Abstract

Early detection of breast cancer (BC) comprises two approaches: screening of asymptomatic women in a specified target population at risk (usually a target age range for women at average risk), and early diagnosis for women with BC signs and symptoms. Screening for BC is a key health intervention for early detection. While population-based screening programs have been implemented for age-selected women, the pivotal clinical trials have not addressed the global utility nor the improvement of screening performance by utilizing more refined parameters for patient eligibility, such as individualized risk stratification. In addition, with the exception of the subset of women known to carry germline pathogenetic mutations in (high- or moderately-penetrant) cancer predisposition genes, such as BRCA1 and BRCA2, there has been less success in outreach and service provision for the unaffected relatives of women found to carry a high-risk mutation (i.e., "cascade testing") as it is in these individuals for whom such actionable information can result in cancers (and/or cancer deaths) being averted. Moreover, even in the absence of clinical cancer genetics services, as is the case for the immediate and at least near-term in most countries globally, the capacity to stratify the risk of an individual to develop BC has existed for many years, is available for free online at various sites/platforms, and is increasingly being validated for non-Caucasian populations. Ultimately, a precision approach to BC screening is largely missing. In the present chapter, we aim to address the concept of risk-adapted screening of BC, in multiple facets, and understand if there is a value in the implementation of adapted screening strategies in selected women, outside the established screening prescriptions, in the terms of age-range, screening modality and schedules of imaging.

Keywords: Breast cancer; Breast cancer screening; Customized schedule; Early detection; Escalation and de-escalation; Risk-adapted.

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