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B.L.W. Krijvenaar

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Master thesis (2026) - R. Hoogveld, V. Pannunzio, B.L.W. Krijvenaar, Jakob Dam
Cervical cancer is a cancer that is largely preventable, which is already addressed through screening programmes and diagnostic pathways. However, current programmes and pathways have their limitations. The current test is subjective, labour intensive, and contributes to unnecessary referrals and overtreatment, which creates an extra burden on patients and the healthcare system. These limitations create a need for an improved test which addresses these limitations. A solution is the methylation test, however, implementing a new test in the healthcare system is not simple.

This graduation project explored how the methylation tests could be positioned and implemented in the cervical cancer prevention and diagnostics market. This is explored in collaboration with Self-screen, that develops the methylation tests. Methylation tests are a promising alternative since they are objective, support better risk stratification, can reduce unnecessary referrals and treatments and are effective on self-samples.

Although the scientific evidence for methylation is strong, its adoption is still slow. The key challenge was how and where to position methylation in an already well-established healthcare system. Existing routines, limited awareness among gynaecologists, clinical guidelines, reimbursement and laboratory capacity all affect adoption.

This project followed a Double Diamond design approach and combined a literature review, stakeholder analysis, competitor analysis and interviews with different stakeholders. The findings from this research show that methylation tests are especially valuable in situations where the current test leaves uncertainty in the diagnostics of cervical cancer. Specifically in the situations where treatment should be avoided, such as younger women with a child wish and pregnant women. In addition, the research showed that the strategy should focus on increasing awareness, building trust and communicating the clinical added value of methylation tests to gynaecologists.

Based on these insights, a strategic and tactical roadmap for the gradual implementation of methylation tests is developed. Instead of implementation in the national screening programme, the proposed strategy focuses on implementation in cervical cancer diagnostics. This can be implemented more easily in the short-term and can help to create value earlier and build acceptance for later implementation in the screening programme. The designed roadmap is structured in three horizons. The first horizon focuses on creating awareness and identifying gynaecologist spokespersons. The second horizon focuses on sharing information with other gynaecologists through webinars and articles. The third horizon focuses on evaluating the use of methylation tests, improving the process and scaling the adoption by sharing results with more gynaecologists.

This strategy contributes to the implementation of methylation tests in the screening programme for cervical cancer, by first positioning methylation as a tool to support clinical decision-making in the diagnostics for cervical cancer. This strategy is effective since it supports clinical needs and decision-making processes, it fits within existing diagnostic workflows and enables the use of the test in practice. By first introducing the methylation tests in diagnostics, awareness and trust among gynaecologists can be built. This way, a strong foundation can be created for the long-term integration into the Dutch cervical cancer screening programme.
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Exploring how design can contribute to balancing care demand and capacity in rheumatology

Master thesis (2026) - K. Nouwen, A. Albayrak, B.L.W. Krijvenaar
The Dutch healthcare system is under increasing pressure from demographic ageing, rising care demand, and limited specialist capacity. In rheumatology, this pressure is particularly visible: a growing share of patients referred to specialist care do not necessarily require specialist treatment, contributing to long waiting times and high workloads. Understanding why this happens requires looking at the system as a whole, rather than at isolated steps in the care pathway.

This project explored how design can contribute to balancing the inflow of patients with joint complaints and the capacity of rheumatology care, using the rheumatology department of Reinier de Graaf Gasthuis as its primary context. The research combined observations at four hospital settings, eighteen semi-structured interviews with patients, primary care professionals, secondary care professionals, and a systemic stakeholder, thematic analysis, and future visioning.

The research revealed four interconnected opportunities in the system: 'Bridging the gap between patient expectations and what care can offer', 'Primary care as a powerful filter for the right care at the right place', 'The patient as the most powerful factor in their own recovery', and 'Working smarter within the boundaries of a financially constrained system'. The design direction was focused on the opportunity where design could intervene most directly: supporting patients in taking a more active role in their own recovery in relation to lifestyle factors.

This led to the development of Jointly, a mobile application for people with non-inflammatory joint complaints in primary care. Jointly helps users reflect on their complaints, recognise the role of lifestyle factors, and translate these insights into small, feasible actions in daily life. The app uses an AI coach named Skelly to guide users through daily check-ins, personal insights, and concrete next steps, structured around the six domains of 'Het Leefstijlroer'. An optional community function allows users to connect with others in similar situations.

Jointly is positioned after the GP consultation and before referral to secondary care is considered, offering patients guidance and a sense of agency during a phase in which they are often expected to manage their complaints independently. Initial validation with a patient and two general practitioners confirmed the relevance of the concept, while also highlighting the importance of scientific credibility, continuity of support, and careful implementation. If successfully implemented, Jointly has the potential to contribute to fewer unnecessary referrals to rheumatology and a more active role for patients in their own recovery, though these effects require further longitudinal research to evaluate. ...