ESTRO 2026 - Abstract Book PART II

S3050

Invited Speaker

ESTRO 2026

5536 The Radiosurgery Society (RSS) Ben J Slotman Radiation Oncology, AmsterdamUMC, Amsterdam, Netherlands The Radiosurgery Society ® (RSS) is an international, non-profit society consisting of physicians, physicists and other healthcare professionals dedicated to advancing the education, science and clinical practice of stereotactic radiosurgery (SRS) and stereotactic body radiation therapy (SBRT). The RSS aims to champion the evolution of science, clinical practices, and technological innovations in the fields of stereotactic treatments of brain and body by providing an international forum for collaboration and education, and encouraging global adoption of techniques offering optimum safety and efficacy for patients. Although it originally started as the CyberKnife Society, the RSS was founded in 2011 and is completely vendor-agnostic. The RSS has members who use all different technologies, including all linac- and Co- based systems. In more recent years, the RSS also covers new advancing fields such as GRID, Lattice and microbeams. The RSS represents over 800 members in nearly 50 countries. The Society manages the longest- established patient registry dedicated to SRS and SBRT, exceeding 30,000 cases. Among its activities, the society hosts an annual scientific meeting, educational and research programs, has an accreditation system, a strong residents representation. Membership of the RSS offers access to key resources for residents/trainees entering the field and seasoned professionals throughout the world. The society’s commitment to advancing therapies provides opportunities for members to: • Learn about recent advancements and practical applications • Stay current with scientific developments and technological breakthroughs • Collaborate globally with fellow professionals developing curricula • Engage with researchers and industry experts The 2027 annual meeting of the RSS will take place in Amsterdam, The Netherlands, from March 17-20. 5537 When surgery isn’t an option: Radiotherapy strategies for unresectable, non-metastatic sarcomas Carlo Greco Radiation Oncology, Champalimaud Centre for the Unknown, Lisbon, Portugal

strengthen adaptive coping strategies. Techniques such as relaxation training, guided imagery, and brief supportive counseling have shown effectiveness in reducing anxiety and improving treatment adherence. Effective communication and continuous psychological support are essential to foster patient empowerment, enabling individuals to actively participate in their care and maintain a sense of control throughout treatment. Caregivers play a vital role in supporting patients throughout radiotherapy, assisting with daily logistics, transportation, and emotional support. However, they may experience significant burden, including stress, anticipatory anxiety, and difficulties balancing caregiving responsibilities with personal and professional roles. Structured support for caregivers is therefore essential and may include psychoeducation, counseling sessions, and the promotion of social support networks. Recognizing caregivers as active participants in the care process enhances both patient and caregiver well-being. The radiotherapy setting offers unique opportunities for continuous psychosocial monitoring due to the frequency of patient contact with healthcare professionals. This allows for early identification of distress and timely intervention. Effective communication within the multidisciplinary team is crucial to ensure coordinated and patient-centered care. A relational perspective should be adopted, facilitating communication between patients and caregivers and supporting shared understanding of the treatment experience and a dyadic distress mangagement. Environmental and procedural aspects of radiotherapy require particular attention. Interventions that include preparatory information and the humanization of the treatment environment can mitigate distress and enhance patients’ sense of control and empowerment. In conclusion, guiding and supporting patients and caregivers in radiotherapy requires a combination of effective communication and interdisciplinary collaboration contributes to improved psychological outcomes, treatment adherence, and overall quality of life. References: Zhao, 2025, International Journal of Radiation Oncology Biology Physics; Tonsbeek, 2024, Oral Oncology; Tang, 2023, Journal of Multidisciplinary Healthcare; Lewis, 2021, The Laryngoscope; Uysal, 2021, Supportive Care in Cancer; Rogers, 2020, European Archives of Oto-Rhino- Laryngology; Astrup, 2020, European Journal of Cancer Care;

Rocque, 2019, The Oncologist; Nightingale, 2016, Chronic Illness

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