ESTRO 2025 - Abstract Book

S2384

Interdisciplinary – Other

ESTRO 2025

Conclusion Results suggest an improvement in time to radiotherapy performance due to the pathway work undertaken which was facilitated by Care Paths within Aria. Future work on all stages of Care Paths will provide continual performance analysis. This will facilitate further targeted pathway improvement projects and the potential to further improve performance with an aim to treat 80% of patients within 14 days.

Keywords: Workflow, Waiting, Target

2841

Digital Poster Radiotherapy in Patients with Pacemakers: Clinical Implementation of the AAPM TG-203 Protocol. Isabela Gaztelu 1 , Javier Sanchez 2 , Beatriz Spa 2 , Manuel Frutos 3 , Inmaculada Rincón 1 1 Radiation Oncology, Virgen del Rocio Hospital, Seville, Spain. 2 Physics, Virgen del Rocio Hospital, Seville, Spain. 3 Cardiology, Virgen del Rocio Hospital, Seville, Spain Purpose/Objective To assess the safety and efficacy of radiotherapy in patients with pacemakers using the AAPM TG-203 protocol at Virgen del Rocío Hospital. Material/Methods This retrospective study included 20 patients with pacemakers who received radiotherapy between 2015 and 2023. The cohort had an average age of 77.7 years, evenly split between men and women. Patients presented with various cancers, all with pacemakers located in the left thoracic region. Treatment adhered to AAPM TG-203 guidelines, minimizing direct radiation to devices and avoiding malfunctions or failures. Dose distribution was calculated using the AAA v16.1 Eclipse and Oncentra 4.3 algorithms. Four patients had non-dependent pacemakers (stimulation <10%), while the remaining were pacemaker-dependent. Cardiology evaluations were performed before treatment and, for some, during sessions.