S906
Clinical - Mixed sites & palliation
ESTRO 2026
reasons for admission in these units remains limited. This study describes the experience of a dedicated radiation oncology inpatient unit in a tertiary hospital. Material/Methods: This retrospective study was conducted from January 2023 to August 2025. Data were collected on patient age, sex, and comorbidity status, classifying patients as multipathological according to the Spanish Guideline for the Development of Clinical Practice Guidelines in Patients with Comorbidity and Pluripathology. Tumor type, stage, and reason for admission were also recorded. Radiotherapy (RT) status at admission and treatment intent were noted, as well as any complications during hospitalization. Descriptive and analytical statistical analyses were performed, with significance set at p < 0.05. Results: A total of 264 patients were included. The median age was 66 years (IQR 57–75); 55.3% were male, and 53.8% were multipathological. Lung cancer was the most frequent tumor (34.1%), followed by urological (13.6%), digestive (13.3%), central nervous system (11.0%), and
Conclusion: Hospitalization mainly involved patients with advanced lung cancer. Neurological impairment was the most frequent reason for admission and longer stays were associated with comorbidity, emphasizing the need for targeted attention to this profile. Radiotherapy was mostly pending and palliative intent at admission, reinforcing the need for supportive care for these patients. Keywords: Hospitalization, palliative radiotherapy Digital Poster 3807 Hospitalization patterns and risk factors associated with radiotherapy interruption in cancer patients: Experience from a radiation oncology ward. Elena Gomez Duque 1 , Gloria Guardia 1,2 , Alberto Fernández Romero 1 , Gloria Sánchez Naranjo 1 , Laura Fernández Banda 1 , Fernando García Luque 1 , Mariana Temes Ramos 1 , Pablo Alcaide Córdoba 1 , Alba Delgado Domínguez 1 , Juan Pablo Kim Kim 1 , Luz Fiorella Huertas Campos 1 , José Luis González Cuartero 1 , María Ángeles Perez Escutia 3 1 Radiation Ongology, Hospital Universitario 12 de Octubre, Madrid, Spain. 2 Radiation Ongology, Genesis Care, Madrid, Spain. 3 Radiation Oncology, Hospital Universitario 12 de Octubre, Madrid, Spain Purpose/Objective: Hospitalization due to radiotherapy (RT) complications poses a clinical challenge, often resulting in treatment interruptions that may compromise outcomes. Identifying patients at risk of discontinuation could optimize care and maintain treatment continuity. This study aimed to analyze hospitalized patients by RT status and identify factors associated with interruption
head and neck cancers (9.5%). Most patients presented with stage IV disease (80.7%). The
relationship between tumor type and stage is shown in Figure 1. The main reasons for admission, shown in Figure 2, were neurological impairment due to central nervous system (CNS) lesions (30.3%), spinal cord compression (15.9%), and uncontrolled pain (14.4%). At admission, RT was planned in 61.7% of patients, ongoing in 15.5%, and completed in 22.7%. The most frequent RT intent was palliative (59.1%), followed by radical (30.3%) and adjuvant (10.2%). Concurrent chemotherapy was administered in 61 patients (23.3%). The median hospital stay was 8 days (IQR 6– 15). Longer stays were significantly associated with comorbidity (p = 0.046). Complications occurred in 16.3% of patients and were not significantly related to multipathological status (p = 0.77), RT status (p = 0.51), or treatment intent (p = 0.13).
or discontinuation. Material/Methods:
This was a retrospective study conducted from January 2023 to August 2025, including all patients admitted to the Radiation Oncology ward. Data on patient, tumor characteristics and reason for admission were
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